diff options
Diffstat (limited to 'drivers/media/video/mxc/output')
| -rw-r--r-- | drivers/media/video/mxc/output/Kconfig | 28 | ||||
| -rw-r--r-- | drivers/media/video/mxc/output/Makefile | 14 | ||||
| -rw-r--r-- | drivers/media/video/mxc/output/mx31_v4l2_wvga_output.c | 1928 | ||||
| -rw-r--r-- | drivers/media/video/mxc/output/mxc_pxp_v4l2.c | 1237 | ||||
| -rw-r--r-- | drivers/media/video/mxc/output/mxc_pxp_v4l2.h | 82 | ||||
| -rw-r--r-- | drivers/media/video/mxc/output/mxc_v4l2_output.c | 2793 | ||||
| -rw-r--r-- | drivers/media/video/mxc/output/mxc_v4l2_output.h | 157 |
7 files changed, 6239 insertions, 0 deletions
diff --git a/drivers/media/video/mxc/output/Kconfig b/drivers/media/video/mxc/output/Kconfig new file mode 100644 index 000000000000..2153ad248907 --- /dev/null +++ b/drivers/media/video/mxc/output/Kconfig @@ -0,0 +1,28 @@ +config VIDEO_MXC_IPU_OUTPUT + bool "IPU v4l2 support" + depends on VIDEO_MXC_OUTPUT && MXC_IPU + default y + ---help--- + This is the video4linux2 driver for IPU post processing video output. + +config VIDEO_MXC_IPUV1_WVGA_OUTPUT + bool "IPUv1 WVGA v4l2 display support" + depends on VIDEO_MXC_OUTPUT && MXC_IPU + default n + ---help--- + This is the video4linux2 driver for IPUv1 WVGA post processing video output. + +config VIDEO_MXC_EMMA_OUTPUT + bool + depends on VIDEO_MXC_OUTPUT && MXC_EMMA && FB_MXC_SYNC_PANEL + default y + ---help--- + This is the video4linux2 driver for EMMA post processing video output. + +config VIDEO_MXC_OUTPUT_FBSYNC + bool "Synchronize the output with LCDC refresh" + depends on VIDEO_MXC_EMMA_OUTPUT + default y + ---help--- + Synchronize the post-processing with LCDC EOF (End of Frame) to + prevent tearing issue. If unsure, say Y. diff --git a/drivers/media/video/mxc/output/Makefile b/drivers/media/video/mxc/output/Makefile new file mode 100644 index 000000000000..500442544902 --- /dev/null +++ b/drivers/media/video/mxc/output/Makefile @@ -0,0 +1,14 @@ +ifeq ($(CONFIG_VIDEO_MXC_EMMA_OUTPUT),y) + mx27_output-objs := mx27_v4l2_output.o mx27_pp.o + obj-$(CONFIG_VIDEO_MXC_OUTPUT) += mx27_output.o +endif + +ifeq ($(CONFIG_VIDEO_MXC_IPU_OUTPUT),y) + obj-$(CONFIG_VIDEO_MXC_OUTPUT) += mxc_v4l2_output.o +endif +ifeq ($(CONFIG_VIDEO_MXC_PXP_V4L2),y) + obj-$(CONFIG_VIDEO_MXC_PXP_V4L2) += mxc_pxp_v4l2.o +endif +ifeq ($(CONFIG_VIDEO_MXC_IPUV1_WVGA_OUTPUT),y) + obj-$(CONFIG_VIDEO_MXC_OUTPUT) += mx31_v4l2_wvga_output.o +endif diff --git a/drivers/media/video/mxc/output/mx31_v4l2_wvga_output.c b/drivers/media/video/mxc/output/mx31_v4l2_wvga_output.c new file mode 100644 index 000000000000..fe4346ee56dd --- /dev/null +++ b/drivers/media/video/mxc/output/mx31_v4l2_wvga_output.c @@ -0,0 +1,1928 @@ +/* + * Copyright 2005-2010 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +/*! + * @file drivers/media/video/mxc/output/mxc_v4l2_output.c + * + * @brief MXC V4L2 Video Output Driver + * + * Video4Linux2 Output Device using MXC IPU Post-processing functionality. + * + * @ingroup MXC_V4L2_OUTPUT + */ +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/console.h> +#include <linux/fs.h> +#include <linux/delay.h> +#include <linux/platform_device.h> +#include <asm/cacheflush.h> +#include <asm/io.h> +#include <asm/semaphore.h> +#include <linux/dma-mapping.h> + +#include <mach/mxcfb.h> +#include <mach/ipu.h> + +#include "mxc_v4l2_output.h" + +vout_data *g_vout; +#define SDC_FG_FB_FORMAT IPU_PIX_FMT_RGB565 + +struct v4l2_output mxc_outputs[2] = { + { + .index = MXC_V4L2_OUT_2_SDC, + .name = "DISP3 Video Out", + .type = V4L2_OUTPUT_TYPE_ANALOG, /* not really correct, + but no other choice */ + .audioset = 0, + .modulator = 0, + .std = V4L2_STD_UNKNOWN}, + { + .index = MXC_V4L2_OUT_2_ADC, + .name = "DISPx Video Out", + .type = V4L2_OUTPUT_TYPE_ANALOG, /* not really correct, + but no other choice */ + .audioset = 0, + .modulator = 0, + .std = V4L2_STD_UNKNOWN} +}; + +static int video_nr = 16; +static DEFINE_SPINLOCK(g_lock); +static unsigned int g_pp_out_number; +static unsigned int g_pp_in_number; + +/* debug counters */ +uint32_t g_irq_cnt; +uint32_t g_buf_output_cnt; +uint32_t g_buf_q_cnt; +uint32_t g_buf_dq_cnt; + +static inline uint32_t channel_2_dma(ipu_channel_t ch, ipu_buffer_t type) +{ + return ((type == IPU_INPUT_BUFFER) ? ((uint32_t) ch & 0xFF) : + ((type == IPU_OUTPUT_BUFFER) ? (((uint32_t) ch >> 8) & 0xFF) + : (((uint32_t) ch >> 16) & 0xFF))); +}; + +static inline uint32_t DMAParamAddr(uint32_t dma_ch) +{ + return 0x10000 | (dma_ch << 4); +}; + +#define QUEUE_SIZE (MAX_FRAME_NUM + 1) +static inline int queue_size(v4l_queue *q) +{ + if (q->tail >= q->head) + return q->tail - q->head; + else + return (q->tail + QUEUE_SIZE) - q->head; +} + +static inline int queue_buf(v4l_queue *q, int idx) +{ + if (((q->tail + 1) % QUEUE_SIZE) == q->head) + return -1; /* queue full */ + q->list[q->tail] = idx; + q->tail = (q->tail + 1) % QUEUE_SIZE; + return 0; +} + +static inline int dequeue_buf(v4l_queue *q) +{ + int ret; + if (q->tail == q->head) + return -1; /* queue empty */ + ret = q->list[q->head]; + q->head = (q->head + 1) % QUEUE_SIZE; + return ret; +} + +static inline int peek_next_buf(v4l_queue *q) +{ + if (q->tail == q->head) + return -1; /* queue empty */ + return q->list[q->head]; +} + +static inline unsigned long get_jiffies(struct timeval *t) +{ + struct timeval cur; + + if (t->tv_usec >= 1000000) { + t->tv_sec += t->tv_usec / 1000000; + t->tv_usec = t->tv_usec % 1000000; + } + + do_gettimeofday(&cur); + if ((t->tv_sec < cur.tv_sec) + || ((t->tv_sec == cur.tv_sec) && (t->tv_usec < cur.tv_usec))) + return jiffies; + + if (t->tv_usec < cur.tv_usec) { + cur.tv_sec = t->tv_sec - cur.tv_sec - 1; + cur.tv_usec = t->tv_usec + 1000000 - cur.tv_usec; + } else { + cur.tv_sec = t->tv_sec - cur.tv_sec; + cur.tv_usec = t->tv_usec - cur.tv_usec; + } + + return jiffies + timeval_to_jiffies(&cur); +} + +/*! + * Private function to free buffers + * + * @param bufs_paddr Array of physical address of buffers to be freed + * + * @param bufs_vaddr Array of virtual address of buffers to be freed + * + * @param num_buf Number of buffers to be freed + * + * @param size Size for each buffer to be free + * + * @return status 0 success. + */ +static int mxc_free_buffers(dma_addr_t bufs_paddr[], void *bufs_vaddr[], + int num_buf, int size) +{ + int i; + + for (i = 0; i < num_buf; i++) { + if (bufs_vaddr[i] != 0) { + dma_free_coherent(0, size, bufs_vaddr[i], + bufs_paddr[i]); + pr_debug("freed @ paddr=0x%08X\n", (u32) bufs_paddr[i]); + bufs_paddr[i] = 0; + bufs_vaddr[i] = NULL; + } + } + return 0; +} + +/*! + * Private function to allocate buffers + * + * @param bufs_paddr Output array of physical address of buffers allocated + * + * @param bufs_vaddr Output array of virtual address of buffers allocated + * + * @param num_buf Input number of buffers to allocate + * + * @param size Input size for each buffer to allocate + * + * @return status -0 Successfully allocated a buffer, -ENOBUFS failed. + */ +static int mxc_allocate_buffers(dma_addr_t bufs_paddr[], void *bufs_vaddr[], + int num_buf, int size) +{ + int i; + + for (i = 0; i < num_buf; i++) { + bufs_vaddr[i] = dma_alloc_coherent(0, size, + &bufs_paddr[i], + GFP_DMA | GFP_KERNEL); + + if (bufs_vaddr[i] == 0) { + mxc_free_buffers(bufs_paddr, bufs_vaddr, i, size); + printk(KERN_ERR "dma_alloc_coherent failed.\n"); + return -ENOBUFS; + } + pr_debug("allocated @ paddr=0x%08X, size=%d.\n", + (u32) bufs_paddr[i], size); + } + + return 0; +} + +/* + * Returns bits per pixel for given pixel format + * + * @param pixelformat V4L2_PIX_FMT_RGB565, + * V4L2_PIX_FMT_BGR24 or V4L2_PIX_FMT_BGR32 + * + * @return bits per pixel of pixelformat + */ +static u32 fmt_to_bpp(u32 pixelformat) +{ + u32 bpp; + + switch (pixelformat) { + case V4L2_PIX_FMT_RGB565: + bpp = 16; + break; + case V4L2_PIX_FMT_BGR24: + case V4L2_PIX_FMT_RGB24: + bpp = 24; + break; + case V4L2_PIX_FMT_BGR32: + case V4L2_PIX_FMT_RGB32: + bpp = 32; + break; + default: + bpp = 8; + break; + } + return bpp; +} + +static u32 bpp_to_fmt(struct fb_info *fbi) +{ + if (fbi->var.nonstd) + return fbi->var.nonstd; + + if (fbi->var.bits_per_pixel == 24) + return V4L2_PIX_FMT_BGR24; + else if (fbi->var.bits_per_pixel == 32) + return V4L2_PIX_FMT_BGR32; + else if (fbi->var.bits_per_pixel == 16) + return V4L2_PIX_FMT_RGB565; + + return 0; +} + +static void mxc_v4l2out_timer_handler(unsigned long arg) +{ + int index; + unsigned long timeout; + unsigned long lock_flags = 0; + vout_data *vout = (vout_data *) arg; + + dev_dbg(vout->video_dev->dev, "timer handler: %lu\n", jiffies); + + spin_lock_irqsave(&g_lock, lock_flags); + + if ((vout->state == STATE_STREAM_STOPPING) + || (vout->state == STATE_STREAM_OFF)) + goto exit0; + /* + * If timer occurs before IPU h/w is ready, then set the state to + * paused and the timer will be set again when next buffer is queued + * or PP comletes + */ + if (vout->ipu_buf[0] != -1) { + dev_dbg(vout->video_dev->dev, "IPU buffer busy\n"); + vout->state = STATE_STREAM_PAUSED; + goto exit0; + } + + /* One frame buffer should be ready here */ + if (vout->frame_count % 2 == 1) { + /* set BUF0 rdy */ + if (ipu_select_buffer(vout->display_ch, IPU_INPUT_BUFFER, 0) < + 0) + pr_debug("error selecting display buf 0"); + } else { + if (ipu_select_buffer(vout->display_ch, IPU_INPUT_BUFFER, 1) < + 0) + pr_debug("error selecting display buf 1"); + } + + /* Dequeue buffer and pass to IPU */ + index = dequeue_buf(&vout->ready_q); + if (index == -1) { /* no buffers ready, should never occur */ + dev_err(vout->video_dev->dev, + "mxc_v4l2out: timer - no queued buffers ready\n"); + goto exit0; + } + + g_buf_dq_cnt++; + vout->frame_count++; + vout->ipu_buf[1] = vout->ipu_buf[0] = index; + + if (ipu_update_channel_buffer(vout->post_proc_ch, IPU_INPUT_BUFFER, + 0, + vout->v4l2_bufs[vout->ipu_buf[0]].m. + offset) < 0) + goto exit0; + + if (ipu_update_channel_buffer(vout->post_proc_ch, IPU_INPUT_BUFFER, + 1, + vout->v4l2_bufs[vout->ipu_buf[0]].m. + offset + vout->v2f.fmt.pix.width / 2) < 0) + goto exit0; + + /* All buffer should now ready in IPU out, tranfer to display buf */ + if (ipu_update_channel_buffer(vout->post_proc_ch, IPU_OUTPUT_BUFFER, + 0, + vout-> + display_bufs[(vout->frame_count - + 1) % 2]) < 0) { + dev_err(vout->video_dev->dev, + "unable to update buffer %d address\n", + vout->next_rdy_ipu_buf); + goto exit0; + } + if (ipu_update_channel_buffer(vout->post_proc_ch, IPU_OUTPUT_BUFFER, + 1, + vout-> + display_bufs[(vout->frame_count - + 1) % 2] + + vout->crop_current.width / 2 * + bytes_per_pixel(SDC_FG_FB_FORMAT)) < 0) { + dev_err(vout->video_dev->dev, + "unable to update buffer %d address\n", + vout->next_rdy_ipu_buf); + goto exit0; + } + + if (ipu_select_buffer(vout->post_proc_ch, IPU_INPUT_BUFFER, 0) < 0) { + dev_err(vout->video_dev->dev, + "unable to set IPU buffer ready\n"); + goto exit0; + } + + if (ipu_select_buffer(vout->post_proc_ch, IPU_OUTPUT_BUFFER, 0) < 0) { + dev_err(vout->video_dev->dev, + "unable to set IPU buffer ready\n"); + goto exit0; + } + + /* Setup timer for next buffer */ + index = peek_next_buf(&vout->ready_q); + if (index != -1) { + /* if timestamp is 0, then default to 30fps */ + if ((vout->v4l2_bufs[index].timestamp.tv_sec == 0) + && (vout->v4l2_bufs[index].timestamp.tv_usec == 0)) + timeout = + vout->start_jiffies + vout->frame_count * HZ / 30; + else + timeout = + get_jiffies(&vout->v4l2_bufs[index].timestamp); + + if (jiffies >= timeout) { + dev_dbg(vout->video_dev->dev, + "warning: timer timeout already expired.\n"); + } + if (mod_timer(&vout->output_timer, timeout)) + dev_dbg(vout->video_dev->dev, + "warning: timer was already set\n"); + + dev_dbg(vout->video_dev->dev, + "timer handler next schedule: %lu\n", timeout); + } else { + vout->state = STATE_STREAM_PAUSED; + } + +exit0: + spin_unlock_irqrestore(&g_lock, lock_flags); +} + +extern void _ipu_write_param_mem(uint32_t addr, uint32_t *data, + uint32_t numWords); + +static irqreturn_t mxc_v4l2out_pp_in_irq_handler(int irq, void *dev_id) +{ + unsigned long lock_flags = 0; + vout_data *vout = dev_id; + uint32_t u_offset; + uint32_t v_offset; + uint32_t local_params[4]; + uint32_t width, height; + uint32_t dma_chan; + + spin_lock_irqsave(&g_lock, lock_flags); + g_irq_cnt++; + + dma_chan = channel_2_dma(vout->post_proc_ch, IPU_INPUT_BUFFER); + memset(&local_params, 0, sizeof(local_params)); + + if (g_pp_in_number % 2 == 1) { + u_offset = vout->offset.u_offset - vout->v2f.fmt.pix.width / 4; + v_offset = vout->offset.v_offset - vout->v2f.fmt.pix.width / 4; + width = vout->v2f.fmt.pix.width / 2; + height = vout->v2f.fmt.pix.height; + local_params[3] = + (uint32_t) ((width - 1) << 12) | ((uint32_t) (height - + 1) << 24); + local_params[1] = (1UL << (46 - 32)) | (u_offset << (53 - 32)); + local_params[2] = u_offset >> (64 - 53); + local_params[2] |= v_offset << (79 - 64); + local_params[3] |= v_offset >> (96 - 79); + _ipu_write_param_mem(DMAParamAddr(dma_chan), local_params, 4); + + if (ipu_select_buffer(vout->post_proc_ch, IPU_INPUT_BUFFER, 1) < + 0) { + dev_err(vout->video_dev->dev, + "unable to set IPU buffer ready\n"); + } + } else { + u_offset = vout->offset.u_offset; + v_offset = vout->offset.v_offset; + width = vout->v2f.fmt.pix.width / 2; + height = vout->v2f.fmt.pix.height; + local_params[3] = + (uint32_t) ((width - 1) << 12) | ((uint32_t) (height - + 1) << 24); + local_params[1] = (1UL << (46 - 32)) | (u_offset << (53 - 32)); + local_params[2] = u_offset >> (64 - 53); + local_params[2] |= v_offset << (79 - 64); + local_params[3] |= v_offset >> (96 - 79); + _ipu_write_param_mem(DMAParamAddr(dma_chan), local_params, 4); + } + g_pp_in_number++; + + spin_unlock_irqrestore(&g_lock, lock_flags); + + return IRQ_HANDLED; +} + +static irqreturn_t mxc_v4l2out_pp_out_irq_handler(int irq, void *dev_id) +{ + vout_data *vout = dev_id; + int index; + unsigned long timeout; + u32 lock_flags = 0; + + spin_lock_irqsave(&g_lock, lock_flags); + + if (g_pp_out_number % 2 == 1) { + if (ipu_select_buffer(vout->post_proc_ch, IPU_OUTPUT_BUFFER, 1) + < 0) { + dev_err(vout->video_dev->dev, + "unable to set IPU buffer ready\n"); + } + } else { + if (vout->ipu_buf[0] != -1) { + vout->v4l2_bufs[vout->ipu_buf[0]].flags = + V4L2_BUF_FLAG_DONE; + queue_buf(&vout->done_q, vout->ipu_buf[0]); + wake_up_interruptible(&vout->v4l_bufq); + vout->ipu_buf[0] = -1; + } + index = peek_next_buf(&vout->ready_q); + if (vout->state == STATE_STREAM_STOPPING) { + if ((vout->ipu_buf[0] == -1) + && (vout->ipu_buf[1] == -1)) + vout->state = STATE_STREAM_OFF; + } else if ((vout->state == STATE_STREAM_PAUSED) + && (index != -1)) { + /*! + * Setup timer for next buffer, + * when stream has been paused + */ + pr_debug("next index %d\n", index); + + /* if timestamp is 0, then default to 30fps */ + if ((vout->v4l2_bufs[index].timestamp.tv_sec == 0) + && (vout->v4l2_bufs[index].timestamp.tv_usec == 0)) + timeout = + vout->start_jiffies + + vout->frame_count * HZ / 30; + else + timeout = + get_jiffies(&vout->v4l2_bufs[index]. + timestamp); + + if (jiffies >= timeout) { + pr_debug + ("warning: timer timeout" + "already expired.\n"); + } + + vout->state = STATE_STREAM_ON; + + if (mod_timer(&vout->output_timer, timeout)) + pr_debug("warning: timer was already set\n"); + + pr_debug("timer handler next schedule: %lu\n", timeout); + } + } + g_pp_out_number++; + + spin_unlock_irqrestore(&g_lock, lock_flags); + return IRQ_HANDLED; +} + +/*! + * Start the output stream + * + * @param vout structure vout_data * + * + * @return status 0 Success + */ +static int mxc_v4l2out_streamon(vout_data *vout) +{ + struct device *dev = vout->video_dev->dev; + ipu_channel_params_t params; + struct mxcfb_pos fb_pos; + struct fb_var_screeninfo fbvar; + struct fb_info *fbi = + registered_fb[vout->output_fb_num[vout->cur_disp_output]]; + int pp_in_buf[2]; + u16 out_width; + u16 out_height; + ipu_channel_t display_input_ch = MEM_PP_MEM; + bool use_direct_adc = false; + mm_segment_t old_fs; + + if (!vout) + return -EINVAL; + + if (vout->state != STATE_STREAM_OFF) + return -EBUSY; + + if (queue_size(&vout->ready_q) < 2) { + dev_err(dev, "2 buffers not been queued yet!\n"); + return -EINVAL; + } + + out_width = vout->crop_current.width; + out_height = vout->crop_current.height; + + vout->next_done_ipu_buf = vout->next_rdy_ipu_buf = 0; + vout->ipu_buf[0] = pp_in_buf[0] = dequeue_buf(&vout->ready_q); + vout->ipu_buf[1] = pp_in_buf[1] = vout->ipu_buf[0]; + vout->frame_count = 1; + g_pp_out_number = 1; + g_pp_in_number = 1; + + ipu_enable_irq(IPU_IRQ_PP_IN_EOF); + ipu_enable_irq(IPU_IRQ_PP_OUT_EOF); + + /* Init Display Channel */ +#ifdef CONFIG_FB_MXC_ASYNC_PANEL + if (vout->cur_disp_output < DISP3) { + mxcfb_set_refresh_mode(fbi, MXCFB_REFRESH_OFF, 0); + fbi = NULL; + if (ipu_can_rotate_in_place(vout->rotate)) { + dev_dbg(dev, "Using PP direct to ADC channel\n"); + use_direct_adc = true; + vout->display_ch = MEM_PP_ADC; + vout->post_proc_ch = MEM_PP_ADC; + + memset(¶ms, 0, sizeof(params)); + params.mem_pp_adc.in_width = vout->v2f.fmt.pix.width; + params.mem_pp_adc.in_height = vout->v2f.fmt.pix.height; + params.mem_pp_adc.in_pixel_fmt = + vout->v2f.fmt.pix.pixelformat; + params.mem_pp_adc.out_width = out_width; + params.mem_pp_adc.out_height = out_height; + params.mem_pp_adc.out_pixel_fmt = SDC_FG_FB_FORMAT; +#ifdef CONFIG_FB_MXC_EPSON_PANEL + params.mem_pp_adc.out_left = + 2 + vout->crop_current.left; +#else + params.mem_pp_adc.out_left = + 12 + vout->crop_current.left; +#endif + params.mem_pp_adc.out_top = vout->crop_current.top; + if (ipu_init_channel( + vout->post_proc_ch, ¶ms) != 0) { + dev_err(dev, "Error initializing PP chan\n"); + return -EINVAL; + } + + if (ipu_init_channel_buffer(vout->post_proc_ch, + IPU_INPUT_BUFFER, + params.mem_pp_adc. + in_pixel_fmt, + params.mem_pp_adc.in_width, + params.mem_pp_adc.in_height, + vout->v2f.fmt.pix. + bytesperline / + bytes_per_pixel(params. + mem_pp_adc. + in_pixel_fmt), + vout->rotate, + vout-> + v4l2_bufs[pp_in_buf[0]].m. + offset, + vout-> + v4l2_bufs[pp_in_buf[1]].m. + offset, + vout->offset.u_offset, + vout->offset.v_offset) != + 0) { + dev_err(dev, "Error initializing PP in buf\n"); + return -EINVAL; + } + + if (ipu_init_channel_buffer(vout->post_proc_ch, + IPU_OUTPUT_BUFFER, + params.mem_pp_adc. + out_pixel_fmt, out_width, + out_height, out_width, + vout->rotate, 0, 0, 0, + 0) != 0) { + dev_err(dev, + "Error initializing PP" + "output buffer\n"); + return -EINVAL; + } + + } else { + dev_dbg(dev, "Using ADC SYS2 channel\n"); + vout->display_ch = ADC_SYS2; + vout->post_proc_ch = MEM_PP_MEM; + + if (vout->display_bufs[0]) { + mxc_free_buffers(vout->display_bufs, + vout->display_bufs_vaddr, + 2, vout->display_buf_size); + } + + vout->display_buf_size = vout->crop_current.width * + vout->crop_current.height * + fmt_to_bpp(SDC_FG_FB_FORMAT) / 8; + mxc_allocate_buffers(vout->display_bufs, + vout->display_bufs_vaddr, + 2, vout->display_buf_size); + + memset(¶ms, 0, sizeof(params)); + params.adc_sys2.disp = vout->cur_disp_output; + params.adc_sys2.ch_mode = WriteTemplateNonSeq; +#ifdef CONFIG_FB_MXC_EPSON_PANEL + params.adc_sys2.out_left = 2 + vout->crop_current.left; +#else + params.adc_sys2.out_left = 12 + vout->crop_current.left; +#endif + params.adc_sys2.out_top = vout->crop_current.top; + if (ipu_init_channel(ADC_SYS2, ¶ms) < 0) + return -EINVAL; + + if (ipu_init_channel_buffer(vout->display_ch, + IPU_INPUT_BUFFER, + SDC_FG_FB_FORMAT, + out_width, out_height, + out_width, IPU_ROTATE_NONE, + vout->display_bufs[0], + vout->display_bufs[1], 0, + 0) != 0) { + dev_err(dev, + "Error initializing SDC FG buffer\n"); + return -EINVAL; + } + } + } else +#endif + { /* Use SDC */ + dev_dbg(dev, "Using SDC channel\n"); + + fbvar = fbi->var; + if (vout->cur_disp_output == 3) { + vout->display_ch = MEM_FG_SYNC; + fbvar.bits_per_pixel = 16; + fbvar.nonstd = IPU_PIX_FMT_UYVY; + + fbvar.xres = fbvar.xres_virtual = out_width; + fbvar.yres = out_height; + fbvar.yres_virtual = out_height * 2; + } else if (vout->cur_disp_output == 5) { + vout->display_ch = MEM_DC_SYNC; + fbvar.bits_per_pixel = 16; + fbvar.nonstd = IPU_PIX_FMT_UYVY; + + fbvar.xres = fbvar.xres_virtual = out_width; + fbvar.yres = out_height; + fbvar.yres_virtual = out_height * 2; + } else { + vout->display_ch = MEM_BG_SYNC; + } + + fbvar.activate |= FB_ACTIVATE_FORCE; + fb_set_var(fbi, &fbvar); + + fb_pos.x = vout->crop_current.left; + fb_pos.y = vout->crop_current.top; + if (fbi->fbops->fb_ioctl) { + old_fs = get_fs(); + set_fs(KERNEL_DS); + fbi->fbops->fb_ioctl(fbi, MXCFB_SET_OVERLAY_POS, + (unsigned long)&fb_pos); + set_fs(old_fs); + } + + vout->display_bufs[1] = fbi->fix.smem_start; + vout->display_bufs[0] = fbi->fix.smem_start + + (fbi->fix.line_length * fbi->var.yres); + vout->display_buf_size = vout->crop_current.width * + vout->crop_current.height * fbi->var.bits_per_pixel / 8; + + vout->post_proc_ch = MEM_PP_MEM; + } + + /* Init PP */ + if (use_direct_adc == false) { + if (vout->rotate >= IPU_ROTATE_90_RIGHT) { + out_width = vout->crop_current.height; + out_height = vout->crop_current.width; + } + memset(¶ms, 0, sizeof(params)); + params.mem_pp_mem.in_width = vout->v2f.fmt.pix.width / 2; + params.mem_pp_mem.in_height = vout->v2f.fmt.pix.height; + params.mem_pp_mem.in_pixel_fmt = vout->v2f.fmt.pix.pixelformat; + params.mem_pp_mem.out_width = out_width / 2; + params.mem_pp_mem.out_height = out_height; + if (vout->display_ch == ADC_SYS2) + params.mem_pp_mem.out_pixel_fmt = SDC_FG_FB_FORMAT; + else + params.mem_pp_mem.out_pixel_fmt = bpp_to_fmt(fbi); + if (ipu_init_channel(vout->post_proc_ch, ¶ms) != 0) { + dev_err(dev, "Error initializing PP channel\n"); + return -EINVAL; + } + + if (ipu_init_channel_buffer(vout->post_proc_ch, + IPU_INPUT_BUFFER, + params.mem_pp_mem.in_pixel_fmt, + params.mem_pp_mem.in_width, + params.mem_pp_mem.in_height, + vout->v2f.fmt.pix.bytesperline / + bytes_per_pixel(params.mem_pp_mem. + in_pixel_fmt), + IPU_ROTATE_NONE, + vout->v4l2_bufs[pp_in_buf[0]].m. + offset, + vout->v4l2_bufs[pp_in_buf[0]].m. + offset + params.mem_pp_mem.in_width, + vout->offset.u_offset, + vout->offset.v_offset) != 0) { + dev_err(dev, "Error initializing PP input buffer\n"); + return -EINVAL; + } + + if (!ipu_can_rotate_in_place(vout->rotate)) { + if (vout->rot_pp_bufs[0]) { + mxc_free_buffers(vout->rot_pp_bufs, + vout->rot_pp_bufs_vaddr, 2, + vout->display_buf_size); + } + if (mxc_allocate_buffers + (vout->rot_pp_bufs, vout->rot_pp_bufs_vaddr, 2, + vout->display_buf_size) < 0) + return -ENOBUFS; + + if (ipu_init_channel_buffer(vout->post_proc_ch, + IPU_OUTPUT_BUFFER, + params.mem_pp_mem. + out_pixel_fmt, out_width, + out_height, out_width, + IPU_ROTATE_NONE, + vout->rot_pp_bufs[0], + vout->rot_pp_bufs[1], 0, + 0) != 0) { + dev_err(dev, + "Error initializing" + "PP output buffer\n"); + return -EINVAL; + } + + if (ipu_init_channel(MEM_ROT_PP_MEM, NULL) != 0) { + dev_err(dev, + "Error initializing PP ROT channel\n"); + return -EINVAL; + } + + if (ipu_init_channel_buffer(MEM_ROT_PP_MEM, + IPU_INPUT_BUFFER, + params.mem_pp_mem. + out_pixel_fmt, out_width, + out_height, out_width, + vout->rotate, + vout->rot_pp_bufs[0], + vout->rot_pp_bufs[1], 0, + 0) != 0) { + dev_err(dev, + "Error initializing PP ROT" + "input buffer\n"); + return -EINVAL; + } + + /* swap width and height */ + if (vout->rotate >= IPU_ROTATE_90_RIGHT) { + out_width = vout->crop_current.width; + out_height = vout->crop_current.height; + } + + if (ipu_init_channel_buffer(MEM_ROT_PP_MEM, + IPU_OUTPUT_BUFFER, + params.mem_pp_mem. + out_pixel_fmt, out_width, + out_height, out_width, + IPU_ROTATE_NONE, + vout->display_bufs[0], + vout->display_bufs[1], 0, + 0) != 0) { + dev_err(dev, + "Error initializing PP" + "output buffer\n"); + return -EINVAL; + } + + if (ipu_link_channels(vout->post_proc_ch, + MEM_ROT_PP_MEM) < 0) + return -EINVAL; + + ipu_select_buffer(MEM_ROT_PP_MEM, IPU_OUTPUT_BUFFER, 0); + ipu_select_buffer(MEM_ROT_PP_MEM, IPU_OUTPUT_BUFFER, 1); + + ipu_enable_channel(MEM_ROT_PP_MEM); + + display_input_ch = MEM_ROT_PP_MEM; + } else { + if (ipu_init_channel_buffer(vout->post_proc_ch, + IPU_OUTPUT_BUFFER, + params.mem_pp_mem. + out_pixel_fmt, + out_width / 2, + out_height, + out_width, + vout->rotate, + vout->display_bufs[0], + vout->display_bufs[0] + + + out_width / 2 * + bytes_per_pixel + (SDC_FG_FB_FORMAT), 0, + 0) != 0) { + dev_err(dev, + "Error initializing PP" + "output buffer\n"); + return -EINVAL; + } + } + if (ipu_unlink_channels( + display_input_ch, vout->display_ch) < 0) { + dev_err(dev, "Error linking ipu channels\n"); + return -EINVAL; + } + } + + vout->state = STATE_STREAM_PAUSED; + + ipu_select_buffer(vout->post_proc_ch, IPU_INPUT_BUFFER, 0); + + if (use_direct_adc == false) { + ipu_select_buffer(vout->post_proc_ch, IPU_OUTPUT_BUFFER, 0); + ipu_enable_channel(vout->post_proc_ch); + + if (fbi) { + acquire_console_sem(); + fb_blank(fbi, FB_BLANK_UNBLANK); + release_console_sem(); + } else { + ipu_enable_channel(vout->display_ch); + } + } else { + ipu_enable_channel(vout->post_proc_ch); + } + + vout->start_jiffies = jiffies; + dev_dbg(dev, + "streamon: start time = %lu jiffies\n", vout->start_jiffies); + + return 0; +} + +/*! + * Shut down the voutera + * + * @param vout structure vout_data * + * + * @return status 0 Success + */ +static int mxc_v4l2out_streamoff(vout_data *vout) +{ + struct fb_info *fbi = + registered_fb[vout->output_fb_num[vout->cur_disp_output]]; + int i, retval = 0; + unsigned long lockflag = 0; + + if (!vout) + return -EINVAL; + + if (vout->state == STATE_STREAM_OFF) + return 0; + + spin_lock_irqsave(&g_lock, lockflag); + + del_timer(&vout->output_timer); + + if (vout->state == STATE_STREAM_ON) + vout->state = STATE_STREAM_STOPPING; + + ipu_disable_irq(IPU_IRQ_PP_IN_EOF); + ipu_disable_irq(IPU_IRQ_PP_OUT_EOF); + + spin_unlock_irqrestore(&g_lock, lockflag); + + if (vout->post_proc_ch == MEM_PP_MEM) { /* SDC or ADC with Rotation */ + if (!ipu_can_rotate_in_place(vout->rotate)) { + ipu_unlink_channels(MEM_PP_MEM, MEM_ROT_PP_MEM); + ipu_unlink_channels(MEM_ROT_PP_MEM, vout->display_ch); + ipu_disable_channel(MEM_ROT_PP_MEM, true); + + if (vout->rot_pp_bufs[0]) { + mxc_free_buffers(vout->rot_pp_bufs, + vout->rot_pp_bufs_vaddr, 2, + vout->display_buf_size); + } + } else { + ipu_unlink_channels(MEM_PP_MEM, vout->display_ch); + } + ipu_disable_channel(MEM_PP_MEM, true); + + if (vout->display_ch == ADC_SYS2) { + ipu_disable_channel(vout->display_ch, true); + ipu_uninit_channel(vout->display_ch); + } else { + fbi->var.activate |= FB_ACTIVATE_FORCE; + fb_set_var(fbi, &fbi->var); + + if (vout->display_ch == MEM_FG_SYNC) { + acquire_console_sem(); + fb_blank(fbi, FB_BLANK_POWERDOWN); + release_console_sem(); + } + + vout->display_bufs[0] = 0; + vout->display_bufs[1] = 0; + } + + ipu_uninit_channel(MEM_PP_MEM); + if (!ipu_can_rotate_in_place(vout->rotate)) + ipu_uninit_channel(MEM_ROT_PP_MEM); + } else { /* ADC Direct */ + ipu_disable_channel(MEM_PP_ADC, true); + ipu_uninit_channel(MEM_PP_ADC); + } + vout->ready_q.head = vout->ready_q.tail = 0; + vout->done_q.head = vout->done_q.tail = 0; + for (i = 0; i < vout->buffer_cnt; i++) { + vout->v4l2_bufs[i].flags = 0; + vout->v4l2_bufs[i].timestamp.tv_sec = 0; + vout->v4l2_bufs[i].timestamp.tv_usec = 0; + } + + vout->state = STATE_STREAM_OFF; + +#ifdef CONFIG_FB_MXC_ASYNC_PANEL + if (vout->cur_disp_output < DISP3) { + if (vout->display_bufs[0] != 0) { + mxc_free_buffers(vout->display_bufs, + vout->display_bufs_vaddr, 2, + vout->display_buf_size); + } + + mxcfb_set_refresh_mode(registered_fb + [vout-> + output_fb_num[vout->cur_disp_output]], + MXCFB_REFRESH_PARTIAL, 0); + } +#endif + + return retval; +} + +/* + * Valid whether the palette is supported + * + * @param palette V4L2_PIX_FMT_RGB565, V4L2_PIX_FMT_BGR24 or V4L2_PIX_FMT_BGR32 + * + * @return 1 if supported, 0 if failed + */ +static inline int valid_mode(u32 palette) +{ + return ((palette == V4L2_PIX_FMT_RGB565) || + (palette == V4L2_PIX_FMT_BGR24) || + (palette == V4L2_PIX_FMT_RGB24) || + (palette == V4L2_PIX_FMT_BGR32) || + (palette == V4L2_PIX_FMT_RGB32) || + (palette == V4L2_PIX_FMT_NV12) || + (palette == V4L2_PIX_FMT_YUV422P) || + (palette == V4L2_PIX_FMT_YUV420)); +} + +/* + * V4L2 - Handles VIDIOC_G_FMT Ioctl + * + * @param vout structure vout_data * + * + * @param v4l2_format structure v4l2_format * + * + * @return status 0 success, EINVAL failed + */ +static int mxc_v4l2out_g_fmt(vout_data *vout, struct v4l2_format *f) +{ + if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + *f = vout->v2f; + return 0; +} + +/* + * V4L2 - Handles VIDIOC_S_FMT Ioctl + * + * @param vout structure vout_data * + * + * @param v4l2_format structure v4l2_format * + * + * @return status 0 success, EINVAL failed + */ +static int mxc_v4l2out_s_fmt(vout_data *vout, struct v4l2_format *f) +{ + int retval = 0; + u32 size = 0; + u32 bytesperline; + + if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { + retval = -EINVAL; + goto err0; + } + if (!valid_mode(f->fmt.pix.pixelformat)) { + dev_err(vout->video_dev->dev, "pixel format not supported\n"); + retval = -EINVAL; + goto err0; + } + + bytesperline = (f->fmt.pix.width * fmt_to_bpp(f->fmt.pix.pixelformat)) / + 8; + if (f->fmt.pix.bytesperline < bytesperline) { + f->fmt.pix.bytesperline = bytesperline; + } else { + bytesperline = f->fmt.pix.bytesperline; + } + + switch (f->fmt.pix.pixelformat) { + case V4L2_PIX_FMT_YUV422P: + /* byteperline for YUV planar formats is for + Y plane only */ + size = bytesperline * f->fmt.pix.height * 2; + break; + case V4L2_PIX_FMT_YUV420: + case V4L2_PIX_FMT_NV12: + size = (bytesperline * f->fmt.pix.height * 3) / 2; + break; + default: + size = bytesperline * f->fmt.pix.height; + break; + } + + /* Return the actual size of the image to the app */ + if (f->fmt.pix.sizeimage < size) + f->fmt.pix.sizeimage = size; + else + size = f->fmt.pix.sizeimage; + + vout->v2f.fmt.pix = f->fmt.pix; + if (vout->v2f.fmt.pix.priv != 0) { + if (copy_from_user(&vout->offset, + (void *)vout->v2f.fmt.pix.priv, + sizeof(vout->offset))) { + retval = -EFAULT; + goto err0; + } + } else { + vout->offset.u_offset = 0; + vout->offset.v_offset = 0; + } + + retval = 0; +err0: + return retval; +} + +/* + * V4L2 - Handles VIDIOC_G_CTRL Ioctl + * + * @param vout structure vout_data * + * + * @param c structure v4l2_control * + * + * @return status 0 success, EINVAL failed + */ +static int mxc_get_v42lout_control(vout_data *vout, struct v4l2_control *c) +{ + switch (c->id) { + case V4L2_CID_HFLIP: + return (vout->rotate & IPU_ROTATE_HORIZ_FLIP) ? 1 : 0; + case V4L2_CID_VFLIP: + return (vout->rotate & IPU_ROTATE_VERT_FLIP) ? 1 : 0; + case (V4L2_CID_PRIVATE_BASE + 1): + return vout->rotate; + default: + return -EINVAL; + } +} + +/* + * V4L2 - Handles VIDIOC_S_CTRL Ioctl + * + * @param vout structure vout_data * + * + * @param c structure v4l2_control * + * + * @return status 0 success, EINVAL failed + */ +static int mxc_set_v42lout_control(vout_data *vout, struct v4l2_control *c) +{ + switch (c->id) { + case V4L2_CID_HFLIP: + vout->rotate |= c->value ? IPU_ROTATE_HORIZ_FLIP : + IPU_ROTATE_NONE; + break; + case V4L2_CID_VFLIP: + vout->rotate |= c->value ? IPU_ROTATE_VERT_FLIP : + IPU_ROTATE_NONE; + break; + case V4L2_CID_MXC_ROT: + vout->rotate = c->value; + break; + default: + return -EINVAL; + } + return 0; +} + +/*! + * V4L2 interface - open function + * + * @param inode structure inode * + * + * @param file structure file * + * + * @return status 0 success, ENODEV invalid device instance, + * ENODEV timeout, ERESTARTSYS interrupted by user + */ +static int mxc_v4l2out_open(struct inode *inode, struct file *file) +{ + struct video_device *dev = video_devdata(file); + vout_data *vout = video_get_drvdata(dev); + int err; + + if (!vout) + return -ENODEV; + + down(&vout->busy_lock); + + err = -EINTR; + if (signal_pending(current)) + goto oops; + + if (vout->open_count++ == 0) { + ipu_request_irq(IPU_IRQ_PP_IN_EOF, + mxc_v4l2out_pp_in_irq_handler, + 0, dev->name, vout); + ipu_request_irq(IPU_IRQ_PP_OUT_EOF, + mxc_v4l2out_pp_out_irq_handler, + 0, dev->name, vout); + + init_waitqueue_head(&vout->v4l_bufq); + + init_timer(&vout->output_timer); + vout->output_timer.function = mxc_v4l2out_timer_handler; + vout->output_timer.data = (unsigned long)vout; + + vout->state = STATE_STREAM_OFF; + vout->rotate = IPU_ROTATE_NONE; + g_irq_cnt = g_buf_output_cnt = g_buf_q_cnt = g_buf_dq_cnt = 0; + + } + + file->private_data = dev; + + up(&vout->busy_lock); + + return 0; + +oops: + up(&vout->busy_lock); + return err; +} + +/*! + * V4L2 interface - close function + * + * @param inode struct inode * + * + * @param file struct file * + * + * @return 0 success + */ +static int mxc_v4l2out_close(struct inode *inode, struct file *file) +{ + struct video_device *dev = video_devdata(file); + vout_data *vout = video_get_drvdata(dev); + + if (--vout->open_count == 0) { + if (vout->state != STATE_STREAM_OFF) + mxc_v4l2out_streamoff(vout); + + ipu_free_irq(IPU_IRQ_PP_IN_EOF, vout); + ipu_free_irq(IPU_IRQ_PP_OUT_EOF, vout); + + file->private_data = NULL; + + mxc_free_buffers(vout->queue_buf_paddr, vout->queue_buf_vaddr, + vout->buffer_cnt, vout->queue_buf_size); + vout->buffer_cnt = 0; + mxc_free_buffers(vout->rot_pp_bufs, vout->rot_pp_bufs_vaddr, 2, + vout->display_buf_size); + + /* capture off */ + wake_up_interruptible(&vout->v4l_bufq); + } + + return 0; +} + +/*! + * V4L2 interface - ioctl function + * + * @param inode struct inode * + * + * @param file struct file * + * + * @param ioctlnr unsigned int + * + * @param arg void * + * + * @return 0 success, ENODEV for invalid device instance, + * -1 for other errors. + */ +static int +mxc_v4l2out_do_ioctl(struct inode *inode, struct file *file, + unsigned int ioctlnr, void *arg) +{ + struct video_device *vdev = file->private_data; + vout_data *vout = video_get_drvdata(vdev); + int retval = 0; + int i = 0; + + if (!vout) + return -EBADF; + + /* make this _really_ smp-safe */ + if (down_interruptible(&vout->busy_lock)) + return -EBUSY; + + switch (ioctlnr) { + case VIDIOC_QUERYCAP: + { + struct v4l2_capability *cap = arg; + strcpy(cap->driver, "mxc_v4l2_output"); + cap->version = 0; + cap->capabilities = + V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; + cap->card[0] = '\0'; + cap->bus_info[0] = '\0'; + retval = 0; + break; + } + case VIDIOC_G_FMT: + { + struct v4l2_format *gf = arg; + retval = mxc_v4l2out_g_fmt(vout, gf); + break; + } + case VIDIOC_S_FMT: + { + struct v4l2_format *sf = arg; + if (vout->state != STATE_STREAM_OFF) { + retval = -EBUSY; + break; + } + retval = mxc_v4l2out_s_fmt(vout, sf); + break; + } + case VIDIOC_REQBUFS: + { + struct v4l2_requestbuffers *req = arg; + if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || + (req->memory != V4L2_MEMORY_MMAP)) { + dev_dbg(vdev->dev, + "VIDIOC_REQBUFS: incorrect" + "buffer type\n"); + retval = -EINVAL; + break; + } + + if (req->count == 0) + mxc_v4l2out_streamoff(vout); + + if (vout->state == STATE_STREAM_OFF) { + if (vout->queue_buf_paddr[0] != 0) { + mxc_free_buffers(vout->queue_buf_paddr, + vout->queue_buf_vaddr, + vout->buffer_cnt, + vout->queue_buf_size); + dev_dbg(vdev->dev, + "VIDIOC_REQBUFS:" + "freed buffers\n"); + } + vout->buffer_cnt = 0; + } else { + dev_dbg(vdev->dev, + "VIDIOC_REQBUFS: Buffer is in use\n"); + retval = -EBUSY; + break; + } + + if (req->count == 0) + break; + + if (req->count < MIN_FRAME_NUM) + req->count = MIN_FRAME_NUM; + else if (req->count > MAX_FRAME_NUM) + req->count = MAX_FRAME_NUM; + vout->buffer_cnt = req->count; + vout->queue_buf_size = + PAGE_ALIGN(vout->v2f.fmt.pix.sizeimage); + + retval = mxc_allocate_buffers(vout->queue_buf_paddr, + vout->queue_buf_vaddr, + vout->buffer_cnt, + vout->queue_buf_size); + if (retval < 0) + break; + + /* Init buffer queues */ + vout->done_q.head = 0; + vout->done_q.tail = 0; + vout->ready_q.head = 0; + vout->ready_q.tail = 0; + + for (i = 0; i < vout->buffer_cnt; i++) { + memset(&(vout->v4l2_bufs[i]), 0, + sizeof(vout->v4l2_bufs[i])); + vout->v4l2_bufs[i].flags = 0; + vout->v4l2_bufs[i].memory = V4L2_MEMORY_MMAP; + vout->v4l2_bufs[i].index = i; + vout->v4l2_bufs[i].type = + V4L2_BUF_TYPE_VIDEO_OUTPUT; + vout->v4l2_bufs[i].length = + PAGE_ALIGN(vout->v2f.fmt.pix.sizeimage); + vout->v4l2_bufs[i].m.offset = + (unsigned long)vout->queue_buf_paddr[i]; + vout->v4l2_bufs[i].timestamp.tv_sec = 0; + vout->v4l2_bufs[i].timestamp.tv_usec = 0; + } + break; + } + case VIDIOC_QUERYBUF: + { + struct v4l2_buffer *buf = arg; + u32 type = buf->type; + int index = buf->index; + + if ((type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || + (index >= vout->buffer_cnt)) { + dev_dbg(vdev->dev, + "VIDIOC_QUERYBUFS: incorrect" + "buffer type\n"); + retval = -EINVAL; + break; + } + down(&vout->param_lock); + memcpy(buf, &(vout->v4l2_bufs[index]), sizeof(*buf)); + up(&vout->param_lock); + break; + } + case VIDIOC_QBUF: + { + struct v4l2_buffer *buf = arg; + int index = buf->index; + unsigned long lock_flags; + + if ((buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || + (index >= vout->buffer_cnt)) { + retval = -EINVAL; + break; + } + + dev_dbg(vdev->dev, "VIDIOC_QBUF: %d\n", buf->index); + + /* mmapped buffers are L1 WB cached, + * so we need to clean them */ + if (buf->flags & V4L2_BUF_FLAG_MAPPED) + flush_cache_all(); + + spin_lock_irqsave(&g_lock, lock_flags); + + memcpy(&(vout->v4l2_bufs[index]), buf, sizeof(*buf)); + vout->v4l2_bufs[index].flags |= V4L2_BUF_FLAG_QUEUED; + + g_buf_q_cnt++; + queue_buf(&vout->ready_q, index); + if (vout->state == STATE_STREAM_PAUSED) { + unsigned long timeout; + + index = peek_next_buf(&vout->ready_q); + + /* if timestamp is 0, then default to 30fps */ + if ((vout->v4l2_bufs[index].timestamp.tv_sec == + 0) + && (vout->v4l2_bufs[index].timestamp. + tv_usec == 0)) + timeout = + vout->start_jiffies + + vout->frame_count * HZ / 30; + else + timeout = + get_jiffies(&vout->v4l2_bufs[index]. + timestamp); + + if (jiffies >= timeout) { + dev_dbg(vout->video_dev->dev, + "warning: timer timeout" + "already expired.\n"); + } + vout->output_timer.expires = timeout; + dev_dbg(vdev->dev, + "QBUF: frame #%u timeout @" + " %lu jiffies, current = %lu\n", + vout->frame_count, timeout, jiffies); + add_timer(&vout->output_timer); + vout->state = STATE_STREAM_ON; + } + + spin_unlock_irqrestore(&g_lock, lock_flags); + break; + } + case VIDIOC_DQBUF: + { + struct v4l2_buffer *buf = arg; + int idx; + + if ((queue_size(&vout->done_q) == 0) && + (file->f_flags & O_NONBLOCK)) { + retval = -EAGAIN; + break; + } + + if (!wait_event_interruptible_timeout(vout->v4l_bufq, + queue_size(&vout-> + done_q) + != 0, 10 * HZ)) { + dev_dbg(vdev->dev, "VIDIOC_DQBUF: timeout\n"); + retval = -ETIME; + break; + } else if (signal_pending(current)) { + dev_dbg(vdev->dev, + "VIDIOC_DQBUF: interrupt received\n"); + retval = -ERESTARTSYS; + break; + } + idx = dequeue_buf(&vout->done_q); + if (idx == -1) { /* No frame free */ + dev_dbg(vdev->dev, + "VIDIOC_DQBUF: no free buffers\n"); + retval = -EAGAIN; + break; + } + if ((vout->v4l2_bufs[idx].flags & V4L2_BUF_FLAG_DONE) == + 0) + dev_dbg(vdev->dev, + "VIDIOC_DQBUF: buffer in done q, " + "but not flagged as done\n"); + + vout->v4l2_bufs[idx].flags = 0; + memcpy(buf, &(vout->v4l2_bufs[idx]), sizeof(*buf)); + dev_dbg(vdev->dev, "VIDIOC_DQBUF: %d\n", buf->index); + break; + } + case VIDIOC_STREAMON: + { + retval = mxc_v4l2out_streamon(vout); + break; + } + case VIDIOC_STREAMOFF: + { + retval = mxc_v4l2out_streamoff(vout); + break; + } + case VIDIOC_G_CTRL: + { + retval = mxc_get_v42lout_control(vout, arg); + break; + } + case VIDIOC_S_CTRL: + { + retval = mxc_set_v42lout_control(vout, arg); + break; + } + case VIDIOC_CROPCAP: + { + struct v4l2_cropcap *cap = arg; + + if (cap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { + retval = -EINVAL; + break; + } + + cap->bounds = vout->crop_bounds[vout->cur_disp_output]; + cap->defrect = vout->crop_bounds[vout->cur_disp_output]; + retval = 0; + break; + } + case VIDIOC_G_CROP: + { + struct v4l2_crop *crop = arg; + + if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { + retval = -EINVAL; + break; + } + crop->c = vout->crop_current; + break; + } + case VIDIOC_S_CROP: + { + struct v4l2_crop *crop = arg; + struct v4l2_rect *b = + &(vout->crop_bounds[vout->cur_disp_output]); + + if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { + retval = -EINVAL; + break; + } + if (crop->c.height < 0) { + retval = -EINVAL; + break; + } + if (crop->c.width < 0) { + retval = -EINVAL; + break; + } + + /* only full screen supported for SDC BG */ + if (vout->cur_disp_output == 4) { + crop->c = vout->crop_current; + break; + } + + if (crop->c.top < b->top) + crop->c.top = b->top; + if (crop->c.top >= b->top + b->height) + crop->c.top = b->top + b->height - 1; + if (crop->c.height > b->top - crop->c.top + b->height) + crop->c.height = + b->top - crop->c.top + b->height; + + if (crop->c.left < b->left) + crop->c.left = b->left; + if (crop->c.left >= b->left + b->width) + crop->c.left = b->left + b->width - 1; + if (crop->c.width > b->left - crop->c.left + b->width) + crop->c.width = + b->left - crop->c.left + b->width; + + /* stride line limitation */ + crop->c.height -= crop->c.height % 8; + crop->c.width -= crop->c.width % 8; + + vout->crop_current = crop->c; + break; + } + case VIDIOC_ENUMOUTPUT: + { + struct v4l2_output *output = arg; + + if ((output->index >= 5) || + (vout->output_enabled[output->index] == false)) { + retval = -EINVAL; + break; + } + + if (output->index < 3) { + *output = mxc_outputs[MXC_V4L2_OUT_2_ADC]; + output->name[4] = '0' + output->index; + } else { + *output = mxc_outputs[MXC_V4L2_OUT_2_SDC]; + } + break; + } + case VIDIOC_G_OUTPUT: + { + int *p_output_num = arg; + + *p_output_num = vout->cur_disp_output; + break; + } + case VIDIOC_S_OUTPUT: + { + int *p_output_num = arg; + int fbnum; + struct v4l2_rect *b; + + if ((*p_output_num >= MXC_V4L2_OUT_NUM_OUTPUTS) || + (vout->output_enabled[*p_output_num] == false)) { + retval = -EINVAL; + break; + } + + if (vout->state != STATE_STREAM_OFF) { + retval = -EBUSY; + break; + } + + vout->cur_disp_output = *p_output_num; + + /* Update bounds in case they have changed */ + b = &vout->crop_bounds[vout->cur_disp_output]; + + fbnum = vout->output_fb_num[vout->cur_disp_output]; + if (vout->cur_disp_output == 3) + fbnum = vout->output_fb_num[4]; + + b->width = registered_fb[fbnum]->var.xres; + b->height = registered_fb[fbnum]->var.yres; + + vout->crop_current = *b; + break; + } + case VIDIOC_ENUM_FMT: + case VIDIOC_TRY_FMT: + case VIDIOC_QUERYCTRL: + case VIDIOC_G_PARM: + case VIDIOC_ENUMSTD: + case VIDIOC_G_STD: + case VIDIOC_S_STD: + case VIDIOC_G_TUNER: + case VIDIOC_S_TUNER: + case VIDIOC_G_FREQUENCY: + case VIDIOC_S_FREQUENCY: + default: + retval = -EINVAL; + break; + } + + up(&vout->busy_lock); + return retval; +} + +/* + * V4L2 interface - ioctl function + * + * @return None + */ +static int +mxc_v4l2out_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + return video_usercopy(inode, file, cmd, arg, mxc_v4l2out_do_ioctl); +} + +/*! + * V4L2 interface - mmap function + * + * @param file structure file * + * + * @param vma structure vm_area_struct * + * + * @return status 0 Success, EINTR busy lock error, + * ENOBUFS remap_page error + */ +static int mxc_v4l2out_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct video_device *vdev = video_devdata(file); + unsigned long size = vma->vm_end - vma->vm_start; + int res = 0; + int i; + vout_data *vout = video_get_drvdata(vdev); + + dev_dbg(vdev->dev, "pgoff=0x%lx, start=0x%lx, end=0x%lx\n", + vma->vm_pgoff, vma->vm_start, vma->vm_end); + + /* make this _really_ smp-safe */ + if (down_interruptible(&vout->busy_lock)) + return -EINTR; + + for (i = 0; i < vout->buffer_cnt; i++) { + if ((vout->v4l2_bufs[i].m.offset == + (vma->vm_pgoff << PAGE_SHIFT)) && + (vout->v4l2_bufs[i].length >= size)) { + vout->v4l2_bufs[i].flags |= V4L2_BUF_FLAG_MAPPED; + break; + } + } + if (i == vout->buffer_cnt) { + res = -ENOBUFS; + goto mxc_mmap_exit; + } + + /* make buffers inner write-back, outer write-thru cacheable */ + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); + + if (remap_pfn_range(vma, vma->vm_start, + vma->vm_pgoff, size, vma->vm_page_prot)) { + dev_dbg(vdev->dev, "mmap remap_pfn_range failed\n"); + res = -ENOBUFS; + goto mxc_mmap_exit; + } + + vma->vm_flags &= ~VM_IO; /* using shared anonymous pages */ + +mxc_mmap_exit: + up(&vout->busy_lock); + return res; +} + +/*! + * V4L2 interface - poll function + * + * @param file structure file * + * + * @param wait structure poll_table * + * + * @return status POLLIN | POLLRDNORM + */ +static unsigned int mxc_v4l2out_poll(struct file *file, poll_table * wait) +{ + struct video_device *dev = video_devdata(file); + vout_data *vout = video_get_drvdata(dev); + + wait_queue_head_t *queue = NULL; + int res = POLLIN | POLLRDNORM; + + if (down_interruptible(&vout->busy_lock)) + return -EINTR; + + queue = &vout->v4l_bufq; + poll_wait(file, queue, wait); + + up(&vout->busy_lock); + return res; +} + +static struct +file_operations mxc_v4l2out_fops = { + .owner = THIS_MODULE, + .open = mxc_v4l2out_open, + .release = mxc_v4l2out_close, + .ioctl = mxc_v4l2out_ioctl, + .mmap = mxc_v4l2out_mmap, + .poll = mxc_v4l2out_poll, +}; + +static struct video_device mxc_v4l2out_template = { + .owner = THIS_MODULE, + .name = "MXC Video Output", + .type = 0, + .type2 = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING, + .fops = &mxc_v4l2out_fops, + .release = video_device_release, +}; + +/*! + * Probe routine for the framebuffer driver. It is called during the + * driver binding process. The following functions are performed in + * this routine: Framebuffer initialization, Memory allocation and + * mapping, Framebuffer registration, IPU initialization. + * + * @return Appropriate error code to the kernel common code + */ +static int mxc_v4l2out_probe(struct platform_device *pdev) +{ + int i; + vout_data *vout; + + /* + * Allocate sufficient memory for the fb structure + */ + g_vout = vout = kmalloc(sizeof(vout_data), GFP_KERNEL); + + if (!vout) + return 0; + + memset(vout, 0, sizeof(vout_data)); + + vout->video_dev = video_device_alloc(); + if (vout->video_dev == NULL) + return -1; + vout->video_dev->dev = &pdev->dev; + vout->video_dev->minor = -1; + + *(vout->video_dev) = mxc_v4l2out_template; + + /* register v4l device */ + if (video_register_device(vout->video_dev, + VFL_TYPE_GRABBER, video_nr) == -1) { + dev_dbg(&pdev->dev, "video_register_device failed\n"); + return 0; + } + dev_info(&pdev->dev, "Registered device video%d\n", + vout->video_dev->minor & 0x1f); + vout->video_dev->dev = &pdev->dev; + + video_set_drvdata(vout->video_dev, vout); + + init_MUTEX(&vout->param_lock); + init_MUTEX(&vout->busy_lock); + + /* setup outputs and cropping */ + vout->cur_disp_output = -1; + for (i = 0; i < num_registered_fb; i++) { + char *idstr = registered_fb[i]->fix.id; + if (strncmp(idstr, "DISP", 4) == 0) { + int disp_num = idstr[4] - '0'; + if (disp_num == 3) { + if (strcmp(idstr, "DISP3 BG - DI1") == 0) + disp_num = 5; + else if (strncmp(idstr, "DISP3 BG", 8) == 0) + disp_num = 4; + } + vout->crop_bounds[disp_num].left = 0; + vout->crop_bounds[disp_num].top = 0; + vout->crop_bounds[disp_num].width = + registered_fb[i]->var.xres; + vout->crop_bounds[disp_num].height = + registered_fb[i]->var.yres; + vout->output_enabled[disp_num] = true; + vout->output_fb_num[disp_num] = i; + if (vout->cur_disp_output == -1) + vout->cur_disp_output = disp_num; + } + + } + vout->crop_current = vout->crop_bounds[vout->cur_disp_output]; + + platform_set_drvdata(pdev, vout); + + return 0; +} + +static int mxc_v4l2out_remove(struct platform_device *pdev) +{ + vout_data *vout = platform_get_drvdata(pdev); + + if (vout->video_dev) { + if (-1 != vout->video_dev->minor) + video_unregister_device(vout->video_dev); + else + video_device_release(vout->video_dev); + vout->video_dev = NULL; + } + + platform_set_drvdata(pdev, NULL); + + kfree(vout); + + return 0; +} + +/*! + * This structure contains pointers to the power management callback functions. + */ +static struct platform_driver mxc_v4l2out_driver = { + .driver = { + .name = "MXC Video Output", + }, + .probe = mxc_v4l2out_probe, + .remove = mxc_v4l2out_remove, +}; + +static struct platform_device mxc_v4l2out_device = { + .name = "MXC Video Output", + .id = 0, +}; + +/*! + * mxc v4l2 init function + * + */ +static int mxc_v4l2out_init(void) +{ + u8 err = 0; + + err = platform_driver_register(&mxc_v4l2out_driver); + if (err == 0) + platform_device_register(&mxc_v4l2out_device); + return err; +} + +/*! + * mxc v4l2 cleanup function + * + */ +static void mxc_v4l2out_clean(void) +{ + video_unregister_device(g_vout->video_dev); + + platform_driver_unregister(&mxc_v4l2out_driver); + platform_device_unregister(&mxc_v4l2out_device); + kfree(g_vout); + g_vout = NULL; +} + +module_init(mxc_v4l2out_init); +module_exit(mxc_v4l2out_clean); + +module_param(video_nr, int, 0444); +MODULE_AUTHOR("Freescale Semiconductor, Inc."); +MODULE_DESCRIPTION("V4L2-driver for MXC video output"); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("video"); diff --git a/drivers/media/video/mxc/output/mxc_pxp_v4l2.c b/drivers/media/video/mxc/output/mxc_pxp_v4l2.c new file mode 100644 index 000000000000..2855bb675d1d --- /dev/null +++ b/drivers/media/video/mxc/output/mxc_pxp_v4l2.c @@ -0,0 +1,1237 @@ +/* + * Copyright (C) 2010 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ +/* + * Based on STMP378X PxP driver + * Copyright 2008-2009 Embedded Alley Solutions, Inc All Rights Reserved. + */ + +#include <linux/dma-mapping.h> +#include <linux/fb.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/platform_device.h> +#include <linux/vmalloc.h> +#include <linux/videodev2.h> +#include <linux/dmaengine.h> +#include <linux/pxp_dma.h> +#include <linux/delay.h> +#include <linux/console.h> +#include <linux/mxcfb.h> + +#include <media/videobuf-dma-contig.h> +#include <media/v4l2-common.h> +#include <media/v4l2-dev.h> +#include <media/v4l2-ioctl.h> + +#include "mxc_pxp_v4l2.h" + +#define PXP_DRIVER_NAME "pxp-v4l2" +#define PXP_DRIVER_MAJOR 2 +#define PXP_DRIVER_MINOR 0 + +#define PXP_DEF_BUFS 2 +#define PXP_MIN_PIX 8 + +#define V4L2_OUTPUT_TYPE_INTERNAL 4 + +static struct pxp_data_format pxp_s0_formats[] = { + { + .name = "24-bit RGB", + .bpp = 4, + .fourcc = V4L2_PIX_FMT_RGB24, + .colorspace = V4L2_COLORSPACE_SRGB, + }, { + .name = "16-bit RGB 5:6:5", + .bpp = 2, + .fourcc = V4L2_PIX_FMT_RGB565, + .colorspace = V4L2_COLORSPACE_SRGB, + }, { + .name = "16-bit RGB 5:5:5", + .bpp = 2, + .fourcc = V4L2_PIX_FMT_RGB555, + .colorspace = V4L2_COLORSPACE_SRGB, + }, { + .name = "YUV 4:2:0 Planar", + .bpp = 2, + .fourcc = V4L2_PIX_FMT_YUV420, + .colorspace = V4L2_COLORSPACE_JPEG, + }, { + .name = "YUV 4:2:2 Planar", + .bpp = 2, + .fourcc = V4L2_PIX_FMT_YUV422P, + .colorspace = V4L2_COLORSPACE_JPEG, + }, +}; + +static unsigned int v4l2_fmt_to_pxp_fmt(u32 v4l2_pix_fmt) +{ + u32 pxp_fmt = 0; + + if (v4l2_pix_fmt == V4L2_PIX_FMT_RGB24) + pxp_fmt = PXP_PIX_FMT_RGB24; + else if (v4l2_pix_fmt == V4L2_PIX_FMT_RGB565) + pxp_fmt = PXP_PIX_FMT_RGB565; + else if (v4l2_pix_fmt == V4L2_PIX_FMT_RGB555) + pxp_fmt = PXP_PIX_FMT_RGB555; + else if (v4l2_pix_fmt == V4L2_PIX_FMT_RGB555) + pxp_fmt = PXP_PIX_FMT_RGB555; + else if (v4l2_pix_fmt == V4L2_PIX_FMT_YUV420) + pxp_fmt = PXP_PIX_FMT_YUV420P; + else if (v4l2_pix_fmt == V4L2_PIX_FMT_YUV422P) + pxp_fmt = PXP_PIX_FMT_YUV422P; + + return pxp_fmt; +} +struct v4l2_queryctrl pxp_controls[] = { + { + .id = V4L2_CID_HFLIP, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Horizontal Flip", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + .flags = 0, + }, { + .id = V4L2_CID_VFLIP, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Vertical Flip", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + .flags = 0, + }, { + .id = V4L2_CID_PRIVATE_BASE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Rotation", + .minimum = 0, + .maximum = 270, + .step = 90, + .default_value = 0, + .flags = 0, + }, { + .id = V4L2_CID_PRIVATE_BASE + 1, + .name = "Background Color", + .minimum = 0, + .maximum = 0xFFFFFF, + .step = 1, + .default_value = 0, + .flags = 0, + .type = V4L2_CTRL_TYPE_INTEGER, + }, { + .id = V4L2_CID_PRIVATE_BASE + 2, + .name = "Set S0 Chromakey", + .minimum = -1, + .maximum = 0xFFFFFF, + .step = 1, + .default_value = -1, + .flags = 0, + .type = V4L2_CTRL_TYPE_INTEGER, + }, { + .id = V4L2_CID_PRIVATE_BASE + 3, + .name = "YUV Colorspace", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + .flags = 0, + .type = V4L2_CTRL_TYPE_BOOLEAN, + }, +}; + +/* callback function */ +static void video_dma_done(void *arg) +{ + struct pxp_tx_desc *tx_desc = to_tx_desc(arg); + struct dma_chan *chan = tx_desc->txd.chan; + struct pxp_channel *pxp_chan = to_pxp_channel(chan); + struct pxps *pxp = pxp_chan->client; + struct videobuf_buffer *vb; + + dev_dbg(chan->device->dev, "callback cookie %d, active DMA 0x%08x\n", + tx_desc->txd.cookie, + pxp->active ? sg_dma_address(&pxp->active->sg[0]) : 0); + + spin_lock(&pxp->lock); + if (pxp->active) { + vb = &pxp->active->vb; + + list_del_init(&vb->queue); + vb->state = VIDEOBUF_DONE; + do_gettimeofday(&vb->ts); + vb->field_count++; + wake_up(&vb->done); + } + + if (list_empty(&pxp->outq)) { + pxp->active = NULL; + spin_unlock(&pxp->lock); + + return; + } + + pxp->active = list_entry(pxp->outq.next, + struct pxp_buffer, vb.queue); + pxp->active->vb.state = VIDEOBUF_ACTIVE; + spin_unlock(&pxp->lock); +} + +static int acquire_dma_channel(struct pxps *pxp) +{ + dma_cap_mask_t mask; + struct dma_chan *chan; + struct pxp_channel **pchan = &pxp->pxp_channel[0]; + + if (*pchan) { + struct videobuf_buffer *vb, *_vb; + dma_release_channel(&(*pchan)->dma_chan); + *pchan = NULL; + pxp->active = NULL; + list_for_each_entry_safe(vb, _vb, &pxp->outq, queue) { + list_del_init(&vb->queue); + vb->state = VIDEOBUF_ERROR; + wake_up(&vb->done); + } + } + + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); + dma_cap_set(DMA_PRIVATE, mask); + chan = dma_request_channel(mask, NULL, NULL); + if (!chan) + return -EBUSY; + + *pchan = to_pxp_channel(chan); + (*pchan)->client = pxp; + + return 0; +} + +static int _get_fbinfo(struct fb_info **fbi) +{ + int i; + for (i = 0; i < num_registered_fb; i++) { + char *idstr = registered_fb[i]->fix.id; + if (strcmp(idstr, "mxc_elcdif_fb") == 0) { + *fbi = registered_fb[i]; + return 0; + } + } + + return -ENODEV; +} + +static int pxp_set_fbinfo(struct pxps *pxp) +{ + struct fb_info *fbi; + struct v4l2_framebuffer *fb = &pxp->fb; + int err; + + err = _get_fbinfo(&fbi); + if (err) + return err; + + fb->fmt.width = fbi->var.xres; + fb->fmt.height = fbi->var.yres; + if (fbi->var.bits_per_pixel == 16) + fb->fmt.pixelformat = V4L2_PIX_FMT_RGB565; + else + fb->fmt.pixelformat = V4L2_PIX_FMT_RGB24; + fb->base = (void *)fbi->fix.smem_start; + + return 0; +} + +static int _get_cur_fb_blank(struct pxps *pxp) +{ + struct fb_info *fbi; + mm_segment_t old_fs; + int err = 0; + + err = _get_fbinfo(&fbi); + if (err) + return err; + + if (fbi->fbops->fb_ioctl) { + old_fs = get_fs(); + set_fs(KERNEL_DS); + err = fbi->fbops->fb_ioctl(fbi, MXCFB_GET_FB_BLANK, + (unsigned int)(&pxp->fb_blank)); + set_fs(old_fs); + } + + return err; +} + +static int set_fb_blank(int blank) +{ + struct fb_info *fbi; + int err = 0; + + err = _get_fbinfo(&fbi); + if (err) + return err; + + acquire_console_sem(); + fb_blank(fbi, blank); + release_console_sem(); + + return err; +} + +static int pxp_set_cstate(struct pxps *pxp, struct v4l2_control *vc) +{ + + if (vc->id == V4L2_CID_HFLIP) { + pxp->pxp_conf.proc_data.hflip = vc->value; + } else if (vc->id == V4L2_CID_VFLIP) { + pxp->pxp_conf.proc_data.vflip = vc->value; + } else if (vc->id == V4L2_CID_PRIVATE_BASE) { + if (vc->value % 90) + return -ERANGE; + pxp->pxp_conf.proc_data.rotate = vc->value; + } else if (vc->id == V4L2_CID_PRIVATE_BASE + 1) { + pxp->pxp_conf.proc_data.bgcolor = vc->value; + } else if (vc->id == V4L2_CID_PRIVATE_BASE + 2) { + pxp->pxp_conf.s0_param.color_key = vc->value; + } else if (vc->id == V4L2_CID_PRIVATE_BASE + 3) { + pxp->pxp_conf.proc_data.yuv = vc->value; + } + + return 0; +} + +static int pxp_get_cstate(struct pxps *pxp, struct v4l2_control *vc) +{ + if (vc->id == V4L2_CID_HFLIP) + vc->value = pxp->pxp_conf.proc_data.hflip; + else if (vc->id == V4L2_CID_VFLIP) + vc->value = pxp->pxp_conf.proc_data.vflip; + else if (vc->id == V4L2_CID_PRIVATE_BASE) + vc->value = pxp->pxp_conf.proc_data.rotate; + else if (vc->id == V4L2_CID_PRIVATE_BASE + 1) + vc->value = pxp->pxp_conf.proc_data.bgcolor; + else if (vc->id == V4L2_CID_PRIVATE_BASE + 2) + vc->value = pxp->pxp_conf.s0_param.color_key; + else if (vc->id == V4L2_CID_PRIVATE_BASE + 3) + vc->value = pxp->pxp_conf.proc_data.yuv; + + return 0; +} + +static int pxp_enumoutput(struct file *file, void *fh, + struct v4l2_output *o) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + if ((o->index < 0) || (o->index > 1)) + return -EINVAL; + + memset(o, 0, sizeof(struct v4l2_output)); + if (o->index == 0) { + strcpy(o->name, "PxP Display Output"); + pxp->output = 0; + } else { + strcpy(o->name, "PxP Virtual Output"); + pxp->output = 1; + } + o->type = V4L2_OUTPUT_TYPE_INTERNAL; + o->std = 0; + o->reserved[0] = pxp->outb_phys; + + return 0; +} + +static int pxp_g_output(struct file *file, void *fh, + unsigned int *i) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + *i = pxp->output; + + return 0; +} + +static int pxp_s_output(struct file *file, void *fh, + unsigned int i) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + struct v4l2_pix_format *fmt = &pxp->fb.fmt; + int bpp; + + if ((i < 0) || (i > 1)) + return -EINVAL; + + if (pxp->outb) + return 0; + + /* Output buffer is same format as fbdev */ + if (fmt->pixelformat == V4L2_PIX_FMT_RGB24) + bpp = 4; + else + bpp = 2; + + pxp->outb_size = fmt->width * fmt->height * bpp; + pxp->outb = kmalloc(fmt->width * fmt->height * bpp, GFP_KERNEL); + pxp->outb_phys = virt_to_phys(pxp->outb); + dma_map_single(NULL, pxp->outb, + fmt->width * fmt->height * bpp, DMA_TO_DEVICE); + + pxp->pxp_conf.out_param.width = fmt->width; + pxp->pxp_conf.out_param.height = fmt->height; + if (fmt->pixelformat == V4L2_PIX_FMT_RGB24) + pxp->pxp_conf.out_param.pixel_fmt = PXP_PIX_FMT_RGB24; + else + pxp->pxp_conf.out_param.pixel_fmt = PXP_PIX_FMT_RGB565; + + return 0; +} + +static int pxp_enum_fmt_video_output(struct file *file, void *fh, + struct v4l2_fmtdesc *fmt) +{ + enum v4l2_buf_type type = fmt->type; + int index = fmt->index; + + if ((fmt->index < 0) || (fmt->index >= ARRAY_SIZE(pxp_s0_formats))) + return -EINVAL; + + memset(fmt, 0, sizeof(struct v4l2_fmtdesc)); + fmt->index = index; + fmt->type = type; + fmt->pixelformat = pxp_s0_formats[index].fourcc; + strcpy(fmt->description, pxp_s0_formats[index].name); + + return 0; +} + +static int pxp_g_fmt_video_output(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct v4l2_pix_format *pf = &f->fmt.pix; + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + struct pxp_data_format *fmt = pxp->s0_fmt; + + pf->width = pxp->pxp_conf.s0_param.width; + pf->height = pxp->pxp_conf.s0_param.height; + pf->pixelformat = fmt->fourcc; + pf->field = V4L2_FIELD_NONE; + pf->bytesperline = fmt->bpp * pf->width; + pf->sizeimage = pf->bytesperline * pf->height; + pf->colorspace = fmt->colorspace; + pf->priv = 0; + + return 0; +} + +static struct pxp_data_format *pxp_get_format(struct v4l2_format *f) +{ + struct pxp_data_format *fmt; + int i; + + for (i = 0; i < ARRAY_SIZE(pxp_s0_formats); i++) { + fmt = &pxp_s0_formats[i]; + if (fmt->fourcc == f->fmt.pix.pixelformat) + break; + } + + if (i == ARRAY_SIZE(pxp_s0_formats)) + return NULL; + + return &pxp_s0_formats[i]; +} + +static int pxp_try_fmt_video_output(struct file *file, void *fh, + struct v4l2_format *f) +{ + int w = f->fmt.pix.width; + int h = f->fmt.pix.height; + struct pxp_data_format *fmt = pxp_get_format(f); + + if (!fmt) + return -EINVAL; + + w = min(w, 2040); + w = max(w, 8); + h = min(h, 2040); + h = max(h, 8); + f->fmt.pix.field = V4L2_FIELD_NONE; + f->fmt.pix.width = w; + f->fmt.pix.height = h; + f->fmt.pix.pixelformat = fmt->fourcc; + + return 0; +} + +static int pxp_s_fmt_video_output(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + struct v4l2_pix_format *pf = &f->fmt.pix; + int ret; + + ret = acquire_dma_channel(pxp); + if (ret < 0) + return ret; + + ret = pxp_try_fmt_video_output(file, fh, f); + if (ret == 0) { + pxp->s0_fmt = pxp_get_format(f); + pxp->pxp_conf.s0_param.pixel_fmt = + v4l2_fmt_to_pxp_fmt(pxp->s0_fmt->fourcc); + pxp->pxp_conf.s0_param.width = pf->width; + pxp->pxp_conf.s0_param.height = pf->height; + } + + + return ret; +} + +static int pxp_g_fmt_output_overlay(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + struct v4l2_window *wf = &f->fmt.win; + + memset(wf, 0, sizeof(struct v4l2_window)); + wf->chromakey = pxp->s1_chromakey; + wf->global_alpha = pxp->global_alpha; + wf->field = V4L2_FIELD_NONE; + wf->clips = NULL; + wf->clipcount = 0; + wf->bitmap = NULL; + wf->w.left = pxp->pxp_conf.proc_data.srect.left; + wf->w.top = pxp->pxp_conf.proc_data.srect.top; + wf->w.width = pxp->pxp_conf.proc_data.srect.width; + wf->w.height = pxp->pxp_conf.proc_data.srect.height; + + return 0; +} + +static int pxp_try_fmt_output_overlay(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + struct v4l2_window *wf = &f->fmt.win; + struct v4l2_rect srect; + u32 s1_chromakey = wf->chromakey; + u8 global_alpha = wf->global_alpha; + + memcpy(&srect, &(wf->w), sizeof(struct v4l2_rect)); + + pxp_g_fmt_output_overlay(file, fh, f); + + wf->chromakey = s1_chromakey; + wf->global_alpha = global_alpha; + + /* Constrain parameters to the input buffer */ + wf->w.left = srect.left; + wf->w.top = srect.top; + wf->w.width = min(srect.width, + ((__s32)pxp->pxp_conf.s0_param.width - wf->w.left)); + wf->w.height = min(srect.height, + ((__s32)pxp->pxp_conf.s0_param.height - wf->w.top)); + + return 0; +} + +static int pxp_s_fmt_output_overlay(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + struct v4l2_window *wf = &f->fmt.win; + int ret = pxp_try_fmt_output_overlay(file, fh, f); + + if (ret == 0) { + pxp->global_alpha = wf->global_alpha; + pxp->s1_chromakey = wf->chromakey; + pxp->pxp_conf.proc_data.srect.left = wf->w.left; + pxp->pxp_conf.proc_data.srect.top = wf->w.top; + pxp->pxp_conf.proc_data.srect.width = wf->w.width; + pxp->pxp_conf.proc_data.srect.height = wf->w.height; + pxp->pxp_conf.ol_param[0].global_alpha = pxp->global_alpha; + pxp->pxp_conf.ol_param[0].color_key = pxp->s1_chromakey; + pxp->pxp_conf.ol_param[0].color_key_enable = + pxp->s1_chromakey_state; + } + + return ret; +} + +static int pxp_reqbufs(struct file *file, void *priv, + struct v4l2_requestbuffers *r) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + return videobuf_reqbufs(&pxp->s0_vbq, r); +} + +static int pxp_querybuf(struct file *file, void *priv, + struct v4l2_buffer *b) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + return videobuf_querybuf(&pxp->s0_vbq, b); +} + +static int pxp_qbuf(struct file *file, void *priv, + struct v4l2_buffer *b) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + return videobuf_qbuf(&pxp->s0_vbq, b); +} + +static int pxp_dqbuf(struct file *file, void *priv, + struct v4l2_buffer *b) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + return videobuf_dqbuf(&pxp->s0_vbq, b, file->f_flags & O_NONBLOCK); +} + +static int pxp_streamon(struct file *file, void *priv, + enum v4l2_buf_type t) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + int ret = 0; + + if (t != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + + _get_cur_fb_blank(pxp); + set_fb_blank(FB_BLANK_UNBLANK); + + ret = videobuf_streamon(&pxp->s0_vbq); + + if (!ret && (pxp->output == 0)) + mxc_elcdif_frame_addr_setup(pxp->outb_phys); + + return ret; +} + +static int pxp_streamoff(struct file *file, void *priv, + enum v4l2_buf_type t) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + int ret = 0; + + if ((t != V4L2_BUF_TYPE_VIDEO_OUTPUT)) + return -EINVAL; + + ret = videobuf_streamoff(&pxp->s0_vbq); + + if (!ret) + mxc_elcdif_frame_addr_setup((dma_addr_t)pxp->fb.base); + + if (pxp->fb_blank) + set_fb_blank(FB_BLANK_POWERDOWN); + + return ret; +} + +static int pxp_buf_setup(struct videobuf_queue *q, + unsigned int *count, unsigned *size) +{ + struct pxps *pxp = q->priv_data; + + *size = pxp->pxp_conf.s0_param.width * + pxp->pxp_conf.s0_param.height * pxp->s0_fmt->bpp; + + if (0 == *count) + *count = PXP_DEF_BUFS; + + return 0; +} + +static void pxp_buf_free(struct videobuf_queue *q, struct pxp_buffer *buf) +{ + struct videobuf_buffer *vb = &buf->vb; + struct dma_async_tx_descriptor *txd = buf->txd; + + BUG_ON(in_interrupt()); + + pr_debug("%s (vb=0x%p) 0x%08lx %d\n", __func__, + vb, vb->baddr, vb->bsize); + + /* + * This waits until this buffer is out of danger, i.e., until it is no + * longer in STATE_QUEUED or STATE_ACTIVE + */ + videobuf_waiton(vb, 0, 0); + if (txd) + async_tx_ack(txd); + + videobuf_dma_contig_free(q, vb); + buf->txd = NULL; + + vb->state = VIDEOBUF_NEEDS_INIT; +} + +static int pxp_buf_prepare(struct videobuf_queue *q, + struct videobuf_buffer *vb, + enum v4l2_field field) +{ + struct pxps *pxp = q->priv_data; + struct pxp_config_data *pxp_conf = &pxp->pxp_conf; + struct pxp_proc_data *proc_data = &pxp_conf->proc_data; + struct pxp_buffer *buf = container_of(vb, struct pxp_buffer, vb); + struct pxp_tx_desc *desc; + int ret = 0; + int i, length; + + vb->width = pxp->pxp_conf.s0_param.width; + vb->height = pxp->pxp_conf.s0_param.height; + vb->size = vb->width * vb->height * pxp->s0_fmt->bpp; + vb->field = V4L2_FIELD_NONE; + if (vb->state != VIDEOBUF_NEEDS_INIT) + pxp_buf_free(q, buf); + + if (vb->state == VIDEOBUF_NEEDS_INIT) { + struct pxp_channel *pchan = pxp->pxp_channel[0]; + struct scatterlist *sg = &buf->sg; + + /* This actually (allocates and) maps buffers */ + ret = videobuf_iolock(q, vb, NULL); + if (ret) { + pr_err("fail to call videobuf_iolock, ret = %d\n", ret); + goto fail; + } + + /* + * sg[0] for input(S0) + * Sg[1] for output + */ + sg_init_table(sg, 3); + + buf->txd = pchan->dma_chan.device->device_prep_slave_sg( + &pchan->dma_chan, sg, 3, DMA_FROM_DEVICE, + DMA_PREP_INTERRUPT); + if (!buf->txd) { + ret = -EIO; + goto fail; + } + + buf->txd->callback_param = buf->txd; + buf->txd->callback = video_dma_done; + + desc = to_tx_desc(buf->txd); + length = desc->len; + for (i = 0; i < length; i++) { + if (i == 0) {/* S0 */ + memcpy(&desc->proc_data, proc_data, + sizeof(struct pxp_proc_data)); + pxp_conf->s0_param.paddr = + videobuf_to_dma_contig(vb); + memcpy(&desc->layer_param.s0_param, + &pxp_conf->s0_param, + sizeof(struct pxp_layer_param)); + } else if (i == 1) { /* Output */ + if (proc_data->rotate % 180) { + pxp_conf->out_param.width = + pxp->fb.fmt.height; + pxp_conf->out_param.height = + pxp->fb.fmt.width; + } else { + pxp_conf->out_param.width = + pxp->fb.fmt.width; + pxp_conf->out_param.height = + pxp->fb.fmt.height; + } + + pxp_conf->out_param.paddr = pxp->outb_phys; + memcpy(&desc->layer_param.out_param, + &pxp_conf->out_param, + sizeof(struct pxp_layer_param)); + } else if (pxp_conf->ol_param[0].combine_enable) { + /* Overlay */ + pxp_conf->ol_param[0].paddr = + (dma_addr_t)pxp->fb.base; + pxp_conf->ol_param[0].width = pxp->fb.fmt.width; + pxp_conf->ol_param[0].height = + pxp->fb.fmt.height; + pxp_conf->ol_param[0].pixel_fmt = + pxp_conf->out_param.pixel_fmt; + memcpy(&desc->layer_param.ol_param, + &pxp_conf->ol_param[0], + sizeof(struct pxp_layer_param)); + } + + desc = desc->next; + } + + vb->state = VIDEOBUF_PREPARED; + } + + return 0; + +fail: + pxp_buf_free(q, buf); + return ret; +} + + +static void pxp_buf_queue(struct videobuf_queue *q, + struct videobuf_buffer *vb) +{ + struct pxps *pxp = q->priv_data; + struct pxp_buffer *buf = container_of(vb, struct pxp_buffer, vb); + struct dma_async_tx_descriptor *txd = buf->txd; + struct pxp_channel *pchan = pxp->pxp_channel[0]; + dma_cookie_t cookie; + + BUG_ON(!irqs_disabled()); + + list_add_tail(&vb->queue, &pxp->outq); + + if (!pxp->active) { + pxp->active = buf; + vb->state = VIDEOBUF_ACTIVE; + } else { + vb->state = VIDEOBUF_QUEUED; + } + + spin_unlock_irq(&pxp->lock); + + cookie = txd->tx_submit(txd); + dev_dbg(&pxp->pdev->dev, "Submitted cookie %d DMA 0x%08x\n", + cookie, sg_dma_address(&buf->sg[0])); + mdelay(5); + /* trigger ePxP */ + dma_async_issue_pending(&pchan->dma_chan); + + spin_lock_irq(&pxp->lock); + + if (cookie >= 0) + return; + + /* Submit error */ + pr_err("%s: Submit error\n", __func__); + vb->state = VIDEOBUF_PREPARED; + + list_del_init(&vb->queue); + + if (pxp->active == buf) + pxp->active = NULL; +} + +static void pxp_buf_release(struct videobuf_queue *q, + struct videobuf_buffer *vb) +{ + struct pxps *pxp = q->priv_data; + struct pxp_buffer *buf = container_of(vb, struct pxp_buffer, vb); + unsigned long flags; + + spin_lock_irqsave(&pxp->lock, flags); + if ((vb->state == VIDEOBUF_ACTIVE || vb->state == VIDEOBUF_QUEUED) && + !list_empty(&vb->queue)) { + vb->state = VIDEOBUF_ERROR; + + list_del_init(&vb->queue); + if (pxp->active == buf) + pxp->active = NULL; + } + spin_unlock_irqrestore(&pxp->lock, flags); + + pxp_buf_free(q, buf); +} + +static struct videobuf_queue_ops pxp_vbq_ops = { + .buf_setup = pxp_buf_setup, + .buf_prepare = pxp_buf_prepare, + .buf_queue = pxp_buf_queue, + .buf_release = pxp_buf_release, +}; + +static int pxp_querycap(struct file *file, void *fh, + struct v4l2_capability *cap) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + memset(cap, 0, sizeof(*cap)); + strcpy(cap->driver, "pxp"); + strcpy(cap->card, "pxp"); + strlcpy(cap->bus_info, dev_name(&pxp->pdev->dev), + sizeof(cap->bus_info)); + + cap->version = (PXP_DRIVER_MAJOR << 8) + PXP_DRIVER_MINOR; + + cap->capabilities = V4L2_CAP_VIDEO_OUTPUT | + V4L2_CAP_VIDEO_OUTPUT_OVERLAY | + V4L2_CAP_STREAMING; + + return 0; +} + +static int pxp_g_fbuf(struct file *file, void *priv, + struct v4l2_framebuffer *fb) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + memset(fb, 0, sizeof(*fb)); + + fb->capability = V4L2_FBUF_CAP_EXTERNOVERLAY | + V4L2_FBUF_CAP_CHROMAKEY | + V4L2_FBUF_CAP_LOCAL_ALPHA | + V4L2_FBUF_CAP_GLOBAL_ALPHA; + + if (pxp->global_alpha_state) + fb->flags |= V4L2_FBUF_FLAG_GLOBAL_ALPHA; + if (pxp->s1_chromakey_state) + fb->flags |= V4L2_FBUF_FLAG_CHROMAKEY; + + return 0; +} + +static int pxp_s_fbuf(struct file *file, void *priv, + struct v4l2_framebuffer *fb) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + pxp->overlay_state = + (fb->flags & V4L2_FBUF_FLAG_OVERLAY) != 0; + pxp->global_alpha_state = + (fb->flags & V4L2_FBUF_FLAG_GLOBAL_ALPHA) != 0; + pxp->s1_chromakey_state = + (fb->flags & V4L2_FBUF_FLAG_CHROMAKEY) != 0; + + pxp->pxp_conf.ol_param[0].combine_enable = pxp->overlay_state; + pxp->pxp_conf.ol_param[0].global_alpha_enable = pxp->global_alpha_state; + + return 0; +} + +static int pxp_g_crop(struct file *file, void *fh, + struct v4l2_crop *c) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + if (c->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY) + return -EINVAL; + + c->c.left = pxp->pxp_conf.proc_data.drect.left; + c->c.top = pxp->pxp_conf.proc_data.drect.top; + c->c.width = pxp->pxp_conf.proc_data.drect.width; + c->c.height = pxp->pxp_conf.proc_data.drect.height; + + return 0; +} + +static int pxp_s_crop(struct file *file, void *fh, + struct v4l2_crop *c) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + int l = c->c.left; + int t = c->c.top; + int w = c->c.width; + int h = c->c.height; + int fbw = pxp->fb.fmt.width; + int fbh = pxp->fb.fmt.height; + + if (c->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY) + return -EINVAL; + + /* Constrain parameters to FB limits */ + w = min(w, fbw); + w = max(w, PXP_MIN_PIX); + h = min(h, fbh); + h = max(h, PXP_MIN_PIX); + if ((l + w) > fbw) + l = 0; + if ((t + h) > fbh) + t = 0; + + /* Round up values to PxP pixel block */ + l = roundup(l, PXP_MIN_PIX); + t = roundup(t, PXP_MIN_PIX); + w = roundup(w, PXP_MIN_PIX); + h = roundup(h, PXP_MIN_PIX); + + pxp->pxp_conf.proc_data.drect.left = l; + pxp->pxp_conf.proc_data.drect.top = t; + pxp->pxp_conf.proc_data.drect.width = w; + pxp->pxp_conf.proc_data.drect.height = h; + + return 0; +} + +static int pxp_queryctrl(struct file *file, void *priv, + struct v4l2_queryctrl *qc) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(pxp_controls); i++) + if (qc->id && qc->id == pxp_controls[i].id) { + memcpy(qc, &(pxp_controls[i]), sizeof(*qc)); + return 0; + } + + return -EINVAL; +} + +static int pxp_g_ctrl(struct file *file, void *priv, + struct v4l2_control *vc) +{ + int i; + + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + for (i = 0; i < ARRAY_SIZE(pxp_controls); i++) + if (vc->id == pxp_controls[i].id) + return pxp_get_cstate(pxp, vc); + + return -EINVAL; +} + +static int pxp_s_ctrl(struct file *file, void *priv, + struct v4l2_control *vc) +{ + int i; + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + for (i = 0; i < ARRAY_SIZE(pxp_controls); i++) + if (vc->id == pxp_controls[i].id) { + if (vc->value < pxp_controls[i].minimum || + vc->value > pxp_controls[i].maximum) + return -ERANGE; + return pxp_set_cstate(pxp, vc); + } + + return -EINVAL; +} + +void pxp_release(struct video_device *vfd) +{ + struct pxps *pxp = video_get_drvdata(vfd); + + spin_lock(&pxp->lock); + video_device_release(vfd); + spin_unlock(&pxp->lock); +} + +static int pxp_open(struct file *file) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + int ret = 0; + + mutex_lock(&pxp->mutex); + pxp->users++; + + if (pxp->users > 1) { + pxp->users--; + ret = -EBUSY; + goto out; + } +out: + mutex_unlock(&pxp->mutex); + if (ret) + return ret; + + videobuf_queue_dma_contig_init(&pxp->s0_vbq, + &pxp_vbq_ops, + &pxp->pdev->dev, + &pxp->lock, + V4L2_BUF_TYPE_VIDEO_OUTPUT, + V4L2_FIELD_NONE, + sizeof(struct pxp_buffer), + pxp); + dev_dbg(&pxp->pdev->dev, "call pxp_open\n"); + + return 0; +} + +static int pxp_close(struct file *file) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + + videobuf_stop(&pxp->s0_vbq); + videobuf_mmap_free(&pxp->s0_vbq); + pxp->active = NULL; + kfree(pxp->outb); + pxp->outb = NULL; + + mutex_lock(&pxp->mutex); + pxp->users--; + mutex_unlock(&pxp->mutex); + + return 0; +} + +static int pxp_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct pxps *pxp = video_get_drvdata(video_devdata(file)); + int ret; + + ret = videobuf_mmap_mapper(&pxp->s0_vbq, vma); + + return ret; +} + +static const struct v4l2_file_operations pxp_fops = { + .owner = THIS_MODULE, + .open = pxp_open, + .release = pxp_close, + .ioctl = video_ioctl2, + .mmap = pxp_mmap, +}; + +static const struct v4l2_ioctl_ops pxp_ioctl_ops = { + .vidioc_querycap = pxp_querycap, + + .vidioc_reqbufs = pxp_reqbufs, + .vidioc_querybuf = pxp_querybuf, + .vidioc_qbuf = pxp_qbuf, + .vidioc_dqbuf = pxp_dqbuf, + + .vidioc_streamon = pxp_streamon, + .vidioc_streamoff = pxp_streamoff, + + .vidioc_enum_output = pxp_enumoutput, + .vidioc_g_output = pxp_g_output, + .vidioc_s_output = pxp_s_output, + + .vidioc_enum_fmt_vid_out = pxp_enum_fmt_video_output, + .vidioc_try_fmt_vid_out = pxp_try_fmt_video_output, + .vidioc_g_fmt_vid_out = pxp_g_fmt_video_output, + .vidioc_s_fmt_vid_out = pxp_s_fmt_video_output, + + .vidioc_try_fmt_vid_out_overlay = pxp_try_fmt_output_overlay, + .vidioc_g_fmt_vid_out_overlay = pxp_g_fmt_output_overlay, + .vidioc_s_fmt_vid_out_overlay = pxp_s_fmt_output_overlay, + + .vidioc_g_fbuf = pxp_g_fbuf, + .vidioc_s_fbuf = pxp_s_fbuf, + + .vidioc_g_crop = pxp_g_crop, + .vidioc_s_crop = pxp_s_crop, + + .vidioc_queryctrl = pxp_queryctrl, + .vidioc_g_ctrl = pxp_g_ctrl, + .vidioc_s_ctrl = pxp_s_ctrl, +}; + +static const struct video_device pxp_template = { + .name = "PxP", + .vfl_type = V4L2_CAP_VIDEO_OUTPUT | + V4L2_CAP_VIDEO_OVERLAY | + V4L2_CAP_STREAMING, + .fops = &pxp_fops, + .release = pxp_release, + .minor = -1, + .ioctl_ops = &pxp_ioctl_ops, +}; + +static int pxp_probe(struct platform_device *pdev) +{ + struct pxps *pxp; + int err = 0; + + pxp = kzalloc(sizeof(*pxp), GFP_KERNEL); + if (!pxp) { + dev_err(&pdev->dev, "failed to allocate control object\n"); + err = -ENOMEM; + goto exit; + } + + dev_set_drvdata(&pdev->dev, pxp); + + INIT_LIST_HEAD(&pxp->outq); + spin_lock_init(&pxp->lock); + mutex_init(&pxp->mutex); + + pxp->pdev = pdev; + + pxp->vdev = video_device_alloc(); + if (!pxp->vdev) { + dev_err(&pdev->dev, "video_device_alloc() failed\n"); + err = -ENOMEM; + goto freeirq; + } + + memcpy(pxp->vdev, &pxp_template, sizeof(pxp_template)); + video_set_drvdata(pxp->vdev, pxp); + + err = video_register_device(pxp->vdev, VFL_TYPE_GRABBER, 0); + if (err) { + dev_err(&pdev->dev, "failed to register video device\n"); + goto freevdev; + } + + err = pxp_set_fbinfo(pxp); + if (err) { + dev_err(&pdev->dev, "failed to call pxp_set_fbinfo\n"); + goto freevdev; + } + + dev_info(&pdev->dev, "initialized\n"); + +exit: + return err; + +freevdev: + video_device_release(pxp->vdev); + +freeirq: + kfree(pxp); + + return err; +} + +static int __devexit pxp_remove(struct platform_device *pdev) +{ + struct pxps *pxp = platform_get_drvdata(pdev); + + video_unregister_device(pxp->vdev); + video_device_release(pxp->vdev); + + kfree(pxp); + + return 0; +} + +static struct platform_driver pxp_driver = { + .driver = { + .name = PXP_DRIVER_NAME, + }, + .probe = pxp_probe, + .remove = __exit_p(pxp_remove), +}; + + +static int __devinit pxp_init(void) +{ + return platform_driver_register(&pxp_driver); +} + +static void __exit pxp_exit(void) +{ + platform_driver_unregister(&pxp_driver); +} + +module_init(pxp_init); +module_exit(pxp_exit); + +MODULE_DESCRIPTION("MXC PxP V4L2 driver"); +MODULE_AUTHOR("Freescale Semiconductor, Inc."); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/video/mxc/output/mxc_pxp_v4l2.h b/drivers/media/video/mxc/output/mxc_pxp_v4l2.h new file mode 100644 index 000000000000..d17eea571374 --- /dev/null +++ b/drivers/media/video/mxc/output/mxc_pxp_v4l2.h @@ -0,0 +1,82 @@ +/* + * Copyright (C) 2010 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ +/* + * Based on STMP378X PxP driver + * Copyright 2008-2009 Embedded Alley Solutions, Inc All Rights Reserved. + */ + +#ifndef _MXC_PXP_V4L2_H +#define _MXC_PXP_V4L2_H + +#include <linux/dmaengine.h> +#include <linux/pxp_dma.h> + +struct pxp_buffer { + /* Must be first! */ + struct videobuf_buffer vb; + + /* One descriptor per scatterlist (per frame) */ + struct dma_async_tx_descriptor *txd; + + struct scatterlist sg[3]; +}; + +struct pxps { + struct platform_device *pdev; + + spinlock_t lock; + struct mutex mutex; + int users; + + struct video_device *vdev; + + struct videobuf_queue s0_vbq; + struct pxp_buffer *active; + struct list_head outq; + struct pxp_channel *pxp_channel[1]; /* We need 1 channel */ + struct pxp_config_data pxp_conf; + + int output; + u32 *outb; + dma_addr_t outb_phys; + u32 outb_size; + + /* Current S0 configuration */ + struct pxp_data_format *s0_fmt; + + struct v4l2_framebuffer fb; + + /* Output overlay support */ + int overlay_state; + int global_alpha_state; + u8 global_alpha; + int s1_chromakey_state; + u32 s1_chromakey; + + int fb_blank; +}; + +struct pxp_data_format { + char *name; + unsigned int bpp; + u32 fourcc; + enum v4l2_colorspace colorspace; +}; + +#endif diff --git a/drivers/media/video/mxc/output/mxc_v4l2_output.c b/drivers/media/video/mxc/output/mxc_v4l2_output.c new file mode 100644 index 000000000000..86cd795d6bd6 --- /dev/null +++ b/drivers/media/video/mxc/output/mxc_v4l2_output.c @@ -0,0 +1,2793 @@ +/* + * Copyright 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +/*! + * @file drivers/media/video/mxc/output/mxc_v4l2_output.c + * + * @brief MXC V4L2 Video Output Driver + * + * Video4Linux2 Output Device using MXC IPU Post-processing functionality. + * + * @ingroup MXC_V4L2_OUTPUT + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/semaphore.h> +#include <linux/slab.h> +#include <linux/console.h> +#include <linux/fs.h> +#include <linux/delay.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/mxcfb.h> +#include <media/v4l2-ioctl.h> +#include <asm/cacheflush.h> +#include <mach/hardware.h> + +#include "mxc_v4l2_output.h" + +#define INTERLACED_CONTENT(vout) (((cpu_is_mx51_rev(CHIP_REV_2_0) >= 1) || \ + cpu_is_mx53()) && \ + (((vout)->field_fmt == V4L2_FIELD_INTERLACED_TB) || \ + ((vout)->field_fmt == V4L2_FIELD_INTERLACED_BT))) +#define LOAD_3FIELDS(vout) ((INTERLACED_CONTENT(vout)) && \ + ((vout)->motion_sel != HIGH_MOTION)) + +struct v4l2_output mxc_outputs[1] = { + { + .index = MXC_V4L2_OUT_2_SDC, + .name = "DISP3 Video Out", + .type = V4L2_OUTPUT_TYPE_ANALOG, /* not really correct, + but no other choice */ + .audioset = 0, + .modulator = 0, + .std = V4L2_STD_UNKNOWN} +}; + +static int video_nr = 16; +static DEFINE_SPINLOCK(g_lock); +static int last_index_n; +static unsigned int ipu_ic_out_max_width_size; +static unsigned int ipu_ic_out_max_height_size; +/* debug counters */ +uint32_t g_irq_cnt; +uint32_t g_buf_output_cnt; +uint32_t g_buf_q_cnt; +uint32_t g_buf_dq_cnt; + +#define QUEUE_SIZE (MAX_FRAME_NUM + 1) +static __inline int queue_size(v4l_queue *q) +{ + if (q->tail >= q->head) + return q->tail - q->head; + else + return (q->tail + QUEUE_SIZE) - q->head; +} + +static __inline int queue_buf(v4l_queue *q, int idx) +{ + if (((q->tail + 1) % QUEUE_SIZE) == q->head) + return -1; /* queue full */ + q->list[q->tail] = idx; + q->tail = (q->tail + 1) % QUEUE_SIZE; + return 0; +} + +static __inline int dequeue_buf(v4l_queue *q) +{ + int ret; + if (q->tail == q->head) + return -1; /* queue empty */ + ret = q->list[q->head]; + q->head = (q->head + 1) % QUEUE_SIZE; + return ret; +} + +static __inline int peek_next_buf(v4l_queue *q) +{ + if (q->tail == q->head) + return -1; /* queue empty */ + return q->list[q->head]; +} + +static __inline unsigned long get_jiffies(struct timeval *t) +{ + struct timeval cur; + + if (t->tv_usec >= 1000000) { + t->tv_sec += t->tv_usec / 1000000; + t->tv_usec = t->tv_usec % 1000000; + } + + do_gettimeofday(&cur); + if ((t->tv_sec < cur.tv_sec) + || ((t->tv_sec == cur.tv_sec) && (t->tv_usec < cur.tv_usec))) + return jiffies; + + if (t->tv_usec < cur.tv_usec) { + cur.tv_sec = t->tv_sec - cur.tv_sec - 1; + cur.tv_usec = t->tv_usec + 1000000 - cur.tv_usec; + } else { + cur.tv_sec = t->tv_sec - cur.tv_sec; + cur.tv_usec = t->tv_usec - cur.tv_usec; + } + + return jiffies + timeval_to_jiffies(&cur); +} + +/*! + * Private function to free buffers + * + * @param bufs_paddr Array of physical address of buffers to be freed + * + * @param bufs_vaddr Array of virtual address of buffers to be freed + * + * @param num_buf Number of buffers to be freed + * + * @param size Size for each buffer to be free + * + * @return status 0 success. + */ +static int mxc_free_buffers(dma_addr_t bufs_paddr[], void *bufs_vaddr[], + int num_buf, int size) +{ + int i; + + for (i = 0; i < num_buf; i++) { + if (bufs_vaddr[i] != 0) { + dma_free_coherent(0, size, bufs_vaddr[i], + bufs_paddr[i]); + pr_debug("freed @ paddr=0x%08X\n", (u32) bufs_paddr[i]); + bufs_paddr[i] = 0; + bufs_vaddr[i] = NULL; + } + } + return 0; +} + +/*! + * Private function to allocate buffers + * + * @param bufs_paddr Output array of physical address of buffers allocated + * + * @param bufs_vaddr Output array of virtual address of buffers allocated + * + * @param num_buf Input number of buffers to allocate + * + * @param size Input size for each buffer to allocate + * + * @return status -0 Successfully allocated a buffer, -ENOBUFS failed. + */ +static int mxc_allocate_buffers(dma_addr_t bufs_paddr[], void *bufs_vaddr[], + int num_buf, int size) +{ + int i; + + for (i = 0; i < num_buf; i++) { + bufs_vaddr[i] = dma_alloc_coherent(0, size, + &bufs_paddr[i], + GFP_DMA | GFP_KERNEL); + + if (bufs_vaddr[i] == 0) { + mxc_free_buffers(bufs_paddr, bufs_vaddr, i, size); + printk(KERN_ERR "dma_alloc_coherent failed.\n"); + return -ENOBUFS; + } + pr_debug("allocated @ paddr=0x%08X, size=%d.\n", + (u32) bufs_paddr[i], size); + } + + return 0; +} + +/* + * Returns bits per pixel for given pixel format + * + * @param pixelformat V4L2_PIX_FMT_RGB565, V4L2_PIX_FMT_BGR24 or V4L2_PIX_FMT_BGR32 + * + * @return bits per pixel of pixelformat + */ +static u32 fmt_to_bpp(u32 pixelformat) +{ + u32 bpp; + + bpp = 8 * bytes_per_pixel(pixelformat); + return bpp; +} + +static bool format_is_yuv(u32 pixelformat) +{ + switch (pixelformat) { + case V4L2_PIX_FMT_YUV420: + case V4L2_PIX_FMT_UYVY: + case V4L2_PIX_FMT_YUYV: + case V4L2_PIX_FMT_YUV422P: + case V4L2_PIX_FMT_YVU420: + case V4L2_PIX_FMT_YUV444: + case V4L2_PIX_FMT_NV12: + return true; + break; + } + return false; +} + +static u32 bpp_to_fmt(struct fb_info *fbi) +{ + if (fbi->var.nonstd) + return fbi->var.nonstd; + + if (fbi->var.bits_per_pixel == 24) + return V4L2_PIX_FMT_BGR24; + else if (fbi->var.bits_per_pixel == 32) + return V4L2_PIX_FMT_BGR32; + else if (fbi->var.bits_per_pixel == 16) + return V4L2_PIX_FMT_RGB565; + + return 0; +} + +/* + * we are using double buffer for video playback, ipu need make + * sure current buffer should not be the same buffer of next display + * one. + */ +static int select_display_buffer(vout_data *vout, int next_buf) +{ + int ret = 0; + + vout->disp_buf_num = next_buf; + if (ipu_get_cur_buffer_idx(vout->display_ch, IPU_INPUT_BUFFER) + != next_buf) + ret = ipu_select_buffer(vout->display_ch, IPU_INPUT_BUFFER, + next_buf); + else + dev_dbg(&vout->video_dev->dev, + "display buffer not ready for select\n"); + return ret; +} + +static void setup_next_buf_timer(vout_data *vout, int index) +{ + unsigned long timeout; + + /* Setup timer for next buffer */ + /* if timestamp is 0, then default to 30fps */ + if ((vout->v4l2_bufs[index].timestamp.tv_sec == 0) + && (vout->v4l2_bufs[index].timestamp.tv_usec == 0) + && vout->start_jiffies) + timeout = + vout->start_jiffies + vout->frame_count * HZ / 30; + else + timeout = + get_jiffies(&vout->v4l2_bufs[index].timestamp); + + if (jiffies >= timeout) { + dev_dbg(&vout->video_dev->dev, + "warning: timer timeout already expired.\n"); + } + if (mod_timer(&vout->output_timer, timeout)) + dev_dbg(&vout->video_dev->dev, + "warning: timer was already set\n"); + + dev_dbg(&vout->video_dev->dev, + "timer handler next schedule: %lu\n", timeout); +} + +static int finish_previous_frame(vout_data *vout) +{ + struct fb_info *fbi = + registered_fb[vout->output_fb_num[vout->cur_disp_output]]; + mm_segment_t old_fs; + int ret = 0, try = 0; + + /* make sure buf[vout->disp_buf_num] in showing */ + while (ipu_check_buffer_ready(vout->display_ch, + IPU_INPUT_BUFFER, vout->disp_buf_num)) { + if (fbi->fbops->fb_ioctl) { + old_fs = get_fs(); + set_fs(KERNEL_DS); + ret = fbi->fbops->fb_ioctl(fbi, MXCFB_WAIT_FOR_VSYNC, + (unsigned int)NULL); + set_fs(old_fs); + + if ((ret < 0) || (try == 1)) { + /* + * ic_bypass need clear display buffer ready for next update. + * when fb doing blank and unblank, it has chance to go into + * dead loop: fb unblank just after buffer 1 ready selected. + */ + ipu_clear_buffer_ready(vout->display_ch, IPU_INPUT_BUFFER, + vout->disp_buf_num); + } + } + try++; + } + + return ret; +} + +static int show_current_frame(vout_data *vout) +{ + struct fb_info *fbi = + registered_fb[vout->output_fb_num[vout->cur_disp_output]]; + mm_segment_t old_fs; + int ret = 0; + + /* make sure buf[vout->disp_buf_num] begin to show */ + if (ipu_get_cur_buffer_idx(vout->display_ch, IPU_INPUT_BUFFER) + != vout->disp_buf_num) { + /* wait for display frame finish */ + if (fbi->fbops->fb_ioctl) { + old_fs = get_fs(); + set_fs(KERNEL_DS); + ret = fbi->fbops->fb_ioctl(fbi, MXCFB_WAIT_FOR_VSYNC, + (unsigned int)NULL); + set_fs(old_fs); + } + } + + return ret; +} + +static void icbypass_work_func(struct work_struct *work) +{ + vout_data *vout = + container_of(work, vout_data, icbypass_work); + int index, ret; + int last_buf; + unsigned long lock_flags = 0; + + finish_previous_frame(vout); + + spin_lock_irqsave(&g_lock, lock_flags); + + index = dequeue_buf(&vout->ready_q); + if (index == -1) { /* no buffers ready, should never occur */ + dev_err(&vout->video_dev->dev, + "mxc_v4l2out: timer - no queued buffers ready\n"); + goto exit; + } + g_buf_dq_cnt++; + vout->frame_count++; + + vout->ipu_buf[vout->next_rdy_ipu_buf] = index; + ret = ipu_update_channel_buffer(vout->display_ch, IPU_INPUT_BUFFER, + vout->next_rdy_ipu_buf, + vout->v4l2_bufs[index].m.offset); + ret += select_display_buffer(vout, vout->next_rdy_ipu_buf); + if (ret < 0) { + dev_err(&vout->video_dev->dev, + "unable to update buffer %d address rc=%d\n", + vout->next_rdy_ipu_buf, ret); + goto exit; + } + spin_unlock_irqrestore(&g_lock, lock_flags); + show_current_frame(vout); + spin_lock_irqsave(&g_lock, lock_flags); + vout->next_rdy_ipu_buf = !vout->next_rdy_ipu_buf; + + last_buf = vout->ipu_buf[vout->next_done_ipu_buf]; + if (last_buf != -1) { + g_buf_output_cnt++; + vout->v4l2_bufs[last_buf].flags = V4L2_BUF_FLAG_DONE; + queue_buf(&vout->done_q, last_buf); + wake_up_interruptible(&vout->v4l_bufq); + vout->ipu_buf[vout->next_done_ipu_buf] = -1; + vout->next_done_ipu_buf = !vout->next_done_ipu_buf; + } + + if (g_buf_output_cnt > 0) { + /* Setup timer for next buffer */ + index = peek_next_buf(&vout->ready_q); + if (index != -1) + setup_next_buf_timer(vout, index); + else + vout->state = STATE_STREAM_PAUSED; + + if (vout->state == STATE_STREAM_STOPPING) { + if ((vout->ipu_buf[0] == -1) && (vout->ipu_buf[1] == -1)) { + vout->state = STATE_STREAM_OFF; + } + } + } +exit: + spin_unlock_irqrestore(&g_lock, lock_flags); +} + +static int get_cur_fb_blank(vout_data *vout) +{ + struct fb_info *fbi = + registered_fb[vout->output_fb_num[vout->cur_disp_output]]; + mm_segment_t old_fs; + int ret = 0; + + /* Check BG blank first, if BG is blank, FG should be blank too */ + if (vout->display_ch == MEM_FG_SYNC) { + int i, bg_found = 0; + for (i = 0; i < num_registered_fb; i++) { + struct fb_info *bg_fbi; + char *idstr = registered_fb[i]->fix.id; + if (strncmp(idstr, "DISP3 BG", 8) == 0) { + bg_found = 1; + bg_fbi = registered_fb[i]; + if (bg_fbi->fbops->fb_ioctl) { + old_fs = get_fs(); + set_fs(KERNEL_DS); + ret = bg_fbi->fbops->fb_ioctl(bg_fbi, + MXCFB_GET_FB_BLANK, + (unsigned int)(&vout->fb_blank)); + set_fs(old_fs); + } + } + if (bg_found) { + if (vout->fb_blank == FB_BLANK_UNBLANK) + break; + else + return ret; + } + } + } + + if (fbi->fbops->fb_ioctl) { + old_fs = get_fs(); + set_fs(KERNEL_DS); + ret = fbi->fbops->fb_ioctl(fbi, MXCFB_GET_FB_BLANK, + (unsigned int)(&vout->fb_blank)); + set_fs(old_fs); + } + + return ret; +} + +static void mxc_v4l2out_timer_handler(unsigned long arg) +{ + int index, ret; + unsigned long lock_flags = 0; + vout_data *vout = (vout_data *) arg; + static int old_fb_blank = FB_BLANK_UNBLANK; + + spin_lock_irqsave(&g_lock, lock_flags); + + if ((vout->state == STATE_STREAM_STOPPING) + || (vout->state == STATE_STREAM_OFF)) + goto exit0; + + /* + * If timer occurs before IPU h/w is ready, then set the state to + * paused and the timer will be set again when next buffer is queued + * or PP comletes + */ + if (vout->ipu_buf[vout->next_rdy_ipu_buf] != -1) { + dev_dbg(&vout->video_dev->dev, "IPU buffer busy\n"); + vout->state = STATE_STREAM_PAUSED; + goto exit0; + } + + /* VDI need both buffer done before update buffer? */ + if (INTERLACED_CONTENT(vout) && + (vout->ipu_buf[!vout->next_rdy_ipu_buf] != -1)) { + dev_dbg(&vout->video_dev->dev, "IPU buffer busy\n"); + vout->state = STATE_STREAM_PAUSED; + goto exit0; + } + + /* Handle ic bypass mode in work queue */ + if (vout->ic_bypass) { + if (queue_work(vout->v4l_wq, &vout->icbypass_work) == 0) { + dev_err(&vout->video_dev->dev, + "ic bypass work was in queue already!\n "); + vout->state = STATE_STREAM_PAUSED; + } + goto exit0; + } + + get_cur_fb_blank(vout); + if (vout->fb_blank == FB_BLANK_UNBLANK) { + /* if first come back from fb blank, recover correct stack */ + if (old_fb_blank != FB_BLANK_UNBLANK) { + if (vout->next_disp_ipu_buf == 1) + ipu_select_buffer(vout->display_ch, IPU_INPUT_BUFFER, 0); + else + ipu_select_buffer(vout->display_ch, IPU_INPUT_BUFFER, 1); + } + if (ipu_get_cur_buffer_idx(vout->display_ch, IPU_INPUT_BUFFER) + == vout->next_disp_ipu_buf) { + dev_dbg(&vout->video_dev->dev, "IPU disp busy\n"); + index = peek_next_buf(&vout->ready_q); + setup_next_buf_timer(vout, index); + old_fb_blank = vout->fb_blank; + goto exit0; + } + } + old_fb_blank = vout->fb_blank; + + /* Dequeue buffer and pass to IPU */ + index = dequeue_buf(&vout->ready_q); + if (index == -1) { /* no buffers ready, should never occur */ + dev_err(&vout->video_dev->dev, + "mxc_v4l2out: timer - no queued buffers ready\n"); + goto exit0; + } + g_buf_dq_cnt++; + vout->frame_count++; + + /* update next buffer */ + if (LOAD_3FIELDS(vout)) { + int index_n = index; + int index_p = last_index_n; + vout->ipu_buf_p[vout->next_rdy_ipu_buf] = last_index_n; + vout->ipu_buf[vout->next_rdy_ipu_buf] = index; + vout->ipu_buf_n[vout->next_rdy_ipu_buf] = index; + ret = ipu_update_channel_buffer(vout->post_proc_ch, + IPU_INPUT_BUFFER, + vout->next_rdy_ipu_buf, + vout->v4l2_bufs[index].m.offset); + ret += ipu_update_channel_buffer(MEM_VDI_PRP_VF_MEM_P, + IPU_INPUT_BUFFER, + vout->next_rdy_ipu_buf, + vout->v4l2_bufs[index_p].m.offset + vout->bytesperline); + ret += ipu_update_channel_buffer(MEM_VDI_PRP_VF_MEM_N, + IPU_INPUT_BUFFER, + vout->next_rdy_ipu_buf, + vout->v4l2_bufs[index_n].m.offset + vout->bytesperline); + last_index_n = index; + } else { + vout->ipu_buf[vout->next_rdy_ipu_buf] = index; + if (vout->pp_split) { + vout->ipu_buf[!vout->next_rdy_ipu_buf] = index; + /* always left stripe */ + ret = ipu_update_channel_buffer(vout->post_proc_ch, + IPU_INPUT_BUFFER, + 0,/* vout->next_rdy_ipu_buf,*/ + (vout->v4l2_bufs[index].m.offset) + + vout->pp_left_stripe.input_column + + vout->pp_up_stripe.input_column * vout->bytesperline); + + /* the U/V offset has to be updated inside of IDMAC */ + /* according to stripe offset */ + ret += ipu_update_channel_offset(vout->post_proc_ch, + IPU_INPUT_BUFFER, + vout->v2f.fmt.pix.pixelformat, + vout->v2f.fmt.pix.width, + vout->v2f.fmt.pix.height, + vout->bytesperline, + vout->offset.u_offset, + vout->offset.v_offset, + vout->pp_up_stripe.input_column, + vout->pp_left_stripe.input_column); + } else + ret = ipu_update_channel_buffer(vout->post_proc_ch, + IPU_INPUT_BUFFER, + vout->next_rdy_ipu_buf, + vout->v4l2_bufs[index].m.offset); + } + + if (ret < 0) { + dev_err(&vout->video_dev->dev, + "unable to update buffer %d address rc=%d\n", + vout->next_rdy_ipu_buf, ret); + goto exit0; + } + + /* set next buffer ready */ + if (LOAD_3FIELDS(vout)) + ret = ipu_select_multi_vdi_buffer(vout->next_rdy_ipu_buf); + else + ret = ipu_select_buffer(vout->post_proc_ch, IPU_INPUT_BUFFER, + vout->next_rdy_ipu_buf); + if (ret < 0) { + dev_err(&vout->video_dev->dev, + "unable to set IPU buffer ready\n"); + goto exit0; + } + + /* Split mode use buf 0 only, no need swith buf */ + if (!vout->pp_split) + vout->next_rdy_ipu_buf = !vout->next_rdy_ipu_buf; + + /* Always assume display in double buffers */ + vout->next_disp_ipu_buf = !vout->next_disp_ipu_buf; + + /* Setup timer for next buffer */ + index = peek_next_buf(&vout->ready_q); + if (index != -1) + setup_next_buf_timer(vout, index); + else + vout->state = STATE_STREAM_PAUSED; + + if (vout->state == STATE_STREAM_STOPPING) { + if ((vout->ipu_buf[0] == -1) && (vout->ipu_buf[1] == -1)) { + vout->state = STATE_STREAM_OFF; + } + } + + spin_unlock_irqrestore(&g_lock, lock_flags); + + return; + +exit0: + spin_unlock_irqrestore(&g_lock, lock_flags); +} + +static irqreturn_t mxc_v4l2out_work_irq_handler(int irq, void *dev_id) +{ + int last_buf; + int index; + unsigned long lock_flags = 0; + vout_data *vout = dev_id; + int pp_out_buf_left_right = 0; + int disp_buf_num = 0; + int disp_buf_num_next = 1; + int local_buffer = 0; + int pp_out_buf_offset = 0; + int pp_out_buf_up_down = 0; + int release_buffer = 0; + u32 eba_offset = 0; + u32 vertical_offset = 0; + u16 x_pos; + u16 y_pos; + int ret = -1; + + spin_lock_irqsave(&g_lock, lock_flags); + + g_irq_cnt++; + + /* Process previous buffer */ + if (LOAD_3FIELDS(vout)) + last_buf = vout->ipu_buf_p[vout->next_done_ipu_buf]; + else + last_buf = vout->ipu_buf[vout->next_done_ipu_buf]; + + if (last_buf != -1) { + /* If IC split mode on, update output buffer number */ + if (vout->pp_split) { + pp_out_buf_up_down = vout->pp_split_buf_num & 1;/* left/right stripe */ + pp_out_buf_left_right = (vout->pp_split_buf_num >> 1) & 1; /* up/down */ + local_buffer = (vout->pp_split == 1) ? pp_out_buf_up_down : + pp_out_buf_left_right; + disp_buf_num = vout->pp_split_buf_num >> 2; + disp_buf_num_next = + ((vout->pp_split_buf_num + (vout->pp_split << 0x1)) & 7) >> 2; + if ((!pp_out_buf_left_right) || + ((!pp_out_buf_up_down) && (vout->pp_split == 1))) { + if (vout->pp_split == 1) { + eba_offset = ((pp_out_buf_left_right + pp_out_buf_up_down) & 1) ? + vout->pp_right_stripe.input_column : + vout->pp_left_stripe.input_column; + vertical_offset = pp_out_buf_up_down ? + vout->pp_up_stripe.input_column : + vout->pp_down_stripe.input_column; + + } else { + eba_offset = pp_out_buf_left_right ? + vout->pp_left_stripe.input_column : + vout->pp_right_stripe.input_column; + vertical_offset = pp_out_buf_left_right ? + vout->pp_up_stripe.input_column : + vout->pp_down_stripe.input_column; + } + + ret = ipu_update_channel_buffer(vout->post_proc_ch, + IPU_INPUT_BUFFER, + (1 - local_buffer), + (vout->v4l2_bufs[vout->ipu_buf[disp_buf_num]].m.offset) + + eba_offset + vertical_offset * vout->bytesperline); + ret += ipu_update_channel_offset(vout->post_proc_ch, + IPU_INPUT_BUFFER, + vout->v2f.fmt.pix.pixelformat, + vout->v2f.fmt.pix.width, + vout->v2f.fmt.pix.height, + vout->bytesperline, + vout->offset.u_offset, + vout->offset.v_offset, + vertical_offset, + eba_offset); + + /* select right stripe */ + ret += ipu_select_buffer(vout->post_proc_ch, IPU_INPUT_BUFFER, + (1 - local_buffer)); + if (ret < 0) + dev_err(&vout->video_dev->dev, + "unable to set IPU buffer ready\n"); + } + + /* offset for next buffer's EBA */ + eba_offset = 0; + if (vout->pp_split == 1) { + pp_out_buf_offset = ((vout->pp_split_buf_num >> 1) & 1) ? + vout->pp_left_stripe.output_column : + vout->pp_right_stripe.output_column; + + eba_offset = ((vout->pp_split_buf_num & 1) ? + vout->pp_down_stripe.output_column : + vout->pp_up_stripe.output_column); + + } else { + pp_out_buf_offset = ((vout->pp_split_buf_num >> 1) & 1) ? + vout->pp_right_stripe.output_column : + vout->pp_left_stripe.output_column; + eba_offset = ((vout->pp_split_buf_num >> 1) & 1) ? + vout->pp_down_stripe.output_column : + vout->pp_up_stripe.output_column; + } + + if (vout->cur_disp_output == 5) { + x_pos = (vout->crop_current.left / 8) * 8; + y_pos = vout->crop_current.top; + eba_offset += (vout->xres * y_pos + x_pos) * vout->bpp / 8; + } + + + /* next buffer update */ + eba_offset = vout->display_bufs[disp_buf_num_next] + + pp_out_buf_offset + eba_offset; + + ipu_update_channel_buffer(vout->post_proc_ch, IPU_OUTPUT_BUFFER, + local_buffer, eba_offset); + + /* next buffer ready */ + ret = ipu_select_buffer(vout->post_proc_ch, IPU_OUTPUT_BUFFER, local_buffer); + + /* next stripe_buffer index 0..7 */ + vout->pp_split_buf_num = (vout->pp_split_buf_num + vout->pp_split) & 0x7; + } else { + disp_buf_num = vout->next_done_ipu_buf; + ret += ipu_select_buffer(vout->display_input_ch, IPU_OUTPUT_BUFFER, + vout->next_done_ipu_buf); + } + + /* release buffer. For split mode: if second stripe is done */ + release_buffer = vout->pp_split ? (!(vout->pp_split_buf_num & 0x3)) : 1; + if (release_buffer) { + if (vout->fb_blank == FB_BLANK_UNBLANK) + select_display_buffer(vout, disp_buf_num); + g_buf_output_cnt++; + vout->v4l2_bufs[last_buf].flags = V4L2_BUF_FLAG_DONE; + queue_buf(&vout->done_q, last_buf); + wake_up_interruptible(&vout->v4l_bufq); + vout->ipu_buf[vout->next_done_ipu_buf] = -1; + if (LOAD_3FIELDS(vout)) { + vout->ipu_buf_p[vout->next_done_ipu_buf] = -1; + vout->ipu_buf_n[vout->next_done_ipu_buf] = -1; + } + /* split mode use buf 0 only, no need switch buf */ + if (!vout->pp_split) + vout->next_done_ipu_buf = !vout->next_done_ipu_buf; + } + } /* end of last_buf != -1 */ + + index = peek_next_buf(&vout->ready_q); + if (vout->state == STATE_STREAM_STOPPING) { + if ((vout->ipu_buf[0] == -1) && (vout->ipu_buf[1] == -1)) { + vout->state = STATE_STREAM_OFF; + } + } else if ((vout->state == STATE_STREAM_PAUSED) + && (index != -1)) { + /* Setup timer for next buffer, when stream has been paused */ + pr_debug("next index %d\n", index); + setup_next_buf_timer(vout, index); + vout->state = STATE_STREAM_ON; + } + + spin_unlock_irqrestore(&g_lock, lock_flags); + + return IRQ_HANDLED; +} + +/*! + * Initialize VDI channels + * + * @param vout structure vout_data * + * + * @return status 0 Success + */ +static int init_VDI_channel(vout_data *vout, ipu_channel_params_t params) +{ + struct device *dev = &vout->video_dev->dev; + + if (ipu_init_channel(MEM_VDI_PRP_VF_MEM, ¶ms) != 0) { + dev_dbg(dev, "Error initializing VDI current channel\n"); + return -EINVAL; + } + if (LOAD_3FIELDS(vout)) { + if (ipu_init_channel(MEM_VDI_PRP_VF_MEM_P, ¶ms) != 0) { + dev_err(dev, "Error initializing VDI previous channel\n"); + return -EINVAL; + } + if (ipu_init_channel(MEM_VDI_PRP_VF_MEM_N, ¶ms) != 0) { + dev_err(dev, "Error initializing VDI next channel\n"); + return -EINVAL; + } + } + return 0; +} + +/*! + * Initialize VDI channel buffers + * + * @param vout structure vout_data * + * + * @return status 0 Success + */ +static int init_VDI_in_channel_buffer(vout_data *vout, uint32_t in_pixel_fmt, + uint16_t in_width, uint16_t in_height, + uint32_t stride, + uint32_t u_offset, uint32_t v_offset) +{ + struct device *dev = &vout->video_dev->dev; + + if (ipu_init_channel_buffer(MEM_VDI_PRP_VF_MEM, IPU_INPUT_BUFFER, + in_pixel_fmt, in_width, in_height, stride, + IPU_ROTATE_NONE, + vout->v4l2_bufs[vout->ipu_buf[0]].m.offset, + vout->v4l2_bufs[vout->ipu_buf[0]].m.offset, + u_offset, v_offset) != 0) { + dev_err(dev, "Error initializing VDI current input buffer\n"); + return -EINVAL; + } + if (LOAD_3FIELDS(vout)) { + if (ipu_init_channel_buffer(MEM_VDI_PRP_VF_MEM_P, + IPU_INPUT_BUFFER, + in_pixel_fmt, in_width, in_height, + stride, IPU_ROTATE_NONE, + vout->v4l2_bufs[vout->ipu_buf_p[0]].m.offset+vout->bytesperline, + vout->v4l2_bufs[vout->ipu_buf_p[0]].m.offset+vout->bytesperline, + u_offset, v_offset) != 0) { + dev_err(dev, "Error initializing VDI previous input buffer\n"); + return -EINVAL; + } + if (ipu_init_channel_buffer(MEM_VDI_PRP_VF_MEM_N, + IPU_INPUT_BUFFER, + in_pixel_fmt, in_width, in_height, + stride, IPU_ROTATE_NONE, + vout->v4l2_bufs[vout->ipu_buf_n[0]].m.offset+vout->bytesperline, + vout->v4l2_bufs[vout->ipu_buf_n[0]].m.offset+vout->bytesperline, + u_offset, v_offset) != 0) { + dev_err(dev, "Error initializing VDI next input buffer\n"); + return -EINVAL; + } + } + return 0; +} + +/*! + * Initialize VDI path + * + * @param vout structure vout_data * + * + * @return status 0 Success + */ +static int init_VDI(ipu_channel_params_t params, vout_data *vout, + struct device *dev, struct fb_info *fbi, + u16 out_width, u16 out_height) +{ + params.mem_prp_vf_mem.in_width = vout->v2f.fmt.pix.width; + params.mem_prp_vf_mem.in_height = vout->v2f.fmt.pix.height; + params.mem_prp_vf_mem.motion_sel = vout->motion_sel; + params.mem_prp_vf_mem.field_fmt = vout->field_fmt; + params.mem_prp_vf_mem.in_pixel_fmt = vout->v2f.fmt.pix.pixelformat; + params.mem_prp_vf_mem.out_width = out_width; + params.mem_prp_vf_mem.out_height = out_height; + params.mem_prp_vf_mem.out_pixel_fmt = bpp_to_fmt(fbi); + + if (init_VDI_channel(vout, params) != 0) { + dev_err(dev, "Error init_VDI_channel channel\n"); + return -EINVAL; + } + + if (init_VDI_in_channel_buffer(vout, + params.mem_prp_vf_mem.in_pixel_fmt, + params.mem_prp_vf_mem.in_width, + params.mem_prp_vf_mem.in_height, + bytes_per_pixel(params.mem_prp_vf_mem. + in_pixel_fmt), + vout->offset.u_offset, + vout->offset.v_offset) != 0) { + return -EINVAL; + } + + if (!ipu_can_rotate_in_place(vout->rotate)) { + if (vout->rot_pp_bufs[0]) { + mxc_free_buffers(vout->rot_pp_bufs, + vout->rot_pp_bufs_vaddr, 2, + vout->display_buf_size); + } + if (mxc_allocate_buffers + (vout->rot_pp_bufs, vout->rot_pp_bufs_vaddr, 2, + vout->display_buf_size) < 0) { + return -ENOBUFS; + } + + if (ipu_init_channel_buffer(vout->post_proc_ch, + IPU_OUTPUT_BUFFER, + params.mem_prp_vf_mem. + out_pixel_fmt, out_width, + out_height, out_width, + IPU_ROTATE_NONE, + vout->rot_pp_bufs[0], + vout->rot_pp_bufs[1], 0, 0) != 0) { + dev_err(dev, "Error initializing PRP output buffer\n"); + return -EINVAL; + } + + if (ipu_init_channel(MEM_ROT_VF_MEM, NULL) != 0) { + dev_err(dev, "Error initializing PP ROT channel\n"); + return -EINVAL; + } + if (ipu_init_channel_buffer(MEM_ROT_VF_MEM, + IPU_INPUT_BUFFER, + params.mem_prp_vf_mem. + out_pixel_fmt, out_width, + out_height, out_width, + vout->rotate, + vout->rot_pp_bufs[0], + vout->rot_pp_bufs[1], 0, 0) != 0) { + dev_err(dev, + "Error initializing PP ROT input buffer\n"); + return -EINVAL; + } + + /* swap width and height */ + if (vout->rotate >= IPU_ROTATE_90_RIGHT) { + out_width = vout->crop_current.width; + out_height = vout->crop_current.height; + } + + if (ipu_init_channel_buffer(MEM_ROT_VF_MEM, + IPU_OUTPUT_BUFFER, + params.mem_prp_vf_mem. + out_pixel_fmt, out_width, + out_height, out_width, + IPU_ROTATE_NONE, + vout->display_bufs[0], + vout->display_bufs[1], 0, 0) != 0) { + dev_err(dev, + "Error initializing PP-VDI output buffer\n"); + return -EINVAL; + } + + if (ipu_link_channels(vout->post_proc_ch, MEM_ROT_VF_MEM) < 0) + return -EINVAL; + + vout->display_input_ch = MEM_ROT_VF_MEM; + ipu_enable_channel(MEM_ROT_VF_MEM); + ipu_select_buffer(MEM_ROT_VF_MEM, IPU_OUTPUT_BUFFER, 0); + ipu_select_buffer(MEM_ROT_VF_MEM, IPU_OUTPUT_BUFFER, 1); + } else { + if (ipu_init_channel_buffer(vout->post_proc_ch, + IPU_OUTPUT_BUFFER, + params.mem_prp_vf_mem. + out_pixel_fmt, out_width, + out_height, out_width, + vout->rotate, + vout->display_bufs[0], + vout->display_bufs[1], 0, 0) != 0) { + dev_err(dev, + "Error initializing PP-VDI output buffer\n"); + return -EINVAL; + } + } + return 0; +} + +/*! + * Initialize PP path + * + * @param params structure ipu_channel_params_t + * + * @param vout structure vout_data * + * + * @return status 0 Success + */ +static int init_PP(ipu_channel_params_t *params, vout_data *vout, + struct device *dev, struct fb_info *fbi, + u16 out_width, u16 out_height) +{ + u16 in_width, out_stride; /* stride of output channel */ + u32 eba_offset; + u16 x_pos; + u16 y_pos; + dma_addr_t phy_addr0; + dma_addr_t phy_addr1; + + eba_offset = 0; + x_pos = 0; + y_pos = 0; + + params->mem_pp_mem.out_pixel_fmt = bpp_to_fmt(fbi); + + if (vout->cur_disp_output == 5) { + x_pos = (vout->crop_current.left / 8) * 8; + y_pos = vout->crop_current.top; + eba_offset = (vout->xres*y_pos + x_pos) * + bytes_per_pixel(params->mem_pp_mem.out_pixel_fmt); + } + + vout->bpp = fmt_to_bpp(params->mem_pp_mem.out_pixel_fmt); + out_stride = vout->xres * + bytes_per_pixel(params->mem_pp_mem.out_pixel_fmt); + in_width = params->mem_pp_mem.in_width = vout->v2f.fmt.pix.width; + params->mem_pp_mem.in_height = vout->v2f.fmt.pix.height; + params->mem_pp_mem.in_pixel_fmt = vout->v2f.fmt.pix.pixelformat; + params->mem_pp_mem.out_width = out_width; + params->mem_pp_mem.out_height = out_height; + params->mem_pp_mem.outh_resize_ratio = 0; /* 0 means unused */ + params->mem_pp_mem.outv_resize_ratio = 0; /* 0 means unused */ + /* split IC by two stripes, the by pass is impossible*/ + if (vout->pp_split) { + vout->pp_left_stripe.input_column = 0; + vout->pp_left_stripe.output_column = 0; + vout->pp_right_stripe.input_column = 0; + vout->pp_right_stripe.output_column = 0; + vout->pp_up_stripe.input_column = 0; + vout->pp_up_stripe.output_column = 0; + vout->pp_down_stripe.input_column = 0; + vout->pp_down_stripe.output_column = 0; + if (vout->pp_split != 3) { + ipu_calc_stripes_sizes( + params->mem_pp_mem.in_width, /* input frame width;>1 */ + params->mem_pp_mem.out_width, /* output frame width; >1 */ + ipu_ic_out_max_width_size, + (((unsigned long long)1) << 32), /* 32bit for fractional*/ + 1, /* equal stripes */ + params->mem_pp_mem.in_pixel_fmt, + params->mem_pp_mem.out_pixel_fmt, + &(vout->pp_left_stripe), + &(vout->pp_right_stripe)); + + vout->pp_left_stripe.input_column = vout->pp_left_stripe.input_column * + fmt_to_bpp(vout->v2f.fmt.pix.pixelformat) / 8; + vout->pp_left_stripe.output_column = vout->pp_left_stripe.output_column * + fmt_to_bpp(params->mem_pp_mem.out_pixel_fmt) / 8; + vout->pp_right_stripe.input_column = vout->pp_right_stripe.input_column * + fmt_to_bpp(vout->v2f.fmt.pix.pixelformat) / 8; + vout->pp_right_stripe.output_column = vout->pp_right_stripe.output_column * + fmt_to_bpp(params->mem_pp_mem.out_pixel_fmt) / 8; + + + /* updare parameters */ + params->mem_pp_mem.in_width = vout->pp_left_stripe.input_width; + params->mem_pp_mem.out_width = vout->pp_left_stripe.output_width; + out_width = vout->pp_left_stripe.output_width; + /* for using in ic_init*/ + params->mem_pp_mem.outh_resize_ratio = vout->pp_left_stripe.irr; + } + if (vout->pp_split != 2) { + ipu_calc_stripes_sizes( + params->mem_pp_mem.in_height, /* input frame width;>1 */ + params->mem_pp_mem.out_height, /* output frame width; >1 */ + ipu_ic_out_max_height_size, + (((unsigned long long)1) << 32),/* 32bit for fractional */ + 1, /* equal stripes */ + params->mem_pp_mem.in_pixel_fmt, + params->mem_pp_mem.out_pixel_fmt, + &(vout->pp_up_stripe), + &(vout->pp_down_stripe)); + vout->pp_down_stripe.output_column = vout->pp_down_stripe.output_column * out_stride; + vout->pp_up_stripe.output_column = vout->pp_up_stripe.output_column * out_stride; + params->mem_pp_mem.outv_resize_ratio = vout->pp_up_stripe.irr; + params->mem_pp_mem.in_height = vout->pp_up_stripe.input_width;/*height*/ + out_height = vout->pp_up_stripe.output_width;/*height*/ + if (vout->pp_split == 3) + vout->pp_split = 2;/*2 vertical stripe as two horizontal stripes */ + } + vout->pp_split_buf_num = 0; + } + + if (ipu_init_channel(vout->post_proc_ch, params) != 0) { + dev_err(dev, "Error initializing PP channel\n"); + return -EINVAL; + } + + /* always enable double buffer */ + phy_addr0 = vout->v4l2_bufs[vout->ipu_buf[0]].m.offset; + if (vout->ipu_buf[1] == -1) + phy_addr1 = phy_addr0; + else + phy_addr1 = vout->v4l2_bufs[vout->ipu_buf[1]].m.offset; + if (ipu_init_channel_buffer(vout->post_proc_ch, + IPU_INPUT_BUFFER, + params->mem_pp_mem.in_pixel_fmt, + params->mem_pp_mem.in_width, + params->mem_pp_mem.in_height, + vout->v2f.fmt.pix.bytesperline / + bytes_per_pixel(params->mem_pp_mem. + in_pixel_fmt), + IPU_ROTATE_NONE, + phy_addr0, + phy_addr1, + vout->offset.u_offset, + vout->offset.v_offset) != 0) { + dev_err(dev, "Error initializing PP input buffer\n"); + return -EINVAL; + } + + if (!ipu_can_rotate_in_place(vout->rotate)) { + if (vout->rot_pp_bufs[0]) { + mxc_free_buffers(vout->rot_pp_bufs, + vout->rot_pp_bufs_vaddr, 2, + vout->display_buf_size); + } + if (mxc_allocate_buffers + (vout->rot_pp_bufs, vout->rot_pp_bufs_vaddr, 2, + vout->display_buf_size) < 0) { + return -ENOBUFS; + } + + if (ipu_init_channel_buffer(vout->post_proc_ch, + IPU_OUTPUT_BUFFER, + params->mem_pp_mem. + out_pixel_fmt, out_width, + out_height, out_stride, + IPU_ROTATE_NONE, + vout->rot_pp_bufs[0] + eba_offset, + vout->rot_pp_bufs[1] + eba_offset, 0, 0) != 0) { + dev_err(dev, "Error initializing PP output buffer\n"); + return -EINVAL; + } + + if (ipu_init_channel(MEM_ROT_PP_MEM, NULL) != 0) { + dev_err(dev, "Error initializing PP ROT channel\n"); + return -EINVAL; + } + if (ipu_init_channel_buffer(MEM_ROT_PP_MEM, + IPU_INPUT_BUFFER, + params->mem_pp_mem. + out_pixel_fmt, out_width, + out_height, out_stride, + vout->rotate, + vout->rot_pp_bufs[0], + vout->rot_pp_bufs[1], 0, 0) != 0) { + dev_err(dev, + "Error initializing PP ROT input buffer\n"); + return -EINVAL; + } + + /* swap width and height */ + if (vout->rotate >= IPU_ROTATE_90_RIGHT) { + out_width = vout->crop_current.width; + out_height = vout->crop_current.height; + } + + if (ipu_init_channel_buffer(MEM_ROT_PP_MEM, + IPU_OUTPUT_BUFFER, + params->mem_pp_mem. + out_pixel_fmt, out_width, + out_height, out_stride, + IPU_ROTATE_NONE, + vout->display_bufs[0] + eba_offset, + vout->display_bufs[1] + eba_offset, 0, 0) != 0) { + dev_err(dev, "Error initializing PP output buffer\n"); + return -EINVAL; + } + + if (ipu_link_channels(vout->post_proc_ch, MEM_ROT_PP_MEM) < 0) + return -EINVAL; + + vout->display_input_ch = MEM_ROT_PP_MEM; + ipu_enable_channel(MEM_ROT_PP_MEM); + ipu_select_buffer(MEM_ROT_PP_MEM, IPU_OUTPUT_BUFFER, 0); + ipu_select_buffer(MEM_ROT_PP_MEM, IPU_OUTPUT_BUFFER, 1); + } else { + if (ipu_init_channel_buffer(vout->post_proc_ch, + IPU_OUTPUT_BUFFER, + params->mem_pp_mem. + out_pixel_fmt, out_width, + out_height, out_stride, + vout->rotate, + vout->display_bufs[0] + eba_offset, + vout->display_bufs[1] + eba_offset, 0, 0) != 0) { + dev_err(dev, "Error initializing PP output buffer\n"); + return -EINVAL; + } + } + + /* fix EBAs for IDMAC channels */ + if (vout->pp_split) { + ipu_update_channel_buffer(vout->post_proc_ch, IPU_INPUT_BUFFER, + 0, + vout->v4l2_bufs[vout->ipu_buf[0]].m.offset + + vout->pp_left_stripe.input_column + + vout->pp_up_stripe.input_column * vout->bytesperline); + + + ipu_update_channel_buffer(vout->post_proc_ch, IPU_INPUT_BUFFER, + 1, + vout->v4l2_bufs[vout->ipu_buf[0]].m.offset + + vout->pp_right_stripe.input_column + + vout->pp_up_stripe.input_column * vout->bytesperline); + + ipu_update_channel_buffer(vout->post_proc_ch, IPU_OUTPUT_BUFFER, + 0, + vout->display_bufs[0] + eba_offset + + vout->pp_left_stripe.output_column + + vout->pp_up_stripe.output_column); + + ipu_update_channel_buffer(vout->post_proc_ch, IPU_OUTPUT_BUFFER, + 1, + vout->display_bufs[0] + eba_offset + + vout->pp_right_stripe.output_column + + vout->pp_up_stripe.output_column); + } + + return 0; +} + +/*! + * Start the output stream + * + * @param vout structure vout_data * + * + * @return status 0 Success + */ +static int mxc_v4l2out_streamon(vout_data *vout) +{ + struct device *dev = &vout->video_dev->dev; + ipu_channel_params_t params; + struct mxcfb_pos fb_pos; + struct fb_var_screeninfo fbvar; + struct fb_info *fbi = + registered_fb[vout->output_fb_num[vout->cur_disp_output]]; + u16 out_width; + u16 out_height; + mm_segment_t old_fs; + unsigned int ipu_ch = CHAN_NONE; + unsigned int fb_fmt; + int rc = 0; + + dev_dbg(dev, "mxc_v4l2out_streamon: field format=%d\n", + vout->field_fmt); + + if (!vout) + return -EINVAL; + + if (vout->state != STATE_STREAM_OFF) + return -EBUSY; + + if (queue_size(&vout->ready_q) < 2) { + dev_err(dev, "2 buffers not been queued yet!\n"); + return -EINVAL; + } + + if ((vout->field_fmt == V4L2_FIELD_BOTTOM) || (vout->field_fmt == V4L2_FIELD_TOP)) { + dev_err(dev, "4 queued buffers need, not supported yet!\n"); + return -EINVAL; + } + + /* + * params init, check whether operation exceed the IC limitation: + * whether split mode used ( ipu version >= ipuv3 only) + */ + g_irq_cnt = g_buf_output_cnt = g_buf_q_cnt = g_buf_dq_cnt = 0; + out_width = vout->crop_current.width; + out_height = vout->crop_current.height; + vout->disp_buf_num = 0; + vout->next_done_ipu_buf = 0; + vout->next_rdy_ipu_buf = vout->next_disp_ipu_buf = 1; + vout->pp_split = 0; + ipu_ic_out_max_height_size = 1024; +#ifdef CONFIG_MXC_IPU_V1 + if (cpu_is_mx35()) + ipu_ic_out_max_width_size = 800; + else + ipu_ic_out_max_width_size = 720; +#else + ipu_ic_out_max_width_size = 1024; +#endif + if ((out_width > ipu_ic_out_max_width_size) || + (out_height > ipu_ic_out_max_height_size)) + vout->pp_split = 4; + if (!INTERLACED_CONTENT(vout)) { + vout->ipu_buf[0] = dequeue_buf(&vout->ready_q); + /* split IC by two stripes, the by pass is impossible*/ + if ((out_width != vout->v2f.fmt.pix.width || + out_height != vout->v2f.fmt.pix.height) && + vout->pp_split) { + vout->next_done_ipu_buf = vout->next_rdy_ipu_buf = 0; + vout->ipu_buf[1] = vout->ipu_buf[0]; + vout->frame_count = 1; + if ((out_width > ipu_ic_out_max_width_size) && + (out_height > ipu_ic_out_max_height_size)) + vout->pp_split = 1; /*4 stripes*/ + else if (!(out_height > ipu_ic_out_max_height_size)) + vout->pp_split = 2; /*two horizontal stripes */ + else + vout->pp_split = 3; /*2 vertical stripes*/ + } else { + vout->ipu_buf[1] = -1; + vout->frame_count = 1; + } + } else if (!LOAD_3FIELDS(vout)) { + vout->ipu_buf[0] = dequeue_buf(&vout->ready_q); + vout->ipu_buf[1] = -1; + vout->frame_count = 1; + } else { + vout->ipu_buf_p[0] = dequeue_buf(&vout->ready_q); + vout->ipu_buf[0] = dequeue_buf(&vout->ready_q); + vout->ipu_buf_n[0] = vout->ipu_buf[0]; + vout->ipu_buf_p[1] = -1; + vout->ipu_buf[1] = -1; + vout->ipu_buf_n[1] = -1; + last_index_n = vout->ipu_buf_n[0]; + vout->frame_count = 2; + } + + /* + * Bypass IC if resizing and rotation are not needed + * Meanwhile, apply IC bypass to SDC only + */ + fbvar = fbi->var; + vout->xres = fbvar.xres; + vout->yres = fbvar.yres; + + if (vout->cur_disp_output == 3 || vout->cur_disp_output == 5) { + fb_fmt = vout->v2f.fmt.pix.pixelformat; + + /* DC channel can not use CSC */ + if (vout->cur_disp_output == 5) { + if (fbi->fbops->fb_ioctl) { + old_fs = get_fs(); + set_fs(KERNEL_DS); + fbi->fbops->fb_ioctl(fbi, MXCFB_GET_DIFMT, + (unsigned long)&fb_fmt); + set_fs(old_fs); + } + } + + fbvar.bits_per_pixel = 16; + if (format_is_yuv(fb_fmt)) + fbvar.nonstd = IPU_PIX_FMT_UYVY; + else + fbvar.nonstd = 0; + if (vout->cur_disp_output == 3) { + fbvar.xres = out_width; + fbvar.yres = out_height; + vout->xres = fbvar.xres; + vout->yres = fbvar.yres; + } + + fbvar.xres_virtual = fbvar.xres; + fbvar.yres_virtual = fbvar.yres * 2; + } + + if (out_width == vout->v2f.fmt.pix.width && + out_height == vout->v2f.fmt.pix.height && + vout->xres == out_width && + vout->yres == out_height && + ipu_can_rotate_in_place(vout->rotate) && + (vout->bytesperline == + bytes_per_pixel(vout->v2f.fmt.pix.pixelformat) * out_width) && + !INTERLACED_CONTENT(vout)) { + vout->ic_bypass = 1; + } else { + vout->ic_bypass = 0; + } + +#ifdef CONFIG_MXC_IPU_V1 + /* IPUv1 needs IC to do CSC */ + if (format_is_yuv(vout->v2f.fmt.pix.pixelformat) != + format_is_yuv(bpp_to_fmt(fbi))) +#else + /* DC channel needs IC to do CSC */ + if ((format_is_yuv(vout->v2f.fmt.pix.pixelformat) != + format_is_yuv(fb_fmt)) && + (vout->cur_disp_output == 5)) + vout->ic_bypass = 0; +#endif + + if (fbi->fbops->fb_ioctl) { + old_fs = get_fs(); + set_fs(KERNEL_DS); + fbi->fbops->fb_ioctl(fbi, MXCFB_GET_FB_IPU_CHAN, + (unsigned long)&ipu_ch); + set_fs(old_fs); + } + + if (ipu_ch == CHAN_NONE) { + dev_err(dev, "Can not get display ipu channel\n"); + return -EINVAL; + } + + vout->display_ch = ipu_ch; + + if (vout->ic_bypass) { + dev_info(dev, "Bypassing IC\n"); + vout->pp_split = 0; + switch (vout->v2f.fmt.pix.pixelformat) { + case V4L2_PIX_FMT_YUV420: + case V4L2_PIX_FMT_YVU420: + case V4L2_PIX_FMT_NV12: + fbvar.bits_per_pixel = 12; + break; + case V4L2_PIX_FMT_YUV422P: + fbvar.bits_per_pixel = 16; + break; + default: + fbvar.bits_per_pixel = 8* + bytes_per_pixel(vout->v2f.fmt.pix.pixelformat); + } + fbvar.nonstd = vout->v2f.fmt.pix.pixelformat; + } + + /* Init display channel through fb API */ + fbvar.yoffset = 0; + fbvar.activate |= FB_ACTIVATE_FORCE; + acquire_console_sem(); + fbi->flags |= FBINFO_MISC_USEREVENT; + fb_set_var(fbi, &fbvar); + fbi->flags &= ~FBINFO_MISC_USEREVENT; + release_console_sem(); + + if (fbi->fbops->fb_ioctl && vout->display_ch == MEM_FG_SYNC) { + fb_pos.x = vout->crop_current.left; + fb_pos.y = vout->crop_current.top; + old_fs = get_fs(); + set_fs(KERNEL_DS); + fbi->fbops->fb_ioctl(fbi, MXCFB_SET_OVERLAY_POS, + (unsigned long)&fb_pos); + set_fs(old_fs); + } + + vout->display_bufs[1] = fbi->fix.smem_start; + vout->display_bufs[0] = fbi->fix.smem_start + + (fbi->fix.line_length * vout->yres); + vout->display_buf_size = vout->xres * + vout->yres * fbi->var.bits_per_pixel / 8; + + /* fill black color for init fb, we assume fb has double buffer*/ + if (format_is_yuv(vout->v2f.fmt.pix.pixelformat)) { + int i; + + if ((vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_UYVY) || + (vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) || + (!vout->ic_bypass)) { + short * tmp = (short *) fbi->screen_base; + short color; + if (vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) + color = 0x8000; + else + color = 0x80; + for (i = 0; i < (fbi->fix.line_length * fbi->var.yres_virtual)/2; + i++, tmp++) + *tmp = color; + } else if ((vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YUV420) || + (vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YVU420) || + (vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_NV12)) { + char * base = (char *)fbi->screen_base; + int j, screen_size = fbi->var.xres * fbi->var.yres; + + for (j = 0; j < 2; j++) { + memset(base, 0, screen_size); + base += screen_size; + for (i = 0; i < screen_size/2; i++, base++) + *base = 0x80; + } + } else if (vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YUV422P) { + char * base = (char *)fbi->screen_base; + int j, screen_size = fbi->var.xres * fbi->var.yres; + + for (j = 0; j < 2; j++) { + memset(base, 0, screen_size); + base += screen_size; + for (i = 0; i < screen_size; i++, base++) + *base = 0x80; + } + } + } else + memset(fbi->screen_base, 0x0, + fbi->fix.line_length * fbi->var.yres_virtual); + + if (INTERLACED_CONTENT(vout)) + vout->post_proc_ch = MEM_VDI_PRP_VF_MEM; + else if (!vout->ic_bypass) + vout->post_proc_ch = MEM_PP_MEM; + + /* Init IC channel */ + if (!vout->ic_bypass) { + if (vout->rotate >= IPU_ROTATE_90_RIGHT) { + out_width = vout->crop_current.height; + out_height = vout->crop_current.width; + } + vout->display_input_ch = vout->post_proc_ch; + memset(¶ms, 0, sizeof(params)); + if (INTERLACED_CONTENT(vout)) { + if (vout->pp_split) { + dev_err(&vout->video_dev->dev, "VDI split has not supported yet.\n"); + return -1; + } else + rc = init_VDI(params, vout, dev, fbi, out_width, out_height); + } else { + rc = init_PP(¶ms, vout, dev, fbi, out_width, out_height); + } + if (rc < 0) + return rc; + } + + if (!vout->ic_bypass) { + switch (vout->display_input_ch) { + case MEM_PP_MEM: + vout->work_irq = IPU_IRQ_PP_OUT_EOF; + break; + case MEM_VDI_PRP_VF_MEM: + vout->work_irq = IPU_IRQ_PRP_VF_OUT_EOF; + break; + case MEM_ROT_VF_MEM: + vout->work_irq = IPU_IRQ_PRP_VF_ROT_OUT_EOF; + break; + case MEM_ROT_PP_MEM: + vout->work_irq = IPU_IRQ_PP_ROT_OUT_EOF; + break; + default: + dev_err(&vout->video_dev->dev, + "not support channel, should not be here\n"); + } + } else + vout->work_irq = -1; + + if (!vout->ic_bypass && (vout->work_irq > 0)) { + ipu_clear_irq(vout->work_irq); + ipu_request_irq(vout->work_irq, + mxc_v4l2out_work_irq_handler, + 0, vout->video_dev->name, vout); + } + + vout->state = STATE_STREAM_PAUSED; + + /* Enable display and IC channels */ + if (fbi) { + acquire_console_sem(); + fb_blank(fbi, FB_BLANK_UNBLANK); + release_console_sem(); + vout->fb_blank = FB_BLANK_UNBLANK; + } else { + ipu_enable_channel(vout->display_ch); + } + + /* correct display ch buffer address */ + ipu_update_channel_buffer(vout->display_ch, IPU_INPUT_BUFFER, + 0, vout->display_bufs[0]); + ipu_update_channel_buffer(vout->display_ch, IPU_INPUT_BUFFER, + 1, vout->display_bufs[1]); + + if (!vout->ic_bypass) { +#ifndef CONFIG_MXC_IPU_V1 + ipu_enable_channel(vout->post_proc_ch); +#endif + if (LOAD_3FIELDS(vout)) { + ipu_enable_channel(MEM_VDI_PRP_VF_MEM_P); + ipu_enable_channel(MEM_VDI_PRP_VF_MEM_N); + ipu_select_multi_vdi_buffer(0); + } else + ipu_select_buffer(vout->post_proc_ch, IPU_INPUT_BUFFER, 0); + ipu_select_buffer(vout->post_proc_ch, IPU_OUTPUT_BUFFER, 0); + ipu_select_buffer(vout->post_proc_ch, IPU_OUTPUT_BUFFER, 1); +#ifdef CONFIG_MXC_IPU_V1 + ipu_enable_channel(vout->post_proc_ch); +#endif + } else { + ipu_update_channel_buffer(vout->display_ch, + IPU_INPUT_BUFFER, + 0, vout->v4l2_bufs[vout->ipu_buf[0]].m.offset); + if (vout->offset.u_offset || vout->offset.v_offset) + /* only update u/v offset */ + ipu_update_channel_offset(vout->display_ch, + IPU_INPUT_BUFFER, + vout->v2f.fmt.pix.pixelformat, + vout->v2f.fmt.pix.width, + vout->v2f.fmt.pix.height, + vout->bytesperline, + vout->offset.u_offset, + vout->offset.v_offset, + 0, + 0); + ipu_select_buffer(vout->display_ch, IPU_INPUT_BUFFER, 0); + queue_work(vout->v4l_wq, &vout->icbypass_work); + } + + vout->start_jiffies = jiffies; + + msleep(1); + + dev_dbg(dev, + "streamon: start time = %lu jiffies\n", vout->start_jiffies); + + return 0; +} + +/*! + * Shut down the voutera + * + * @param vout structure vout_data * + * + * @return status 0 Success + */ +static int mxc_v4l2out_streamoff(vout_data *vout) +{ + struct fb_info *fbi = + registered_fb[vout->output_fb_num[vout->cur_disp_output]]; + int i, retval = 0; + unsigned long lockflag = 0; + + if (!vout) + return -EINVAL; + + if (vout->state == STATE_STREAM_OFF) { + return 0; + } + + if (!vout->ic_bypass) + ipu_free_irq(vout->work_irq, vout); + + if (vout->ic_bypass) + cancel_work_sync(&vout->icbypass_work); + + /* fill black color for fb, we assume fb has double buffer*/ + if (format_is_yuv(vout->v2f.fmt.pix.pixelformat)) { + int i; + + if ((vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_UYVY) || + (vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) || + (!vout->ic_bypass)) { + short * tmp = (short *) fbi->screen_base; + short color; + if (vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) + color = 0x8000; + else + color = 0x80; + for (i = 0; i < (fbi->fix.line_length * fbi->var.yres_virtual)/2; + i++, tmp++) + *tmp = color; + } else if ((vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YUV420) || + (vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YVU420) || + (vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_NV12)) { + char * base = (char *)fbi->screen_base; + int j, screen_size = fbi->var.xres * fbi->var.yres; + + for (j = 0; j < 2; j++) { + memset(base, 0, screen_size); + base += screen_size; + for (i = 0; i < screen_size/2; i++, base++) + *base = 0x80; + } + } else if (vout->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YUV422P) { + char * base = (char *)fbi->screen_base; + int j, screen_size = fbi->var.xres * fbi->var.yres; + + for (j = 0; j < 2; j++) { + memset(base, 0, screen_size); + base += screen_size; + for (i = 0; i < screen_size; i++, base++) + *base = 0x80; + } + } + } else + memset(fbi->screen_base, 0x0, + fbi->fix.line_length * fbi->var.yres_virtual); + + spin_lock_irqsave(&g_lock, lockflag); + + del_timer(&vout->output_timer); + + if (vout->state == STATE_STREAM_ON) { + vout->state = STATE_STREAM_STOPPING; + } + + spin_unlock_irqrestore(&g_lock, lockflag); + + if (vout->display_ch == MEM_FG_SYNC) { + struct mxcfb_pos fb_pos; + mm_segment_t old_fs; + + fb_pos.x = 0; + fb_pos.y = 0; + if (fbi->fbops->fb_ioctl) { + old_fs = get_fs(); + set_fs(KERNEL_DS); + fbi->fbops->fb_ioctl(fbi, MXCFB_SET_OVERLAY_POS, + (unsigned long)&fb_pos); + set_fs(old_fs); + } + } + + if (vout->ic_bypass) { + fbi->var.activate |= FB_ACTIVATE_FORCE; + acquire_console_sem(); + fbi->flags |= FBINFO_MISC_USEREVENT; + fb_set_var(fbi, &fbi->var); + fbi->flags &= ~FBINFO_MISC_USEREVENT; + release_console_sem(); + + if (vout->display_ch == MEM_FG_SYNC) { + acquire_console_sem(); + fb_blank(fbi, FB_BLANK_POWERDOWN); + release_console_sem(); + } + + vout->display_bufs[0] = 0; + vout->display_bufs[1] = 0; + } else if (vout->post_proc_ch == MEM_PP_MEM || + vout->post_proc_ch == MEM_PRP_VF_MEM) { + /* SDC with Rotation */ + if (!ipu_can_rotate_in_place(vout->rotate)) { + ipu_unlink_channels(MEM_PP_MEM, MEM_ROT_PP_MEM); + ipu_disable_channel(MEM_ROT_PP_MEM, true); + + if (vout->rot_pp_bufs[0]) { + mxc_free_buffers(vout->rot_pp_bufs, + vout->rot_pp_bufs_vaddr, 2, + vout->display_buf_size); + } + } + ipu_disable_channel(MEM_PP_MEM, true); + + fbi->var.activate |= FB_ACTIVATE_FORCE; + acquire_console_sem(); + fbi->flags |= FBINFO_MISC_USEREVENT; + fb_set_var(fbi, &fbi->var); + fbi->flags &= ~FBINFO_MISC_USEREVENT; + release_console_sem(); + + if (vout->display_ch == MEM_FG_SYNC) { + acquire_console_sem(); + fb_blank(fbi, FB_BLANK_POWERDOWN); + release_console_sem(); + } + + vout->display_bufs[0] = 0; + vout->display_bufs[1] = 0; + + ipu_uninit_channel(MEM_PP_MEM); + if (!ipu_can_rotate_in_place(vout->rotate)) + ipu_uninit_channel(MEM_ROT_PP_MEM); + } else if (INTERLACED_CONTENT(vout) && + (vout->post_proc_ch == MEM_VDI_PRP_VF_MEM)) { + if (!ipu_can_rotate_in_place(vout->rotate)) { + ipu_unlink_channels(MEM_VDI_PRP_VF_MEM, + MEM_ROT_VF_MEM); + ipu_disable_channel(MEM_ROT_VF_MEM, true); + + if (vout->rot_pp_bufs[0]) { + mxc_free_buffers(vout->rot_pp_bufs, + vout->rot_pp_bufs_vaddr, 2, + vout->display_buf_size); + } + } + + ipu_disable_channel(MEM_VDI_PRP_VF_MEM, true); + if (LOAD_3FIELDS(vout)) { + ipu_disable_channel(MEM_VDI_PRP_VF_MEM_P, true); + ipu_disable_channel(MEM_VDI_PRP_VF_MEM_N, true); + } + + fbi->var.activate |= FB_ACTIVATE_FORCE; + acquire_console_sem(); + fbi->flags |= FBINFO_MISC_USEREVENT; + fb_set_var(fbi, &fbi->var); + fbi->flags &= ~FBINFO_MISC_USEREVENT; + release_console_sem(); + + if (vout->display_ch == MEM_FG_SYNC) { + acquire_console_sem(); + fb_blank(fbi, FB_BLANK_POWERDOWN); + release_console_sem(); + } + + vout->display_bufs[0] = 0; + vout->display_bufs[1] = 0; + + ipu_uninit_channel(MEM_VDI_PRP_VF_MEM); + if (LOAD_3FIELDS(vout)) { + ipu_uninit_channel(MEM_VDI_PRP_VF_MEM_P); + ipu_uninit_channel(MEM_VDI_PRP_VF_MEM_N); + } + if (!ipu_can_rotate_in_place(vout->rotate)) + ipu_uninit_channel(MEM_ROT_VF_MEM); + } + + vout->ready_q.head = vout->ready_q.tail = 0; + vout->done_q.head = vout->done_q.tail = 0; + for (i = 0; i < vout->buffer_cnt; i++) { + vout->v4l2_bufs[i].flags = 0; + vout->v4l2_bufs[i].timestamp.tv_sec = 0; + vout->v4l2_bufs[i].timestamp.tv_usec = 0; + } + + vout->post_proc_ch = CHAN_NONE; + vout->state = STATE_STREAM_OFF; + + return retval; +} + +/* + * Valid whether the palette is supported + * + * @param palette V4L2_PIX_FMT_RGB565, V4L2_PIX_FMT_BGR24 or V4L2_PIX_FMT_BGR32 + * + * @return 1 if supported, 0 if failed + */ +static inline int valid_mode(u32 palette) +{ + return ((palette == V4L2_PIX_FMT_RGB565) || + (palette == V4L2_PIX_FMT_BGR24) || + (palette == V4L2_PIX_FMT_RGB24) || + (palette == V4L2_PIX_FMT_BGR32) || + (palette == V4L2_PIX_FMT_RGB32) || + (palette == V4L2_PIX_FMT_NV12) || + (palette == V4L2_PIX_FMT_UYVY) || + (palette == V4L2_PIX_FMT_YUYV) || + (palette == V4L2_PIX_FMT_YUV422P) || + (palette == V4L2_PIX_FMT_YUV444) || + (palette == V4L2_PIX_FMT_YUV420)); +} + +/* + * V4L2 - Handles VIDIOC_G_FMT Ioctl + * + * @param vout structure vout_data * + * + * @param v4l2_format structure v4l2_format * + * + * @return status 0 success, EINVAL failed + */ +static int mxc_v4l2out_g_fmt(vout_data *vout, struct v4l2_format *f) +{ + if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { + return -EINVAL; + } + *f = vout->v2f; + return 0; +} + +/* + * V4L2 - Handles VIDIOC_S_FMT Ioctl + * + * @param vout structure vout_data * + * + * @param v4l2_format structure v4l2_format * + * + * @return status 0 success, EINVAL failed + */ +static int mxc_v4l2out_s_fmt(vout_data *vout, struct v4l2_format *f) +{ + int retval = 0; + u32 size = 0; + u32 bytesperline; + + if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { + retval = -EINVAL; + goto err0; + } + if (!valid_mode(f->fmt.pix.pixelformat)) { + dev_err(&vout->video_dev->dev, "pixel format not supported\n"); + retval = -EINVAL; + goto err0; + } + + bytesperline = (f->fmt.pix.width * fmt_to_bpp(f->fmt.pix.pixelformat)) / + 8; + if (f->fmt.pix.bytesperline < bytesperline) { + f->fmt.pix.bytesperline = bytesperline; + } else { + bytesperline = f->fmt.pix.bytesperline; + } + vout->bytesperline = bytesperline; + + /* Based on http://v4l2spec.bytesex.org/spec/x6386.htm#V4L2-FIELD */ + vout->field_fmt = f->fmt.pix.field; + switch (vout->field_fmt) { + /* Images are in progressive format, not interlaced */ + case V4L2_FIELD_NONE: + break; + /* The two fields of a frame are passed in separate buffers, + in temporal order, i. e. the older one first. */ + case V4L2_FIELD_ALTERNATE: + dev_err(&vout->video_dev->dev, + "V4L2_FIELD_ALTERNATE field format not supported yet!\n"); + break; + case V4L2_FIELD_INTERLACED_TB: + case V4L2_FIELD_INTERLACED_BT: + if (cpu_is_mx51() || cpu_is_mx53()) + break; + dev_err(&vout->video_dev->dev, + "De-interlacing not supported in this device!\n"); + vout->field_fmt = V4L2_FIELD_NONE; + break; + default: + vout->field_fmt = V4L2_FIELD_NONE; + break; + } + + switch (f->fmt.pix.pixelformat) { + case V4L2_PIX_FMT_YUV422P: + /* byteperline for YUV planar formats is for + Y plane only */ + size = bytesperline * f->fmt.pix.height * 2; + break; + case V4L2_PIX_FMT_YUV420: + case V4L2_PIX_FMT_NV12: + size = (bytesperline * f->fmt.pix.height * 3) / 2; + break; + default: + size = bytesperline * f->fmt.pix.height; + break; + } + + /* Return the actual size of the image to the app */ + if (f->fmt.pix.sizeimage < size) { + f->fmt.pix.sizeimage = size; + } else { + size = f->fmt.pix.sizeimage; + } + + vout->v2f.fmt.pix = f->fmt.pix; + if (vout->v2f.fmt.pix.priv != 0) { + if (copy_from_user(&vout->offset, + (void *)vout->v2f.fmt.pix.priv, + sizeof(vout->offset))) { + retval = -EFAULT; + goto err0; + } + } else { + vout->offset.u_offset = 0; + vout->offset.v_offset = 0; + } + + retval = 0; + err0: + return retval; +} + +/* + * V4L2 - Handles VIDIOC_G_CTRL Ioctl + * + * @param vout structure vout_data * + * + * @param c structure v4l2_control * + * + * @return status 0 success, EINVAL failed + */ +static int mxc_get_v42lout_control(vout_data *vout, struct v4l2_control *c) +{ + switch (c->id) { + case V4L2_CID_HFLIP: + return (vout->rotate & IPU_ROTATE_HORIZ_FLIP) ? 1 : 0; + case V4L2_CID_VFLIP: + return (vout->rotate & IPU_ROTATE_VERT_FLIP) ? 1 : 0; + case (V4L2_CID_PRIVATE_BASE + 1): + return vout->rotate; + default: + return -EINVAL; + } +} + +/* + * V4L2 - Handles VIDIOC_S_CTRL Ioctl + * + * @param vout structure vout_data * + * + * @param c structure v4l2_control * + * + * @return status 0 success, EINVAL failed + */ +static int mxc_set_v42lout_control(vout_data *vout, struct v4l2_control *c) +{ + switch (c->id) { + case V4L2_CID_HFLIP: + vout->rotate |= c->value ? IPU_ROTATE_HORIZ_FLIP : + IPU_ROTATE_NONE; + break; + case V4L2_CID_VFLIP: + vout->rotate |= c->value ? IPU_ROTATE_VERT_FLIP : + IPU_ROTATE_NONE; + break; + case V4L2_CID_MXC_ROT: + vout->rotate = c->value; + break; + case V4L2_CID_MXC_MOTION: + vout->motion_sel = c->value; + break; + default: + return -EINVAL; + } + return 0; +} + +/*! + * V4L2 interface - open function + * + * @param file structure file * + * + * @return status 0 success, ENODEV invalid device instance, + * ENODEV timeout, ERESTARTSYS interrupted by user + */ +static int mxc_v4l2out_open(struct file *file) +{ + struct video_device *dev = video_devdata(file); + vout_data *vout = video_get_drvdata(dev); + int err; + + if (!vout) { + return -ENODEV; + } + + down(&vout->busy_lock); + + err = -EINTR; + if (signal_pending(current)) + goto oops; + + + if (vout->open_count++ == 0) { + init_waitqueue_head(&vout->v4l_bufq); + + init_timer(&vout->output_timer); + vout->output_timer.function = mxc_v4l2out_timer_handler; + vout->output_timer.data = (unsigned long)vout; + + vout->state = STATE_STREAM_OFF; + vout->rotate = IPU_ROTATE_NONE; + + vout->v4l_wq = create_singlethread_workqueue("v4l2q"); + if (!vout->v4l_wq) { + dev_dbg(&dev->dev, + "Could not create work queue\n"); + err = -ENOMEM; + goto oops; + } + + INIT_WORK(&vout->icbypass_work, icbypass_work_func); + } + + file->private_data = dev; + + up(&vout->busy_lock); + + return 0; + + oops: + up(&vout->busy_lock); + return err; +} + +/*! + * V4L2 interface - close function + * + * @param file struct file * + * + * @return 0 success + */ +static int mxc_v4l2out_close(struct file *file) +{ + struct video_device *dev = video_devdata(file); + vout_data *vout = video_get_drvdata(dev); + + if (--vout->open_count == 0) { + if (vout->state != STATE_STREAM_OFF) + mxc_v4l2out_streamoff(vout); + + file->private_data = NULL; + + mxc_free_buffers(vout->queue_buf_paddr, vout->queue_buf_vaddr, + vout->buffer_cnt, vout->queue_buf_size); + vout->buffer_cnt = 0; + mxc_free_buffers(vout->rot_pp_bufs, vout->rot_pp_bufs_vaddr, 2, + vout->display_buf_size); + + /* capture off */ + wake_up_interruptible(&vout->v4l_bufq); + + flush_workqueue(vout->v4l_wq); + destroy_workqueue(vout->v4l_wq); + } + + return 0; +} + +/*! + * V4L2 interface - ioctl function + * + * @param file struct file * + * + * @param ioctlnr unsigned int + * + * @param arg void * + * + * @return 0 success, ENODEV for invalid device instance, + * -1 for other errors. + */ +static long +mxc_v4l2out_do_ioctl(struct file *file, + unsigned int ioctlnr, void *arg) +{ + struct video_device *vdev = file->private_data; + vout_data *vout = video_get_drvdata(vdev); + int retval = 0; + int i = 0; + + if (!vout) + return -EBADF; + + /* make this _really_ smp-safe */ + if (down_interruptible(&vout->busy_lock)) + return -EBUSY; + + switch (ioctlnr) { + case VIDIOC_QUERYCAP: + { + struct v4l2_capability *cap = arg; + strcpy(cap->driver, "mxc_v4l2_output"); + cap->version = 0; + cap->capabilities = + V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; + cap->card[0] = '\0'; + cap->bus_info[0] = '\0'; + retval = 0; + break; + } + case VIDIOC_G_FMT: + { + struct v4l2_format *gf = arg; + retval = mxc_v4l2out_g_fmt(vout, gf); + break; + } + case VIDIOC_S_FMT: + { + struct v4l2_format *sf = arg; + if (vout->state != STATE_STREAM_OFF) { + retval = -EBUSY; + break; + } + retval = mxc_v4l2out_s_fmt(vout, sf); + break; + } + case VIDIOC_REQBUFS: + { + struct v4l2_requestbuffers *req = arg; + if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || + (req->memory != V4L2_MEMORY_MMAP)) { + dev_dbg(&vdev->dev, + "VIDIOC_REQBUFS: incorrect buffer type\n"); + retval = -EINVAL; + break; + } + + if (req->count == 0) + mxc_v4l2out_streamoff(vout); + + if (vout->state == STATE_STREAM_OFF) { + if (vout->queue_buf_paddr[0] != 0) { + mxc_free_buffers(vout->queue_buf_paddr, + vout->queue_buf_vaddr, + vout->buffer_cnt, + vout->queue_buf_size); + dev_dbg(&vdev->dev, + "VIDIOC_REQBUFS: freed buffers\n"); + } + vout->buffer_cnt = 0; + } else { + dev_dbg(&vdev->dev, + "VIDIOC_REQBUFS: Buffer is in use\n"); + retval = -EBUSY; + break; + } + + if (req->count == 0) + break; + + if (req->count < MIN_FRAME_NUM) { + req->count = MIN_FRAME_NUM; + } else if (req->count > MAX_FRAME_NUM) { + req->count = MAX_FRAME_NUM; + } + vout->buffer_cnt = req->count; + vout->queue_buf_size = + PAGE_ALIGN(vout->v2f.fmt.pix.sizeimage); + + retval = mxc_allocate_buffers(vout->queue_buf_paddr, + vout->queue_buf_vaddr, + vout->buffer_cnt, + vout->queue_buf_size); + if (retval < 0) + break; + + /* Init buffer queues */ + vout->done_q.head = 0; + vout->done_q.tail = 0; + vout->ready_q.head = 0; + vout->ready_q.tail = 0; + + for (i = 0; i < vout->buffer_cnt; i++) { + memset(&(vout->v4l2_bufs[i]), 0, + sizeof(vout->v4l2_bufs[i])); + vout->v4l2_bufs[i].flags = 0; + vout->v4l2_bufs[i].memory = V4L2_MEMORY_MMAP; + vout->v4l2_bufs[i].index = i; + vout->v4l2_bufs[i].type = + V4L2_BUF_TYPE_VIDEO_OUTPUT; + vout->v4l2_bufs[i].length = + PAGE_ALIGN(vout->v2f.fmt.pix.sizeimage); + vout->v4l2_bufs[i].m.offset = + (unsigned long)vout->queue_buf_paddr[i]; + vout->v4l2_bufs[i].timestamp.tv_sec = 0; + vout->v4l2_bufs[i].timestamp.tv_usec = 0; + } + break; + } + case VIDIOC_QUERYBUF: + { + struct v4l2_buffer *buf = arg; + u32 type = buf->type; + int index = buf->index; + + if ((type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || + (index >= vout->buffer_cnt)) { + dev_dbg(&vdev->dev, + "VIDIOC_QUERYBUFS: incorrect buffer type\n"); + retval = -EINVAL; + break; + } + down(&vout->param_lock); + memcpy(buf, &(vout->v4l2_bufs[index]), sizeof(*buf)); + up(&vout->param_lock); + break; + } + case VIDIOC_QBUF: + { + struct v4l2_buffer *buf = arg; + int index = buf->index; + unsigned long lock_flags; + int param[5][3]; + + if ((buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || + (index >= vout->buffer_cnt)) { + retval = -EINVAL; + break; + } + + dev_dbg(&vdev->dev, "VIDIOC_QBUF: %d field = %d\n", buf->index, buf->field); + + /* mmapped buffers are L1 WB cached, + * so we need to clean them */ + if (buf->memory & V4L2_MEMORY_MMAP) { + flush_cache_all(); + } + + spin_lock_irqsave(&g_lock, lock_flags); + + memcpy(&(vout->v4l2_bufs[index]), buf, sizeof(*buf)); + vout->v4l2_bufs[index].flags |= V4L2_BUF_FLAG_QUEUED; + + g_buf_q_cnt++; + if (vout->v4l2_bufs[index].reserved) + if (!copy_from_user(¶m[0][0], + (void *)vout-> + v4l2_bufs[index] + .reserved, sizeof(param))) + ipu_set_csc_coefficients(vout-> + display_ch, + param); + queue_buf(&vout->ready_q, index); + if (vout->state == STATE_STREAM_PAUSED) { + index = peek_next_buf(&vout->ready_q); + setup_next_buf_timer(vout, index); + vout->state = STATE_STREAM_ON; + } + + spin_unlock_irqrestore(&g_lock, lock_flags); + break; + } + case VIDIOC_DQBUF: + { + struct v4l2_buffer *buf = arg; + int idx; + + if ((queue_size(&vout->done_q) == 0) && + (file->f_flags & O_NONBLOCK)) { + retval = -EAGAIN; + break; + } + + if (!wait_event_interruptible_timeout(vout->v4l_bufq, + queue_size(&vout-> + done_q) + != 0, 10 * HZ)) { + dev_dbg(&vdev->dev, "VIDIOC_DQBUF: timeout\n"); + retval = -ETIME; + break; + } else if (signal_pending(current)) { + dev_dbg(&vdev->dev, + "VIDIOC_DQBUF: interrupt received\n"); + retval = -ERESTARTSYS; + break; + } + idx = dequeue_buf(&vout->done_q); + if (idx == -1) { /* No frame free */ + dev_dbg(&vdev->dev, + "VIDIOC_DQBUF: no free buffers, returning\n"); + retval = -EAGAIN; + break; + } + if ((vout->v4l2_bufs[idx].flags & V4L2_BUF_FLAG_DONE) == + 0) + dev_dbg(&vdev->dev, + "VIDIOC_DQBUF: buffer in done q, but not " + "flagged as done\n"); + + vout->v4l2_bufs[idx].flags = 0; + memcpy(buf, &(vout->v4l2_bufs[idx]), sizeof(*buf)); + dev_dbg(&vdev->dev, "VIDIOC_DQBUF: %d\n", buf->index); + break; + } + case VIDIOC_STREAMON: + { + retval = mxc_v4l2out_streamon(vout); + break; + } + case VIDIOC_STREAMOFF: + { + retval = mxc_v4l2out_streamoff(vout); + break; + } + case VIDIOC_G_CTRL: + { + retval = mxc_get_v42lout_control(vout, arg); + break; + } + case VIDIOC_S_CTRL: + { + retval = mxc_set_v42lout_control(vout, arg); + break; + } + case VIDIOC_CROPCAP: + { + struct v4l2_cropcap *cap = arg; + + if (cap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { + retval = -EINVAL; + break; + } + + cap->bounds = vout->crop_bounds[vout->cur_disp_output]; + cap->defrect = vout->crop_bounds[vout->cur_disp_output]; + retval = 0; + break; + } + case VIDIOC_G_CROP: + { + struct v4l2_crop *crop = arg; + + if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { + retval = -EINVAL; + break; + } + crop->c = vout->crop_current; + break; + } + case VIDIOC_S_CROP: + { + struct v4l2_crop *crop = arg; + struct v4l2_rect *b = + &(vout->crop_bounds[vout->cur_disp_output]); + + if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { + retval = -EINVAL; + break; + } + if (crop->c.height < 0) { + retval = -EINVAL; + break; + } + if (crop->c.width < 0) { + retval = -EINVAL; + break; + } + + /* only full screen supported for SDC BG and SDC DC */ + if (vout->cur_disp_output == 4) { + crop->c = vout->crop_current; + break; + } + + if (crop->c.top < b->top) + crop->c.top = b->top; + if (crop->c.top >= b->top + b->height) + crop->c.top = b->top + b->height - 1; + if (crop->c.height > b->top - crop->c.top + b->height) + crop->c.height = + b->top - crop->c.top + b->height; + + if (crop->c.left < b->left) + crop->c.left = b->left; + if (crop->c.left >= b->left + b->width) + crop->c.left = b->left + b->width - 1; + if (crop->c.width > b->left - crop->c.left + b->width) + crop->c.width = + b->left - crop->c.left + b->width; + + /* stride line limitation */ + crop->c.height -= crop->c.height % 8; + crop->c.width -= crop->c.width % 8; + + vout->crop_current = crop->c; + break; + } + case VIDIOC_ENUMOUTPUT: + { + struct v4l2_output *output = arg; + + if ((output->index >= 5) || + (vout->output_enabled[output->index] == false)) { + retval = -EINVAL; + break; + } + + if (output->index >= 3) + *output = mxc_outputs[MXC_V4L2_OUT_2_SDC]; + break; + } + case VIDIOC_G_OUTPUT: + { + int *p_output_num = arg; + + *p_output_num = vout->cur_disp_output; + break; + } + case VIDIOC_S_OUTPUT: + { + int *p_output_num = arg; + int fbnum; + struct v4l2_rect *b; + + if ((*p_output_num >= MXC_V4L2_OUT_NUM_OUTPUTS) || + (vout->output_enabled[*p_output_num] == false)) { + retval = -EINVAL; + break; + } + + if (vout->state != STATE_STREAM_OFF) { + retval = -EBUSY; + break; + } + + vout->cur_disp_output = *p_output_num; + + /* Update bounds in case they have changed */ + b = &vout->crop_bounds[vout->cur_disp_output]; + + fbnum = vout->output_fb_num[vout->cur_disp_output]; + + /* + * For FG overlay, it uses BG window parameter as + * limitation reference; and BG must be enabled to + * support FG. + */ + if (vout->cur_disp_output == 3) { + unsigned int i, ipu_ch = CHAN_NONE; + struct fb_info *fbi; + mm_segment_t old_fs; + + for (i = 0; i < num_registered_fb; i++) { + fbi = registered_fb[i]; + if (fbi->fbops->fb_ioctl) { + old_fs = get_fs(); + set_fs(KERNEL_DS); + fbi->fbops->fb_ioctl(fbi, + MXCFB_GET_FB_IPU_CHAN, + (unsigned long)&ipu_ch); + set_fs(old_fs); + } + if (ipu_ch == CHAN_NONE) { + dev_err(&vdev->dev, + "Can't get disp ipu channel\n"); + retval = -EINVAL; + break; + } + + if (ipu_ch == MEM_BG_SYNC) { + fbnum = i; + break; + } + } + } + + b->width = registered_fb[fbnum]->var.xres; + b->height = registered_fb[fbnum]->var.yres; + + vout->crop_current = *b; + break; + } + case VIDIOC_ENUM_FMT: + case VIDIOC_TRY_FMT: + case VIDIOC_QUERYCTRL: + case VIDIOC_G_PARM: + case VIDIOC_ENUMSTD: + case VIDIOC_G_STD: + case VIDIOC_S_STD: + case VIDIOC_G_TUNER: + case VIDIOC_S_TUNER: + case VIDIOC_G_FREQUENCY: + case VIDIOC_S_FREQUENCY: + default: + retval = -EINVAL; + break; + } + + up(&vout->busy_lock); + return retval; +} + +/* + * V4L2 interface - ioctl function + * + * @return None + */ +static long +mxc_v4l2out_ioctl(struct file *file, + unsigned int cmd, unsigned long arg) +{ + return video_usercopy(file, cmd, arg, mxc_v4l2out_do_ioctl); +} + +/*! + * V4L2 interface - mmap function + * + * @param file structure file * + * + * @param vma structure vm_area_struct * + * + * @return status 0 Success, EINTR busy lock error, + * ENOBUFS remap_page error + */ +static int mxc_v4l2out_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct video_device *vdev = video_devdata(file); + unsigned long size = vma->vm_end - vma->vm_start; + int res = 0; + int i; + vout_data *vout = video_get_drvdata(vdev); + + dev_dbg(&vdev->dev, "pgoff=0x%lx, start=0x%lx, end=0x%lx\n", + vma->vm_pgoff, vma->vm_start, vma->vm_end); + + /* make this _really_ smp-safe */ + if (down_interruptible(&vout->busy_lock)) + return -EINTR; + + for (i = 0; i < vout->buffer_cnt; i++) { + if ((vout->v4l2_bufs[i].m.offset == + (vma->vm_pgoff << PAGE_SHIFT)) && + (vout->v4l2_bufs[i].length >= size)) { + vout->v4l2_bufs[i].flags |= V4L2_BUF_FLAG_MAPPED; + break; + } + } + if (i == vout->buffer_cnt) { + res = -ENOBUFS; + goto mxc_mmap_exit; + } + + /* make buffers inner write-back, outer write-thru cacheable */ + /* vma->vm_page_prot = pgprot_outer_wrthru(vma->vm_page_prot);*/ + + if (remap_pfn_range(vma, vma->vm_start, + vma->vm_pgoff, size, vma->vm_page_prot)) { + dev_dbg(&vdev->dev, "mmap remap_pfn_range failed\n"); + res = -ENOBUFS; + goto mxc_mmap_exit; + } + + vma->vm_flags &= ~VM_IO; /* using shared anonymous pages */ + + mxc_mmap_exit: + up(&vout->busy_lock); + return res; +} + +/*! + * V4L2 interface - poll function + * + * @param file structure file * + * + * @param wait structure poll_table_struct * + * + * @return status POLLIN | POLLRDNORM + */ +static unsigned int mxc_v4l2out_poll(struct file *file, struct poll_table_struct * wait) +{ + struct video_device *dev = video_devdata(file); + vout_data *vout = video_get_drvdata(dev); + + wait_queue_head_t *queue = NULL; + int res = POLLIN | POLLRDNORM; + + if (down_interruptible(&vout->busy_lock)) + return -EINTR; + + queue = &vout->v4l_bufq; + poll_wait(file, queue, wait); + + up(&vout->busy_lock); + return res; +} + +static struct +v4l2_file_operations mxc_v4l2out_fops = { + .owner = THIS_MODULE, + .open = mxc_v4l2out_open, + .release = mxc_v4l2out_close, + .ioctl = mxc_v4l2out_ioctl, + .mmap = mxc_v4l2out_mmap, + .poll = mxc_v4l2out_poll, +}; + +static struct video_device mxc_v4l2out_template = { + .name = "MXC Video Output", + .vfl_type = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING, + .fops = &mxc_v4l2out_fops, + .release = video_device_release, +}; + +static ssize_t show_streaming(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct video_device *video_dev = container_of(dev, + struct video_device, dev); + vout_data *vout = video_get_drvdata(video_dev); + + if (vout->state == STATE_STREAM_OFF) + return sprintf(buf, "stream off\n"); + else if (vout->state == STATE_STREAM_PAUSED) + return sprintf(buf, "stream paused\n"); + else + return sprintf(buf, "stream on\n"); +} +static DEVICE_ATTR(fsl_v4l2_output_property, S_IRUGO, show_streaming, NULL); + +/*! + * Probe routine for the framebuffer driver. It is called during the + * driver binding process. The following functions are performed in + * this routine: Framebuffer initialization, Memory allocation and + * mapping, Framebuffer registration, IPU initialization. + * + * @return Appropriate error code to the kernel common code + */ +static int mxc_v4l2out_probe(struct platform_device *pdev) +{ + int i; + vout_data *vout; + + /* + * Allocate sufficient memory for the fb structure + */ + vout = kmalloc(sizeof(vout_data), GFP_KERNEL); + + if (!vout) + return 0; + + memset(vout, 0, sizeof(vout_data)); + + vout->video_dev = video_device_alloc(); + if (vout->video_dev == NULL) + return -1; + vout->video_dev->minor = -1; + + *(vout->video_dev) = mxc_v4l2out_template; + + /* register v4l device */ + if (video_register_device(vout->video_dev, + VFL_TYPE_GRABBER, video_nr) == -1) { + dev_dbg(&pdev->dev, "video_register_device failed\n"); + return 0; + } + dev_info(&pdev->dev, "Registered device video%d\n", + vout->video_dev->minor & 0x1f); + /*vout->video_dev->dev = &pdev->dev;*/ + + video_set_drvdata(vout->video_dev, vout); + + init_MUTEX(&vout->param_lock); + init_MUTEX(&vout->busy_lock); + + /* setup outputs and cropping */ + vout->cur_disp_output = -1; + for (i = 0; i < num_registered_fb; i++) { + char *idstr = registered_fb[i]->fix.id; + if (strncmp(idstr, "DISP", 4) == 0) { + int disp_num = idstr[4] - '0'; + if (disp_num == 3) { + if (strcmp(idstr, "DISP3 BG - DI1") == 0) + disp_num = 5; + else if (strncmp(idstr, "DISP3 BG", 8) == 0) + disp_num = 4; + } + vout->crop_bounds[disp_num].left = 0; + vout->crop_bounds[disp_num].top = 0; + vout->crop_bounds[disp_num].width = + registered_fb[i]->var.xres; + vout->crop_bounds[disp_num].height = + registered_fb[i]->var.yres; + vout->output_enabled[disp_num] = true; + vout->output_fb_num[disp_num] = i; + if (vout->cur_disp_output == -1) { + vout->cur_disp_output = disp_num; + } + } + + } + vout->crop_current = vout->crop_bounds[vout->cur_disp_output]; + + platform_set_drvdata(pdev, vout); + + if (device_create_file(&vout->video_dev->dev, + &dev_attr_fsl_v4l2_output_property)) + dev_err(&pdev->dev, "Error on creating file\n"); + + return 0; +} + +static int mxc_v4l2out_remove(struct platform_device *pdev) +{ + vout_data *vout = platform_get_drvdata(pdev); + + if (vout->video_dev) { + device_remove_file(&vout->video_dev->dev, + &dev_attr_fsl_v4l2_output_property); + video_unregister_device(vout->video_dev); + vout->video_dev = NULL; + } + + platform_set_drvdata(pdev, NULL); + + kfree(vout); + + return 0; +} + +/*! + * This structure contains pointers to the power management callback functions. + */ +static struct platform_driver mxc_v4l2out_driver = { + .driver = { + .name = "mxc_v4l2_output", + }, + .probe = mxc_v4l2out_probe, + .remove = mxc_v4l2out_remove, +}; + +/*! + * mxc v4l2 init function + * + */ +static int mxc_v4l2out_init(void) +{ + return platform_driver_register(&mxc_v4l2out_driver); +} + +/*! + * mxc v4l2 cleanup function + * + */ +static void mxc_v4l2out_clean(void) +{ + platform_driver_unregister(&mxc_v4l2out_driver); +} + +module_init(mxc_v4l2out_init); +module_exit(mxc_v4l2out_clean); + +module_param(video_nr, int, 0444); +MODULE_AUTHOR("Freescale Semiconductor, Inc."); +MODULE_DESCRIPTION("V4L2-driver for MXC video output"); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("video"); diff --git a/drivers/media/video/mxc/output/mxc_v4l2_output.h b/drivers/media/video/mxc/output/mxc_v4l2_output.h new file mode 100644 index 000000000000..c26194f5ff90 --- /dev/null +++ b/drivers/media/video/mxc/output/mxc_v4l2_output.h @@ -0,0 +1,157 @@ +/* + * Copyright 2005-2010 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +/*! + * @defgroup MXC_V4L2_OUTPUT MXC V4L2 Video Output Driver + */ +/*! + * @file mxc_v4l2_output.h + * + * @brief MXC V4L2 Video Output Driver Header file + * + * Video4Linux2 Output Device using MXC IPU Post-processing functionality. + * + * @ingroup MXC_V4L2_OUTPUT + */ +#ifndef __MXC_V4L2_OUTPUT_H__ +#define __MXC_V4L2_OUTPUT_H__ + +#include <media/v4l2-dev.h> + +#ifdef __KERNEL__ + +#include <linux/ipu.h> +#include <linux/mxc_v4l2.h> +#include <linux/videodev2.h> + +#define MIN_FRAME_NUM 2 +#define MAX_FRAME_NUM 30 + +#define MXC_V4L2_OUT_NUM_OUTPUTS 6 +#define MXC_V4L2_OUT_2_SDC 0 + + +typedef struct { + int list[MAX_FRAME_NUM + 1]; + int head; + int tail; +} v4l_queue; + +/*! + * States for the video stream + */ +typedef enum { + STATE_STREAM_OFF, + STATE_STREAM_ON, + STATE_STREAM_PAUSED, + STATE_STREAM_STOPPING, +} v4lout_state; + +/*! + * common v4l2 driver structure. + */ +typedef struct _vout_data { + struct video_device *video_dev; + /*! + * semaphore guard against SMP multithreading + */ + struct semaphore busy_lock; + + /*! + * number of process that have device open + */ + int open_count; + + /*! + * params lock for this camera + */ + struct semaphore param_lock; + + struct timer_list output_timer; + struct workqueue_struct *v4l_wq; + struct work_struct icbypass_work; + int disp_buf_num; + int fb_blank; + unsigned long start_jiffies; + u32 frame_count; + + v4l_queue ready_q; + v4l_queue done_q; + + s8 next_rdy_ipu_buf; + s8 next_done_ipu_buf; + s8 next_disp_ipu_buf; + s8 ipu_buf[2]; + s8 ipu_buf_p[2]; + s8 ipu_buf_n[2]; + volatile v4lout_state state; + + int cur_disp_output; + int output_fb_num[MXC_V4L2_OUT_NUM_OUTPUTS]; + int output_enabled[MXC_V4L2_OUT_NUM_OUTPUTS]; + struct v4l2_framebuffer v4l2_fb; + int ic_bypass; + u32 work_irq; + ipu_channel_t display_ch; + ipu_channel_t post_proc_ch; + ipu_channel_t display_input_ch; + + /*! + * FRAME_NUM-buffering, so we need a array + */ + int buffer_cnt; + dma_addr_t queue_buf_paddr[MAX_FRAME_NUM]; + void *queue_buf_vaddr[MAX_FRAME_NUM]; + u32 queue_buf_size; + struct v4l2_buffer v4l2_bufs[MAX_FRAME_NUM]; + u32 display_buf_size; + dma_addr_t display_bufs[2]; + void *display_bufs_vaddr[2]; + dma_addr_t rot_pp_bufs[2]; + void *rot_pp_bufs_vaddr[2]; + + /*! + * Poll wait queue + */ + wait_queue_head_t v4l_bufq; + + /*! + * v4l2 format + */ + struct v4l2_format v2f; + struct v4l2_mxc_offset offset; + ipu_rotate_mode_t rotate; + + /* crop */ + struct v4l2_rect crop_bounds[MXC_V4L2_OUT_NUM_OUTPUTS]; + struct v4l2_rect crop_current; + u32 bytesperline; + enum v4l2_field field_fmt; + ipu_motion_sel motion_sel; + + /* PP split fot two stripes*/ + int pp_split; /* 0,1 */ + struct stripe_param pp_left_stripe; + struct stripe_param pp_right_stripe; /* struct for split parameters */ + struct stripe_param pp_up_stripe; + struct stripe_param pp_down_stripe; + /* IC ouput buffer number. Counting from 0 to 7 */ + int pp_split_buf_num; /* 0..7 */ + u16 bpp ; /* bit per pixel */ + u16 xres; /* width of physical frame (BGs) */ + u16 yres; /* heigth of physical frame (BGs)*/ + +} vout_data; + +#endif +#endif /* __MXC_V4L2_OUTPUT_H__ */ |