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path: root/drivers/media/platform/mxc/capture/ipu_fg_overlay_sdc.c
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Diffstat (limited to 'drivers/media/platform/mxc/capture/ipu_fg_overlay_sdc.c')
-rw-r--r--drivers/media/platform/mxc/capture/ipu_fg_overlay_sdc.c638
1 files changed, 638 insertions, 0 deletions
diff --git a/drivers/media/platform/mxc/capture/ipu_fg_overlay_sdc.c b/drivers/media/platform/mxc/capture/ipu_fg_overlay_sdc.c
new file mode 100644
index 000000000000..4d6b1365bb0d
--- /dev/null
+++ b/drivers/media/platform/mxc/capture/ipu_fg_overlay_sdc.c
@@ -0,0 +1,638 @@
+/*
+ * Copyright 2004-2015 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 ipu_foreground_sdc.c
+ *
+ * @brief IPU Use case for PRP-VF
+ *
+ * @ingroup IPU
+ */
+
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/console.h>
+#include <linux/ipu.h>
+#include <linux/mxcfb.h>
+#include <linux/mipi_csi2.h>
+
+#include "mxc_v4l2_capture.h"
+#include "ipu_prp_sw.h"
+
+#ifdef CAMERA_DBG
+ #define CAMERA_TRACE(x) (printk)x
+#else
+ #define CAMERA_TRACE(x)
+#endif
+
+static int csi_buffer_num, buffer_num;
+static u32 csi_mem_bufsize;
+static struct ipu_soc *disp_ipu;
+static struct fb_info *fbi;
+static struct fb_var_screeninfo fbvar;
+static u32 vf_out_format;
+static void csi_buf_work_func(struct work_struct *work)
+{
+ int err = 0;
+ cam_data *cam =
+ container_of(work, struct _cam_data, csi_work_struct);
+
+ struct ipu_task task;
+ memset(&task, 0, sizeof(task));
+
+ if (csi_buffer_num)
+ task.input.paddr = cam->vf_bufs[0];
+ else
+ task.input.paddr = cam->vf_bufs[1];
+ task.input.width = cam->crop_current.width;
+ task.input.height = cam->crop_current.height;
+ task.input.format = IPU_PIX_FMT_NV12;
+
+ if (buffer_num == 0)
+ task.output.paddr = fbi->fix.smem_start +
+ (fbi->fix.line_length * fbvar.yres);
+ else
+ task.output.paddr = fbi->fix.smem_start;
+ task.output.width = cam->win.w.width;
+ task.output.height = cam->win.w.height;
+ task.output.format = vf_out_format;
+ task.output.rotate = cam->rotation;
+again:
+ err = ipu_check_task(&task);
+ if (err != IPU_CHECK_OK) {
+ if (err > IPU_CHECK_ERR_MIN) {
+ if (err == IPU_CHECK_ERR_SPLIT_INPUTW_OVER) {
+ task.input.crop.w -= 8;
+ goto again;
+ }
+ if (err == IPU_CHECK_ERR_SPLIT_INPUTH_OVER) {
+ task.input.crop.h -= 8;
+ goto again;
+ }
+ if (err == IPU_CHECK_ERR_SPLIT_OUTPUTW_OVER) {
+ task.output.width -= 8;
+ task.output.crop.w = task.output.width;
+ goto again;
+ }
+ if (err == IPU_CHECK_ERR_SPLIT_OUTPUTH_OVER) {
+ task.output.height -= 8;
+ task.output.crop.h = task.output.height;
+ goto again;
+ }
+ printk(KERN_ERR "check ipu taks fail\n");
+ return;
+ }
+ printk(KERN_ERR "check ipu taks fail\n");
+ return;
+ }
+ err = ipu_queue_task(&task);
+ if (err < 0)
+ printk(KERN_ERR "queue ipu task error\n");
+ ipu_select_buffer(disp_ipu, MEM_FG_SYNC, IPU_INPUT_BUFFER, buffer_num);
+ buffer_num = (buffer_num == 0) ? 1 : 0;
+}
+
+static void get_disp_ipu(cam_data *cam)
+{
+ if (cam->output > 2)
+ disp_ipu = ipu_get_soc(1); /* using DISP4 */
+ else
+ disp_ipu = ipu_get_soc(0);
+}
+
+/*!
+ * csi ENC callback function.
+ *
+ * @param irq int irq line
+ * @param dev_id void * device id
+ *
+ * @return status IRQ_HANDLED for handled
+ */
+static irqreturn_t csi_enc_callback(int irq, void *dev_id)
+{
+ cam_data *cam = (cam_data *) dev_id;
+ ipu_channel_t chan = (irq == IPU_IRQ_CSI0_OUT_EOF) ?
+ CSI_MEM0 : CSI_MEM1;
+
+ ipu_select_buffer(cam->ipu, chan,
+ IPU_OUTPUT_BUFFER, csi_buffer_num);
+
+ if ((cam->crop_current.width != cam->win.w.width) ||
+ (cam->crop_current.height != cam->win.w.height) ||
+ (vf_out_format != IPU_PIX_FMT_NV12) ||
+ (cam->rotation >= IPU_ROTATE_VERT_FLIP))
+ schedule_work(&cam->csi_work_struct);
+ csi_buffer_num = (csi_buffer_num == 0) ? 1 : 0;
+ return IRQ_HANDLED;
+}
+
+static int csi_enc_setup(cam_data *cam)
+{
+ ipu_channel_params_t params;
+ int err = 0, sensor_protocol = 0;
+ ipu_channel_t chan = (cam->csi == 0) ? CSI_MEM0 : CSI_MEM1;
+#ifdef CONFIG_MXC_MIPI_CSI2
+ void *mipi_csi2_info;
+ int ipu_id;
+ int csi_id;
+#endif
+
+ CAMERA_TRACE("In csi_enc_setup\n");
+ if (!cam) {
+ printk(KERN_ERR "cam private is NULL\n");
+ return -ENXIO;
+ }
+
+ memset(&params, 0, sizeof(ipu_channel_params_t));
+ params.csi_mem.csi = cam->csi;
+
+ sensor_protocol = ipu_csi_get_sensor_protocol(cam->ipu, cam->csi);
+ switch (sensor_protocol) {
+ case IPU_CSI_CLK_MODE_GATED_CLK:
+ case IPU_CSI_CLK_MODE_NONGATED_CLK:
+ case IPU_CSI_CLK_MODE_CCIR656_PROGRESSIVE:
+ case IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_DDR:
+ case IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_SDR:
+ params.csi_mem.interlaced = false;
+ break;
+ case IPU_CSI_CLK_MODE_CCIR656_INTERLACED:
+ case IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_DDR:
+ case IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_SDR:
+ params.csi_mem.interlaced = true;
+ break;
+ default:
+ printk(KERN_ERR "sensor protocol unsupported\n");
+ return -EINVAL;
+ }
+
+#ifdef CONFIG_MXC_MIPI_CSI2
+ mipi_csi2_info = mipi_csi2_get_info();
+
+ if (mipi_csi2_info) {
+ if (mipi_csi2_get_status(mipi_csi2_info)) {
+ ipu_id = mipi_csi2_get_bind_ipu(mipi_csi2_info);
+ csi_id = mipi_csi2_get_bind_csi(mipi_csi2_info);
+
+ if (cam->ipu == ipu_get_soc(ipu_id)
+ && cam->csi == csi_id) {
+ params.csi_mem.mipi_en = true;
+ params.csi_mem.mipi_vc =
+ mipi_csi2_get_virtual_channel(mipi_csi2_info);
+ params.csi_mem.mipi_id =
+ mipi_csi2_get_datatype(mipi_csi2_info);
+
+ mipi_csi2_pixelclk_enable(mipi_csi2_info);
+ } else {
+ params.csi_mem.mipi_en = false;
+ params.csi_mem.mipi_vc = 0;
+ params.csi_mem.mipi_id = 0;
+ }
+ } else {
+ params.csi_mem.mipi_en = false;
+ params.csi_mem.mipi_vc = 0;
+ params.csi_mem.mipi_id = 0;
+ }
+ }
+#endif
+
+ if (cam->vf_bufs_vaddr[0]) {
+ dma_free_coherent(0, cam->vf_bufs_size[0],
+ cam->vf_bufs_vaddr[0],
+ (dma_addr_t) cam->vf_bufs[0]);
+ }
+ if (cam->vf_bufs_vaddr[1]) {
+ dma_free_coherent(0, cam->vf_bufs_size[1],
+ cam->vf_bufs_vaddr[1],
+ (dma_addr_t) cam->vf_bufs[1]);
+ }
+ csi_mem_bufsize = cam->crop_current.width *
+ cam->crop_current.height * 3/2;
+ cam->vf_bufs_size[0] = PAGE_ALIGN(csi_mem_bufsize);
+ cam->vf_bufs_vaddr[0] = (void *)dma_alloc_coherent(0,
+ cam->vf_bufs_size[0],
+ (dma_addr_t *) &
+ cam->vf_bufs[0],
+ GFP_DMA |
+ GFP_KERNEL);
+ if (cam->vf_bufs_vaddr[0] == NULL) {
+ printk(KERN_ERR "Error to allocate vf buffer\n");
+ err = -ENOMEM;
+ goto out_2;
+ }
+ cam->vf_bufs_size[1] = PAGE_ALIGN(csi_mem_bufsize);
+ cam->vf_bufs_vaddr[1] = (void *)dma_alloc_coherent(0,
+ cam->vf_bufs_size[1],
+ (dma_addr_t *) &
+ cam->vf_bufs[1],
+ GFP_DMA |
+ GFP_KERNEL);
+ if (cam->vf_bufs_vaddr[1] == NULL) {
+ printk(KERN_ERR "Error to allocate vf buffer\n");
+ err = -ENOMEM;
+ goto out_1;
+ }
+ pr_debug("vf_bufs %x %x\n", cam->vf_bufs[0], cam->vf_bufs[1]);
+
+ err = ipu_init_channel(cam->ipu, chan, &params);
+ if (err != 0) {
+ printk(KERN_ERR "ipu_init_channel %d\n", err);
+ goto out_1;
+ }
+
+ if ((cam->crop_current.width == cam->win.w.width) &&
+ (cam->crop_current.height == cam->win.w.height) &&
+ (vf_out_format == IPU_PIX_FMT_NV12) &&
+ (cam->rotation < IPU_ROTATE_VERT_FLIP)) {
+ err = ipu_init_channel_buffer(cam->ipu, chan,
+ IPU_OUTPUT_BUFFER, IPU_PIX_FMT_NV12,
+ cam->crop_current.width,
+ cam->crop_current.height,
+ cam->crop_current.width, IPU_ROTATE_NONE,
+ fbi->fix.smem_start +
+ (fbi->fix.line_length * fbvar.yres),
+ fbi->fix.smem_start, 0,
+ cam->offset.u_offset, cam->offset.u_offset);
+ } else {
+ err = ipu_init_channel_buffer(cam->ipu, chan,
+ IPU_OUTPUT_BUFFER, IPU_PIX_FMT_NV12,
+ cam->crop_current.width,
+ cam->crop_current.height,
+ cam->crop_current.width, IPU_ROTATE_NONE,
+ cam->vf_bufs[0], cam->vf_bufs[1], 0,
+ cam->offset.u_offset, cam->offset.u_offset);
+ }
+ if (err != 0) {
+ printk(KERN_ERR "CSI_MEM output buffer\n");
+ goto out_1;
+ }
+ err = ipu_enable_channel(cam->ipu, chan);
+ if (err < 0) {
+ printk(KERN_ERR "ipu_enable_channel CSI_MEM\n");
+ goto out_1;
+ }
+
+ csi_buffer_num = 0;
+
+ ipu_select_buffer(cam->ipu, chan, IPU_OUTPUT_BUFFER, 0);
+ ipu_select_buffer(cam->ipu, chan, IPU_OUTPUT_BUFFER, 1);
+ return err;
+out_1:
+ if (cam->vf_bufs_vaddr[0]) {
+ dma_free_coherent(0, cam->vf_bufs_size[0],
+ cam->vf_bufs_vaddr[0],
+ (dma_addr_t) cam->vf_bufs[0]);
+ cam->vf_bufs_vaddr[0] = NULL;
+ cam->vf_bufs[0] = 0;
+ }
+ if (cam->vf_bufs_vaddr[1]) {
+ dma_free_coherent(0, cam->vf_bufs_size[1],
+ cam->vf_bufs_vaddr[1],
+ (dma_addr_t) cam->vf_bufs[1]);
+ cam->vf_bufs_vaddr[1] = NULL;
+ cam->vf_bufs[1] = 0;
+ }
+out_2:
+ return err;
+}
+
+/*!
+ * Enable encoder task
+ * @param private struct cam_data * mxc capture instance
+ *
+ * @return status
+ */
+static int csi_enc_enabling_tasks(void *private)
+{
+ cam_data *cam = (cam_data *) private;
+ int err = 0;
+ CAMERA_TRACE("IPU:In csi_enc_enabling_tasks\n");
+
+ ipu_clear_irq(cam->ipu, IPU_IRQ_CSI0_OUT_EOF + cam->csi);
+ err = ipu_request_irq(cam->ipu, IPU_IRQ_CSI0_OUT_EOF + cam->csi,
+ csi_enc_callback, 0, "Mxc Camera", cam);
+ if (err != 0) {
+ printk(KERN_ERR "Error registering CSI_OUT_EOF irq\n");
+ return err;
+ }
+
+ INIT_WORK(&cam->csi_work_struct, csi_buf_work_func);
+
+ err = csi_enc_setup(cam);
+ if (err != 0) {
+ printk(KERN_ERR "csi_enc_setup %d\n", err);
+ goto out1;
+ }
+
+ return err;
+out1:
+ ipu_free_irq(cam->ipu, IPU_IRQ_CSI0_OUT_EOF + cam->csi, cam);
+ return err;
+}
+
+/*
+ * Function definitions
+ */
+
+/*!
+ * foreground_start - start the vf task
+ *
+ * @param private cam_data * mxc v4l2 main structure
+ *
+ */
+static int foreground_start(void *private)
+{
+ cam_data *cam = (cam_data *) private;
+ int err = 0, i = 0, screen_size;
+ char *base;
+
+ if (!cam) {
+ printk(KERN_ERR "private is NULL\n");
+ return -EIO;
+ }
+
+ if (cam->overlay_active == true) {
+ pr_debug("already started.\n");
+ return 0;
+ }
+
+ get_disp_ipu(cam);
+
+ for (i = 0; i < num_registered_fb; i++) {
+ char *idstr = registered_fb[i]->fix.id;
+ if (((strcmp(idstr, "DISP3 FG") == 0) && (cam->output < 3)) ||
+ ((strcmp(idstr, "DISP4 FG") == 0) && (cam->output >= 3))) {
+ fbi = registered_fb[i];
+ break;
+ }
+ }
+
+ if (fbi == NULL) {
+ printk(KERN_ERR "DISP FG fb not found\n");
+ return -EPERM;
+ }
+
+ fbvar = fbi->var;
+
+ /* Store the overlay frame buffer's original std */
+ cam->fb_origin_std = fbvar.nonstd;
+
+ if (cam->devtype == IMX5_V4L2 || cam->devtype == IMX6_V4L2) {
+ /* Use DP to do CSC so that we can get better performance */
+ vf_out_format = IPU_PIX_FMT_NV12;
+ fbvar.nonstd = vf_out_format;
+ } else {
+ vf_out_format = IPU_PIX_FMT_RGB565;
+ fbvar.nonstd = 0;
+ }
+
+ fbvar.bits_per_pixel = 16;
+ fbvar.xres = fbvar.xres_virtual = cam->win.w.width;
+ fbvar.yres = cam->win.w.height;
+ fbvar.yres_virtual = cam->win.w.height * 2;
+ fbvar.yoffset = 0;
+ fbvar.vmode &= ~FB_VMODE_YWRAP;
+ fbvar.accel_flags = FB_ACCEL_DOUBLE_FLAG;
+ fbvar.activate |= FB_ACTIVATE_FORCE;
+ fb_set_var(fbi, &fbvar);
+
+ ipu_disp_set_window_pos(disp_ipu, MEM_FG_SYNC, cam->win.w.left,
+ cam->win.w.top);
+
+ /* Fill black color for framebuffer */
+ base = (char *) fbi->screen_base;
+ screen_size = fbi->var.xres * fbi->var.yres;
+ if (cam->devtype == IMX5_V4L2 || cam->devtype == IMX6_V4L2) {
+ memset(base, 0, screen_size);
+ base += screen_size;
+ for (i = 0; i < screen_size / 2; i++, base++)
+ *base = 0x80;
+ } else {
+ for (i = 0; i < screen_size * 2; i++, base++)
+ *base = 0x00;
+ }
+
+ console_lock();
+ fb_blank(fbi, FB_BLANK_UNBLANK);
+ console_unlock();
+
+ /* correct display ch buffer address */
+ ipu_update_channel_buffer(disp_ipu, MEM_FG_SYNC, IPU_INPUT_BUFFER,
+ 0, fbi->fix.smem_start +
+ (fbi->fix.line_length * fbvar.yres));
+ ipu_update_channel_buffer(disp_ipu, MEM_FG_SYNC, IPU_INPUT_BUFFER,
+ 1, fbi->fix.smem_start);
+
+ err = csi_enc_enabling_tasks(cam);
+ if (err != 0) {
+ printk(KERN_ERR "Error csi enc enable fail\n");
+ return err;
+ }
+
+ cam->overlay_active = true;
+ return err;
+
+}
+
+/*!
+ * foreground_stop - stop the vf task
+ *
+ * @param private cam_data * mxc v4l2 main structure
+ *
+ */
+static int foreground_stop(void *private)
+{
+ cam_data *cam = (cam_data *) private;
+ int err = 0, i = 0;
+ struct fb_info *fbi = NULL;
+ struct fb_var_screeninfo fbvar;
+ ipu_channel_t chan = (cam->csi == 0) ? CSI_MEM0 : CSI_MEM1;
+
+#ifdef CONFIG_MXC_MIPI_CSI2
+ void *mipi_csi2_info;
+ int ipu_id;
+ int csi_id;
+#endif
+
+ if (cam->overlay_active == false)
+ return 0;
+
+ err = ipu_disable_channel(cam->ipu, chan, true);
+
+ ipu_uninit_channel(cam->ipu, chan);
+
+ csi_buffer_num = 0;
+ buffer_num = 0;
+
+ for (i = 0; i < num_registered_fb; i++) {
+ char *idstr = registered_fb[i]->fix.id;
+ if (((strcmp(idstr, "DISP3 FG") == 0) && (cam->output < 3)) ||
+ ((strcmp(idstr, "DISP4 FG") == 0) && (cam->output >= 3))) {
+ fbi = registered_fb[i];
+ break;
+ }
+ }
+
+ if (fbi == NULL) {
+ printk(KERN_ERR "DISP FG fb not found\n");
+ return -EPERM;
+ }
+
+ console_lock();
+ fb_blank(fbi, FB_BLANK_POWERDOWN);
+ console_unlock();
+
+ /* Set the overlay frame buffer std to what it is used to be */
+ fbvar = fbi->var;
+ fbvar.accel_flags = FB_ACCEL_TRIPLE_FLAG;
+ fbvar.nonstd = cam->fb_origin_std;
+ fbvar.activate |= FB_ACTIVATE_FORCE;
+ fb_set_var(fbi, &fbvar);
+
+#ifdef CONFIG_MXC_MIPI_CSI2
+ mipi_csi2_info = mipi_csi2_get_info();
+
+ if (mipi_csi2_info) {
+ if (mipi_csi2_get_status(mipi_csi2_info)) {
+ ipu_id = mipi_csi2_get_bind_ipu(mipi_csi2_info);
+ csi_id = mipi_csi2_get_bind_csi(mipi_csi2_info);
+
+ if (cam->ipu == ipu_get_soc(ipu_id)
+ && cam->csi == csi_id)
+ mipi_csi2_pixelclk_disable(mipi_csi2_info);
+ }
+ }
+#endif
+
+ flush_work(&cam->csi_work_struct);
+ cancel_work_sync(&cam->csi_work_struct);
+
+ if (cam->vf_bufs_vaddr[0]) {
+ dma_free_coherent(0, cam->vf_bufs_size[0],
+ cam->vf_bufs_vaddr[0],
+ (dma_addr_t) cam->vf_bufs[0]);
+ cam->vf_bufs_vaddr[0] = NULL;
+ cam->vf_bufs[0] = 0;
+ }
+ if (cam->vf_bufs_vaddr[1]) {
+ dma_free_coherent(0, cam->vf_bufs_size[1],
+ cam->vf_bufs_vaddr[1],
+ (dma_addr_t) cam->vf_bufs[1]);
+ cam->vf_bufs_vaddr[1] = NULL;
+ cam->vf_bufs[1] = 0;
+ }
+
+ cam->overlay_active = false;
+ return err;
+}
+
+/*!
+ * Enable csi
+ * @param private struct cam_data * mxc capture instance
+ *
+ * @return status
+ */
+static int foreground_enable_csi(void *private)
+{
+ cam_data *cam = (cam_data *) private;
+
+ return ipu_enable_csi(cam->ipu, cam->csi);
+}
+
+/*!
+ * Disable csi
+ * @param private struct cam_data * mxc capture instance
+ *
+ * @return status
+ */
+static int foreground_disable_csi(void *private)
+{
+ cam_data *cam = (cam_data *) private;
+
+ /* free csi eof irq firstly.
+ * when disable csi, wait for idmac eof.
+ * it requests eof irq again */
+ ipu_free_irq(cam->ipu, IPU_IRQ_CSI0_OUT_EOF + cam->csi, cam);
+
+ return ipu_disable_csi(cam->ipu, cam->csi);
+}
+
+/*!
+ * function to select foreground as the working path
+ *
+ * @param private cam_data * mxc v4l2 main structure
+ *
+ * @return status
+ */
+int foreground_sdc_select(void *private)
+{
+ cam_data *cam;
+ int err = 0;
+ if (private) {
+ cam = (cam_data *) private;
+ cam->vf_start_sdc = foreground_start;
+ cam->vf_stop_sdc = foreground_stop;
+ cam->vf_enable_csi = foreground_enable_csi;
+ cam->vf_disable_csi = foreground_disable_csi;
+ cam->overlay_active = false;
+ } else
+ err = -EIO;
+
+ return err;
+}
+EXPORT_SYMBOL(foreground_sdc_select);
+
+/*!
+ * function to de-select foreground as the working path
+ *
+ * @param private cam_data * mxc v4l2 main structure
+ *
+ * @return int
+ */
+int foreground_sdc_deselect(void *private)
+{
+ cam_data *cam;
+
+ if (private) {
+ cam = (cam_data *) private;
+ cam->vf_start_sdc = NULL;
+ cam->vf_stop_sdc = NULL;
+ cam->vf_enable_csi = NULL;
+ cam->vf_disable_csi = NULL;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(foreground_sdc_deselect);
+
+/*!
+ * Init viewfinder task.
+ *
+ * @return Error code indicating success or failure
+ */
+__init int foreground_sdc_init(void)
+{
+ return 0;
+}
+
+/*!
+ * Deinit viewfinder task.
+ *
+ * @return Error code indicating success or failure
+ */
+void __exit foreground_sdc_exit(void)
+{
+}
+
+module_init(foreground_sdc_init);
+module_exit(foreground_sdc_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("IPU PRP VF SDC Driver");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-24 19:06:05 +0000