diff options
Diffstat (limited to 'drivers/staging/gma500/mdfld_dsi_output.c')
| -rw-r--r-- | drivers/staging/gma500/mdfld_dsi_output.c | 1011 |
1 files changed, 1011 insertions, 0 deletions
diff --git a/drivers/staging/gma500/mdfld_dsi_output.c b/drivers/staging/gma500/mdfld_dsi_output.c new file mode 100644 index 000000000000..7536095c30a0 --- /dev/null +++ b/drivers/staging/gma500/mdfld_dsi_output.c @@ -0,0 +1,1011 @@ +/* + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Authors: + * jim liu <jim.liu@intel.com> + * Jackie Li<yaodong.li@intel.com> + */ + +#include "mdfld_dsi_output.h" +#include "mdfld_dsi_dbi.h" +#include "mdfld_dsi_dpi.h" +#include "mdfld_output.h" +#include <asm/intel_scu_ipc.h> +#include "mdfld_dsi_pkg_sender.h" +#include <linux/pm_runtime.h> + +#define MDFLD_DSI_BRIGHTNESS_MAX_LEVEL 100 + +static int CABC_control = 1; +static int LABC_control = 1; + +module_param (CABC_control, int, 0644); +module_param (LABC_control, int, 0644); + +/** + * make these MCS command global + * we don't need 'movl' everytime we send them. + * FIXME: these datas were provided by OEM, we should get them from GCT. + **/ +static u32 mdfld_dbi_mcs_hysteresis[] = { + 0x42000f57, 0x8c006400, 0xff00bf00, 0xffffffff, + 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, + 0x38000aff, 0x82005000, 0xff00ab00, 0xffffffff, + 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, + 0x000000ff, +}; + +static u32 mdfld_dbi_mcs_display_profile[] = { + 0x50281450, 0x0000c882, 0x00000000, 0x00000000, + 0x00000000, +}; + +static u32 mdfld_dbi_mcs_kbbc_profile[] = { + 0x00ffcc60, 0x00000000, 0x00000000, 0x00000000, +}; + +static u32 mdfld_dbi_mcs_gamma_profile[] = { + 0x81111158, 0x88888888, 0x88888888, +}; + +/* + * write hysteresis values. + */ +static void mdfld_dsi_write_hysteresis (struct mdfld_dsi_config *dsi_config, + int pipe) +{ + struct mdfld_dsi_pkg_sender *sender = mdfld_dsi_get_pkg_sender(dsi_config); + + if(!sender) { + WARN_ON(1); + return; + } + mdfld_dsi_send_mcs_long_hs(sender, + mdfld_dbi_mcs_hysteresis, + 17, + MDFLD_DSI_SEND_PACKAGE); +} + +/* + * write display profile values. + */ +static void mdfld_dsi_write_display_profile(struct mdfld_dsi_config *dsi_config, int pipe) +{ + struct mdfld_dsi_pkg_sender *sender = mdfld_dsi_get_pkg_sender(dsi_config); + + if(!sender) { + WARN_ON(1); + return; + } + mdfld_dsi_send_mcs_long_hs(sender, + mdfld_dbi_mcs_display_profile, + 5, + MDFLD_DSI_SEND_PACKAGE); +} + +/* + * write KBBC profile values. + */ +static void mdfld_dsi_write_kbbc_profile (struct mdfld_dsi_config * dsi_config, int pipe) +{ + struct mdfld_dsi_pkg_sender *sender = mdfld_dsi_get_pkg_sender(dsi_config); + + if(!sender) { + WARN_ON(1); + return; + } + mdfld_dsi_send_mcs_long_hs(sender, + mdfld_dbi_mcs_kbbc_profile, + 4, + MDFLD_DSI_SEND_PACKAGE); +} + +/* + * write gamma setting. + */ +static void mdfld_dsi_write_gamma_setting (struct mdfld_dsi_config *dsi_config, int pipe) +{ + struct mdfld_dsi_pkg_sender *sender = mdfld_dsi_get_pkg_sender(dsi_config); + + if(!sender) { + WARN_ON(1); + return; + } + mdfld_dsi_send_mcs_long_hs(sender, + mdfld_dbi_mcs_gamma_profile, + 3, + MDFLD_DSI_SEND_PACKAGE); +} + +/* + * Check and see if the generic control or data buffer is empty and ready. + */ +void mdfld_dsi_gen_fifo_ready (struct drm_device *dev, u32 gen_fifo_stat_reg, u32 fifo_stat) +{ + u32 GEN_BF_time_out_count = 0; + + /* Check MIPI Adatper command registers */ + for (GEN_BF_time_out_count = 0; GEN_BF_time_out_count < GEN_FB_TIME_OUT; GEN_BF_time_out_count++) + { + if ((REG_READ(gen_fifo_stat_reg) & fifo_stat) == fifo_stat) + break; + udelay (100); + } + + if (GEN_BF_time_out_count == GEN_FB_TIME_OUT) + dev_err(dev->dev, + "mdfld_dsi_gen_fifo_ready, Timeout. gen_fifo_stat_reg = 0x%x. \n", + gen_fifo_stat_reg); +} + +/* + * Manage the DSI MIPI keyboard and display brightness. + * FIXME: this is exported to OSPM code. should work out an specific + * display interface to OSPM. + */ +void mdfld_dsi_brightness_init(struct mdfld_dsi_config *dsi_config, int pipe) +{ + struct mdfld_dsi_pkg_sender *sender = mdfld_dsi_get_pkg_sender(dsi_config); + struct drm_device *dev = sender->dev; + struct drm_psb_private *dev_priv = dev->dev_private; + u32 gen_ctrl_val; + + if(!sender) { + WARN_ON(1); + return; + } + /* Set default display backlight value to 85% (0xd8)*/ + mdfld_dsi_send_mcs_short_hs(sender, + write_display_brightness, + 0xd8, + 1, + MDFLD_DSI_SEND_PACKAGE); + + /* Set minimum brightness setting of CABC function to 20% (0x33)*/ + mdfld_dsi_send_mcs_short_hs(sender, + write_cabc_min_bright, + 0x33, + 1, + MDFLD_DSI_SEND_PACKAGE); + + mdfld_dsi_write_hysteresis(dsi_config, pipe); + mdfld_dsi_write_display_profile (dsi_config, pipe); + mdfld_dsi_write_kbbc_profile (dsi_config, pipe); + mdfld_dsi_write_gamma_setting (dsi_config, pipe); + + /* Enable backlight or/and LABC */ + gen_ctrl_val = BRIGHT_CNTL_BLOCK_ON | DISPLAY_DIMMING_ON| BACKLIGHT_ON; + if (LABC_control == 1 || CABC_control == 1) + gen_ctrl_val |= DISPLAY_DIMMING_ON| DISPLAY_BRIGHTNESS_AUTO | GAMMA_AUTO; + + if (LABC_control == 1) + gen_ctrl_val |= AMBIENT_LIGHT_SENSE_ON; + + dev_priv->mipi_ctrl_display = gen_ctrl_val; + + mdfld_dsi_send_mcs_short_hs(sender, + write_ctrl_display, + (u8)gen_ctrl_val, + 1, + MDFLD_DSI_SEND_PACKAGE); + + if (CABC_control == 0) + return; + mdfld_dsi_send_mcs_short_hs(sender, + write_ctrl_cabc, + UI_IMAGE, + 1, + MDFLD_DSI_SEND_PACKAGE); +} + +/* + * Manage the mipi display brightness. + * TODO: refine this interface later + */ +void mdfld_dsi_brightness_control(struct drm_device *dev, int pipe, int level) +{ + struct mdfld_dsi_pkg_sender *sender; + struct drm_psb_private *dev_priv; + struct mdfld_dsi_config *dsi_config; + u32 gen_ctrl_val; + int p_type; + + if (!dev || (pipe != 0 && pipe != 2)) { + dev_err(dev->dev, "Invalid parameter\n"); + return; + } + + p_type = mdfld_get_panel_type(dev, 0); + + dev_priv = dev->dev_private; + + if(pipe) + dsi_config = dev_priv->dsi_configs[1]; + else + dsi_config = dev_priv->dsi_configs[0]; + + sender = mdfld_dsi_get_pkg_sender(dsi_config); + + if(!sender) { + WARN_ON(1); + return; + } + + gen_ctrl_val = ((level * 0xff) / MDFLD_DSI_BRIGHTNESS_MAX_LEVEL) & 0xff; + + dev_dbg(dev->dev, + "pipe = %d, gen_ctrl_val = %d. \n", pipe, gen_ctrl_val); + + if(p_type == TMD_VID || p_type == TMD_CMD){ + /* Set display backlight value */ + mdfld_dsi_send_mcs_short_hs(sender, + tmd_write_display_brightness, + (u8)gen_ctrl_val, + 1, + MDFLD_DSI_SEND_PACKAGE); + } else { + /* Set display backlight value */ + mdfld_dsi_send_mcs_short_hs(sender, + write_display_brightness, + (u8)gen_ctrl_val, + 1, + MDFLD_DSI_SEND_PACKAGE); + + + /* Enable backlight control */ + if (level == 0) + gen_ctrl_val = 0; + else + gen_ctrl_val = dev_priv->mipi_ctrl_display; + + mdfld_dsi_send_mcs_short_hs(sender, + write_ctrl_display, + (u8)gen_ctrl_val, + 1, + MDFLD_DSI_SEND_PACKAGE); + } +} + +/* + * shut down DSI controller + */ +void mdfld_dsi_controller_shutdown(struct mdfld_dsi_config * dsi_config, int pipe) +{ + struct drm_device * dev; + u32 reg_offset = pipe ? MIPIC_REG_OFFSET : 0; + int retry = 100; + + if (!dsi_config) { + WARN_ON(1); + return; + } + + dev = dsi_config->dev; + + if (!gma_power_begin(dev, true)) { + dev_err(dev->dev, "hw begin failed\n"); + return; + } + + if(!(REG_READ(MIPIA_DEVICE_READY_REG + reg_offset) & DSI_DEVICE_READY)) + goto shutdown_out; + + /* Send shut down package, clean packet send bit first */ + if(REG_READ(MIPIA_INTR_STAT_REG + reg_offset) & DSI_INTR_STATE_SPL_PKG_SENT) { + REG_WRITE((MIPIA_INTR_STAT_REG + reg_offset), + (REG_READ(MIPIA_INTR_STAT_REG + reg_offset) | DSI_INTR_STATE_SPL_PKG_SENT)); + } + + /*send shut down package in HS*/ + REG_WRITE((MIPIA_DPI_CONTROL_REG + reg_offset), DSI_DPI_CTRL_HS_SHUTDOWN); + + + /* + * make sure shut down is sent. + * FIXME: add max retry counter + */ + while(!(REG_READ(MIPIA_INTR_STAT_REG + reg_offset) & DSI_INTR_STATE_SPL_PKG_SENT)) { + retry--; + + if(!retry) { + dev_err(dev->dev, "timeout\n"); + break; + } + } + + /*sleep 1 ms to ensure shutdown finished*/ + msleep(100); + + /*un-ready device*/ + REG_WRITE((MIPIA_DEVICE_READY_REG + reg_offset), + (REG_READ(MIPIA_DEVICE_READY_REG + reg_offset) & ~DSI_DEVICE_READY)); + +shutdown_out: + gma_power_end(dev); +} + +void mdfld_dsi_controller_startup(struct mdfld_dsi_config * dsi_config, int pipe) +{ + struct drm_device * dev; + u32 reg_offset = pipe ? MIPIC_REG_OFFSET : 0; + int retry = 100; + + + if (!dsi_config) { + WARN_ON(1); + return; + } + + dev = dsi_config->dev; + dev_dbg(dev->dev, "starting up DSI controller on pipe %d...\n", pipe); + + if (!gma_power_begin(dev, true)) { + dev_err(dev->dev, "hw begin failed\n"); + return; + } + + if((REG_READ(MIPIA_DEVICE_READY_REG + reg_offset) & DSI_DEVICE_READY)) + goto startup_out; + + /*if config DPI, turn on DPI interface*/ + if(dsi_config->type == MDFLD_DSI_ENCODER_DPI) { + if(REG_READ(MIPIA_INTR_STAT_REG + reg_offset) & DSI_INTR_STATE_SPL_PKG_SENT) { + REG_WRITE((MIPIA_INTR_STAT_REG + reg_offset), DSI_INTR_STATE_SPL_PKG_SENT); + } + + REG_WRITE((MIPIA_DPI_CONTROL_REG + reg_offset), DSI_DPI_CTRL_HS_TURN_ON); + + /* + * make sure shut down is sent. + * FIXME: add max retry counter + */ + while(!(REG_READ(MIPIA_INTR_STAT_REG + reg_offset) & DSI_INTR_STATE_SPL_PKG_SENT)) { + retry--; + if(!retry) { + dev_err(dev->dev, "timeout\n"); + break; + } + } + + msleep(100); + } + + /*set device ready*/ + REG_WRITE((MIPIA_DEVICE_READY_REG + reg_offset), + (REG_READ(MIPIA_DEVICE_READY_REG + reg_offset) | DSI_DEVICE_READY)); + +startup_out: + gma_power_end(dev); +} + + +static int mdfld_dsi_get_panel_status(struct mdfld_dsi_config *dsi_config, + u8 dcs, + u32 *data, + u8 transmission) +{ + struct mdfld_dsi_pkg_sender *sender + = mdfld_dsi_get_pkg_sender(dsi_config); + + if (!sender || !data) { + DRM_ERROR("Invalid parameter\n"); + return -EINVAL; + } + + if (transmission == MDFLD_DSI_HS_TRANSMISSION) + return mdfld_dsi_read_mcs_hs(sender, dcs, data, 1); + else if (transmission == MDFLD_DSI_LP_TRANSMISSION) + return mdfld_dsi_read_mcs_lp(sender, dcs, data, 1); + else + return -EINVAL; +} + +int mdfld_dsi_get_power_mode(struct mdfld_dsi_config *dsi_config, + u32 *mode, + u8 transmission) +{ + if (!dsi_config || !mode) { + DRM_ERROR("Invalid parameter\n"); + return -EINVAL; + } + + return mdfld_dsi_get_panel_status(dsi_config, 0x0a, mode, transmission); +} + +int mdfld_dsi_get_diagnostic_result(struct mdfld_dsi_config *dsi_config, + u32 *result, + u8 transmission) +{ + if (!dsi_config || !result) { + DRM_ERROR("Invalid parameter\n"); + return -EINVAL; + } + + return mdfld_dsi_get_panel_status(dsi_config, 0x0f, result, + transmission); +} + +/* + * NOTE: this function was used by OSPM. + * TODO: will be removed later, should work out display interfaces for OSPM + */ +void mdfld_dsi_controller_init(struct mdfld_dsi_config * dsi_config, int pipe) +{ + if(!dsi_config || ((pipe != 0) && (pipe != 2))) { + WARN_ON(1); + return; + } + + if(dsi_config->type) + mdfld_dsi_dpi_controller_init(dsi_config, pipe); + else + mdfld_dsi_controller_dbi_init(dsi_config, pipe); +} + +static void mdfld_dsi_connector_save(struct drm_connector * connector) +{ +} + +static void mdfld_dsi_connector_restore(struct drm_connector * connector) +{ +} + +static enum drm_connector_status mdfld_dsi_connector_detect(struct drm_connector * connector, bool force) +{ + struct psb_intel_output *psb_output + = to_psb_intel_output(connector); + struct mdfld_dsi_connector *dsi_connector + = MDFLD_DSI_CONNECTOR(psb_output); + return dsi_connector->status; +} + +static int mdfld_dsi_connector_set_property(struct drm_connector *connector, + struct drm_property *property, + uint64_t value) +{ + struct drm_encoder *encoder = connector->encoder; + + if (!strcmp(property->name, "scaling mode") && encoder) { + struct psb_intel_crtc * psb_crtc = to_psb_intel_crtc(encoder->crtc); + bool bTransitionFromToCentered; + uint64_t curValue; + + if (!psb_crtc) + goto set_prop_error; + + switch (value) { + case DRM_MODE_SCALE_FULLSCREEN: + break; + case DRM_MODE_SCALE_NO_SCALE: + break; + case DRM_MODE_SCALE_ASPECT: + break; + default: + goto set_prop_error; + } + + if (drm_connector_property_get_value(connector, property, &curValue)) + goto set_prop_error; + + if (curValue == value) + goto set_prop_done; + + if (drm_connector_property_set_value(connector, property, value)) + goto set_prop_error; + + bTransitionFromToCentered = (curValue == DRM_MODE_SCALE_NO_SCALE) || + (value == DRM_MODE_SCALE_NO_SCALE); + + if (psb_crtc->saved_mode.hdisplay != 0 && + psb_crtc->saved_mode.vdisplay != 0) { + if (bTransitionFromToCentered) { + if (!drm_crtc_helper_set_mode(encoder->crtc, &psb_crtc->saved_mode, + encoder->crtc->x, encoder->crtc->y, encoder->crtc->fb)) + goto set_prop_error; + } else { + struct drm_encoder_helper_funcs *pEncHFuncs = encoder->helper_private; + pEncHFuncs->mode_set(encoder, &psb_crtc->saved_mode, + &psb_crtc->saved_adjusted_mode); + } + } +#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE + } else if (!strcmp(property->name, "backlight") && encoder) { + struct drm_psb_private *dev_priv = encoder->dev->dev_private; + struct backlight_device *psb_bd = dev_priv->backlight_device; + dev_dbg(encoder->dev->dev, "backlight level = %d\n", (int)value); + if (drm_connector_property_set_value(connector, property, value)) + goto set_prop_error; + else { + dev_dbg(encoder->dev->dev, + "set brightness to %d", (int)value); + if (psb_bd) { + psb_bd->props.brightness = value; + backlight_update_status(psb_bd); + } + } +#endif + } +set_prop_done: + return 0; +set_prop_error: + return -1; +} + +static void mdfld_dsi_connector_destroy(struct drm_connector *connector) +{ + struct psb_intel_output * psb_output = to_psb_intel_output(connector); + struct mdfld_dsi_connector * dsi_connector = MDFLD_DSI_CONNECTOR(psb_output); + struct mdfld_dsi_pkg_sender * sender; + + if(!dsi_connector) + return; + + drm_sysfs_connector_remove(connector); + drm_connector_cleanup(connector); + + sender = dsi_connector->pkg_sender; + + mdfld_dsi_pkg_sender_destroy(sender); + + kfree(dsi_connector); +} + +static int mdfld_dsi_connector_get_modes(struct drm_connector * connector) +{ + struct psb_intel_output * psb_output = to_psb_intel_output(connector); + struct mdfld_dsi_connector * dsi_connector = MDFLD_DSI_CONNECTOR(psb_output); + struct mdfld_dsi_config * dsi_config = mdfld_dsi_get_config(dsi_connector); + struct drm_display_mode * fixed_mode = dsi_config->fixed_mode; + struct drm_display_mode * dup_mode = NULL; + struct drm_device * dev = connector->dev; + + connector->display_info.min_vfreq = 0; + connector->display_info.max_vfreq = 200; + connector->display_info.min_hfreq = 0; + connector->display_info.max_hfreq = 200; + + if(fixed_mode) { + dev_dbg(dev->dev, "fixed_mode %dx%d\n", + fixed_mode->hdisplay, fixed_mode->vdisplay); + + dup_mode = drm_mode_duplicate(dev, fixed_mode); + drm_mode_probed_add(connector, dup_mode); + return 1; + } + dev_err(dev->dev, "Didn't get any modes!\n"); + return 0; +} + +static int mdfld_dsi_connector_mode_valid(struct drm_connector * connector, struct drm_display_mode * mode) +{ + struct psb_intel_output * psb_output = to_psb_intel_output(connector); + struct mdfld_dsi_connector * dsi_connector = MDFLD_DSI_CONNECTOR(psb_output); + struct mdfld_dsi_config * dsi_config = mdfld_dsi_get_config(dsi_connector); + struct drm_display_mode * fixed_mode = dsi_config->fixed_mode; + + dev_dbg(connector->dev->dev, "mode %p, fixed mode %p\n", + mode, fixed_mode); + + if(mode->flags & DRM_MODE_FLAG_DBLSCAN) + return MODE_NO_DBLESCAN; + + if(mode->flags & DRM_MODE_FLAG_INTERLACE) + return MODE_NO_INTERLACE; + + /** + * FIXME: current DC has no fitting unit, reject any mode setting request + * will figure out a way to do up-scaling(pannel fitting) later. + **/ + if(fixed_mode) { + if(mode->hdisplay != fixed_mode->hdisplay) + return MODE_PANEL; + + if(mode->vdisplay != fixed_mode->vdisplay) + return MODE_PANEL; + } + dev_dbg(connector->dev->dev, "mode ok\n"); + + return MODE_OK; +} + +static void mdfld_dsi_connector_dpms(struct drm_connector *connector, int mode) +{ +#ifdef CONFIG_PM_RUNTIME + struct drm_device * dev = connector->dev; + struct drm_psb_private * dev_priv = dev->dev_private; + bool panel_on, panel_on2; +#endif + /* First, execute DPMS */ + drm_helper_connector_dpms(connector, mode); + +#ifdef CONFIG_PM_RUNTIME + if(mdfld_panel_dpi(dev)) { + /* DPI panel */ + panel_on = dev_priv->dpi_panel_on; + panel_on2 = dev_priv->dpi_panel_on2; + } else { + /* DBI panel */ + panel_on = dev_priv->dbi_panel_on; + panel_on2 = dev_priv->dbi_panel_on2; + } + + /* Then check all display panels + monitors status */ + /* Make sure that the Display (B) sub-system status isn't i3 when + * R/W the DC register, otherwise "Fabric error" issue would occur + * during S0i3 state. */ + if(!panel_on && !panel_on2 && !(REG_READ(HDMIB_CONTROL) + & HDMIB_PORT_EN)) { + /* Request rpm idle */ + if(dev_priv->rpm_enabled) + pm_request_idle(&dev->pdev->dev); + } + /* + * if rpm wasn't enabled yet, try to allow it + * FIXME: won't enable rpm for DPI since DPI + * CRTC setting is a little messy now. + * Enable it later! + */ +#if 0 + if(!dev_priv->rpm_enabled && !mdfld_panel_dpi(dev)) + ospm_runtime_pm_allow(dev); +#endif +#endif +} + +static struct drm_encoder *mdfld_dsi_connector_best_encoder( + struct drm_connector *connector) +{ + struct psb_intel_output * psb_output = to_psb_intel_output(connector); + struct mdfld_dsi_connector * dsi_connector = MDFLD_DSI_CONNECTOR(psb_output); + struct mdfld_dsi_config * dsi_config = mdfld_dsi_get_config(dsi_connector); + struct mdfld_dsi_encoder * encoder = NULL; + + if(dsi_config->type == MDFLD_DSI_ENCODER_DBI) + encoder = dsi_config->encoders[MDFLD_DSI_ENCODER_DBI]; + else if (dsi_config->type == MDFLD_DSI_ENCODER_DPI) + encoder = dsi_config->encoders[MDFLD_DSI_ENCODER_DPI]; + + dev_dbg(connector->dev->dev, "get encoder %p\n", encoder); + + if(!encoder) { + dev_err(connector->dev->dev, + "Invalid encoder for type %d\n", dsi_config->type); + return NULL; + } + dsi_config->encoder = encoder; + return &encoder->base; +} + +/* DSI connector funcs */ +static const struct drm_connector_funcs mdfld_dsi_connector_funcs = { + .dpms = /*drm_helper_connector_dpms*/mdfld_dsi_connector_dpms, + .save = mdfld_dsi_connector_save, + .restore = mdfld_dsi_connector_restore, + .detect = mdfld_dsi_connector_detect, + .fill_modes = drm_helper_probe_single_connector_modes, + .set_property = mdfld_dsi_connector_set_property, + .destroy = mdfld_dsi_connector_destroy, +}; + +/* DSI connector helper funcs */ +static const struct drm_connector_helper_funcs mdfld_dsi_connector_helper_funcs = { + .get_modes = mdfld_dsi_connector_get_modes, + .mode_valid = mdfld_dsi_connector_mode_valid, + .best_encoder = mdfld_dsi_connector_best_encoder, +}; + +static int mdfld_dsi_get_default_config(struct drm_device * dev, + struct mdfld_dsi_config * config, int pipe) +{ + if(!dev || !config) { + WARN_ON(1); + return -EINVAL; + } + + config->bpp = 24; + config->type = mdfld_panel_dpi(dev); + config->lane_count = 2; + config->channel_num = 0; + /*NOTE: video mode is ignored when type is MDFLD_DSI_ENCODER_DBI*/ + if (mdfld_get_panel_type(dev, pipe) == TMD_VID) { + config->video_mode = MDFLD_DSI_VIDEO_NON_BURST_MODE_SYNC_PULSE; + } else { + config->video_mode = MDFLD_DSI_VIDEO_BURST_MODE; + } + + return 0; +} + +/* + * Returns the panel fixed mode from configuration. + */ +struct drm_display_mode * +mdfld_dsi_get_configuration_mode(struct mdfld_dsi_config * dsi_config, int pipe) +{ + struct drm_device *dev = dsi_config->dev; + struct drm_display_mode *mode; + struct drm_psb_private *dev_priv = dev->dev_private; + struct mrst_timing_info *ti = &dev_priv->gct_data.DTD; + bool use_gct = false; + + mode = kzalloc(sizeof(*mode), GFP_KERNEL); + if (!mode) { + dev_err(dev->dev, "Out of memory for mode\n"); + return NULL; + } + if (use_gct) { + dev_dbg(dev->dev, "gct find MIPI panel.\n"); + + mode->hdisplay = (ti->hactive_hi << 8) | ti->hactive_lo; + mode->vdisplay = (ti->vactive_hi << 8) | ti->vactive_lo; + mode->hsync_start = mode->hdisplay + \ + ((ti->hsync_offset_hi << 8) | \ + ti->hsync_offset_lo); + mode->hsync_end = mode->hsync_start + \ + ((ti->hsync_pulse_width_hi << 8) | \ + ti->hsync_pulse_width_lo); + mode->htotal = mode->hdisplay + ((ti->hblank_hi << 8) | \ + ti->hblank_lo); + mode->vsync_start = \ + mode->vdisplay + ((ti->vsync_offset_hi << 8) | \ + ti->vsync_offset_lo); + mode->vsync_end = \ + mode->vsync_start + ((ti->vsync_pulse_width_hi << 8) | \ + ti->vsync_pulse_width_lo); + mode->vtotal = mode->vdisplay + \ + ((ti->vblank_hi << 8) | ti->vblank_lo); + mode->clock = ti->pixel_clock * 10; + } else { + if(dsi_config->type == MDFLD_DSI_ENCODER_DPI) { + if (mdfld_get_panel_type(dev, pipe) == TMD_VID) { + mode->hdisplay = 480; + mode->vdisplay = 854; + mode->hsync_start = 487; + mode->hsync_end = 490; + mode->htotal = 499; + mode->vsync_start = 861; + mode->vsync_end = 865; + mode->vtotal = 873; + mode->clock = 33264; + } else { + mode->hdisplay = 864; + mode->vdisplay = 480; + mode->hsync_start = 873; + mode->hsync_end = 876; + mode->htotal = 887; + mode->vsync_start = 487; + mode->vsync_end = 490; + mode->vtotal = 499; + mode->clock = 33264; + } + } else if(dsi_config->type == MDFLD_DSI_ENCODER_DBI) { + mode->hdisplay = 864; + mode->vdisplay = 480; + mode->hsync_start = 872; + mode->hsync_end = 876; + mode->htotal = 884; + mode->vsync_start = 482; + mode->vsync_end = 494; + mode->vtotal = 486; + mode->clock = 25777; + + } + } + + drm_mode_set_name(mode); + drm_mode_set_crtcinfo(mode, 0); + + mode->type |= DRM_MODE_TYPE_PREFERRED; + + return mode; +} + +int mdfld_dsi_panel_reset(int pipe) +{ + unsigned gpio; + int ret = 0; + + switch (pipe) { + case 0: + gpio = 128; + break; + case 2: + gpio = 34; + break; + default: + DRM_ERROR("Invalid output\n"); + return -EINVAL; + } + + ret = gpio_request(gpio, "gfx"); + if (ret) { + DRM_ERROR("gpio_rqueset failed\n"); + return ret; + } + + ret = gpio_direction_output(gpio, 1); + if (ret) { + DRM_ERROR("gpio_direction_output failed\n"); + goto gpio_error; + } + + gpio_get_value(128); + +gpio_error: + if (gpio_is_valid(gpio)) + gpio_free(gpio); + + return ret; +} + +/* + * MIPI output init + * @dev drm device + * @pipe pipe number. 0 or 2 + * @config + * + * Do the initialization of a MIPI output, including create DRM mode objects + * initialization of DSI output on @pipe + */ +void mdfld_dsi_output_init(struct drm_device *dev, + int pipe, + struct mdfld_dsi_config *config, + struct panel_funcs* p_cmd_funcs, + struct panel_funcs* p_vid_funcs) +{ + struct mdfld_dsi_config * dsi_config; + struct mdfld_dsi_connector * dsi_connector; + struct psb_intel_output * psb_output; + struct drm_connector * connector; + struct mdfld_dsi_encoder * encoder; + struct drm_psb_private * dev_priv = dev->dev_private; + struct panel_info dsi_panel_info; + u32 width_mm, height_mm; + + dev_dbg(dev->dev, "init DSI output on pipe %d\n", pipe); + + if(!dev || ((pipe != 0) && (pipe != 2))) { + WARN_ON(1); + return; + } + + /*create a new connetor*/ + dsi_connector = kzalloc(sizeof(struct mdfld_dsi_connector), GFP_KERNEL); + if(!dsi_connector) { + DRM_ERROR("No memory"); + return; + } + + dsi_connector->pipe = pipe; + + /*set DSI config*/ + if(config) { + dsi_config = config; + } else { + dsi_config = kzalloc(sizeof(struct mdfld_dsi_config), GFP_KERNEL); + if(!dsi_config) { + dev_err(dev->dev, + "cannot allocate memory for DSI config\n"); + goto dsi_init_err0; + } + + mdfld_dsi_get_default_config(dev, dsi_config, pipe); + } + + dsi_connector->private = dsi_config; + + dsi_config->changed = 1; + dsi_config->dev = dev; + + /* Init fixed mode basing on DSI config type */ + if(dsi_config->type == MDFLD_DSI_ENCODER_DBI) { + dsi_config->fixed_mode = p_cmd_funcs->get_config_mode(dev); + if(p_cmd_funcs->get_panel_info(dev, pipe, &dsi_panel_info)) + goto dsi_init_err0; + } else if(dsi_config->type == MDFLD_DSI_ENCODER_DPI) { + dsi_config->fixed_mode = p_vid_funcs->get_config_mode(dev); + if(p_vid_funcs->get_panel_info(dev, pipe, &dsi_panel_info)) + goto dsi_init_err0; + } + + width_mm = dsi_panel_info.width_mm; + height_mm = dsi_panel_info.height_mm; + + dsi_config->mode = dsi_config->fixed_mode; + dsi_config->connector = dsi_connector; + + if(!dsi_config->fixed_mode) { + dev_err(dev->dev, "No pannel fixed mode was found\n"); + goto dsi_init_err0; + } + + if(pipe && dev_priv->dsi_configs[0]) { + dsi_config->dvr_ic_inited = 0; + dev_priv->dsi_configs[1] = dsi_config; + } else if(pipe == 0) { + dsi_config->dvr_ic_inited = 1; + dev_priv->dsi_configs[0] = dsi_config; + } else { + dev_err(dev->dev, "Trying to init MIPI1 before MIPI0\n"); + goto dsi_init_err0; + } + + /*init drm connector object*/ + psb_output = &dsi_connector->base; + + psb_output->type = (pipe == 0) ? INTEL_OUTPUT_MIPI : INTEL_OUTPUT_MIPI2; + + connector = &psb_output->base; + drm_connector_init(dev, connector, &mdfld_dsi_connector_funcs, DRM_MODE_CONNECTOR_MIPI); + drm_connector_helper_add(connector, &mdfld_dsi_connector_helper_funcs); + + connector->display_info.subpixel_order = SubPixelHorizontalRGB; + connector->display_info.width_mm = width_mm; + connector->display_info.height_mm = height_mm; + connector->interlace_allowed = false; + connector->doublescan_allowed = false; + + /* Attach properties */ + drm_connector_attach_property(connector, dev->mode_config.scaling_mode_property, DRM_MODE_SCALE_FULLSCREEN); + drm_connector_attach_property(connector, dev_priv->backlight_property, MDFLD_DSI_BRIGHTNESS_MAX_LEVEL); + + /* Init DSI package sender on this output */ + if (mdfld_dsi_pkg_sender_init(dsi_connector, pipe)) { + DRM_ERROR("Package Sender initialization failed on pipe %d\n", pipe); + goto dsi_init_err0; + } + + /* Init DBI & DPI encoders */ + if (p_cmd_funcs) { + encoder = mdfld_dsi_dbi_init(dev, dsi_connector, p_cmd_funcs); + if(!encoder) { + dev_err(dev->dev, "Create DBI encoder failed\n"); + goto dsi_init_err1; + } + encoder->private = dsi_config; + dsi_config->encoders[MDFLD_DSI_ENCODER_DBI] = encoder; + } + + if(p_vid_funcs) { + encoder = mdfld_dsi_dpi_init(dev, dsi_connector, p_vid_funcs); + if(!encoder) { + dev_err(dev->dev, "Create DPI encoder failed\n"); + goto dsi_init_err1; + } + encoder->private = dsi_config; + dsi_config->encoders[MDFLD_DSI_ENCODER_DPI] = encoder; + } + + drm_sysfs_connector_add(connector); + return; + + /*TODO: add code to destroy outputs on error*/ +dsi_init_err1: + /*destroy sender*/ + mdfld_dsi_pkg_sender_destroy(dsi_connector->pkg_sender); + + drm_connector_cleanup(connector); + kfree(dsi_config->fixed_mode); + kfree(dsi_config); +dsi_init_err0: + kfree(dsi_connector); +} |