diff options
Diffstat (limited to 'drivers/gpu/drm/gma500/mdfld_dsi_output.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/mdfld_dsi_output.c | 603 |
1 files changed, 0 insertions, 603 deletions
diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_output.c b/drivers/gpu/drm/gma500/mdfld_dsi_output.c deleted file mode 100644 index 4aab76613bd9..000000000000 --- a/drivers/gpu/drm/gma500/mdfld_dsi_output.c +++ /dev/null @@ -1,603 +0,0 @@ -/* - * 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 <linux/delay.h> -#include <linux/moduleparam.h> -#include <linux/pm_runtime.h> -#include <linux/gpio/consumer.h> - -#include <asm/intel_scu_ipc.h> - -#include "mdfld_dsi_dpi.h" -#include "mdfld_dsi_output.h" -#include "mdfld_dsi_pkg_sender.h" -#include "mdfld_output.h" -#include "tc35876x-dsi-lvds.h" - -/* get the LABC from command line. */ -static int LABC_control = 1; - -#ifdef MODULE -module_param(LABC_control, int, 0644); -#else - -static int __init parse_LABC_control(char *arg) -{ - /* LABC control can be passed in as a cmdline parameter */ - /* to enable this feature add LABC=1 to cmdline */ - /* to disable this feature add LABC=0 to cmdline */ - if (!arg) - return -EINVAL; - - if (!strcasecmp(arg, "0")) - LABC_control = 0; - else if (!strcasecmp(arg, "1")) - LABC_control = 1; - - return 0; -} -early_param("LABC", parse_LABC_control); -#endif - -/** - * 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; - - /* 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) - DRM_ERROR("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; - struct drm_psb_private *dev_priv; - u32 gen_ctrl_val; - - if (!sender) { - DRM_ERROR("No sender found\n"); - return; - } - - dev = sender->dev; - dev_priv = dev->dev_private; - - /* Set default display backlight value to 85% (0xd8)*/ - mdfld_dsi_send_mcs_short(sender, write_display_brightness, 0xd8, 1, - true); - - /* Set minimum brightness setting of CABC function to 20% (0x33)*/ - mdfld_dsi_send_mcs_short(sender, write_cabc_min_bright, 0x33, 1, true); - - /* Enable backlight or/and LABC */ - gen_ctrl_val = BRIGHT_CNTL_BLOCK_ON | DISPLAY_DIMMING_ON | - BACKLIGHT_ON; - if (LABC_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(sender, write_ctrl_display, (u8)gen_ctrl_val, - 1, true); - - mdfld_dsi_send_mcs_short(sender, write_ctrl_cabc, UI_IMAGE, 1, true); -} - -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 = 0; - int p_type = TMD_VID; - - if (!dev || (pipe != 0 && pipe != 2)) { - DRM_ERROR("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) { - DRM_ERROR("No sender found\n"); - return; - } - - gen_ctrl_val = (level * 0xff / MDFLD_DSI_BRIGHTNESS_MAX_LEVEL) & 0xff; - - dev_dbg(sender->dev->dev, "pipe = %d, gen_ctrl_val = %d.\n", - pipe, gen_ctrl_val); - - if (p_type == TMD_VID) { - /* Set display backlight value */ - mdfld_dsi_send_mcs_short(sender, tmd_write_display_brightness, - (u8)gen_ctrl_val, 1, true); - } else { - /* Set display backlight value */ - mdfld_dsi_send_mcs_short(sender, write_display_brightness, - (u8)gen_ctrl_val, 1, true); - - /* Enable backlight control */ - if (level == 0) - gen_ctrl_val = 0; - else - gen_ctrl_val = dev_priv->mipi_ctrl_display; - - mdfld_dsi_send_mcs_short(sender, write_ctrl_display, - (u8)gen_ctrl_val, 1, true); - } -} - -static int mdfld_dsi_get_panel_status(struct mdfld_dsi_config *dsi_config, - u8 dcs, u32 *data, bool hs) -{ - struct mdfld_dsi_pkg_sender *sender - = mdfld_dsi_get_pkg_sender(dsi_config); - - if (!sender || !data) { - DRM_ERROR("Invalid parameter\n"); - return -EINVAL; - } - - return mdfld_dsi_read_mcs(sender, dcs, data, 1, hs); -} - -int mdfld_dsi_get_power_mode(struct mdfld_dsi_config *dsi_config, u32 *mode, - bool hs) -{ - if (!dsi_config || !mode) { - DRM_ERROR("Invalid parameter\n"); - return -EINVAL; - } - - return mdfld_dsi_get_panel_status(dsi_config, 0x0a, mode, hs); -} - -/* - * 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))) { - DRM_ERROR("Invalid parameters\n"); - return; - } - - mdfld_dsi_dpi_controller_init(dsi_config, pipe); -} - -static void mdfld_dsi_connector_save(struct drm_connector *connector) -{ -} - -static void mdfld_dsi_connector_restore(struct drm_connector *connector) -{ -} - -/* FIXME: start using the force parameter */ -static enum drm_connector_status -mdfld_dsi_connector_detect(struct drm_connector *connector, bool force) -{ - struct mdfld_dsi_connector *dsi_connector - = mdfld_dsi_connector(connector); - - dsi_connector->status = connector_status_connected; - - 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 gma_crtc *gma_crtc = to_gma_crtc(encoder->crtc); - bool centerechange; - uint64_t val; - - if (!gma_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_object_property_get_value(&connector->base, property, &val)) - goto set_prop_error; - - if (val == value) - goto set_prop_done; - - if (drm_object_property_set_value(&connector->base, - property, value)) - goto set_prop_error; - - centerechange = (val == DRM_MODE_SCALE_NO_SCALE) || - (value == DRM_MODE_SCALE_NO_SCALE); - - if (gma_crtc->saved_mode.hdisplay != 0 && - gma_crtc->saved_mode.vdisplay != 0) { - if (centerechange) { - if (!drm_crtc_helper_set_mode(encoder->crtc, - &gma_crtc->saved_mode, - encoder->crtc->x, - encoder->crtc->y, - encoder->crtc->primary->fb)) - goto set_prop_error; - } else { - const struct drm_encoder_helper_funcs *funcs = - encoder->helper_private; - funcs->mode_set(encoder, - &gma_crtc->saved_mode, - &gma_crtc->saved_adjusted_mode); - } - } - } else if (!strcmp(property->name, "backlight") && encoder) { - if (drm_object_property_set_value(&connector->base, property, - value)) - goto set_prop_error; - else - gma_backlight_set(encoder->dev, value); - } -set_prop_done: - return 0; -set_prop_error: - return -1; -} - -static void mdfld_dsi_connector_destroy(struct drm_connector *connector) -{ - struct mdfld_dsi_connector *dsi_connector = - mdfld_dsi_connector(connector); - struct mdfld_dsi_pkg_sender *sender; - - if (!dsi_connector) - return; - drm_connector_unregister(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 mdfld_dsi_connector *dsi_connector = - mdfld_dsi_connector(connector); - 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; - - 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; - } - DRM_ERROR("Didn't get any modes!\n"); - return 0; -} - -static enum drm_mode_status mdfld_dsi_connector_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - struct mdfld_dsi_connector *dsi_connector = - mdfld_dsi_connector(connector); - struct mdfld_dsi_config *dsi_config = - mdfld_dsi_get_config(dsi_connector); - struct drm_display_mode *fixed_mode = dsi_config->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(panel fitting) later. - **/ - if (fixed_mode) { - if (mode->hdisplay != fixed_mode->hdisplay) - return MODE_PANEL; - - if (mode->vdisplay != fixed_mode->vdisplay) - return MODE_PANEL; - } - - return MODE_OK; -} - -static struct drm_encoder *mdfld_dsi_connector_best_encoder( - struct drm_connector *connector) -{ - struct mdfld_dsi_connector *dsi_connector = - mdfld_dsi_connector(connector); - struct mdfld_dsi_config *dsi_config = - mdfld_dsi_get_config(dsi_connector); - return &dsi_config->encoder->base.base; -} - -/*DSI connector funcs*/ -static const struct drm_connector_funcs mdfld_dsi_connector_funcs = { - .dpms = drm_helper_connector_dpms, - .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) { - DRM_ERROR("Invalid parameters"); - return -EINVAL; - } - - config->bpp = 24; - if (mdfld_get_panel_type(dev, pipe) == TC35876X) - config->lane_count = 4; - else - config->lane_count = 2; - config->channel_num = 0; - - if (mdfld_get_panel_type(dev, pipe) == TMD_VID) - config->video_mode = MDFLD_DSI_VIDEO_NON_BURST_MODE_SYNC_PULSE; - else if (mdfld_get_panel_type(dev, pipe) == TC35876X) - config->video_mode = - MDFLD_DSI_VIDEO_NON_BURST_MODE_SYNC_EVENTS; - else - config->video_mode = MDFLD_DSI_VIDEO_BURST_MODE; - - return 0; -} - -int mdfld_dsi_panel_reset(struct drm_device *ddev, int pipe) -{ - struct device *dev = ddev->dev; - struct gpio_desc *gpiod; - - /* - * Raise the GPIO reset line for the corresponding pipe to HIGH, - * this is probably because it is active low so this takes the - * respective pipe out of reset. (We have no code to put it back - * into reset in this driver.) - */ - switch (pipe) { - case 0: - gpiod = gpiod_get(dev, "dsi-pipe0-reset", GPIOD_OUT_HIGH); - if (IS_ERR(gpiod)) - return PTR_ERR(gpiod); - break; - case 2: - gpiod = gpiod_get(dev, "dsi-pipe2-reset", GPIOD_OUT_HIGH); - if (IS_ERR(gpiod)) - return PTR_ERR(gpiod); - break; - default: - DRM_DEV_ERROR(dev, "Invalid output pipe\n"); - return -EINVAL; - } - gpiod_put(gpiod); - - /* Flush posted writes on the device */ - gpiod = gpiod_get(dev, "dsi-pipe0-reset", GPIOD_ASIS); - if (IS_ERR(gpiod)) - return PTR_ERR(gpiod); - gpiod_get_value(gpiod); - gpiod_put(gpiod); - - return 0; -} - -/* - * 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, - const struct panel_funcs *p_vid_funcs) -{ - struct mdfld_dsi_config *dsi_config; - struct mdfld_dsi_connector *dsi_connector; - 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 (pipe != 0 && pipe != 2) { - DRM_ERROR("Invalid parameter\n"); - return; - } - - /*create a new connector*/ - dsi_connector = kzalloc(sizeof(struct mdfld_dsi_connector), GFP_KERNEL); - if (!dsi_connector) { - DRM_ERROR("No memory"); - return; - } - - dsi_connector->pipe = pipe; - - dsi_config = kzalloc(sizeof(struct mdfld_dsi_config), - GFP_KERNEL); - if (!dsi_config) { - DRM_ERROR("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; - - 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) { - DRM_ERROR("No panel 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 { - DRM_ERROR("Trying to init MIPI1 before MIPI0\n"); - goto dsi_init_err0; - } - - - connector = &dsi_connector->base.base; - dsi_connector->base.save = mdfld_dsi_connector_save; - dsi_connector->base.restore = mdfld_dsi_connector_restore; - - drm_connector_init(dev, connector, &mdfld_dsi_connector_funcs, - DRM_MODE_CONNECTOR_LVDS); - 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_object_attach_property(&connector->base, - dev->mode_config.scaling_mode_property, - DRM_MODE_SCALE_FULLSCREEN); - drm_object_attach_property(&connector->base, - 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; - } - - encoder = mdfld_dsi_dpi_init(dev, dsi_connector, p_vid_funcs); - if (!encoder) { - DRM_ERROR("Create DPI encoder failed\n"); - goto dsi_init_err1; - } - encoder->private = dsi_config; - dsi_config->encoder = encoder; - encoder->base.type = (pipe == 0) ? INTEL_OUTPUT_MIPI : - INTEL_OUTPUT_MIPI2; - drm_connector_register(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); -} |