| /* |
| * 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> |
| */ |
| |
| #ifndef __MDFLD_DSI_DBI_H__ |
| #define __MDFLD_DSI_DBI_H__ |
| |
| #include <linux/backlight.h> |
| #include <drm/drmP.h> |
| #include <drm/drm.h> |
| #include <drm/drm_crtc.h> |
| #include <drm/drm_edid.h> |
| |
| #include "psb_drv.h" |
| #include "psb_intel_drv.h" |
| #include "psb_intel_reg.h" |
| #include "power.h" |
| |
| #include "mdfld_dsi_output.h" |
| #include "mdfld_output.h" |
| |
| /* |
| * DBI encoder which inherits from mdfld_dsi_encoder |
| */ |
| struct mdfld_dsi_dbi_output { |
| struct mdfld_dsi_encoder base; |
| struct drm_display_mode *panel_fixed_mode; |
| u8 last_cmd; |
| u8 lane_count; |
| u8 channel_num; |
| struct drm_device *dev; |
| |
| /* Backlight operations */ |
| |
| /* DSR timer */ |
| u32 dsr_idle_count; |
| bool dsr_fb_update_done; |
| |
| /* Mode setting flags */ |
| u32 mode_flags; |
| |
| /* Panel status */ |
| bool dbi_panel_on; |
| bool first_boot; |
| struct panel_funcs *p_funcs; |
| |
| /* DPU */ |
| u32 *dbi_cb_addr; |
| u32 dbi_cb_phy; |
| spinlock_t cb_lock; |
| u32 cb_write; |
| }; |
| |
| #define MDFLD_DSI_DBI_OUTPUT(dsi_encoder) \ |
| container_of(dsi_encoder, struct mdfld_dsi_dbi_output, base) |
| |
| struct mdfld_dbi_dsr_info { |
| int dbi_output_num; |
| struct mdfld_dsi_dbi_output *dbi_outputs[2]; |
| |
| u32 dsr_idle_count; |
| }; |
| |
| #define DBI_CB_TIMEOUT_COUNT 0xffff |
| |
| /* Offsets */ |
| #define CMD_MEM_ADDR_OFFSET 0 |
| |
| #define CMD_DATA_SRC_SYSTEM_MEM 0 |
| #define CMD_DATA_SRC_PIPE 1 |
| |
| static inline int mdfld_dsi_dbi_fifo_ready(struct mdfld_dsi_dbi_output *dbi_output) |
| { |
| struct drm_device *dev = dbi_output->dev; |
| u32 retry = DBI_CB_TIMEOUT_COUNT; |
| int reg_offset = (dbi_output->channel_num == 1) ? MIPIC_REG_OFFSET : 0; |
| int ret = 0; |
| |
| /* Query the dbi fifo status*/ |
| while (retry--) { |
| if (REG_READ(MIPIA_GEN_FIFO_STAT_REG + reg_offset) & (1 << 27)) |
| break; |
| } |
| |
| if (!retry) { |
| DRM_ERROR("Timeout waiting for DBI FIFO empty\n"); |
| ret = -EAGAIN; |
| } |
| return ret; |
| } |
| |
| static inline int mdfld_dsi_dbi_cmd_sent(struct mdfld_dsi_dbi_output *dbi_output) |
| { |
| struct drm_device *dev = dbi_output->dev; |
| u32 retry = DBI_CB_TIMEOUT_COUNT; |
| int reg_offset = (dbi_output->channel_num == 1) ? MIPIC_REG_OFFSET : 0; |
| int ret = 0; |
| |
| /* Query the command execution status */ |
| while (retry--) |
| if (!(REG_READ(MIPIA_CMD_ADD_REG + reg_offset) & (1 << 0))) |
| break; |
| |
| if (!retry) { |
| DRM_ERROR("Timeout waiting for DBI command status\n"); |
| ret = -EAGAIN; |
| } |
| |
| return ret; |
| } |
| |
| static inline int mdfld_dsi_dbi_cb_ready(struct mdfld_dsi_dbi_output *dbi_output) |
| { |
| int ret = 0; |
| |
| /* Query the command execution status*/ |
| ret = mdfld_dsi_dbi_cmd_sent(dbi_output); |
| if (ret) { |
| DRM_ERROR("Peripheral is busy\n"); |
| ret = -EAGAIN; |
| } |
| /* Query the dbi fifo status*/ |
| ret = mdfld_dsi_dbi_fifo_ready(dbi_output); |
| if (ret) { |
| DRM_ERROR("DBI FIFO is not empty\n"); |
| ret = -EAGAIN; |
| } |
| return ret; |
| } |
| |
| extern void mdfld_dsi_dbi_output_init(struct drm_device *dev, |
| struct psb_intel_mode_device *mode_dev, int pipe); |
| extern void mdfld_dsi_dbi_exit_dsr(struct drm_device *dev, u32 update_src); |
| extern void mdfld_dsi_dbi_enter_dsr(struct mdfld_dsi_dbi_output *dbi_output, |
| int pipe); |
| extern int mdfld_dbi_dsr_init(struct drm_device *dev); |
| extern void mdfld_dbi_dsr_exit(struct drm_device *dev); |
| extern struct mdfld_dsi_encoder *mdfld_dsi_dbi_init(struct drm_device *dev, |
| struct mdfld_dsi_connector *dsi_connector, |
| struct panel_funcs *p_funcs); |
| extern int mdfld_dsi_dbi_send_dcs(struct mdfld_dsi_dbi_output *dbi_output, |
| u8 dcs, u8 *param, u32 num, u8 data_src); |
| extern int mdfld_dsi_dbi_update_area(struct mdfld_dsi_dbi_output *dbi_output, |
| u16 x1, u16 y1, u16 x2, u16 y2); |
| extern int mdfld_dsi_dbi_update_power(struct mdfld_dsi_dbi_output *dbi_output, |
| int mode); |
| extern void mdfld_dsi_controller_dbi_init(struct mdfld_dsi_config *dsi_config, |
| int pipe); |
| |
| #endif /*__MDFLD_DSI_DBI_H__*/ |