174 lines
4.8 KiB
C
174 lines
4.8 KiB
C
/*
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* Copyright © 2010 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* jim liu <jim.liu@intel.com>
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* Jackie Li<yaodong.li@intel.com>
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*/
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#ifndef __MDFLD_DSI_DBI_H__
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#define __MDFLD_DSI_DBI_H__
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#include <linux/backlight.h>
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#include <drm/drmP.h>
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#include <drm/drm.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_edid.h>
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#include "psb_drv.h"
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#include "psb_intel_drv.h"
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#include "psb_intel_reg.h"
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#include "power.h"
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#include "mdfld_dsi_output.h"
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#include "mdfld_output.h"
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/*
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* DBI encoder which inherits from mdfld_dsi_encoder
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*/
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struct mdfld_dsi_dbi_output {
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struct mdfld_dsi_encoder base;
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struct drm_display_mode *panel_fixed_mode;
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u8 last_cmd;
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u8 lane_count;
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u8 channel_num;
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struct drm_device *dev;
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/* Backlight operations */
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/* DSR timer */
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u32 dsr_idle_count;
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bool dsr_fb_update_done;
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/* Mode setting flags */
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u32 mode_flags;
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/* Panel status */
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bool dbi_panel_on;
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bool first_boot;
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struct panel_funcs *p_funcs;
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/* DPU */
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u32 *dbi_cb_addr;
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u32 dbi_cb_phy;
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spinlock_t cb_lock;
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u32 cb_write;
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};
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#define MDFLD_DSI_DBI_OUTPUT(dsi_encoder) \
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container_of(dsi_encoder, struct mdfld_dsi_dbi_output, base)
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struct mdfld_dbi_dsr_info {
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int dbi_output_num;
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struct mdfld_dsi_dbi_output *dbi_outputs[2];
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u32 dsr_idle_count;
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};
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#define DBI_CB_TIMEOUT_COUNT 0xffff
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/* Offsets */
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#define CMD_MEM_ADDR_OFFSET 0
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#define CMD_DATA_SRC_SYSTEM_MEM 0
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#define CMD_DATA_SRC_PIPE 1
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static inline int mdfld_dsi_dbi_fifo_ready(struct mdfld_dsi_dbi_output *dbi_output)
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{
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struct drm_device *dev = dbi_output->dev;
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u32 retry = DBI_CB_TIMEOUT_COUNT;
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int reg_offset = (dbi_output->channel_num == 1) ? MIPIC_REG_OFFSET : 0;
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int ret = 0;
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/* Query the dbi fifo status*/
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while (retry--) {
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if (REG_READ(MIPIA_GEN_FIFO_STAT_REG + reg_offset) & (1 << 27))
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break;
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}
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if (!retry) {
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DRM_ERROR("Timeout waiting for DBI FIFO empty\n");
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ret = -EAGAIN;
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}
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return ret;
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}
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static inline int mdfld_dsi_dbi_cmd_sent(struct mdfld_dsi_dbi_output *dbi_output)
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{
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struct drm_device *dev = dbi_output->dev;
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u32 retry = DBI_CB_TIMEOUT_COUNT;
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int reg_offset = (dbi_output->channel_num == 1) ? MIPIC_REG_OFFSET : 0;
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int ret = 0;
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/* Query the command execution status */
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while (retry--)
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if (!(REG_READ(MIPIA_CMD_ADD_REG + reg_offset) & (1 << 0)))
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break;
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if (!retry) {
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DRM_ERROR("Timeout waiting for DBI command status\n");
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ret = -EAGAIN;
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}
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return ret;
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}
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static inline int mdfld_dsi_dbi_cb_ready(struct mdfld_dsi_dbi_output *dbi_output)
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{
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int ret = 0;
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/* Query the command execution status*/
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ret = mdfld_dsi_dbi_cmd_sent(dbi_output);
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if (ret) {
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DRM_ERROR("Peripheral is busy\n");
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ret = -EAGAIN;
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}
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/* Query the dbi fifo status*/
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ret = mdfld_dsi_dbi_fifo_ready(dbi_output);
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if (ret) {
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DRM_ERROR("DBI FIFO is not empty\n");
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ret = -EAGAIN;
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}
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return ret;
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}
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extern void mdfld_dsi_dbi_output_init(struct drm_device *dev,
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struct psb_intel_mode_device *mode_dev, int pipe);
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extern void mdfld_dsi_dbi_exit_dsr(struct drm_device *dev, u32 update_src);
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extern void mdfld_dsi_dbi_enter_dsr(struct mdfld_dsi_dbi_output *dbi_output,
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int pipe);
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extern int mdfld_dbi_dsr_init(struct drm_device *dev);
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extern void mdfld_dbi_dsr_exit(struct drm_device *dev);
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extern struct mdfld_dsi_encoder *mdfld_dsi_dbi_init(struct drm_device *dev,
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struct mdfld_dsi_connector *dsi_connector,
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struct panel_funcs *p_funcs);
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extern int mdfld_dsi_dbi_send_dcs(struct mdfld_dsi_dbi_output *dbi_output,
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u8 dcs, u8 *param, u32 num, u8 data_src);
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extern int mdfld_dsi_dbi_update_area(struct mdfld_dsi_dbi_output *dbi_output,
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u16 x1, u16 y1, u16 x2, u16 y2);
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extern int mdfld_dsi_dbi_update_power(struct mdfld_dsi_dbi_output *dbi_output,
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int mode);
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extern void mdfld_dsi_controller_dbi_init(struct mdfld_dsi_config *dsi_config,
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int pipe);
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#endif /*__MDFLD_DSI_DBI_H__*/
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