mdfld_dsi_dbi.h
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/*
* 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__*/