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gfiber / kernel / mindspeed / 6f4215199ba7f2f742a446d50c8030b495f3aea9 / . / drivers / staging / gma500 / mdfld_dsi_dpi.c
blob: e685f1217baa89d303243daec92e158d43ffca7d [file] [log] [blame]
/*
* 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_dpi.h"
#include "mdfld_output.h"
#include "mdfld_dsi_pkg_sender.h"
static void mdfld_wait_for_HS_DATA_FIFO(struct drm_device *dev, u32 pipe)
{
u32 gen_fifo_stat_reg = MIPIA_GEN_FIFO_STAT_REG;
int timeout = 0;
if (pipe == 2)
gen_fifo_stat_reg += MIPIC_REG_OFFSET;
udelay(500);
/* This will time out after approximately 2+ seconds */
while ((timeout < 20000) && (REG_READ(gen_fifo_stat_reg) & DSI_FIFO_GEN_HS_DATA_FULL)) {
udelay(100);
timeout++;
}
if (timeout == 20000)
dev_warn(dev->dev, "MIPI: HS Data FIFO was never cleared!\n");
}
static void mdfld_wait_for_HS_CTRL_FIFO(struct drm_device *dev, u32 pipe)
{
u32 gen_fifo_stat_reg = MIPIA_GEN_FIFO_STAT_REG;
int timeout = 0;
if (pipe == 2)
gen_fifo_stat_reg += MIPIC_REG_OFFSET;
udelay(500);
/* This will time out after approximately 2+ seconds */
while ((timeout < 20000) && (REG_READ(gen_fifo_stat_reg) & DSI_FIFO_GEN_HS_CTRL_FULL)) {
udelay(100);
timeout++;
}
if (timeout == 20000)
dev_warn(dev->dev, "MIPI: HS CMD FIFO was never cleared!\n");
}
static void mdfld_wait_for_DPI_CTRL_FIFO(struct drm_device *dev, u32 pipe)
{
u32 gen_fifo_stat_reg = MIPIA_GEN_FIFO_STAT_REG;
int timeout = 0;
if (pipe == 2)
gen_fifo_stat_reg += MIPIC_REG_OFFSET;
udelay(500);
/* This will time out after approximately 2+ seconds */
while ((timeout < 20000) && ((REG_READ(gen_fifo_stat_reg) & DPI_FIFO_EMPTY)
!= DPI_FIFO_EMPTY)) {
udelay(100);
timeout++;
}
if (timeout == 20000)
dev_warn(dev->dev, "MIPI: DPI FIFO was never cleared!\n");
}
static void mdfld_wait_for_SPL_PKG_SENT(struct drm_device *dev, u32 pipe)
{
u32 intr_stat_reg = MIPIA_INTR_STAT_REG;
int timeout = 0;
if (pipe == 2)
intr_stat_reg += MIPIC_REG_OFFSET;
udelay(500);
/* This will time out after approximately 2+ seconds */
while ((timeout < 20000) && (!(REG_READ(intr_stat_reg) & DSI_INTR_STATE_SPL_PKG_SENT))) {
udelay(100);
timeout++;
}
if (timeout == 20000)
dev_warn(dev->dev, "MIPI: SPL_PKT_SENT_INTERRUPT was not sent successfully!\n");
}
/* ************************************************************************* *\
* FUNCTION: mdfld_dsi_tpo_ic_init
*
* DESCRIPTION: This function is called only by mrst_dsi_mode_set and
* restore_display_registers. since this function does not
* acquire the mutex, it is important that the calling function
* does!
\* ************************************************************************* */
void mdfld_dsi_tpo_ic_init(struct mdfld_dsi_config *dsi_config, u32 pipe)
{
struct drm_device *dev = dsi_config->dev;
u32 dcsChannelNumber = dsi_config->channel_num;
u32 gen_data_reg = MIPIA_HS_GEN_DATA_REG;
u32 gen_ctrl_reg = MIPIA_HS_GEN_CTRL_REG;
u32 gen_ctrl_val = GEN_LONG_WRITE;
if (pipe == 2) {
gen_data_reg = HS_GEN_DATA_REG + MIPIC_REG_OFFSET;
gen_ctrl_reg = HS_GEN_CTRL_REG + MIPIC_REG_OFFSET;
}
gen_ctrl_val |= dcsChannelNumber << DCS_CHANNEL_NUMBER_POS;
/* Flip page order */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x00008036);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x02 << WORD_COUNTS_POS));
/* 0xF0 */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x005a5af0);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
/* Write protection key */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x005a5af1);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
/* 0xFC */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x005a5afc);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
/* 0xB7 */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x770000b7);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x00000044);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x05 << WORD_COUNTS_POS));
/* 0xB6 */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x000a0ab6);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
/* 0xF2 */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x081010f2);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x4a070708);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x000000c5);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x09 << WORD_COUNTS_POS));
/* 0xF8 */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x024003f8);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x01030a04);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x0e020220);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x00000004);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x0d << WORD_COUNTS_POS));
/* 0xE2 */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x398fc3e2);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x0000916f);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x06 << WORD_COUNTS_POS));
/* 0xB0 */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x000000b0);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x02 << WORD_COUNTS_POS));
/* 0xF4 */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x240242f4);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x78ee2002);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x2a071050);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x507fee10);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x10300710);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x14 << WORD_COUNTS_POS));
/* 0xBA */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x19fe07ba);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x101c0a31);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x00000010);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x09 << WORD_COUNTS_POS));
/* 0xBB */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x28ff07bb);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x24280a31);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x00000034);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x09 << WORD_COUNTS_POS));
/* 0xFB */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x535d05fb);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x1b1a2130);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x221e180e);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x131d2120);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x535d0508);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x1c1a2131);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x231f160d);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x111b2220);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x535c2008);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x1f1d2433);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x2c251a10);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x2c34372d);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x00000023);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x31 << WORD_COUNTS_POS));
/* 0xFA */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x525c0bfa);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x1c1c232f);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x2623190e);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x18212625);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x545d0d0e);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x1e1d2333);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x26231a10);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x1a222725);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x545d280f);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x21202635);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x31292013);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x31393d33);
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x00000029);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x31 << WORD_COUNTS_POS));
/* Set DM */
mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
REG_WRITE(gen_data_reg, 0x000100f7);
mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
}
static u16 mdfld_dsi_dpi_to_byte_clock_count(int pixel_clock_count,
int num_lane, int bpp)
{
return (u16)((pixel_clock_count * bpp) / (num_lane * 8));
}
/*
* Calculate the dpi time basing on a given drm mode @mode
* return 0 on success.
* FIXME: I was using proposed mode value for calculation, may need to
* use crtc mode values later
*/
int mdfld_dsi_dpi_timing_calculation(struct drm_display_mode *mode,
struct mdfld_dsi_dpi_timing *dpi_timing,
int num_lane, int bpp)
{
int pclk_hsync, pclk_hfp, pclk_hbp, pclk_hactive;
int pclk_vsync, pclk_vfp, pclk_vbp, pclk_vactive;
if(!mode || !dpi_timing) {
DRM_ERROR("Invalid parameter\n");
return -EINVAL;
}
pclk_hactive = mode->hdisplay;
pclk_hfp = mode->hsync_start - mode->hdisplay;
pclk_hsync = mode->hsync_end - mode->hsync_start;
pclk_hbp = mode->htotal - mode->hsync_end;
pclk_vactive = mode->vdisplay;
pclk_vfp = mode->vsync_start - mode->vdisplay;
pclk_vsync = mode->vsync_end - mode->vsync_start;
pclk_vbp = mode->vtotal - mode->vsync_end;
/*
* byte clock counts were calculated by following formula
* bclock_count = pclk_count * bpp / num_lane / 8
*/
dpi_timing->hsync_count = mdfld_dsi_dpi_to_byte_clock_count(pclk_hsync, num_lane, bpp);
dpi_timing->hbp_count = mdfld_dsi_dpi_to_byte_clock_count(pclk_hbp, num_lane, bpp);
dpi_timing->hfp_count = mdfld_dsi_dpi_to_byte_clock_count(pclk_hfp, num_lane, bpp);
dpi_timing->hactive_count = mdfld_dsi_dpi_to_byte_clock_count(pclk_hactive, num_lane, bpp);
dpi_timing->vsync_count = mdfld_dsi_dpi_to_byte_clock_count(pclk_vsync, num_lane, bpp);
dpi_timing->vbp_count = mdfld_dsi_dpi_to_byte_clock_count(pclk_vbp, num_lane, bpp);
dpi_timing->vfp_count = mdfld_dsi_dpi_to_byte_clock_count(pclk_vfp, num_lane, bpp);
return 0;
}
void mdfld_dsi_dpi_controller_init(struct mdfld_dsi_config *dsi_config, int pipe)
{
struct drm_device *dev = dsi_config->dev;
u32 reg_offset = pipe ? MIPIC_REG_OFFSET : 0;
int lane_count = dsi_config->lane_count;
struct mdfld_dsi_dpi_timing dpi_timing;
struct drm_display_mode *mode = dsi_config->mode;
u32 val = 0;
/*un-ready device*/
REG_WRITE((MIPIA_DEVICE_READY_REG + reg_offset), 0x00000000);
/*init dsi adapter before kicking off*/
REG_WRITE((MIPIA_CONTROL_REG + reg_offset), 0x00000018);
/*enable all interrupts*/
REG_WRITE((MIPIA_INTR_EN_REG + reg_offset), 0xffffffff);
/*set up func_prg*/
val |= lane_count;
val |= dsi_config->channel_num << DSI_DPI_VIRT_CHANNEL_OFFSET;
switch(dsi_config->bpp) {
case 16:
val |= DSI_DPI_COLOR_FORMAT_RGB565;
break;
case 18:
val |= DSI_DPI_COLOR_FORMAT_RGB666;
break;
case 24:
val |= DSI_DPI_COLOR_FORMAT_RGB888;
break;
default:
DRM_ERROR("unsupported color format, bpp = %d\n", dsi_config->bpp);
}
REG_WRITE((MIPIA_DSI_FUNC_PRG_REG + reg_offset), val);
REG_WRITE((MIPIA_HS_TX_TIMEOUT_REG + reg_offset),
(mode->vtotal * mode->htotal * dsi_config->bpp / (8 * lane_count)) & DSI_HS_TX_TIMEOUT_MASK);
REG_WRITE((MIPIA_LP_RX_TIMEOUT_REG + reg_offset), 0xffff & DSI_LP_RX_TIMEOUT_MASK);
/*max value: 20 clock cycles of txclkesc*/
REG_WRITE((MIPIA_TURN_AROUND_TIMEOUT_REG + reg_offset), 0x14 & DSI_TURN_AROUND_TIMEOUT_MASK);
/*min 21 txclkesc, max: ffffh*/
REG_WRITE((MIPIA_DEVICE_RESET_TIMER_REG + reg_offset), 0xffff & DSI_RESET_TIMER_MASK);
REG_WRITE((MIPIA_DPI_RESOLUTION_REG + reg_offset), mode->vdisplay << 16 | mode->hdisplay);
/*set DPI timing registers*/
mdfld_dsi_dpi_timing_calculation(mode, &dpi_timing, dsi_config->lane_count, dsi_config->bpp);
REG_WRITE((MIPIA_HSYNC_COUNT_REG + reg_offset), dpi_timing.hsync_count & DSI_DPI_TIMING_MASK);
REG_WRITE((MIPIA_HBP_COUNT_REG + reg_offset), dpi_timing.hbp_count & DSI_DPI_TIMING_MASK);
REG_WRITE((MIPIA_HFP_COUNT_REG + reg_offset), dpi_timing.hfp_count & DSI_DPI_TIMING_MASK);
REG_WRITE((MIPIA_HACTIVE_COUNT_REG + reg_offset), dpi_timing.hactive_count & DSI_DPI_TIMING_MASK);
REG_WRITE((MIPIA_VSYNC_COUNT_REG + reg_offset), dpi_timing.vsync_count & DSI_DPI_TIMING_MASK);
REG_WRITE((MIPIA_VBP_COUNT_REG + reg_offset), dpi_timing.vbp_count & DSI_DPI_TIMING_MASK);
REG_WRITE((MIPIA_VFP_COUNT_REG + reg_offset), dpi_timing.vfp_count & DSI_DPI_TIMING_MASK);
REG_WRITE((MIPIA_HIGH_LOW_SWITCH_COUNT_REG + reg_offset), 0x46);
/*min: 7d0 max: 4e20*/
REG_WRITE((MIPIA_INIT_COUNT_REG + reg_offset), 0x000007d0);
/*set up video mode*/
val = 0;
val = dsi_config->video_mode | DSI_DPI_COMPLETE_LAST_LINE;
REG_WRITE((MIPIA_VIDEO_MODE_FORMAT_REG + reg_offset), val);
REG_WRITE((MIPIA_EOT_DISABLE_REG + reg_offset), 0x00000000);
REG_WRITE((MIPIA_LP_BYTECLK_REG + reg_offset), 0x00000004);
/*TODO: figure out how to setup these registers*/
REG_WRITE((MIPIA_DPHY_PARAM_REG + reg_offset), 0x150c3408);
REG_WRITE((MIPIA_CLK_LANE_SWITCH_TIME_CNT_REG + reg_offset), (0xa << 16) | 0x14);
/*set device ready*/
REG_WRITE((MIPIA_DEVICE_READY_REG + reg_offset), 0x00000001);
}
void mdfld_dsi_dpi_turn_on(struct mdfld_dsi_dpi_output *output, int pipe)
{
struct drm_device *dev = output->dev;
u32 reg_offset = 0;
if(output->panel_on)
return;
if(pipe)
reg_offset = MIPIC_REG_OFFSET;
/* clear special packet sent bit */
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);
}
/*send turn on package*/
REG_WRITE((MIPIA_DPI_CONTROL_REG + reg_offset), DSI_DPI_CTRL_HS_TURN_ON);
/*wait for SPL_PKG_SENT interrupt*/
mdfld_wait_for_SPL_PKG_SENT(dev, pipe);
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);
}
output->panel_on = 1;
/* FIXME the following is disabled to WA the X slow start issue for TMD panel */
/* if(pipe == 2) */
/* dev_priv->dpi_panel_on2 = true; */
/* else if (pipe == 0) */
/* dev_priv->dpi_panel_on = true; */
}
static void mdfld_dsi_dpi_shut_down(struct mdfld_dsi_dpi_output *output, int pipe)
{
struct drm_device *dev = output->dev;
u32 reg_offset = 0;
/*if output is on, or mode setting didn't happen, ignore this*/
if((!output->panel_on) || output->first_boot) {
output->first_boot = 0;
return;
}
if(pipe)
reg_offset = MIPIC_REG_OFFSET;
/* Wait for dpi fifo to empty */
mdfld_wait_for_DPI_CTRL_FIFO(dev, pipe);
/* Clear the special packet interrupt bit if set */
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);
}
if(REG_READ(MIPIA_DPI_CONTROL_REG + reg_offset) == DSI_DPI_CTRL_HS_SHUTDOWN) {
dev_warn(dev->dev, "try to send the same package again, abort!");
goto shutdown_out;
}
REG_WRITE((MIPIA_DPI_CONTROL_REG + reg_offset), DSI_DPI_CTRL_HS_SHUTDOWN);
shutdown_out:
output->panel_on = 0;
output->first_boot = 0;
/* FIXME the following is disabled to WA the X slow start issue for TMD panel */
/* if(pipe == 2) */
/* dev_priv->dpi_panel_on2 = false; */
/* else if (pipe == 0) */
/* dev_priv->dpi_panel_on = false; */
/* #ifdef CONFIG_PM_RUNTIME*/
/* if (drm_psb_ospm && !enable_gfx_rtpm) { */
/* pm_runtime_allow(&gpDrmDevice->pdev->dev); */
/* schedule_delayed_work(&dev_priv->rtpm_work, 30 * 1000); */
/* } */
/*if (enable_gfx_rtpm) */
/* pm_schedule_suspend(&dev->pdev->dev, gfxrtdelay); */
/* #endif */
}
void mdfld_dsi_dpi_set_power(struct drm_encoder *encoder, bool on)
{
struct mdfld_dsi_encoder *dsi_encoder = MDFLD_DSI_ENCODER(encoder);
struct mdfld_dsi_dpi_output *dpi_output = MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
struct mdfld_dsi_config *dsi_config = mdfld_dsi_encoder_get_config(dsi_encoder);
int pipe = mdfld_dsi_encoder_get_pipe(dsi_encoder);
struct drm_device *dev = dsi_config->dev;
struct drm_psb_private *dev_priv = dev->dev_private;
u32 mipi_reg = MIPI;
u32 pipeconf_reg = PIPEACONF;
if(pipe) {
mipi_reg = MIPI_C;
pipeconf_reg = PIPECCONF;
}
/* Start up display island if it was shutdown */
if (!gma_power_begin(dev, true))
return;
if(on) {
if (mdfld_get_panel_type(dev, pipe) == TMD_VID){
mdfld_dsi_dpi_turn_on(dpi_output, pipe);
} else {
/* Enable mipi port */
REG_WRITE(mipi_reg, (REG_READ(mipi_reg) | (1 << 31)));
REG_READ(mipi_reg);
mdfld_dsi_dpi_turn_on(dpi_output, pipe);
mdfld_dsi_tpo_ic_init(dsi_config, pipe);
}
if(pipe == 2) {
dev_priv->dpi_panel_on2 = true;
}
else {
dev_priv->dpi_panel_on = true;
}
} else {
if (mdfld_get_panel_type(dev, pipe) == TMD_VID) {
mdfld_dsi_dpi_shut_down(dpi_output, pipe);
} else {
mdfld_dsi_dpi_shut_down(dpi_output, pipe);
/* Disable mipi port */
REG_WRITE(mipi_reg, (REG_READ(mipi_reg) & ~(1<<31)));
REG_READ(mipi_reg);
}
if(pipe == 2)
dev_priv->dpi_panel_on2 = false;
else
dev_priv->dpi_panel_on = false;
}
gma_power_end(dev);
}
void mdfld_dsi_dpi_dpms(struct drm_encoder *encoder, int mode)
{
dev_dbg(encoder->dev->dev, "DPMS %s\n",
(mode == DRM_MODE_DPMS_ON ? "on":"off"));
if (mode == DRM_MODE_DPMS_ON)
mdfld_dsi_dpi_set_power(encoder, true);
else {
mdfld_dsi_dpi_set_power(encoder, false);
#if 0 /* FIXME */
#ifdef CONFIG_PM_RUNTIME
if (enable_gfx_rtpm)
pm_schedule_suspend(&gpDrmDevice->pdev->dev, gfxrtdelay);
#endif
#endif
}
}
bool mdfld_dsi_dpi_mode_fixup(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct mdfld_dsi_encoder *dsi_encoder = MDFLD_DSI_ENCODER(encoder);
struct mdfld_dsi_config *dsi_config = mdfld_dsi_encoder_get_config(dsi_encoder);
struct drm_display_mode *fixed_mode = dsi_config->fixed_mode;
if(fixed_mode) {
adjusted_mode->hdisplay = fixed_mode->hdisplay;
adjusted_mode->hsync_start = fixed_mode->hsync_start;
adjusted_mode->hsync_end = fixed_mode->hsync_end;
adjusted_mode->htotal = fixed_mode->htotal;
adjusted_mode->vdisplay = fixed_mode->vdisplay;
adjusted_mode->vsync_start = fixed_mode->vsync_start;
adjusted_mode->vsync_end = fixed_mode->vsync_end;
adjusted_mode->vtotal = fixed_mode->vtotal;
adjusted_mode->clock = fixed_mode->clock;
drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
}
return true;
}
void mdfld_dsi_dpi_prepare(struct drm_encoder *encoder)
{
mdfld_dsi_dpi_set_power(encoder, false);
}
void mdfld_dsi_dpi_commit(struct drm_encoder *encoder)
{
mdfld_dsi_dpi_set_power(encoder, true);
}
void mdfld_dsi_dpi_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct mdfld_dsi_encoder *dsi_encoder = MDFLD_DSI_ENCODER(encoder);
struct mdfld_dsi_dpi_output *dpi_output = MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
struct mdfld_dsi_config *dsi_config = mdfld_dsi_encoder_get_config(dsi_encoder);
struct drm_device *dev = dsi_config->dev;
struct drm_psb_private *dev_priv = dev->dev_private;
int pipe = mdfld_dsi_encoder_get_pipe(dsi_encoder);
u32 pipeconf_reg = PIPEACONF;
u32 dspcntr_reg = DSPACNTR;
u32 mipi_reg = MIPI;
u32 reg_offset = 0;
u32 pipeconf = dev_priv->pipeconf;
u32 dspcntr = dev_priv->dspcntr;
u32 mipi = MIPI_PORT_EN | PASS_FROM_SPHY_TO_AFE | SEL_FLOPPED_HSTX;
dev_dbg(dev->dev, "set mode %dx%d on pipe %d\n",
mode->hdisplay, mode->vdisplay, pipe);
if(pipe) {
pipeconf_reg = PIPECCONF;
dspcntr_reg = DSPCCNTR;
mipi_reg = MIPI_C;
reg_offset = MIPIC_REG_OFFSET;
} else {
mipi |= 2;
}
if (!gma_power_begin(dev, true))
return;
/* Set up mipi port FIXME: do at init time */
REG_WRITE(mipi_reg, mipi);
REG_READ(mipi_reg);
/* Set up DSI controller DPI interface */
mdfld_dsi_dpi_controller_init(dsi_config, pipe);
if (mdfld_get_panel_type(dev, pipe) != TMD_VID) {
/* Turn on DPI interface */
mdfld_dsi_dpi_turn_on(dpi_output, pipe);
}
/* Set up pipe */
REG_WRITE(pipeconf_reg, pipeconf);
REG_READ(pipeconf_reg);
/* Set up display plane */
REG_WRITE(dspcntr_reg, dspcntr);
REG_READ(dspcntr_reg);
msleep(20); /* FIXME: this should wait for vblank */
dev_dbg(dev->dev, "State %x, power %d\n",
REG_READ(MIPIA_INTR_STAT_REG + reg_offset),
dpi_output->panel_on);
if (mdfld_get_panel_type(dev, pipe) != TMD_VID) {
/* Init driver ic */
mdfld_dsi_tpo_ic_init(dsi_config, pipe);
/* Init backlight */
mdfld_dsi_brightness_init(dsi_config, pipe);
}
gma_power_end(dev);
}
/*
* Init DSI DPI encoder.
* Allocate an mdfld_dsi_encoder and attach it to given @dsi_connector
* return pointer of newly allocated DPI encoder, NULL on error
*/
struct mdfld_dsi_encoder *mdfld_dsi_dpi_init(struct drm_device *dev,
struct mdfld_dsi_connector *dsi_connector,
struct panel_funcs *p_funcs)
{
struct mdfld_dsi_dpi_output *dpi_output = NULL;
struct mdfld_dsi_config *dsi_config;
struct drm_connector *connector = NULL;
struct drm_encoder *encoder = NULL;
struct drm_display_mode *fixed_mode = NULL;
int pipe;
u32 data;
int ret;
if (!dsi_connector || !p_funcs) {
WARN_ON(1);
return NULL;
}
dsi_config = mdfld_dsi_get_config(dsi_connector);
pipe = dsi_connector->pipe;
/* Panel hard-reset */
if (p_funcs->reset) {
ret = p_funcs->reset(pipe);
if (ret) {
DRM_ERROR("Panel %d hard-reset failed\n", pipe);
return NULL;
}
}
/* Panel drvIC init */
if (p_funcs->drv_ic_init)
p_funcs->drv_ic_init(dsi_config, pipe);
/* Panel power mode detect */
ret = mdfld_dsi_get_power_mode(dsi_config,
&data,
MDFLD_DSI_LP_TRANSMISSION);
if (ret) {
DRM_ERROR("Panel %d get power mode failed\n", pipe);
dsi_connector->status = connector_status_disconnected;
} else {
DRM_INFO("pipe %d power mode 0x%x\n", pipe, data);
dsi_connector->status = connector_status_connected;
}
dpi_output = kzalloc(sizeof(struct mdfld_dsi_dpi_output), GFP_KERNEL);
if(!dpi_output) {
dev_err(dev->dev, "No memory for dsi_dpi_output\n");
return NULL;
}
if(dsi_connector->pipe)
dpi_output->panel_on = 0;
else
dpi_output->panel_on = 0;
dpi_output->dev = dev;
dpi_output->p_funcs = p_funcs;
dpi_output->first_boot = 1;
/* Get fixed mode */
dsi_config = mdfld_dsi_get_config(dsi_connector);
fixed_mode = dsi_config->fixed_mode;
/* Create drm encoder object */
connector = &dsi_connector->base.base;
encoder = &dpi_output->base.base;
/*
* On existing hardware this will be a panel of some form,
* if future devices also have HDMI bridges this will need
* revisiting
*/
drm_encoder_init(dev,
encoder,
p_funcs->encoder_funcs,
DRM_MODE_ENCODER_LVDS);
drm_encoder_helper_add(encoder,
p_funcs->encoder_helper_funcs);
/* Attach to given connector */
drm_mode_connector_attach_encoder(connector, encoder);
/* Set possible crtcs and clones */
if(dsi_connector->pipe) {
encoder->possible_crtcs = (1 << 2);
encoder->possible_clones = (1 << 1);
} else {
encoder->possible_crtcs = (1 << 0);
encoder->possible_clones = (1 << 0);
}
return &dpi_output->base;
}