static int prepare_for_reg_access(struct msm_fb_data_type *mfd)
{
struct mdss_panel_data *pdata;
int ret = 0;
struct mdss_mdp_ctl *ctl;
ctl = mfd_to_ctl(mfd);
if (!ctl)
return -ENODEV;
pdata = dev_get_platdata(&mfd->pdev->dev);
if (!pdata) {
pr_err("%s: no panel connected\n", __func__);
return -ENODEV;
}
if (pdata->panel_info.type == MIPI_CMD_PANEL) {
if (ctl->display_fnc)
ret = ctl->display_fnc(ctl, NULL);
if (ret)
pr_warn("error displaying frame\n");
}
mdss_dsi_op_mode_config(DSI_CMD_MODE, pdata);
return ret;
}
static int prepare_for_reg_access(struct msm_fb_data_type *mfd)
{
struct mdss_panel_data *pdata;
int ret = 0;
struct mdss_mdp_ctl *ctl;
struct mdss_dsi_ctrl_pdata *ctrl_pdata = NULL;
ctl = mfd_to_ctl(mfd);
if (!ctl)
return -ENODEV;
pdata = dev_get_platdata(&mfd->pdev->dev);
if (!pdata) {
pr_err("%s: no panel connected\n", __func__);
return -ENODEV;
}
ctrl_pdata = container_of(pdata, struct mdss_dsi_ctrl_pdata,
panel_data);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON, false);
mdss_dsi_cmd_mdp_busy(ctrl_pdata);
mdss_bus_bandwidth_ctrl(1);
mdss_dsi_clk_ctrl(ctrl_pdata, 1);
mdss_dsi_op_mode_config(DSI_CMD_MODE, pdata);
return ret;
}
void mdss_check_dsi_ctrl_status(struct work_struct *work, uint32_t interval)
{
struct dsi_status_data *pstatus_data = NULL;
struct mdss_panel_data *pdata = NULL;
struct mipi_panel_info *mipi = NULL;
struct mdss_dsi_ctrl_pdata *ctrl_pdata = NULL;
struct mdss_overlay_private *mdp5_data = NULL;
struct mdss_mdp_ctl *ctl = NULL;
int ret = 0;
pstatus_data = container_of(to_delayed_work(work),
struct dsi_status_data, check_status);
if (!pstatus_data || !(pstatus_data->mfd)) {
pr_err("%s: mfd not available\n", __func__);
return;
}
pdata = dev_get_platdata(&pstatus_data->mfd->pdev->dev);
if (!pdata) {
pr_err("%s: Panel data not available\n", __func__);
return;
}
mipi = &pdata->panel_info.mipi;
ctrl_pdata = container_of(pdata, struct mdss_dsi_ctrl_pdata,
panel_data);
if (!ctrl_pdata || (!ctrl_pdata->check_status &&
(ctrl_pdata->status_mode != ESD_TE))) {
pr_err("%s: DSI ctrl or status_check callback not available\n",
__func__);
return;
}
mdp5_data = mfd_to_mdp5_data(pstatus_data->mfd);
ctl = mfd_to_ctl(pstatus_data->mfd);
if (!ctl) {
pr_err("%s: Display is off\n", __func__);
return;
}
if (ctl->power_state == MDSS_PANEL_POWER_OFF) {
schedule_delayed_work(&pstatus_data->check_status,
msecs_to_jiffies(interval));
pr_debug("%s: ctl not powered on\n", __func__);
return;
}
if (ctrl_pdata->status_mode == ESD_TE) {
mdss_check_te_status(ctrl_pdata, pstatus_data, interval);
return;
}
mutex_lock(&ctl->offlock);
if (mipi->mode == DSI_CMD_MODE)
mutex_lock(&mdp5_data->ov_lock);
if (mdss_panel_is_power_off(pstatus_data->mfd->panel_power_state) ||
pstatus_data->mfd->shutdown_pending) {
if (mipi->mode == DSI_CMD_MODE)
mutex_unlock(&mdp5_data->ov_lock);
mutex_unlock(&ctl->offlock);
pr_err("%s: DSI turning off, avoiding panel status check\n",
__func__);
return;
}
if (ctl->wait_pingpong)
ctl->wait_pingpong(ctl, NULL);
pr_debug("%s: DSI ctrl wait for ping pong done\n", __func__);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON);
ret = ctrl_pdata->check_status(ctrl_pdata);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF);
if (mipi->mode == DSI_CMD_MODE)
mutex_unlock(&mdp5_data->ov_lock);
mutex_unlock(&ctl->offlock);
if ((pstatus_data->mfd->panel_power_state == MDSS_PANEL_POWER_ON)) {
if (ret > 0)
schedule_delayed_work(&pstatus_data->check_status,
msecs_to_jiffies(interval));
else
mdss_report_panel_dead(pstatus_data);
}
}
/*
* mdss_check_dsi_ctrl_status() - Check MDP5 DSI controller status periodically.
* @work : dsi controller status data
* @interval : duration in milliseconds to schedule work queue
*
* This function calls check_status API on DSI controller to send the BTA
* command. If DSI controller fails to acknowledge the BTA command, it sends
* the PANEL_ALIVE=0 status to HAL layer.
*/
void mdss_check_dsi_ctrl_status(struct work_struct *work, uint32_t interval)
{
struct dsi_status_data *pstatus_data = NULL;
struct mdss_panel_data *pdata = NULL;
struct mdss_dsi_ctrl_pdata *ctrl_pdata = NULL;
struct mdss_overlay_private *mdp5_data = NULL;
struct mdss_mdp_ctl *ctl = NULL;
int ret = 0;
pstatus_data = container_of(to_delayed_work(work),
struct dsi_status_data, check_status);
if (!pstatus_data || !(pstatus_data->mfd)) {
pr_err("%s: mfd not available\n", __func__);
return;
}
pdata = dev_get_platdata(&pstatus_data->mfd->pdev->dev);
if (!pdata) {
pr_err("%s: Panel data not available\n", __func__);
return;
}
ctrl_pdata = container_of(pdata, struct mdss_dsi_ctrl_pdata,
panel_data);
if (!ctrl_pdata || (!ctrl_pdata->check_status &&
(ctrl_pdata->status_mode != ESD_TE))) {
pr_err("%s: DSI ctrl or status_check callback not available\n",
__func__);
return;
}
mdp5_data = mfd_to_mdp5_data(pstatus_data->mfd);
ctl = mfd_to_ctl(pstatus_data->mfd);
if (!ctl) {
pr_err("%s: Display is off\n", __func__);
return;
}
if (ctl->power_state == MDSS_PANEL_POWER_OFF) {
schedule_delayed_work(&pstatus_data->check_status,
msecs_to_jiffies(interval));
pr_debug("%s: ctl not powered on\n", __func__);
return;
}
if (ctrl_pdata->status_mode == ESD_TE) {
mdss_check_te_status(ctrl_pdata, pstatus_data, interval);
return;
}
mutex_lock(&ctrl_pdata->mutex);
if (ctl->shared_lock)
mutex_lock(ctl->shared_lock);
mutex_lock(&mdp5_data->ov_lock);
if (pstatus_data->mfd->shutdown_pending) {
mutex_unlock(&mdp5_data->ov_lock);
if (ctl->shared_lock)
mutex_unlock(ctl->shared_lock);
mutex_unlock(&ctrl_pdata->mutex);
pr_err("%s: DSI turning off, avoiding panel status check\n",
__func__);
return;
}
/*
* For the command mode panels, we return pan display
* IOCTL on vsync interrupt. So, after vsync interrupt comes
* and when DMA_P is in progress, if the panel stops responding
* and if we trigger BTA before DMA_P finishes, then the DSI
* FIFO will not be cleared since the DSI data bus control
* doesn't come back to the host after BTA. This may cause the
* display reset not to be proper. Hence, wait for DMA_P done
* for command mode panels before triggering BTA.
*/
if (ctl->wait_pingpong)
ctl->wait_pingpong(ctl, NULL);
pr_debug("%s: DSI ctrl wait for ping pong done\n", __func__);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON);
ret = ctrl_pdata->check_status(ctrl_pdata);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF);
mutex_unlock(&mdp5_data->ov_lock);
if (ctl->shared_lock)
mutex_unlock(ctl->shared_lock);
mutex_unlock(&ctrl_pdata->mutex);
if ((pstatus_data->mfd->panel_power_state == MDSS_PANEL_POWER_ON)) {
if (ret > 0)
schedule_delayed_work(&pstatus_data->check_status,
msecs_to_jiffies(interval));
else
mdss_report_panel_dead(pstatus_data);
}
}
/*
* mdss_check_dsi_ctrl_status() - Check MDP5 DSI controller status periodically.
* @work : dsi controller status data
* @interval : duration in milliseconds to schedule work queue
*
* This function calls check_status API on DSI controller to send the BTA
* command. If DSI controller fails to acknowledge the BTA command, it sends
* the PANEL_ALIVE=0 status to HAL layer.
*/
void mdss_check_dsi_ctrl_status(struct work_struct *work, uint32_t interval)
{
struct dsi_status_data *pstatus_data = NULL;
struct mdss_panel_data *pdata = NULL;
struct mipi_panel_info *mipi = NULL;
struct mdss_dsi_ctrl_pdata *ctrl_pdata = NULL;
struct mdss_overlay_private *mdp5_data = NULL;
struct mdss_mdp_ctl *ctl = NULL;
int ret = 0;
#ifdef VENDOR_EDIT
/* Xiaori.Yuan@Mobile Phone Software Dept.Driver, 2015/01/09 Add for 14045 TP and LCD ESD */
int tp_ret=-1;
#endif /*VENDOR_EDIT*/
pstatus_data = container_of(to_delayed_work(work),
struct dsi_status_data, check_status);
if (!pstatus_data || !(pstatus_data->mfd)) {
pr_err("%s: mfd not available\n", __func__);
return;
}
pdata = dev_get_platdata(&pstatus_data->mfd->pdev->dev);
if (!pdata) {
pr_err("%s: Panel data not available\n", __func__);
return;
}
mipi = &pdata->panel_info.mipi;
ctrl_pdata = container_of(pdata, struct mdss_dsi_ctrl_pdata,
panel_data);
if (!ctrl_pdata || !ctrl_pdata->check_status) {
pr_err("%s: DSI ctrl or status_check callback not available\n",
__func__);
return;
}
mdp5_data = mfd_to_mdp5_data(pstatus_data->mfd);
ctl = mfd_to_ctl(pstatus_data->mfd);
if (!ctl) {
pr_err("%s: Display is off\n", __func__);
return;
}
if (!ctl->power_on) {
schedule_delayed_work(&pstatus_data->check_status,
msecs_to_jiffies(interval));
pr_err("%s: ctl not powered on\n", __func__);
return;
}
/*
* TODO: Because mdss_dsi_cmd_mdp_busy has made sure DMA to
* be idle in mdss_dsi_cmdlist_commit, it is not necessary
* to acquire ov_lock in case of video mode. Removing this
* lock to fix issues so that ESD thread could block other
* overlay operations. Need refine this lock for command mode
*/
if (mipi->mode == DSI_CMD_MODE)
mutex_lock(&mdp5_data->ov_lock);
if (pstatus_data->mfd->shutdown_pending ||
!pstatus_data->mfd->panel_power_on) {
if (mipi->mode == DSI_CMD_MODE)
mutex_unlock(&mdp5_data->ov_lock);
pr_err("%s: DSI turning off, avoiding panel status check\n",
__func__);
return;
}
/*
* For the command mode panels, we return pan display
* IOCTL on vsync interrupt. So, after vsync interrupt comes
* and when DMA_P is in progress, if the panel stops responding
* and if we trigger BTA before DMA_P finishes, then the DSI
* FIFO will not be cleared since the DSI data bus control
* doesn't come back to the host after BTA. This may cause the
* display reset not to be proper. Hence, wait for DMA_P done
* for command mode panels before triggering BTA.
*/
if (ctl->wait_pingpong)
ctl->wait_pingpong(ctl, NULL);
pr_debug("%s: DSI ctrl wait for ping pong done\n", __func__);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON, false);
ret = ctrl_pdata->check_status(ctrl_pdata);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF, false);
if (mipi->mode == DSI_CMD_MODE)
mutex_unlock(&mdp5_data->ov_lock);
#ifdef VENDOR_EDIT
/* Xiaori.Yuan@Mobile Phone Software Dept.Driver, 2015/01/09 Add for 14045 TP and LCD ESD */
if(is_project(OPPO_14045) && tp_esd_check_fn!=NULL)
{
tp_ret = tp_esd_check_fn();
}else{
tp_ret = 1;
}
#endif /*VENDOR_EDIT*/
if ((pstatus_data->mfd->panel_power_on)) {
/* VENDOR_EDIT Xiaori.Yuan@Mobile Phone Software Dept.Driver, 2015/01/09 Modified for 14045 TP and LCD ESD */
//if (ret > 0) {
if ((ret > 0) && (tp_ret >= 0)) {
/*VENDOR_EDIT Modified end*/
schedule_delayed_work(&pstatus_data->check_status,
msecs_to_jiffies(interval));
} else {
char *envp[2] = {"PANEL_ALIVE=0", NULL};
pdata->panel_info.panel_dead = true;
ret = kobject_uevent_env(
&pstatus_data->mfd->fbi->dev->kobj,
KOBJ_CHANGE, envp);
pr_err("%s: Panel has gone bad, sending uevent - %s\n",
__func__, envp[0]);
}
}
}
static void check_dsi_ctrl_status(struct work_struct *work)
{
struct dsi_status_data *pdsi_status = NULL;
struct mdss_panel_data *pdata = NULL;
struct mdss_dsi_ctrl_pdata *ctrl_pdata = NULL;
struct mdss_overlay_private *mdp5_data = NULL;
struct mdss_mdp_ctl *ctl = NULL;
int ret = 0;
pdsi_status = container_of(to_delayed_work(work),
struct dsi_status_data, check_status);
if (!pdsi_status) {
pr_err("%s: DSI status data not available\n", __func__);
return;
}
//patch + case1481899 mayu 3.27
if(!pdsi_status->mfd){
pr_err("%s:mfd is NULL \n",__func__);
return;
}
//patch - case1481899 mayu 3.27
pdata = dev_get_platdata(&pdsi_status->mfd->pdev->dev);
if (!pdata) {
pr_err("%s: Panel data not available\n", __func__);
return;
}
ctrl_pdata = container_of(pdata, struct mdss_dsi_ctrl_pdata,
panel_data);
if (!ctrl_pdata || !ctrl_pdata->check_status) {
pr_err("%s: DSI ctrl or status_check callback not available\n",
__func__);
return;
}
//+++duguowei,crash if no lcd
if(!ctrl_pdata->panel_name)
return;
//---duguowei,crash if no lcd
mdp5_data = mfd_to_mdp5_data(pdsi_status->mfd);
ctl = mfd_to_ctl(pdsi_status->mfd);
if (ctl->shared_lock)
mutex_lock(ctl->shared_lock);
mutex_lock(&mdp5_data->ov_lock);
/*
* For the command mode panels, we return pan display
* IOCTL on vsync interrupt. So, after vsync interrupt comes
* and when DMA_P is in progress, if the panel stops responding
* and if we trigger BTA before DMA_P finishes, then the DSI
* FIFO will not be cleared since the DSI data bus control
* doesn't come back to the host after BTA. This may cause the
* display reset not to be proper. Hence, wait for DMA_P done
* for command mode panels before triggering BTA.
*/
if (pdsi_status->mfd->shutdown_pending) {
mutex_unlock(&mdp5_data->ov_lock);
if (ctl->shared_lock)
mutex_unlock(ctl->shared_lock);
return;
}
if (ctl->wait_pingpong)
ctl->wait_pingpong(ctl, NULL);
pr_debug("%s: DSI ctrl wait for ping pong done\n", __func__);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON, false);
ret = ctrl_pdata->check_status(ctrl_pdata);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF, false);
mutex_unlock(&mdp5_data->ov_lock);
if (ctl->shared_lock)
mutex_unlock(ctl->shared_lock);
if ((pdsi_status->mfd->panel_power_on)) {
if (ret > 0) {
schedule_delayed_work(&pdsi_status->check_status,
msecs_to_jiffies(pdsi_status->check_interval));
} else {
#ifdef CONFIG_ZTEMT_NE501_LCD
if (mipi_lcd_esd_command(ctrl_pdata)) {
char *envp[2] = {"PANEL_ALIVE=0", NULL};
pdata->panel_info.panel_dead = true;
ret = kobject_uevent_env(
&pdsi_status->mfd->fbi->dev->kobj,
KOBJ_CHANGE, envp);
pr_err("%s: Panel has gone bad, sending uevent - %s\n",
__func__, envp[0]);
printk("default reset panel\n");
}
#else
char *envp[2] = {"PANEL_ALIVE=0", NULL};
pdata->panel_info.panel_dead = true;
ret = kobject_uevent_env(
&pdsi_status->mfd->fbi->dev->kobj,
KOBJ_CHANGE, envp);
pr_err("%s: Panel has gone bad, sending uevent - %s\n",
__func__, envp[0]);
#endif
}
}
}
/*
* mdss_check_dsi_ctrl_status() - Check MDP5 DSI controller status periodically.
* @work : dsi controller status data
* @interval : duration in milliseconds to schedule work queue
*
* This function calls check_status API on DSI controller to send the BTA
* command. If DSI controller fails to acknowledge the BTA command, it sends
* the PANEL_ALIVE=0 status to HAL layer.
*/
void mdss_check_dsi_ctrl_status(struct work_struct *work, uint32_t interval)
{
struct dsi_status_data *pstatus_data = NULL;
struct mdss_panel_data *pdata = NULL;
struct mdss_dsi_ctrl_pdata *ctrl_pdata = NULL;
struct mdss_overlay_private *mdp5_data = NULL;
struct mdss_mdp_ctl *ctl = NULL;
int ret = 0;
pstatus_data = container_of(to_delayed_work(work),
struct dsi_status_data, check_status);
if (!pstatus_data || !(pstatus_data->mfd)) {
pr_err("%s: mfd not available\n", __func__);
return;
}
pdata = dev_get_platdata(&pstatus_data->mfd->pdev->dev);
if (!pdata) {
pr_err("%s: Panel data not available\n", __func__);
return;
}
ctrl_pdata = container_of(pdata, struct mdss_dsi_ctrl_pdata,
panel_data);
if (!ctrl_pdata || !ctrl_pdata->check_status) {
pr_err("%s: DSI ctrl or status_check callback not available\n",
__func__);
return;
}
mdp5_data = mfd_to_mdp5_data(pstatus_data->mfd);
ctl = mfd_to_ctl(pstatus_data->mfd);
if (!ctl) {
pr_err("%s: Display is off\n", __func__);
return;
}
if (!ctl->power_on) {
schedule_delayed_work(&pstatus_data->check_status,
msecs_to_jiffies(interval));
pr_err("%s: ctl not powered on\n", __func__);
return;
}
if (ctl->shared_lock)
mutex_lock(ctl->shared_lock);
mutex_lock(&mdp5_data->ov_lock);
if (pstatus_data->mfd->shutdown_pending ||
!pstatus_data->mfd->panel_power_on) {
mutex_unlock(&mdp5_data->ov_lock);
if (ctl->shared_lock)
mutex_unlock(ctl->shared_lock);
pr_err("%s: DSI turning off, avoiding panel status check\n",
__func__);
return;
}
/*
* For the command mode panels, we return pan display
* IOCTL on vsync interrupt. So, after vsync interrupt comes
* and when DMA_P is in progress, if the panel stops responding
* and if we trigger BTA before DMA_P finishes, then the DSI
* FIFO will not be cleared since the DSI data bus control
* doesn't come back to the host after BTA. This may cause the
* display reset not to be proper. Hence, wait for DMA_P done
* for command mode panels before triggering BTA.
*/
if (ctl->wait_pingpong)
ctl->wait_pingpong(ctl, NULL);
pr_debug("%s: DSI ctrl wait for ping pong done\n", __func__);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON, false);
ret = ctrl_pdata->check_status(ctrl_pdata);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF, false);
mutex_unlock(&mdp5_data->ov_lock);
if (ctl->shared_lock)
mutex_unlock(ctl->shared_lock);
if ((pstatus_data->mfd->panel_power_on)) {
if (ret > 0) {
schedule_delayed_work(&pstatus_data->check_status,
msecs_to_jiffies(interval));
} else {
char *envp[2] = {"PANEL_ALIVE=0", NULL};
pdata->panel_info.panel_dead = true;
ret = kobject_uevent_env(
&pstatus_data->mfd->fbi->dev->kobj,
KOBJ_CHANGE, envp);
pr_err("%s: Panel has gone bad, sending uevent - %s\n",
__func__, envp[0]);
}
}
}
static ssize_t reg_write(struct file *file, const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct seq_file *s = file->private_data;
struct msm_fb_data_type *mfd = s->private;
struct mdss_panel_data *pdata;
struct mdss_mdp_ctl *ctl;
char *buf;
const char *p;
enum dbg_cmd_type cmd;
u8 data[MAX_WRITE_DATA];
int i = 0;
int j;
int ret;
struct dsi_cmd_desc dsi;
struct mdss_dsi_ctrl_pdata *ctrl_pdata = NULL;
if (!mfd->panel_power_on) {
pr_err("%s: panel is NOT on\n", __func__);
goto exit;
}
ctl = mfd_to_ctl(mfd);
if (!ctl)
goto exit;
if (mutex_lock_interruptible(&ctl->lock))
goto exit;
pdata = dev_get_platdata(&mfd->pdev->dev);
if (!pdata) {
pr_err("%s: no panel connected\n", __func__);
goto exit;
}
ctrl_pdata = container_of(pdata, struct mdss_dsi_ctrl_pdata,
panel_data);
if (!ctrl_pdata) {
pr_err("%s: Invalid input data\n", __func__);
goto exit;
}
pr_err("%s\n", __func__);
ret = setup_reg_access(&buf, ubuf, count);
if (ret)
goto exit;
ret = get_cmd_type(buf, &cmd);
if (ret) {
update_res_buf("Write - unknown type\n");
goto fail_free_all;
}
p = buf;
p = p+4;
/* Get first param, Register */
if (sscanf(p, "%4hhx", &data[0]) != 1) {
update_res_buf("Write - parameter error\n");
ret = -EINVAL;
goto fail_free_all;
}
i++;
while (isxdigit(*p) || (*p == 'x'))
p++;
ret = get_parameters(p, data, ARRAY_SIZE(data) - 1, &i);
if (ret)
goto fail_free_all;
ret = prepare_for_reg_access(mfd);
if (ret)
goto fail_free_all;
if (cmd == DCS) {
if (i == 1) { /* 0 parameters */
dsi.dchdr.dtype = DTYPE_DCS_WRITE;
} else if (i == 2) { /* 1 parameter */
dsi.dchdr.dtype = DTYPE_DCS_WRITE1;
} else { /* Many parameters */
dsi.dchdr.dtype = DTYPE_DCS_LWRITE;
}
} else {
if (i == 1) { /* 0 parameters */
dsi.dchdr.dtype = DTYPE_GEN_WRITE;
} else if (i == 2) { /* 1 parameter */
dsi.dchdr.dtype = DTYPE_GEN_WRITE1;
} else if (i == 3) { /* 2 parameters */
dsi.dchdr.dtype = DTYPE_GEN_WRITE2;
} else { /* Many parameters */
dsi.dchdr.dtype = DTYPE_GEN_LWRITE;
}
}
dsi.dchdr.last = 1;
dsi.dchdr.vc = 0;
dsi.dchdr.ack = 0;
dsi.dchdr.wait = 0;
dsi.dchdr.dlen = i;
dsi.payload = data;
pr_err("%s: last = %d, vc = %d, ack = %d, wait = %d, dlen = %d\n",
__func__,
dsi.dchdr.last, dsi.dchdr.vc, dsi.dchdr.ack, dsi.dchdr.wait,
dsi.dchdr.dlen);
for (j = 0; j < i; j++)
pr_err("%s: payload[%d] = 0x%x\n",
__func__, j, dsi.payload[j]);
mdss_dsi_cmds_tx(ctrl_pdata, &dsi, 1);
ret = post_reg_access(mfd);
if (ret)
goto fail_free_all;
print_params(dsi.dchdr.dtype, data[0], i, dsi.payload);
mutex_unlock(&ctl->lock);
fail_free_all:
kfree(buf);
exit:
return count;
}
static ssize_t reg_read(struct file *file, const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct seq_file *s = file->private_data;
struct msm_fb_data_type *mfd = s->private;
struct mdss_panel_data *pdata;
struct mdss_mdp_ctl *ctl;
u8 params[3]; /* No more than reg + two parameters is allowed */
char *buf;
const char *p;
int ret;
int nbr_bytes_to_read;
int i;
int j;
enum dbg_cmd_type cmd;
struct dsi_cmd_desc dsi;
struct mdss_dsi_ctrl_pdata *ctrl_pdata = NULL;
if (!mfd->panel_power_on) {
pr_err("%s: panel is NOT on\n", __func__);
goto exit;
}
ctl = mfd_to_ctl(mfd);
if (!ctl)
goto exit;
if (mutex_lock_interruptible(&ctl->lock))
goto exit;
pdata = dev_get_platdata(&mfd->pdev->dev);
if (!pdata) {
pr_err("%s: no panel connected\n", __func__);
goto exit;
}
ctrl_pdata = container_of(pdata, struct mdss_dsi_ctrl_pdata,
panel_data);
if (!ctrl_pdata) {
pr_err("%s: Invalid input data\n", __func__);
goto exit;
}
pr_err("%s\n", __func__);
ret = setup_reg_access(&buf, ubuf, count);
if (ret)
goto exit;
ret = get_cmd_type(buf, &cmd);
if (ret) {
update_res_buf("Read - unknown type\n");
goto fail_free_all;
}
p = buf;
p = p+4;
/* Get nbr_bytes_to_read */
if (sscanf(p, "%d", &nbr_bytes_to_read) != 1) {
update_res_buf("Read - parameter error\n");
ret = -EINVAL;
goto fail_free_all;
}
while (isxdigit(*p) || (*p == 'x'))
p++;
pr_err("%s: nbr_bytes_to_read = %d\n", __func__, nbr_bytes_to_read);
i = 0;
ret = get_parameters(p, params, ARRAY_SIZE(params), &i);
if (ret)
goto fail_free_all;
ret = prepare_for_reg_access(mfd);
if (ret)
goto fail_free_all;
if (cmd == DCS) {
dsi.dchdr.dtype = DTYPE_DCS_READ;
} else {
if (i == 1) { /* 0 parameters */
dsi.dchdr.dtype = DTYPE_GEN_READ;
} else if (i == 2) { /* 1 parameter */
dsi.dchdr.dtype = DTYPE_GEN_READ1;
} else { /* 2 paramters */
dsi.dchdr.dtype = DTYPE_GEN_READ2;
}
}
dsi.dchdr.last = 1;
dsi.dchdr.vc = 0;
dsi.dchdr.ack = 1;
dsi.dchdr.wait = 5;
dsi.dchdr.dlen = i;
dsi.payload = params;
pr_err("%s: dtype=%d, last=%d, vc=%d, ack=%d, wait=%d, dlen=%d\n",
__func__,
dsi.dchdr.dtype, dsi.dchdr.last, dsi.dchdr.vc, dsi.dchdr.ack,
dsi.dchdr.wait, dsi.dchdr.dlen);
for (j = 0; j < i; j++)
pr_err("%s: payload[%d] = 0x%x\n",
__func__, j, dsi.payload[j]);
mdss_dsi_cmds_rx(ctrl_pdata, &dsi, nbr_bytes_to_read, 0);
ret = post_reg_access(mfd);
if (ret)
goto fail_free_all;
print_params(dsi.dchdr.dtype, params[0], ctrl_pdata->rx_buf.len,
ctrl_pdata->rx_buf.data);
mutex_unlock(&ctl->lock);
fail_free_all:
kfree(buf);
exit:
return count;
}
/*
* mdss_check_dsi_ctrl_status() - Check MDP5 DSI controller status periodically.
* @work : dsi controller status data
* @interval : duration in milliseconds to schedule work queue
*
* This function calls check_status API on DSI controller to send the BTA
* command. If DSI controller fails to acknowledge the BTA command, it sends
* the PANEL_ALIVE=0 status to HAL layer.
*/
void mdss_check_dsi_ctrl_status(struct work_struct *work, uint32_t interval)
{
struct dsi_status_data *pstatus_data = NULL;
struct mdss_panel_data *pdata = NULL;
struct mipi_panel_info *mipi = NULL;
struct mdss_dsi_ctrl_pdata *ctrl_pdata = NULL;
struct mdss_overlay_private *mdp5_data = NULL;
struct mdss_mdp_ctl *ctl = NULL;
int ret = 0;
pstatus_data = container_of(to_delayed_work(work),
struct dsi_status_data, check_status);
if (!pstatus_data || !(pstatus_data->mfd)) {
pr_err("%s: mfd not available\n", __func__);
return;
}
pdata = dev_get_platdata(&pstatus_data->mfd->pdev->dev);
if (!pdata) {
pr_err("%s: Panel data not available\n", __func__);
return;
}
mipi = &pdata->panel_info.mipi;
ctrl_pdata = container_of(pdata, struct mdss_dsi_ctrl_pdata,
panel_data);
if (!ctrl_pdata || (!ctrl_pdata->check_status &&
(ctrl_pdata->status_mode != ESD_TE))) {
pr_err("%s: DSI ctrl or status_check callback not available\n",
__func__);
return;
}
mdp5_data = mfd_to_mdp5_data(pstatus_data->mfd);
ctl = mfd_to_ctl(pstatus_data->mfd);
if (!ctl) {
pr_err("%s: Display is off\n", __func__);
return;
}
if (ctl->power_state == MDSS_PANEL_POWER_OFF) {
schedule_delayed_work(&pstatus_data->check_status,
msecs_to_jiffies(interval));
pr_debug("%s: ctl not powered on\n", __func__);
return;
}
if (ctrl_pdata->status_mode == ESD_TE) {
mdss_check_te_status(ctrl_pdata, pstatus_data, interval);
return;
}
mutex_lock(&ctrl_pdata->mutex);
/*
* TODO: Because mdss_dsi_cmd_mdp_busy has made sure DMA to
* be idle in mdss_dsi_cmdlist_commit, it is not necessary
* to acquire ov_lock in case of video mode. Removing this
* lock to fix issues so that ESD thread would not block other
* overlay operations. Need refine this lock for command mode
*/
if (mipi->mode == DSI_CMD_MODE)
mutex_lock(&mdp5_data->ov_lock);
if (mdss_panel_is_power_off(pstatus_data->mfd->panel_power_state)) {
if (mipi->mode == DSI_CMD_MODE)
mutex_unlock(&mdp5_data->ov_lock);
mutex_unlock(&ctrl_pdata->mutex);
pr_err("%s: DSI turning off, avoiding panel status check\n",
__func__);
return;
}
/*
* For the command mode panels, we return pan display
* IOCTL on vsync interrupt. So, after vsync interrupt comes
* and when DMA_P is in progress, if the panel stops responding
* and if we trigger BTA before DMA_P finishes, then the DSI
* FIFO will not be cleared since the DSI data bus control
* doesn't come back to the host after BTA. This may cause the
* display reset not to be proper. Hence, wait for DMA_P done
* for command mode panels before triggering BTA.
*/
if (ctl->wait_pingpong)
ctl->wait_pingpong(ctl, NULL);
pr_debug("%s: DSI ctrl wait for ping pong done\n", __func__);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON);
ret = ctrl_pdata->check_status(ctrl_pdata);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF);
if (mipi->mode == DSI_CMD_MODE)
mutex_unlock(&mdp5_data->ov_lock);
mutex_unlock(&ctrl_pdata->mutex);
if ((pstatus_data->mfd->panel_power_state == MDSS_PANEL_POWER_ON)) {
if (ret > 0)
schedule_delayed_work(&pstatus_data->check_status,
msecs_to_jiffies(interval));
else
mdss_report_panel_dead(pstatus_data);
}
}
