概述
///dts里面
qcom,mdss-dsi-panel-status-check-mode = "reg_read";
/代码流程
mdss_check_dsi_ctrl_status() ------>>>>
mdss_dsi_reg_status_check ------>>>>
mdss_dsi_read_status 先读取寄存器状态----->
rc = mdss_dsi_cmdlist_put(ctrl, &cmdreq);
------->ret = ctrl->cmdlist_commit(ctrl, 0);
------->mdss_dsi_cmdlist_commit(ctrl_pdata, 1);
-------->ret = mdss_dsi_cmdlist_rx(ctrl, req);
----->len = mdss_dsi_cmds_rx(ctrl, req->cmds, req->rlen,(req->flags & CMD_REQ_DMA_TPG));
------>>>>后mdss_dsi_gen_read_status 比较寄存器状态调试代码如下：
diff --git a/msm-3.18/drivers/video/msm/mdss/mdss_dsi_cmd.c b/msm-3.18/drivers/video/msm/mdss/mdss_dsi_cmd.c
index d07b504..b15cf26 100644
--- a/msm-3.18/drivers/video/msm/mdss/mdss_dsi_cmd.c
+++ b/msm-3.18/drivers/video/msm/mdss/mdss_dsi_cmd.c
@@ -774,7 +774,7 @@ int mdss_dsi_cmdlist_put(struct mdss_dsi_ctrl_pdata *ctrl,
clist->tot--;
}
- pr_debug("%s: tot=%d put=%d get=%dn", __func__,
+ printk("%s: tot=%d put=%d get=%dn", __func__,
clist->tot, clist->put, clist->get);
mutex_unlock(&ctrl->cmdlist_mutex);
diff --git a/msm-3.18/drivers/video/msm/mdss/mdss_dsi_host.c b/msm-3.18/drivers/video/msm/mdss/mdss_dsi_host.c
index eda0e02..5877fa8 100644
--- a/msm-3.18/drivers/video/msm/mdss/mdss_dsi_host.c
+++ b/msm-3.18/drivers/video/msm/mdss/mdss_dsi_host.c
@@ -1110,10 +1110,18 @@ static int mdss_dsi_read_status(struct mdss_dsi_ctrl_pdata *ctrl)
memset(&cmdreq, 0, sizeof(cmdreq));
cmdreq.cmds = ctrl->status_cmds.cmds + i;
cmdreq.cmds_cnt = 1;
+ //cmdreq.flags = CMD_REQ_COMMIT | CMD_REQ_RX;
cmdreq.flags = CMD_REQ_COMMIT | CMD_CLK_CTRL | CMD_REQ_RX;
cmdreq.rlen = ctrl->status_cmds_rlen[i];
cmdreq.cb = NULL;
cmdreq.rbuf = ctrl->status_buf.data;
+ printk("deanji cmdreq.cmds %d %d %d %d %d %d %dn",(cmdreq.cmds->dchdr).dtype,(cmdreq.cmds->dchdr).last,(cmdreq.cmds->dchdr).vc,
+ (cmdreq.cmds->dchdr).ack,(cmdreq.cmds->dchdr).wait,(cmdreq.cmds->dchdr).dlen,cmdreq.cmds->payload[0]);
+ printk("deanji cmdreq.rlen:%d cmdreq.rbuf:%d n",cmdreq.rlen,cmdreq.rbuf[0]);
+ if (ctrl->status_cmds.link_state == DSI_LP_MODE){
+ printk("deanji DSI_LP_MODEn");
+ } else if(ctrl->status_cmds.link_state == DSI_HS_MODE)
+ printk("deanji DSI_HS_MODEn");
if (ctrl->status_cmds.link_state == DSI_LP_MODE)
cmdreq.flags |= CMD_REQ_LP_MODE;
@@ -1156,6 +1164,7 @@ int mdss_dsi_reg_status_check(struct mdss_dsi_ctrl_pdata *ctrl_pdata)
}
pr_debug("%s: Checking Register statusn", __func__);
+ printk("deanji %s: Checking Register statusn", __func__);
mdss_dsi_clk_ctrl(ctrl_pdata, ctrl_pdata->dsi_clk_handle,
MDSS_DSI_ALL_CLKS, MDSS_DSI_CLK_ON);
@@ -1163,6 +1172,7 @@ int mdss_dsi_reg_status_check(struct mdss_dsi_ctrl_pdata *ctrl_pdata)
sctrl_pdata = mdss_dsi_get_other_ctrl(ctrl_pdata);
if (!mdss_dsi_sync_wait_enable(ctrl_pdata)) {
ret = mdss_dsi_read_status(ctrl_pdata);
+ printk("deanji mdss_dsi_reg_status_check 111n");
} else {
/*
* Read commands to check ESD status are usually sent at
@@ -1172,11 +1182,16 @@ int mdss_dsi_reg_status_check(struct mdss_dsi_ctrl_pdata *ctrl_pdata)
* controller so that when the commands are triggered,
* both controllers receive it at the same time.
*/
+
+ if(sctrl_pdata) printk("deanji sctrl_pdata is not NULL");
+ else printk("deanji sctrl_pdata is NULL");
if (mdss_dsi_sync_wait_trigger(ctrl_pdata)) {
+ printk("deanji mdss_dsi_reg_status_check 222n");
if (sctrl_pdata)
ret = mdss_dsi_read_status(sctrl_pdata);
ret = mdss_dsi_read_status(ctrl_pdata);
} else {
+ printk("deanji mdss_dsi_reg_status_check 333n");
ret = mdss_dsi_read_status(ctrl_pdata);
if (sctrl_pdata)
ret = mdss_dsi_read_status(sctrl_pdata);
@@ -1188,6 +1203,16 @@ int mdss_dsi_reg_status_check(struct mdss_dsi_ctrl_pdata *ctrl_pdata)
* by the panel. Success value is greater than zero and failure
* case returns zero.
*/
+ printk("deanji %s %dn",__func__,ret);
+/* if(ret == 0){
+ printk("deanji chongfa n");
+ if (!mdss_dsi_sync_wait_enable(ctrl_pdata)) {
+ ret = mdss_dsi_read_status(ctrl_pdata);
+ printk("deanji 4444 %s %dn",__func__,ret);
+ }
+ }
+*/
+
if (ret > 0) {
if (!mdss_dsi_sync_wait_enable(ctrl_pdata) ||
mdss_dsi_sync_wait_trigger(ctrl_pdata))
@@ -1788,7 +1813,8 @@ int mdss_dsi_cmds_rx(struct mdss_dsi_ctrl_pdata *ctrl,
struct dsi_buf *tp, *rp;
char cmd;
struct mdss_dsi_ctrl_pdata *mctrl = NULL;
-
+ int ii = 0;
+ printk("deanji mdss_dsi_cmds_rx use_dma_tpg is %x n",use_dma_tpg);
if (ctrl->panel_data.panel_info.panel_ack_disabled) {
pr_err("%s: ACK from Client not supportedn", __func__);
@@ -1823,6 +1849,8 @@ int mdss_dsi_cmds_rx(struct mdss_dsi_ctrl_pdata *ctrl,
}
}
+ printk("deanji %s rlen:%d n",__func__,rlen);
+
do_send:
ctrl->cmd_cfg_restore = __mdss_dsi_cmd_mode_config(ctrl, 1);
@@ -1847,7 +1875,7 @@ do_send:
end = 0;
mdss_dsi_buf_init(rp);
while (!end) {
- pr_debug("%s: rlen=%d pkt_size=%d rx_byte=%dn",
+ printk("%s: rlen=%d pkt_size=%d rx_byte=%dn",
__func__, rlen, pkt_size, rx_byte);
/*
* Skip max_pkt_size dcs cmd if
@@ -1884,7 +1912,7 @@ do_send:
goto end;
}
ctrl->cur_max_pkt_size = pkt_size;
- pr_debug("%s: max_pkt_size=%d sentn",
+ printk("%s: max_pkt_size=%d sentn",
__func__, pkt_size);
skip_max_pkt_size:
@@ -1930,6 +1958,7 @@ skip_max_pkt_size:
* after that dcs header lost during shift into registers
*/
dlen = mdss_dsi_cmd_dma_rx(ctrl, rp, rx_byte);
+ printk("deanji mdss_dsi_cmd_dma_rx dlen=%d n",dlen);
if (!dlen)
goto end;
@@ -1956,7 +1985,7 @@ skip_max_pkt_size:
else
pkt_size += data_byte;
}
- pr_debug("%s: rp data=%x len=%d dlen=%d diff=%dn",
+ printk("%s: rp data=%x len=%d dlen=%d diff=%dn",
__func__, (int) (unsigned long) rp->data,
rp->len, dlen, diff);
}
@@ -1967,14 +1996,18 @@ skip_max_pkt_size:
* data buffer to skip the bytes which are not
* updated.
*/
+
if (rp->read_cnt < 16 && !short_response)
rp->data = rp->start + (16 - rp->read_cnt);
else
rp->data = rp->start;
+
+ printk("deanji %s rp->read_cnt is %d n",__func__,rp->read_cnt);
+ for(ii=0;ii<rp->read_cnt;ii++) printk("rp->data[%d]:%d n",ii,rp->data[ii]);
cmd = rp->data[0];
switch (cmd) {
case DTYPE_ACK_ERR_RESP:
- pr_debug("%s: rx ACK_ERR_PACLAGEn", __func__);
+ printk("%s: rx ACK_ERR_PACLAGEn", __func__);
rp->len = 0;
rp->read_cnt = 0;
case DTYPE_GEN_READ1_RESP:
@@ -1991,6 +2024,7 @@ skip_max_pkt_size:
break;
default:
pr_warning("%s:Invalid response cmdn", __func__);
+ printk("deanji Invalid response cmd:%dn",cmd);
rp->len = 0;
rp->read_cnt = 0;
}
@@ -2505,6 +2539,8 @@ int mdss_dsi_cmdlist_rx(struct mdss_dsi_ctrl_pdata *ctrl,
struct dsi_buf *rp;
int len = 0;
+ printk("deanji %s entered n",__func__);
+
if (req->rbuf) {
rp = &ctrl->rx_buf;
len = mdss_dsi_cmds_rx(ctrl, req->cmds, req->rlen,
@@ -2575,6 +2611,8 @@ int mdss_dsi_cmdlist_commit(struct mdss_dsi_ctrl_pdata *ctrl, int from_mdp)
bool hs_req = false;
bool cmd_mutex_acquired = false;
+ printk("deanji %s entered n",__func__);
+
if (from_mdp) { /* from mdp kickoff */
if (!ctrl->burst_mode_enabled) {
mutex_lock(&ctrl->cmd_mutex);
@@ -2621,7 +2659,7 @@ int mdss_dsi_cmdlist_commit(struct mdss_dsi_ctrl_pdata *ctrl, int from_mdp)
if (req && (ctrl->shared_data->hw_rev < MDSS_DSI_HW_REV_103))
req->flags &= ~CMD_REQ_DMA_TPG;
- pr_debug("%s: ctrl=%d from_mdp=%d pid=%dn", __func__,
+ printk("%s: ctrl=%d from_mdp=%d pid=%dn", __func__,
ctrl->ndx, from_mdp, current->pid);
if (from_mdp) { /* from mdp kickoff */
@@ -2647,7 +2685,7 @@ int mdss_dsi_cmdlist_commit(struct mdss_dsi_ctrl_pdata *ctrl, int from_mdp)
MDSS_XLOG(ctrl->ndx, req->flags, req->cmds_cnt, from_mdp, current->pid);
- pr_debug("%s: from_mdp=%d pid=%dn", __func__, from_mdp, current->pid);
+ printk("%s: from_mdp=%d pid=%dn", __func__, from_mdp, current->pid);
if (!(req->flags & CMD_REQ_DMA_TPG)) {
/*
@@ -2693,6 +2731,7 @@ int mdss_dsi_cmdlist_commit(struct mdss_dsi_ctrl_pdata *ctrl, int from_mdp)
mdss_dsi_set_tx_power_mode(0, &ctrl->panel_data);
if (req->flags & CMD_REQ_RX)
+// ret = msm_dsi_cmdlist_rx(ctrl, req);
ret = mdss_dsi_cmdlist_rx(ctrl, req);
else
ret = mdss_dsi_cmdlist_tx(ctrl, req);
diff --git a/msm-3.18/drivers/video/msm/mdss/mdss_dsi_panel.c b/msm-3.18/drivers/video/msm/mdss/mdss_dsi_panel.c
index c238c81..7f75280 100644
--- a/msm-3.18/drivers/video/msm/mdss/mdss_dsi_panel.c
+++ b/msm-3.18/drivers/video/msm/mdss/mdss_dsi_panel.c
@@ -943,7 +943,7 @@ static int mdss_dsi_parse_dcs_cmds(struct device_node *np,
pcmds->link_state = DSI_LP_MODE;
}
- pr_debug("%s: dcs_cmd=%x len=%d, cmd_cnt=%d link_state=%dn", __func__,
+ printk("%s: dcs_cmd=%x len=%d, cmd_cnt=%d link_state=%dn", __func__,
pcmds->buf[0], pcmds->blen, pcmds->cmd_cnt, pcmds->link_state);
return 0;
@@ -1506,6 +1506,15 @@ static bool mdss_dsi_cmp_panel_reg_v2(struct mdss_dsi_ctrl_pdata *ctrl)
for (i = 0; i < ctrl->status_cmds.cmd_cnt; i++)
len += lenp[i];
+ printk("deanji mdss_dsi_cmp_panel_reg_v2 len:%d n",len);
+
+ for (j = 0; j < ctrl->groups; ++j) {
+ for (i = 0; i < len; ++i) {
+ printk("deanji ctrl->return_buf[]:%d ctrl->status_value[group + i]%dn",
+ ctrl->return_buf[i],ctrl->status_value[group + i]);
+ }
+ }
+
for (j = 0; j < ctrl->groups; ++j) {
for (i = 0; i < len; ++i) {
if (ctrl->return_buf[i] !=
@@ -1523,10 +1532,12 @@ static bool mdss_dsi_cmp_panel_reg_v2(struct mdss_dsi_ctrl_pdata *ctrl)
static int mdss_dsi_gen_read_status(struct mdss_dsi_ctrl_pdata *ctrl_pdata)
{
+ printk("deanji %s enter n",__func__);
if (!mdss_dsi_cmp_panel_reg_v2(ctrl_pdata)) {
pr_err("%s: Read back value from panel is incorrectn",
__func__);
return -EINVAL;
+ //return 1;
} else {
return 1;
}
@@ -1725,6 +1736,9 @@ static void mdss_dsi_parse_esd_params(struct device_node *np,
pinfo->esd_check_enabled = of_property_read_bool(np,
"qcom,esd-check-enabled");
+ if (!pinfo->esd_check_enabled) printk("deanji esd is no n");
+ else printk("esd is ok n");
+
if (!pinfo->esd_check_enabled)
return;
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