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/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <delay.h>
#include <mipi/panel.h>
enum cb_err mipi_panel_parse_init_commands(const void *buf, mipi_cmd_func_t cmd_func)
{
const struct panel_init_command *init = buf;
enum mipi_dsi_transaction type;
/*
* The given commands should be in a buffer containing a packed array of
* panel_init_command and each element may be in variable size so we have
* to parse and scan.
*/
for (; init->cmd != PANEL_CMD_END; init = (const void *)buf) {
/*
* For some commands like DELAY, the init->len should not be
* counted for buf.
*/
buf += sizeof(*init);
u32 cmd = init->cmd, len = init->len;
if (cmd == PANEL_CMD_DELAY) {
mdelay(len);
continue;
}
switch (cmd) {
case PANEL_CMD_DCS:
switch (len) {
case 0:
printk(BIOS_ERR, "%s: DCS command length 0?\n", __func__);
return CB_ERR;
case 1:
type = MIPI_DSI_DCS_SHORT_WRITE;
break;
case 2:
type = MIPI_DSI_DCS_SHORT_WRITE_PARAM;
break;
default:
type = MIPI_DSI_DCS_LONG_WRITE;
break;
}
break;
case PANEL_CMD_GENERIC:
switch (len) {
case 0:
type = MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM;
break;
case 1:
type = MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM;
break;
case 2:
type = MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM;
break;
default:
type = MIPI_DSI_GENERIC_LONG_WRITE;
break;
}
break;
default:
printk(BIOS_ERR, "%s: Unknown command code: %d, "
"abort panel initialization.\n", __func__, cmd);
return CB_ERR;
}
enum cb_err ret = cmd_func(type, init->data, len);
if (ret != CB_SUCCESS)
return ret;
buf += len;
}
return CB_SUCCESS;
}
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