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feat(mipi_dsi): use DCS short packet when possible

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This commit is contained in:
morris 2024-03-06 17:24:55 +08:00
parent 9d381c2ae8
commit d0509988a2
1 changed files with 36 additions and 18 deletions
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54
components/hal/mipi_dsi_hal.c
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@ -99,6 +99,9 @@ void mipi_dsi_hal_phy_write_register(mipi_dsi_hal_context_t *hal, uint8_t reg_ad
void mipi_dsi_hal_host_gen_write_dcs_command(mipi_dsi_hal_context_t *hal, uint8_t vc,
uint32_t command, uint32_t command_bytes, const void *param, uint16_t param_size)
{
mipi_dsi_data_type_t dt = 0;
uint8_t pkt_hdr_msb = 0;
uint8_t pkt_hdr_lsb = 0;
const uint8_t *payload = param;
// the payload size is the command size plus the parameter size
uint32_t payload_size = command_bytes + param_size;
@ -109,30 +112,45 @@ void mipi_dsi_hal_host_gen_write_dcs_command(mipi_dsi_hal_context_t *hal, uint8_
for (int i = 0; i < merged_size; i++) {
temp |= payload[i] << (8 * (i + command_bytes));
}
while (mipi_dsi_host_ll_gen_is_write_fifo_full(hal->host));
mipi_dsi_host_ll_gen_write_payload_fifo(hal->host, temp);
// write the remaining parameters into FIFO
payload += merged_size;
uint32_t remain_size = param_size - merged_size;
while (remain_size >= 4) {
temp = *(uint32_t *)payload;
while (mipi_dsi_host_ll_gen_is_write_fifo_full(hal->host));
mipi_dsi_host_ll_gen_write_payload_fifo(hal->host, temp);
payload += 4;
remain_size -= 4;
}
if (remain_size) {
temp = *(uint32_t *)payload;
temp &= (1 << (8 * remain_size)) - 1;
if (payload_size > 2) {
// write the first 32-bit word into FIFO
while (mipi_dsi_host_ll_gen_is_write_fifo_full(hal->host));
mipi_dsi_host_ll_gen_write_payload_fifo(hal->host, temp);
// write the remaining parameters into FIFO
payload += merged_size;
uint32_t remain_size = param_size - merged_size;
while (remain_size >= 4) {
temp = *(uint32_t *)payload;
while (mipi_dsi_host_ll_gen_is_write_fifo_full(hal->host));
mipi_dsi_host_ll_gen_write_payload_fifo(hal->host, temp);
payload += 4;
remain_size -= 4;
}
if (remain_size) {
temp = *(uint32_t *)payload;
temp &= (1 << (8 * remain_size)) - 1;
while (mipi_dsi_host_ll_gen_is_write_fifo_full(hal->host));
mipi_dsi_host_ll_gen_write_payload_fifo(hal->host, temp);
}
dt = MIPI_DSI_DT_DCS_LONG_WRITE;
pkt_hdr_msb = (payload_size >> 8) & 0xFF;
pkt_hdr_lsb = payload_size & 0xFF;
} else if (payload_size == 2) {
dt = MIPI_DSI_DT_DCS_SHORT_WRITE_1;
pkt_hdr_msb = (temp >> 8) & 0xFF;
pkt_hdr_lsb = temp & 0xFF;
} else if (payload_size == 1) {
dt = MIPI_DSI_DT_DCS_SHORT_WRITE_0;
pkt_hdr_msb = (temp >> 8) & 0xFF;
pkt_hdr_lsb = temp & 0xFF;
}
uint8_t wc_msb = (payload_size >> 8) & 0xFF;
uint8_t wc_lsb = payload_size & 0xFF;
// write the packet header
while (mipi_dsi_host_ll_gen_is_cmd_fifo_full(hal->host));
mipi_dsi_host_ll_gen_set_packet_header(hal->host, vc, MIPI_DSI_DT_DCS_LONG_WRITE, wc_msb, wc_lsb);
mipi_dsi_host_ll_gen_set_packet_header(hal->host, vc, dt, pkt_hdr_msb, pkt_hdr_lsb);
}
void mipi_dsi_hal_host_gen_write_short_packet(mipi_dsi_hal_context_t *hal, uint8_t vc, mipi_dsi_data_type_t dt, uint16_t header_data)