common/csi: Refactor omv_csi_init.

Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
This commit is contained in:
iabdalkader 2025-07-02 18:12:34 +02:00
parent 7bd8c2ce53
commit ecbdbdfde1
2 changed files with 71 additions and 3 deletions

View File

@ -119,6 +119,7 @@ uint16_t resolution[][2] = {
{2592, 1944}, /* WQXGA2 */
};
static omv_i2c_t csi_i2c;
omv_csi_t csi_all[OMV_CSI_MAX_DEVICES] = {0};
__weak void omv_csi_init0() {
@ -149,9 +150,73 @@ __weak void omv_csi_init0() {
}
__weak int omv_csi_init() {
// Reset the csi state
memset(csi_all, 0, sizeof(csi_all));
return OMV_CSI_ERROR_CTL_UNSUPPORTED;
int ret = 0;
// List of I2C buses to scan.
uint32_t buses[][2] = {
{ OMV_CSI_I2C_ID, OMV_CSI_I2C_SPEED },
#if defined(OMV_CSI_I2C_ALT_ID)
{ OMV_CSI_I2C_ALT_ID, OMV_CSI_I2C_ALT_SPEED },
#endif
};
// Configure CSI GPIOs
#if defined(OMV_CSI_RESET_PIN)
omv_gpio_config(OMV_CSI_RESET_PIN, OMV_GPIO_MODE_OUTPUT, OMV_GPIO_PULL_NONE, OMV_GPIO_SPEED_LOW, -1);
#endif
#if defined(OMV_CSI_FSYNC_PIN)
omv_gpio_config(OMV_CSI_FSYNC_PIN, OMV_GPIO_MODE_OUTPUT, OMV_GPIO_PULL_NONE, OMV_GPIO_SPEED_LOW, -1);
#endif
#if defined(OMV_CSI_POWER_PIN)
omv_gpio_config(OMV_CSI_POWER_PIN, OMV_GPIO_MODE_OUTPUT, OMV_GPIO_PULL_NONE, OMV_GPIO_SPEED_LOW, -1);
#endif
// Initialize the CSIs using the port's ops as defaults,
// which can be overridden by sensor drivers during probe.
for (size_t i=0; i<OMV_CSI_MAX_DEVICES; i++) {
omv_csi_t *csi = &csi_all[i];
memset(csi, 0, sizeof(omv_csi_t));
csi->i2c = &csi_i2c;
csi->fb = framebuffer_get(-1);
csi->color_palette = rainbow_table;
omv_csi_ops_init(csi);
}
// Configure the csi external clock (XCLK).
if (omv_csi_set_clk_frequency(OMV_CSI_CLK_FREQUENCY) != 0) {
return OMV_CSI_ERROR_TIM_INIT_FAILED;
}
// Detect and initialize sensor(s).
for (uint32_t i=0, n_buses=OMV_ARRAY_SIZE(buses); i<n_buses; i++) {
// Initialize the camera bus.
omv_i2c_init(&csi_i2c, buses[i][0], buses[i][1]);
if (!(ret = omv_csi_probe(&csi_i2c))) {
break;
}
omv_i2c_deinit(&csi_i2c);
// Scan the next bus or fail if this is the last one.
if ((i + 1) == n_buses) {
return ret;
}
}
// Configure the DCMI interface.
for (size_t i=0; i<OMV_CSI_MAX_DEVICES; i++) {
omv_csi_t *csi = &csi_all[i];
if (omv_csi_config(csi, OMV_CSI_CONFIG_INIT) != 0) {
return OMV_CSI_ERROR_CSI_INIT_FAILED;
}
}
// Clear fb_enabled flag.
JPEG_FB()->enabled = 0;
return 0;
}
omv_csi_t *omv_csi_get(int id) {

View File

@ -400,6 +400,9 @@ void omv_csi_init0();
// Initializes CSI struct with default ops.
int omv_csi_init();
// Implemented by ports to set the default CSI ops.
int omv_csi_ops_init(omv_csi_t *csi);
// Return CSI instance.
// If id == -1, return the main csi, otherwise look up csi by chip-id.
omv_csi_t *omv_csi_get(int id);