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ports/stm32: Refactor CSI.
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
This commit is contained in:
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6cfd8dd82b
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@ -95,129 +95,64 @@ void omv_csi_mdma_irq_handler(void) {
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}
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#endif
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#if USE_DMA
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static int omv_csi_dma_config() {
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// DMA Stream configuration
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csi.dma.Instance = DMA2_Stream1;
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#if defined(STM32H7)
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csi.dma.Init.Request = DMA_REQUEST_DCMI;
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#else
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csi.dma.Init.Channel = DMA_CHANNEL_1;
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#endif
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csi.dma.Init.Direction = DMA_PERIPH_TO_MEMORY;
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csi.dma.Init.MemInc = DMA_MINC_ENABLE;
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csi.dma.Init.PeriphInc = DMA_PINC_DISABLE;
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csi.dma.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
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csi.dma.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
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csi.dma.Init.Mode = DMA_NORMAL;
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csi.dma.Init.Priority = DMA_PRIORITY_HIGH;
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csi.dma.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
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csi.dma.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
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csi.dma.Init.MemBurst = DMA_MBURST_INC4;
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csi.dma.Init.PeriphBurst = DMA_PBURST_SINGLE;
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// Initialize the DMA stream
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HAL_DMA_DeInit(&csi.dma);
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if (HAL_DMA_Init(&csi.dma) != HAL_OK) {
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return -1;
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}
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// Set DMA IRQ handle
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dma_utils_set_irq_descr(DMA2_Stream1, &csi.dma);
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// Configure the DMA IRQ Channel
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NVIC_SetPriority(DMA2_Stream1_IRQn, IRQ_PRI_DMA21);
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#if USE_MDMA
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csi.mdma0.Instance = MDMA_CHAN_TO_INSTANCE(OMV_MDMA_CHANNEL_DCMI_0);
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csi.mdma1.Instance = MDMA_CHAN_TO_INSTANCE(OMV_MDMA_CHANNEL_DCMI_1);
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#endif
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return 0;
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}
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#endif
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void omv_csi_init0() {
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omv_csi_abort(&csi, true, false);
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// Disable callbacks
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omv_csi_set_vsync_callback(NULL);
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omv_csi_set_frame_callback(NULL);
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csi.disable_delays = false;
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// Re-init i2c bus to reset the bus state after soft reset, which
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// could have interrupted the bus in the middle of a transfer.
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if (csi.i2c_bus.initialized) {
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// Reinitialize the bus using the last used id and speed.
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omv_i2c_init(&csi.i2c_bus, csi.i2c_bus.id, csi.i2c_bus.speed);
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}
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csi.disable_delays = false;
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// Disable VSYNC IRQ and callback
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omv_csi_set_vsync_callback(NULL);
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// Disable Frame callback.
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omv_csi_set_frame_callback(NULL);
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}
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int omv_csi_init() {
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int init_ret = 0;
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// List of I2C buses to scan.
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uint32_t buses[][2] = {
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{OMV_CSI_I2C_ID, OMV_CSI_I2C_SPEED},
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#if defined(OMV_CSI_I2C_ALT_ID)
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{OMV_CSI_I2C_ALT_ID, OMV_CSI_I2C_ALT_SPEED},
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#endif
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};
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// Reset the csi state
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memset(&csi, 0, sizeof(omv_csi_t));
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// Set default framebuffer
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csi.fb = framebuffer_get(0);
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// Set default snapshot function.
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csi.snapshot = omv_csi_snapshot;
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// Configure the csi external clock (XCLK).
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if (omv_csi_set_clk_frequency(OMV_CSI_CLK_FREQUENCY) != 0) {
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return OMV_CSI_ERROR_TIM_INIT_FAILED;
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}
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// Detect and initialize the image sensor.
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for (uint32_t i = 0, n_buses = OMV_ARRAY_SIZE(buses); i < n_buses; i++) {
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uint32_t id = buses[i][0], speed = buses[i][1];
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if ((init_ret = omv_csi_probe_init(id, speed)) == 0) {
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break;
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}
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omv_i2c_deinit(&csi.i2c_bus);
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// Scan the next bus or fail if this is the last one.
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if ((i + 1) == n_buses) {
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return init_ret;
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}
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}
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// Configure the DCMI DMA Stream
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#if USE_DMA
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if (omv_csi_dma_config() != 0) {
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return OMV_CSI_ERROR_DMA_INIT_FAILED;
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}
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#endif
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// Configure the DCMI interface.
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if (omv_csi_config(OMV_CSI_CONFIG_INIT) != 0) {
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return OMV_CSI_ERROR_CSI_INIT_FAILED;
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}
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// Clear fb_enabled flag.
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JPEG_FB()->enabled = 0;
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// Set default color palette.
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csi.color_palette = rainbow_table;
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csi.detected = true;
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return 0;
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}
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int omv_csi_config(omv_csi_config_t config) {
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if (config == OMV_CSI_CONFIG_INIT) {
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#if USE_DMA
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// DMA Stream configuration
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csi.dma.Instance = DMA2_Stream1;
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#if defined(STM32H7)
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csi.dma.Init.Request = DMA_REQUEST_DCMI;
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#else
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csi.dma.Init.Channel = DMA_CHANNEL_1;
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#endif
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csi.dma.Init.Direction = DMA_PERIPH_TO_MEMORY;
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csi.dma.Init.MemInc = DMA_MINC_ENABLE;
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csi.dma.Init.PeriphInc = DMA_PINC_DISABLE;
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csi.dma.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
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csi.dma.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
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csi.dma.Init.Mode = DMA_NORMAL;
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csi.dma.Init.Priority = DMA_PRIORITY_HIGH;
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csi.dma.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
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csi.dma.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
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csi.dma.Init.MemBurst = DMA_MBURST_INC4;
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csi.dma.Init.PeriphBurst = DMA_PBURST_SINGLE;
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// Initialize the DMA stream
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HAL_DMA_DeInit(&csi.dma);
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if (HAL_DMA_Init(&csi.dma) != HAL_OK) {
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return -1;
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}
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// Set DMA IRQ handle
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dma_utils_set_irq_descr(DMA2_Stream1, &csi.dma);
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// Configure the DMA IRQ Channel
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NVIC_SetPriority(DMA2_Stream1_IRQn, IRQ_PRI_DMA21);
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#if USE_MDMA
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csi.mdma0.Instance = MDMA_CHAN_TO_INSTANCE(OMV_MDMA_CHANNEL_DCMI_0);
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csi.mdma1.Instance = MDMA_CHAN_TO_INSTANCE(OMV_MDMA_CHANNEL_DCMI_1);
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#endif
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#endif // USE_DMA
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// Configure DCMI/PP.
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#if USE_DCMIPP
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// Initialize the DCMIPP
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@ -352,6 +287,7 @@ int omv_csi_config(omv_csi_config_t config) {
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.ShiftBlue = 0,
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.MultiplierBlue = 128,
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};
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if (HAL_DCMIPP_PIPE_SetISPExposureConfig(&csi.dcmi, DCMIPP_PIPE, &expcfg) != HAL_OK ||
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HAL_DCMIPP_PIPE_EnableISPExposure(&csi.dcmi, DCMIPP_PIPE) != HAL_OK) {
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return OMV_CSI_ERROR_CSI_INIT_FAILED;
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@ -432,7 +368,7 @@ int omv_csi_abort(omv_csi_t *csi, bool fifo_flush, bool in_irq) {
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return 0;
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}
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uint32_t omv_csi_get_xclk_frequency() {
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uint32_t omv_csi_get_clk_frequency() {
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return (OMV_CSI_TIM_PCLK_FREQ() * 2) / (csi.tim.Init.Period + 1);
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}
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@ -1148,3 +1084,56 @@ int omv_csi_snapshot(omv_csi_t *csi, image_t *image, uint32_t flags) {
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#endif
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return 0;
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}
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int omv_csi_init() {
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int init_ret = 0;
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// List of I2C buses to scan.
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uint32_t buses[][2] = {
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{OMV_CSI_I2C_ID, OMV_CSI_I2C_SPEED},
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#if defined(OMV_CSI_I2C_ALT_ID)
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{OMV_CSI_I2C_ALT_ID, OMV_CSI_I2C_ALT_SPEED},
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#endif
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};
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// Reset the csi state
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memset(&csi, 0, sizeof(omv_csi_t));
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// Set default framebuffer
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csi.fb = framebuffer_get(0);
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// Set default snapshot function.
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csi.snapshot = omv_csi_snapshot;
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// Configure the csi external clock (XCLK).
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if (omv_csi_set_clk_frequency(OMV_CSI_CLK_FREQUENCY) != 0) {
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return OMV_CSI_ERROR_TIM_INIT_FAILED;
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}
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// Detect and initialize the image sensor.
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for (uint32_t i = 0, n_buses = OMV_ARRAY_SIZE(buses); i < n_buses; i++) {
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uint32_t id = buses[i][0], speed = buses[i][1];
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if ((init_ret = omv_csi_probe_init(id, speed)) == 0) {
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break;
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}
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omv_i2c_deinit(&csi.i2c_bus);
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// Scan the next bus or fail if this is the last one.
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if ((i + 1) == n_buses) {
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return init_ret;
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}
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}
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// Configure the DCMI interface.
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if (omv_csi_config(OMV_CSI_CONFIG_INIT) != 0) {
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return OMV_CSI_ERROR_CSI_INIT_FAILED;
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}
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// Clear fb_enabled flag.
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JPEG_FB()->enabled = 0;
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// Set default color palette.
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csi.color_palette = rainbow_table;
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csi.detected = true;
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return 0;
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}
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