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https://github.com/openmv/openmv.git
synced 2025-11-04 14:49:50 +08:00
ports/alif: Refactor omv_csi_init.
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
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06c8dcda17
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71082ad573
@ -103,6 +103,11 @@ void alif_hal_init(void) {
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// Configure and enable USB IRQs.
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NVIC_ClearPendingIRQ(USB_IRQ_IRQn);
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NVIC_SetPriority(USB_IRQ_IRQn, IRQ_PRI_USB);
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#if MICROPY_PY_CSI
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// Enable CSI clock and configure pins.
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alif_hal_csi_init(OMV_CSI_BASE);
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#endif
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}
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int alif_hal_i2c_init(uint32_t bus_id) {
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@ -364,14 +369,15 @@ int alif_hal_pdm_deinit(uint32_t pdm_id) {
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return 0;
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}
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int alif_hal_csi_init(CPI_Type *cpi, uint32_t mode) {
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if (mode == 0) {
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int alif_hal_csi_init(CPI_Type *cpi) {
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// Enable CPI clock.
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if (cpi == ((CPI_Type *) CPI_BASE)) {
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enable_cpi_periph_clk();
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} else {
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enable_lpcpi_periph_clk();
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}
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// Configure camera sensor interface pins
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// Configure CPI pins.
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omv_gpio_config(OMV_CSI_D0_PIN, OMV_GPIO_MODE_ALT, OMV_GPIO_PULL_NONE, OMV_GPIO_SPEED_HIGH, -1);
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omv_gpio_config(OMV_CSI_D1_PIN, OMV_GPIO_MODE_ALT, OMV_GPIO_PULL_NONE, OMV_GPIO_SPEED_HIGH, -1);
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omv_gpio_config(OMV_CSI_D2_PIN, OMV_GPIO_MODE_ALT, OMV_GPIO_PULL_NONE, OMV_GPIO_SPEED_HIGH, -1);
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@ -386,18 +392,6 @@ int alif_hal_csi_init(CPI_Type *cpi, uint32_t mode) {
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omv_gpio_config(OMV_CSI_PXCLK_PIN, OMV_GPIO_MODE_ALT, OMV_GPIO_PULL_NONE, OMV_GPIO_SPEED_HIGH, -1);
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omv_gpio_config(OMV_CSI_MXCLK_PIN, OMV_GPIO_MODE_ALT, OMV_GPIO_PULL_NONE, OMV_GPIO_SPEED_HIGH, -1);
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// Configure DCMI GPIOs
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#if defined(OMV_CSI_RESET_PIN)
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omv_gpio_config(OMV_CSI_RESET_PIN, OMV_GPIO_MODE_OUTPUT, OMV_GPIO_PULL_DOWN, OMV_GPIO_SPEED_LOW, -1);
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#endif
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#if defined(OMV_CSI_FSYNC_PIN)
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omv_gpio_config(OMV_CSI_FSYNC_PIN, OMV_GPIO_MODE_OUTPUT, OMV_GPIO_PULL_DOWN, OMV_GPIO_SPEED_LOW, -1);
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#endif
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#if defined(OMV_CSI_POWER_PIN)
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omv_gpio_config(OMV_CSI_POWER_PIN, OMV_GPIO_MODE_OUTPUT, OMV_GPIO_PULL_UP, OMV_GPIO_SPEED_LOW, -1);
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#endif
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NVIC_SetPriority(CAM_IRQ_IRQn, IRQ_PRI_CSI);
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return 0;
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}
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@ -40,5 +40,5 @@ int alif_hal_spi_init(uint32_t bus_id, bool nss_enable, uint32_t nss_pol);
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int alif_hal_spi_deinit(uint32_t bus_id);
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int alif_hal_pdm_init(uint32_t pdm_id);
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int alif_hal_pdm_deinit(uint32_t pdm_id);
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int alif_hal_csi_init(CPI_Type *cpi, uint32_t mode);
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int alif_hal_csi_init(CPI_Type *cpi);
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#endif //__ALIF_HAL_H__
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@ -71,6 +71,66 @@
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CAM_INTR_OUTFIFO_OVERRUN | \
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CAM_INTR_BRESP_ERR)
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static uint32_t omv_csi_get_fb_offset(omv_csi_t *csi);
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void CAM_IRQHandler(void) {
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uint32_t mask = 0;
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omv_csi_t *csi = omv_csi_get(-1);
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CPI_Type *cpi = csi->base;
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uint32_t status = cpi_get_interrupt_status(cpi);
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if (status & CAM_INTR_VSYNC) {
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mask |= CAM_INTR_VSYNC;
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}
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if (status & CAM_INTR_HSYNC) {
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mask |= CAM_INTR_HSYNC;
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}
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if (status & CAM_INTR_INFIFO_OVERRUN) {
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mask |= CAM_INTR_INFIFO_OVERRUN;
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omv_csi_abort(csi, true, true);
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}
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if (status & CAM_INTR_OUTFIFO_OVERRUN) {
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mask |= CAM_INTR_OUTFIFO_OVERRUN;
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omv_csi_abort(csi, true, true);
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}
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if (status & CAM_INTR_BRESP_ERR) {
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mask |= CAM_INTR_BRESP_ERR;
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omv_csi_abort(csi, true, true);
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}
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if (status & CAM_INTR_STOP) {
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mask |= CAM_INTR_STOP;
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cpi->CAM_CTRL = 0;
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if (!(status & CPI_ERROR_FLAGS)) {
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// Release the current framebuffer.
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framebuffer_get_tail(csi->fb, FB_NO_FLAGS);
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}
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// Get the current framebuffer (or new tail).
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vbuffer_t *buffer = framebuffer_get_tail(csi->fb, FB_PEEK);
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if (buffer != NULL) {
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cpi->CAM_CTRL = 0;
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cpi->CAM_CTRL = CAM_CTRL_SW_RESET;
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cpi->CAM_FRAME_ADDR = LocalToGlobal(buffer->data + omv_csi_get_fb_offset(csi));
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cpi_irq_handler_clear_intr_status(cpi, mask);
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cpi->CAM_CTRL = (CAM_CTRL_SNAPSHOT | CAM_CTRL_START | CAM_CTRL_FIFO_CLK_SEL);
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}
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if (csi->frame_cb.fun && !(status & CPI_ERROR_FLAGS)) {
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csi->frame_cb.fun(csi->frame_cb.arg);
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}
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}
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// Clear interrupts.
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cpi_irq_handler_clear_intr_status(cpi, mask);
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}
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int alif_csi_config(omv_csi_t *csi, omv_csi_config_t config) {
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if (config == OMV_CSI_CONFIG_INIT) {
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CPI_Type *cpi = csi->base;
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@ -235,13 +295,13 @@ int alif_csi_snapshot(omv_csi_t *csi, image_t *dst_image, uint32_t flags) {
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cpi_irq_handler_clear_intr_status(cpi, CPI_IRQ_FLAGS);
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cpi_enable_interrupt(cpi, CPI_IRQ_FLAGS);
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NVIC_ClearPendingIRQ(CAM_IRQ_IRQn);
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NVIC_SetPriority(CAM_IRQ_IRQn, IRQ_PRI_CSI);
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NVIC_EnableIRQ(CAM_IRQ_IRQn);
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// Reset CSI and start the capture.
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cpi->CAM_CTRL = 0;
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cpi->CAM_CTRL |= CAM_CTRL_SW_RESET;
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cpi->CAM_CTRL = CAM_CTRL_SW_RESET;
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cpi->CAM_CTRL = (CAM_CTRL_SNAPSHOT | CAM_CTRL_START | CAM_CTRL_FIFO_CLK_SEL);
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//printf("==== reconfigured ===\n");
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}
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// Let the camera know we want to trigger it now.
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@ -364,126 +424,11 @@ int alif_csi_snapshot(omv_csi_t *csi, image_t *dst_image, uint32_t flags) {
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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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static omv_i2c_t i2c;
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CPI_Type *base = ((CPI_Type *) CPI_BASE);
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alif_hal_csi_init(base, 0);
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#if defined(OMV_CSI_POWER_PIN)
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omv_gpio_write(OMV_CSI_POWER_PIN, 0);
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#endif
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#if defined(OMV_CSI_RESET_PIN)
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omv_gpio_write(OMV_CSI_RESET_PIN, 0);
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#endif
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// Initialize the CSIs using this driver's ops as defaults,
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// which can be overridden by sensor drivers during probe.
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for (size_t i=0; i<OMV_CSI_MAX_DEVICES; i++) {
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omv_csi_t *csi = &csi_all[i];
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memset(csi, 0, sizeof(omv_csi_t));
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csi->i2c = &i2c;
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csi->fb = framebuffer_get(-1);
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csi->base = base;
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csi->abort = alif_csi_abort;
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csi->config = alif_csi_config;
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csi->snapshot = alif_csi_snapshot;
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csi->color_palette = rainbow_table;
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}
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// Configure the CSI external clock.
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if (omv_csi_set_clk_frequency(OMV_CSI_CLK_FREQUENCY) != 0) {
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// Failed to initialize the csi clock.
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return OMV_CSI_ERROR_TIM_INIT_FAILED;
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}
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// Initialize the camera bus.
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omv_i2c_init(&i2c, OMV_CSI_I2C_ID, OMV_CSI_I2C_SPEED);
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// Detect and initialize the image csi.
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if ((init_ret = omv_csi_probe(&i2c)) != 0) {
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// csi probe/init failed.
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return init_ret;
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}
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// Configure the DCMI interface.
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for (size_t i=0; i<OMV_CSI_MAX_DEVICES; i++) {
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omv_csi_t *csi = &csi_all[i];
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if (omv_csi_config(csi, OMV_CSI_CONFIG_INIT) != 0) {
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return OMV_CSI_ERROR_CSI_INIT_FAILED;
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}
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csi->detected = true;
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}
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// Clear fb_enabled flag.
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JPEG_FB()->enabled = 0;
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int omv_csi_ops_init(omv_csi_t *csi) {
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csi->base = OMV_CSI_BASE;
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csi->abort = alif_csi_abort;
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csi->config = alif_csi_config;
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csi->snapshot = alif_csi_snapshot;
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return 0;
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}
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void CAM_IRQHandler(void) {
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uint32_t mask = 0;
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omv_csi_t *csi = omv_csi_get(-1);
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CPI_Type *cpi = csi->base;
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uint32_t status = cpi_get_interrupt_status(cpi);
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if (status & CAM_INTR_VSYNC) {
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mask |= CAM_INTR_VSYNC;
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}
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if (status & CAM_INTR_HSYNC) {
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mask |= CAM_INTR_HSYNC;
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}
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if (status & CAM_INTR_INFIFO_OVERRUN) {
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mask |= CAM_INTR_INFIFO_OVERRUN;
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omv_csi_abort(csi, true, true);
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printf("INFIFO_OVERRUN\n");
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}
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if (status & CAM_INTR_OUTFIFO_OVERRUN) {
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mask |= CAM_INTR_OUTFIFO_OVERRUN;
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omv_csi_abort(csi, true, true);
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printf("OUTFIFO_OVERRUN\n");
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}
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if (status & CAM_INTR_BRESP_ERR) {
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mask |= CAM_INTR_BRESP_ERR;
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omv_csi_abort(csi, true, true);
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printf("BRESP_ERR %lu\n", cpi->CAM_AXI_ERR_STAT);
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}
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if (status & CAM_INTR_STOP) {
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mask |= CAM_INTR_STOP;
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cpi->CAM_CTRL = 0;
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if (!(status & CPI_ERROR_FLAGS)) {
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// Release the current framebuffer.
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framebuffer_get_tail(csi->fb, FB_NO_FLAGS);
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}
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// Get the current framebuffer (or new tail).
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vbuffer_t *buffer = framebuffer_get_tail(csi->fb, FB_PEEK);
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if (buffer != NULL) {
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cpi->CAM_CTRL = 0;
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cpi->CAM_CTRL |= CAM_CTRL_SW_RESET;
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cpi->CAM_FRAME_ADDR = LocalToGlobal(buffer->data + omv_csi_get_fb_offset(csi));
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cpi_irq_handler_clear_intr_status(cpi, mask);
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cpi->CAM_CTRL = (CAM_CTRL_SNAPSHOT | CAM_CTRL_START | CAM_CTRL_FIFO_CLK_SEL);
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}
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if (csi->frame_cb.fun && !(status & CPI_ERROR_FLAGS)) {
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csi->frame_cb.fun(csi->frame_cb.arg);
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}
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}
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// Clear interrupts.
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cpi_irq_handler_clear_intr_status(cpi, mask);
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}
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#endif // MICROPY_PY_CSI
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