diff options
Diffstat (limited to 'arch/arm/mach-mx3')
| -rw-r--r-- | arch/arm/mach-mx3/mx31moboard-marxbot.c | 86 | ||||
| -rw-r--r-- | arch/arm/mach-mx3/mx31moboard.c | 36 |
2 files changed, 121 insertions, 1 deletions
diff --git a/arch/arm/mach-mx3/mx31moboard-marxbot.c b/arch/arm/mach-mx3/mx31moboard-marxbot.c index 6b06faf0cf3..e4e344eceb7 100644 --- a/arch/arm/mach-mx3/mx31moboard-marxbot.c +++ b/arch/arm/mach-mx3/mx31moboard-marxbot.c @@ -16,9 +16,11 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include <linux/delay.h> #include <linux/gpio.h> #include <linux/init.h> #include <linux/interrupt.h> +#include <linux/i2c.h> #include <linux/platform_device.h> #include <linux/types.h> @@ -28,6 +30,8 @@ #include <mach/iomux-mx3.h> #include <mach/mmc.h> +#include <media/soc_camera.h> + #include "devices.h" static unsigned int marxbot_pins[] = { @@ -37,7 +41,6 @@ static unsigned int marxbot_pins[] = { MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD, MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29, /* CSI */ - MX31_PIN_CSI_D4__CSI_D4, MX31_PIN_CSI_D5__CSI_D5, MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7, MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9, MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11, @@ -45,6 +48,7 @@ static unsigned int marxbot_pins[] = { MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15, MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK, MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC, + MX31_PIN_CSI_D4__GPIO3_4, MX31_PIN_CSI_D5__GPIO3_5, MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1, MX31_PIN_TXD2__GPIO1_28, /* dsPIC resets */ @@ -122,6 +126,83 @@ static void dspics_resets_init(void) } } +#define TURRETCAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1) +#define BASECAM_POWER IOMUX_TO_GPIO(MX31_PIN_CSI_D5) +#define TURRETCAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0) +#define BASECAM_RST_B IOMUX_TO_GPIO(MX31_PIN_CSI_D4) +#define CAM_CHOICE IOMUX_TO_GPIO(MX31_PIN_TXD2) + +static int marxbot_basecam_power(struct device *dev, int on) +{ + gpio_set_value(BASECAM_POWER, !on); + return 0; +} + +static int marxbot_basecam_reset(struct device *dev) +{ + gpio_set_value(BASECAM_RST_B, 0); + udelay(100); + gpio_set_value(BASECAM_RST_B, 1); + return 0; +} + +static struct i2c_board_info marxbot_i2c_devices[] = { + { + I2C_BOARD_INFO("mt9t031", 0x5d), + }, +}; + +static struct soc_camera_link base_iclink = { + .bus_id = 0, /* Must match with the camera ID */ + .power = marxbot_basecam_power, + .reset = marxbot_basecam_reset, + .board_info = &marxbot_i2c_devices[0], + .i2c_adapter_id = 0, + .module_name = "mt9t031", +}; + +static struct platform_device marxbot_camera[] = { + { + .name = "soc-camera-pdrv", + .id = 0, + .dev = { + .platform_data = &base_iclink, + }, + }, +}; + +static struct platform_device *marxbot_cameras[] __initdata = { + &marxbot_camera[0], +}; + +static int __init marxbot_cam_init(void) +{ + int ret = gpio_request(CAM_CHOICE, "cam-choice"); + if (ret) + return ret; + gpio_direction_output(CAM_CHOICE, 1); + + ret = gpio_request(BASECAM_RST_B, "basecam-reset"); + if (ret) + return ret; + gpio_direction_output(BASECAM_RST_B, 1); + ret = gpio_request(BASECAM_POWER, "basecam-standby"); + if (ret) + return ret; + gpio_direction_output(BASECAM_POWER, 0); + + ret = gpio_request(TURRETCAM_RST_B, "turretcam-reset"); + if (ret) + return ret; + gpio_direction_output(TURRETCAM_RST_B, 1); + ret = gpio_request(TURRETCAM_POWER, "turretcam-standby"); + if (ret) + return ret; + gpio_direction_output(TURRETCAM_POWER, 0); + + return 0; +} + /* * system init for baseboard usage. Will be called by mx31moboard init. */ @@ -136,6 +217,9 @@ void __init mx31moboard_marxbot_init(void) mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata); + marxbot_cam_init(); + platform_add_devices(marxbot_cameras, ARRAY_SIZE(marxbot_cameras)); + /* battery present pin */ gpio_request(IOMUX_TO_GPIO(MX31_PIN_LCS0), "bat-present"); gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_LCS0)); diff --git a/arch/arm/mach-mx3/mx31moboard.c b/arch/arm/mach-mx3/mx31moboard.c index 2f95dcd805c..b167f131f7c 100644 --- a/arch/arm/mach-mx3/mx31moboard.c +++ b/arch/arm/mach-mx3/mx31moboard.c @@ -17,6 +17,7 @@ */ #include <linux/delay.h> +#include <linux/dma-mapping.h> #include <linux/fsl_devices.h> #include <linux/gpio.h> #include <linux/init.h> @@ -403,6 +404,39 @@ static struct platform_device *devices[] __initdata = { &mx31moboard_leds_device, }; +static struct mx3_camera_pdata camera_pdata = { + .dma_dev = &mx3_ipu.dev, + .flags = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10, + .mclk_10khz = 4800, +}; + +#define CAMERA_BUF_SIZE (4*1024*1024) + +static int __init mx31moboard_cam_alloc_dma(const size_t buf_size) +{ + dma_addr_t dma_handle; + void *buf; + int dma; + + if (buf_size < 2 * 1024 * 1024) + return -EINVAL; + + buf = dma_alloc_coherent(NULL, buf_size, &dma_handle, GFP_KERNEL); + if (!buf) { + pr_err("%s: cannot allocate camera buffer-memory\n", __func__); + return -ENOMEM; + } + + memset(buf, 0, buf_size); + + dma = dma_declare_coherent_memory(&mx3_camera.dev, + dma_handle, dma_handle, buf_size, + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); + + /* The way we call dma_declare_coherent_memory only a malloc can fail */ + return dma & DMA_MEMORY_MAP ? 0 : -ENOMEM; +} + static int mx31moboard_baseboard; core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444); @@ -436,6 +470,8 @@ static void __init mxc_board_init(void) mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata); mxc_register_device(&mx3_ipu, &mx3_ipu_data); + if (!mx31moboard_cam_alloc_dma(CAMERA_BUF_SIZE)) + mxc_register_device(&mx3_camera, &camera_pdata); usb_xcvr_reset(); |