From: Sergio Aguirre <saaguirre@xxxxxx>
OMAP34XX: CAM: Add Sensors Support
This adds support in OMAP34xx SDP board file for Sensor and Lens
driver.
Signed-off-by: Sergio Aguirre <saaguirre@xxxxxx>
---
arch/arm/mach-omap2/board-3430sdp.c | 228 ++++++++++++++++++++++++++++++++++++
1 file changed, 228 insertions(+)
Index: linux-omap-2.6/arch/arm/mach-omap2/board-3430sdp.c
===================================================================
--- linux-omap-2.6.orig/arch/arm/mach-omap2/board-3430sdp.c 2008-08-25 11:00:18.000000000 -0500
+++ linux-omap-2.6/arch/arm/mach-omap2/board-3430sdp.c 2008-08-25 12:16:46.000000000 -0500
@@ -42,6 +42,19 @@
#include <mach/gpmc.h>
#include <linux/i2c/twl4030-rtc.h>
+#ifdef CONFIG_VIDEO_OMAP3
+#include <media/v4l2-int-device.h>
+#include <../drivers/media/video/omap34xxcam.h>
+#include <../drivers/media/video/isp/ispreg.h>
+#if defined(CONFIG_VIDEO_MT9P012) || defined(CONFIG_VIDEO_MT9P012_MODULE)
+#include <../drivers/media/video/mt9p012.h>
+#endif
+#endif
+
+#ifdef CONFIG_VIDEO_DW9710
+#include <../drivers/media/video/dw9710.h>
+#endif
+
#include <asm/io.h>
#include <asm/delay.h>
#include <mach/control.h>
@@ -266,6 +279,216 @@
},
};
+#ifdef CONFIG_VIDEO_DW9710
+static int dw9710_lens_power_set(enum v4l2_power power)
+{
+
+ return 0;
+}
+
+static int dw9710_lens_set_prv_data(void *priv)
+{
+ struct omap34xxcam_hw_config *hwc = priv;
+
+ hwc->dev_index = 0;
+ hwc->dev_minor = 0;
+ hwc->dev_type = OMAP34XXCAM_SLAVE_LENS;
+
+ return 0;
+}
+
+static struct dw9710_platform_data sdp3430_dw9710_platform_data = {
+ .power_set = dw9710_lens_power_set,
+ .priv_data_set = dw9710_lens_set_prv_data,
+};
+#endif
+
+#if defined(CONFIG_VIDEO_MT9P012) || defined(CONFIG_VIDEO_MT9P012_MODULE)
+static void __iomem *fpga_map_addr;
+
+static struct omap34xxcam_sensor_config cam_hwc = {
+ .sensor_isp = 0,
+ .xclk = OMAP34XXCAM_XCLK_A,
+};
+
+static void enable_fpga_vio_1v8(u8 enable)
+{
+ u16 reg_val;
+
+ fpga_map_addr = ioremap(DEBUG_BASE, 4096);
+ reg_val = readw(fpga_map_addr + REG_SDP3430_FPGA_GPIO_2);
+
+ /* Ensure that the SPR_GPIO1_3v3 is 0 - powered off.. 1 is on */
+ if (reg_val & FPGA_SPR_GPIO1_3v3) {
+ reg_val |= FPGA_SPR_GPIO1_3v3;
+ reg_val |= FPGA_GPIO6_DIR_CTRL; /* output mode */
+ writew(reg_val, fpga_map_addr + REG_SDP3430_FPGA_GPIO_2);
+ /* give a few milli sec to settle down
+ * Let the sensor also settle down.. if required..
+ */
+ if (enable)
+ mdelay(10);
+ }
+
+ if (enable) {
+ reg_val |= FPGA_SPR_GPIO1_3v3 | FPGA_GPIO6_DIR_CTRL;
+ writew(reg_val, fpga_map_addr + REG_SDP3430_FPGA_GPIO_2);
+ }
+ /* Vrise time for the voltage - should be less than 1 ms */
+ mdelay(1);
+}
+
+static int mt9p012_sensor_set_prv_data(void *priv)
+{
+ struct omap34xxcam_hw_config *hwc = priv;
+
+ hwc->u.sensor.xclk = cam_hwc.xclk;
+ hwc->u.sensor.sensor_isp = cam_hwc.sensor_isp;
+ hwc->dev_index = 0;
+ hwc->dev_minor = 0;
+ hwc->dev_type = OMAP34XXCAM_SLAVE_SENSOR;
+ return 0;
+}
+
+static struct isp_interface_config mt9p012_if_config = {
+ .ccdc_par_ser = ISP_PARLL,
+ .dataline_shift = 0x1,
+ .hsvs_syncdetect = ISPCTRL_SYNC_DETECT_VSRISE,
+ .vdint0_timing = 0x0,
+ .vdint1_timing = 0x0,
+ .strobe = 0x0,
+ .prestrobe = 0x0,
+ .shutter = 0x0,
+ .u.par.par_bridge = 0x0,
+ .u.par.par_clk_pol = 0x0,
+};
+
+static int mt9p012_sensor_power_set(enum v4l2_power power)
+{
+ switch (power) {
+ case V4L2_POWER_OFF:
+ /* Power Down Sequence */
+#ifdef CONFIG_TWL4030_CORE
+ twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+ VAUX_DEV_GRP_NONE, TWL4030_VAUX2_DEV_GRP);
+#else
+#error "no power companion board defined!"
+#endif
+ enable_fpga_vio_1v8(0);
+ omap_free_gpio(MT9P012_RESET_GPIO);
+ iounmap(fpga_map_addr);
+ omap_free_gpio(MT9P012_STANDBY_GPIO);
+ break;
+ case V4L2_POWER_ON:
+ /* Power Up Sequence */
+ isp_configure_interface(&mt9p012_if_config);
+
+ /* Request and configure gpio pins */
+ if (omap_request_gpio(MT9P012_STANDBY_GPIO) != 0) {
+ printk(KERN_WARNING "Could not request GPIO %d for "
+ "AF D88\n", MT9P012_STANDBY_GPIO);
+ return -EIO;
+ }
+
+ /* Request and configure gpio pins */
+ if (omap_request_gpio(MT9P012_RESET_GPIO) != 0)
+ return -EIO;
+
+ /* set to output mode */
+ omap_set_gpio_direction(MT9P012_STANDBY_GPIO, 0);
+ /* set to output mode */
+ omap_set_gpio_direction(MT9P012_RESET_GPIO, 0);
+
+ /* STANDBY_GPIO is active HIGH for set LOW to release */
+ omap_set_gpio_dataout(MT9P012_STANDBY_GPIO, 1);
+
+ /* nRESET is active LOW. set HIGH to release reset */
+ omap_set_gpio_dataout(MT9P012_RESET_GPIO, 1);
+
+ /* turn on digital power */
+ enable_fpga_vio_1v8(1);
+#ifdef CONFIG_TWL4030_CORE
+ /* turn on analog power */
+ twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+ VAUX_2_8_V, TWL4030_VAUX2_DEDICATED);
+ twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+ VAUX_DEV_GRP_P1, TWL4030_VAUX2_DEV_GRP);
+#else
+#error "no power companion board defined!"
+#endif
+
+ omap_set_gpio_dataout(MT9P012_STANDBY_GPIO, 0);
+
+ udelay(1000);
+
+ /* have to put sensor to reset to guarantee detection */
+ omap_set_gpio_dataout(MT9P012_RESET_GPIO, 0);
+
+ udelay(1500);
+
+ /* nRESET is active LOW. set HIGH to release reset */
+ omap_set_gpio_dataout(MT9P012_RESET_GPIO, 1);
+ /* give sensor sometime to get out of the reset. Datasheet says
+ 2400 xclks. At 6 MHz, 400 usec are enough */
+ udelay(300);
+ break;
+ case V4L2_POWER_STANDBY:
+ /* stand by */
+ omap_set_gpio_dataout(MT9P012_STANDBY_GPIO, 1);
+ break;
+ case V4L2_POWER_RESUME:
+ /* out of standby */
+ omap_set_gpio_dataout(MT9P012_STANDBY_GPIO, 0);
+ udelay(1000);
+ break;
+ }
+
+ return 0;
+}
+
+static struct v4l2_ifparm ifparm = {
+ .if_type = V4L2_IF_TYPE_BT656,
+ .u = {
+ .bt656 = {
+ .frame_start_on_rising_vs = 1,
+ .latch_clk_inv = 0,
+ .mode = V4L2_IF_TYPE_BT656_MODE_NOBT_10BIT,
+ .clock_min = MT9P012_XCLK_MIN,
+ .clock_max = MT9P012_XCLK_MAX,
+ },
+ },
+};
+
+static int mt9p012_ifparm(struct v4l2_ifparm *p)
+{
+ *p = ifparm;
+ return 0;
+}
+
+static struct mt9p012_platform_data sdp3430_mt9p012_platform_data = {
+ .power_set = mt9p012_sensor_power_set,
+ .priv_data_set = mt9p012_sensor_set_prv_data,
+ .default_regs = NULL,
+ .ifparm = mt9p012_ifparm,
+};
+
+
+static struct i2c_board_info __initdata sdp3430_i2c_board_info[] = {
+#ifdef CONFIG_VIDEO_DW9710
+ {
+ I2C_BOARD_INFO(DW9710_NAME, DW9710_AF_I2C_ADDR),
+ .platform_data = &sdp3430_dw9710_platform_data,
+ },
+#endif
+ {
+ I2C_BOARD_INFO("mt9p012", MT9P012_I2C_ADDR),
+ .platform_data = &sdp3430_mt9p012_platform_data,
+ },
+};
+
+#endif
+
+
static struct platform_device sdp3430_lcd_device = {
.name = "sdp2430_lcd",
.id = -1,
@@ -344,7 +567,12 @@
static int __init omap3430_i2c_init(void)
{
omap_register_i2c_bus(1, 2600, NULL, 0);
+#if defined(CONFIG_VIDEO_MT9P012) || defined(CONFIG_VIDEO_MT9P012_MODULE)
+ omap_register_i2c_bus(2, 400, sdp3430_i2c_board_info,
+ ARRAY_SIZE(sdp3430_i2c_board_info));
+#else
omap_register_i2c_bus(2, 400, NULL, 0);
+#endif
omap_register_i2c_bus(3, 400, NULL, 0);
return 0;
}
--
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