>From 4fa46d05b1ecb83ccf2dd1c158ecba70dafc5888 Mon Sep 17 00:00:00 2001
From: Sergio Aguirre <saaguirre@xxxxxx>
Date: Thu, 11 Dec 2008 13:42:51 -0600
Subject: [PATCH] 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 | 300 ++++++++++++++++++++++++++++++++++-
1 files changed, 299 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index ade186b..59a2765 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -23,6 +23,7 @@
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/i2c/twl4030.h>
+#include <linux/mm.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
@@ -40,6 +41,20 @@
#include <mach/dma.h>
#include <mach/gpmc.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 <media/mt9p012.h>
+static enum v4l2_power mt9p012_previous_power = V4L2_POWER_OFF;
+#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>
@@ -238,6 +253,273 @@ static struct spi_board_info sdp3430_spi_board_info[] __initdata = {
},
};
+#ifdef CONFIG_VIDEO_OMAP3
+static void __iomem *fpga_map_addr;
+
+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);
+}
+#endif
+
+#ifdef CONFIG_VIDEO_DW9710
+static int dw9710_lens_power_set(enum v4l2_power power)
+{
+
+ /* The power change depends on MT9P012 powerup, so if we request a
+ * power state different from sensor, we should return error
+ */
+ if ((mt9p012_previous_power != V4L2_POWER_OFF) &&
+ (power != mt9p012_previous_power))
+ return -EIO;
+
+ 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:
+ /* Request and configure gpio pins */
+ if (omap_request_gpio(MT9P012_STANDBY_GPIO) != 0) {
+ printk(KERN_WARNING "Could not request GPIO %d"
+ " for MT9P012\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 */
+ gpio_direction_output(MT9P012_STANDBY_GPIO, true);
+ /* set to output mode */
+ gpio_direction_output(MT9P012_RESET_GPIO, true);
+
+ /* STANDBY_GPIO is active HIGH for set LOW to release */
+ gpio_set_value(MT9P012_STANDBY_GPIO, 1);
+
+ /* nRESET is active LOW. set HIGH to release reset */
+ gpio_set_value(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
+ /* out of standby */
+ gpio_set_value(MT9P012_STANDBY_GPIO, 0);
+ udelay(1000);
+
+ /* have to put sensor to reset to guarantee detection */
+ gpio_set_value(MT9P012_RESET_GPIO, 0);
+
+ udelay(1500);
+
+ /* nRESET is active LOW. set HIGH to release reset */
+ gpio_set_value(MT9P012_RESET_GPIO, 1);
+ /* give sensor sometime to get out of the reset.
+ * Datasheet says 2400 xclks. At 6 MHz, 400 usec is
+ * enough
+ */
+ udelay(300);
+ break;
+ case V4L2_POWER_STANDBY:
+ break;
+ }
+ 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 struct omap34xxcam_sensor_config cam_hwc = {
+ .sensor_isp = 0,
+ .xclk = OMAP34XXCAM_XCLK_A,
+ .capture_mem = PAGE_ALIGN(2592 * 1944 * 2) * 4,
+};
+
+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->u.sensor.capture_mem = cam_hwc.capture_mem;
+ 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,
+ .prev_sph = 2,
+ .prev_slv = 0,
+ .wenlog = ISPCCDC_CFG_WENLOG_OR,
+ .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:
+ if (mt9p012_previous_power == V4L2_POWER_OFF) {
+ /* 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 MT9P012\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 */
+ gpio_direction_output(MT9P012_STANDBY_GPIO, true);
+ /* set to output mode */
+ gpio_direction_output(MT9P012_RESET_GPIO, true);
+
+ /* STANDBY_GPIO is active HIGH for set LOW to release */
+ gpio_set_value(MT9P012_STANDBY_GPIO, 1);
+
+ /* nRESET is active LOW. set HIGH to release reset */
+ gpio_set_value(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
+ }
+
+ /* out of standby */
+ gpio_set_value(MT9P012_STANDBY_GPIO, 0);
+ udelay(1000);
+
+ if (mt9p012_previous_power == V4L2_POWER_OFF) {
+ /* have to put sensor to reset to guarantee detection */
+ gpio_set_value(MT9P012_RESET_GPIO, 0);
+
+ udelay(1500);
+
+ /* nRESET is active LOW. set HIGH to release reset */
+ gpio_set_value(MT9P012_RESET_GPIO, 1);
+ /* give sensor sometime to get out of the reset.
+ * Datasheet says 2400 xclks. At 6 MHz, 400 usec is
+ * enough
+ */
+ udelay(300);
+ }
+ break;
+ case V4L2_POWER_STANDBY:
+ /* stand by */
+ gpio_set_value(MT9P012_STANDBY_GPIO, 1);
+ break;
+ }
+ /* Save powerstate to know what was before calling POWER_ON. */
+ mt9p012_previous_power = power;
+ return 0;
+}
+
+static u32 mt9p012_sensor_set_xclk(u32 xclkfreq)
+{
+ return isp_set_xclk(xclkfreq, MT9P012_USE_XCLKA);
+}
+
+static struct mt9p012_platform_data sdp3430_mt9p012_platform_data = {
+ .power_set = mt9p012_sensor_power_set,
+ .priv_data_set = mt9p012_sensor_set_prv_data,
+ .set_xclk = mt9p012_sensor_set_xclk,
+};
+
+#endif
+
+
static struct platform_device sdp3430_lcd_device = {
.name = "sdp2430_lcd",
.id = -1,
@@ -434,11 +716,27 @@ static struct i2c_board_info __initdata sdp3430_i2c_boardinfo[] = {
},
};
+static struct i2c_board_info __initdata sdp3430_i2c_boardinfo_2[] = {
+#if defined(CONFIG_VIDEO_MT9P012) || defined(CONFIG_VIDEO_MT9P012_MODULE)
+ {
+ I2C_BOARD_INFO("mt9p012", MT9P012_I2C_ADDR),
+ .platform_data = &sdp3430_mt9p012_platform_data,
+ },
+#ifdef CONFIG_VIDEO_DW9710
+ {
+ I2C_BOARD_INFO(DW9710_NAME, DW9710_AF_I2C_ADDR),
+ .platform_data = &sdp3430_dw9710_platform_data,
+ },
+#endif
+#endif
+};
+
static int __init omap3430_i2c_init(void)
{
omap_register_i2c_bus(1, 2600, sdp3430_i2c_boardinfo,
ARRAY_SIZE(sdp3430_i2c_boardinfo));
- omap_register_i2c_bus(2, 400, NULL, 0);
+ omap_register_i2c_bus(2, 400, sdp3430_i2c_boardinfo_2,
+ ARRAY_SIZE(sdp3430_i2c_boardinfo_2));
omap_register_i2c_bus(3, 400, NULL, 0);
return 0;
}
--
1.5.6.5
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
