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linux-omap 2.6.39: add sensor driver for aptina 5MP and 1GHz hack for beagle

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Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
This commit is contained in:
Koen Kooi
2011-05-25 09:32:34 +02:00
parent cf911bc432
commit dd301f06bd
8 changed files with 1065 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files
recipes-kernel/linux/linux-omap-2.6.39/beagle/0001-OMAP3-beagle-add-support-for-beagleboard-xM-revision.patch
+20 -18
View File
@@ -1,17 +1,17 @@
From 8fc22425fa39908fd4a9a0f1954b66fecaf2058a Mon Sep 17 00:00:00 2001
From 2dd4bf287ad066e3d9e82c239782fb649c6f7fe7 Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Fri, 20 May 2011 12:48:37 +0200
Subject: [PATCH 1/3] OMAP3: beagle: add support for beagleboard xM revision C
Subject: [PATCH 1/5] OMAP3: beagle: add support for beagleboard xM revision C
The USB enable GPIO has been inverted and the USER button moved.
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
arch/arm/mach-omap2/board-omap3beagle.c | 32 +++++++++++++++++++++++-------
1 files changed, 24 insertions(+), 8 deletions(-)
arch/arm/mach-omap2/board-omap3beagle.c | 34 +++++++++++++++++++++++-------
1 files changed, 26 insertions(+), 8 deletions(-)
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 2de4b02..1eb1e8e 100644
index 2de4b02..77bafa8 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -62,7 +62,9 @@
@@ -33,7 +33,7 @@ index 2de4b02..1eb1e8e 100644
};
static u8 omap3_beagle_version;
@@ -124,9 +127,17 @@ static void __init omap3_beagle_init_rev(void)
@@ -124,9 +127,18 @@ static void __init omap3_beagle_init_rev(void)
printk(KERN_INFO "OMAP3 Beagle Rev: xM\n");
omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
break;
@@ -48,57 +48,59 @@ index 2de4b02..1eb1e8e 100644
default:
- printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
- omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
+ printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd, assuming xM C or newer\n", beagle_rev);
+ printk(KERN_INFO
+ "OMAP3 Beagle Rev: unknown %hd, assuming xM C or newer\n", beagle_rev);
+ omap3_beagle_version = OMAP3BEAGLE_BOARD_XMC;
}
return;
@@ -278,7 +289,7 @@ static int beagle_twl_gpio_setup(struct device *dev,
@@ -278,7 +290,7 @@ static int beagle_twl_gpio_setup(struct device *dev,
{
int r;
- if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
+ if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM || omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XMC) {
+ if (cpu_is_omap3630()) {
mmc[0].gpio_wp = -EINVAL;
} else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
(omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4)) {
@@ -298,7 +309,7 @@ static int beagle_twl_gpio_setup(struct device *dev,
@@ -298,7 +310,8 @@ static int beagle_twl_gpio_setup(struct device *dev,
/* REVISIT: need ehci-omap hooks for external VBUS
* power switch and overcurrent detect
*/
- if (omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XM) {
+ if (omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XM && omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XMC) {
+ if (omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XM
+ && omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XMC) {
r = gpio_request(gpio + 1, "EHCI_nOC");
if (!r) {
r = gpio_direction_input(gpio + 1);
@@ -320,7 +331,7 @@ static int beagle_twl_gpio_setup(struct device *dev,
@@ -320,7 +333,7 @@ static int beagle_twl_gpio_setup(struct device *dev,
gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
/* DVI reset GPIO is different between beagle revisions */
- if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
+ if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM || omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XMC)
+ if (cpu_is_omap3630())
beagle_dvi_device.reset_gpio = 129;
else
beagle_dvi_device.reset_gpio = 170;
@@ -334,7 +345,7 @@ static int beagle_twl_gpio_setup(struct device *dev,
@@ -334,7 +347,7 @@ static int beagle_twl_gpio_setup(struct device *dev,
* P7/P8 revisions(prototype): Camera EN
* A2+ revisions (production): LDO (supplies DVI, serial, led blocks)
*/
- if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
+ if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM || omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XMC) {
+ if (cpu_is_omap3630()) {
r = gpio_request(gpio + 1, "nDVI_PWR_EN");
if (!r) {
r = gpio_direction_output(gpio + 1, 0);
@@ -625,7 +636,7 @@ static void __init beagle_opp_init(void)
@@ -625,7 +638,7 @@ static void __init beagle_opp_init(void)
}
/* Custom OPP enabled for XM */
- if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
+ if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM || omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XMC) {
+ if (cpu_is_omap3630()) {
struct omap_hwmod *mh = omap_hwmod_lookup("mpu");
struct omap_hwmod *dh = omap_hwmod_lookup("iva");
struct device *dev;
@@ -665,6 +676,11 @@ static void __init omap3_beagle_init(void)
@@ -665,6 +678,11 @@ static void __init omap3_beagle_init(void)
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
omap3_beagle_init_rev();
omap3_beagle_i2c_init();
recipes-kernel/linux/linux-omap-2.6.39/beagle/0002-OMAP3-beagle-add-support-for-expansionboards.patch
+11 -11
View File
@@ -1,7 +1,7 @@
From 4757e98441d91244c5b1429bdc3d8771e78bb478 Mon Sep 17 00:00:00 2001
From 258a21a495a9ba2238081cd473b4796cd61a60e7 Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Fri, 20 May 2011 13:06:24 +0200
Subject: [PATCH 2/3] OMAP3: beagle: add support for expansionboards
Subject: [PATCH 2/5] OMAP3: beagle: add support for expansionboards
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
@@ -9,7 +9,7 @@ Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
1 files changed, 269 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 1eb1e8e..70ed6f3 100644
index 77bafa8..db285e1 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -21,6 +21,7 @@
@@ -20,7 +20,7 @@ index 1eb1e8e..70ed6f3 100644
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/opp.h>
@@ -153,6 +154,167 @@ fail0:
@@ -154,6 +155,167 @@ fail0:
return;
}
@@ -188,7 +188,7 @@ index 1eb1e8e..70ed6f3 100644
static struct mtd_partition omap3beagle_nand_partitions[] = {
/* All the partition sizes are listed in terms of NAND block size */
{
@@ -271,6 +433,12 @@ static struct omap2_hsmmc_info mmc[] = {
@@ -272,6 +434,12 @@ static struct omap2_hsmmc_info mmc[] = {
.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
.gpio_wp = 29,
},
@@ -201,7 +201,7 @@ index 1eb1e8e..70ed6f3 100644
{} /* Terminator */
};
@@ -300,11 +468,25 @@ static int beagle_twl_gpio_setup(struct device *dev,
@@ -301,11 +469,25 @@ static int beagle_twl_gpio_setup(struct device *dev,
}
/* gpio + 0 is "mmc0_cd" (input/IRQ) */
mmc[0].gpio_cd = gpio + 0;
@@ -227,7 +227,7 @@ index 1eb1e8e..70ed6f3 100644
/* REVISIT: need ehci-omap hooks for external VBUS
* power switch and overcurrent detect
@@ -464,7 +646,7 @@ static struct twl4030_platform_data beagle_twldata = {
@@ -466,7 +648,7 @@ static struct twl4030_platform_data beagle_twldata = {
.vpll2 = &beagle_vpll2,
};
@@ -236,7 +236,7 @@ index 1eb1e8e..70ed6f3 100644
{
I2C_BOARD_INFO("twl4030", 0x48),
.flags = I2C_CLIENT_WAKE,
@@ -479,10 +661,24 @@ static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
@@ -481,10 +663,24 @@ static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
},
};
@@ -263,7 +263,7 @@ index 1eb1e8e..70ed6f3 100644
/* Bus 3 is attached to the DVI port where devices like the pico DLP
* projector don't work reliably with 400kHz */
omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
@@ -625,6 +821,15 @@ static struct omap_musb_board_data musb_board_data = {
@@ -627,6 +823,15 @@ static struct omap_musb_board_data musb_board_data = {
.power = 100,
};
@@ -279,7 +279,7 @@ index 1eb1e8e..70ed6f3 100644
static void __init beagle_opp_init(void)
{
int r = 0;
@@ -691,6 +896,65 @@ static void __init omap3_beagle_init(void)
@@ -693,6 +898,65 @@ static void __init omap3_beagle_init(void)
/* REVISIT leave DVI powered down until it's needed ... */
gpio_direction_output(170, true);
@@ -345,7 +345,7 @@ index 1eb1e8e..70ed6f3 100644
usb_musb_init(&musb_board_data);
usbhs_init(&usbhs_bdata);
omap3beagle_flash_init();
@@ -703,6 +967,8 @@ static void __init omap3_beagle_init(void)
@@ -705,6 +969,8 @@ static void __init omap3_beagle_init(void)
beagle_opp_init();
}
recipes-kernel/linux/linux-omap-2.6.39/beagle/0003-OMAP3-beagle-add-MADC-support.patch
+5 -5
View File
@@ -1,7 +1,7 @@
From cfa62e807901f04bfd0e9f38a283ac974ff3d888 Mon Sep 17 00:00:00 2001
From b6deb9a9c3a0c8b9afc981cbca20ff73fa7a8d8c Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Sat, 21 May 2011 16:18:30 +0200
Subject: [PATCH 3/3] OMAP3: beagle: add MADC support
Subject: [PATCH 3/5] OMAP3: beagle: add MADC support
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
@@ -9,10 +9,10 @@ Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 70ed6f3..aa7849a 100644
index db285e1..da4ba50 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -632,6 +632,10 @@ static struct twl4030_codec_data beagle_codec_data = {
@@ -634,6 +634,10 @@ static struct twl4030_codec_data beagle_codec_data = {
.audio = &beagle_audio_data,
};
@@ -23,7 +23,7 @@ index 70ed6f3..aa7849a 100644
static struct twl4030_platform_data beagle_twldata = {
.irq_base = TWL4030_IRQ_BASE,
.irq_end = TWL4030_IRQ_END,
@@ -640,6 +644,7 @@ static struct twl4030_platform_data beagle_twldata = {
@@ -642,6 +646,7 @@ static struct twl4030_platform_data beagle_twldata = {
.usb = &beagle_usb_data,
.gpio = &beagle_gpio_data,
.codec = &beagle_codec_data,
recipes-kernel/linux/linux-omap-2.6.39/beagle/0004-OMAP3-beagle-add-regulators-for-camera-interface.patch
+71
View File
@@ -0,0 +1,71 @@
From 0ba8b335b9dd023784ef493b524d6335bfcd453a Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Wed, 25 May 2011 08:56:06 +0200
Subject: [PATCH 4/5] OMAP3: beagle: add regulators for camera interface
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
arch/arm/mach-omap2/board-omap3beagle.c | 40 +++++++++++++++++++++++++++++++
1 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index da4ba50..52ea11a 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -453,6 +453,44 @@ static struct regulator_consumer_supply beagle_vsim_supply = {
static struct gpio_led gpio_leds[];
+static struct regulator_consumer_supply beagle_vaux3_supply = {
+ .supply = "cam_1v8",
+};
+
+static struct regulator_consumer_supply beagle_vaux4_supply = {
+ .supply = "cam_2v8",
+};
+
+/* VAUX3 for CAM_1V8 */
+static struct regulator_init_data beagle_vaux3 = {
+ .constraints = {
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .apply_uV = true,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL
+ | REGULATOR_MODE_STANDBY,
+ .valid_ops_mask = REGULATOR_CHANGE_MODE
+ | REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = 1,
+ .consumer_supplies = &beagle_vaux3_supply,
+};
+
+/* VAUX4 for CAM_2V8 */
+static struct regulator_init_data beagle_vaux4 = {
+ .constraints = {
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .apply_uV = true,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL
+ | REGULATOR_MODE_STANDBY,
+ .valid_ops_mask = REGULATOR_CHANGE_MODE
+ | REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = 1,
+ .consumer_supplies = &beagle_vaux4_supply,
+};
+
static int beagle_twl_gpio_setup(struct device *dev,
unsigned gpio, unsigned ngpio)
{
@@ -651,6 +689,8 @@ static struct twl4030_platform_data beagle_twldata = {
.vsim = &beagle_vsim,
.vdac = &beagle_vdac,
.vpll2 = &beagle_vpll2,
+ .vaux3 = &beagle_vaux3,
+ .vaux4 = &beagle_vaux4,
};
static struct i2c_board_info __initdata beagle_i2c1_boardinfo[] = {
--
1.6.6.1
recipes-kernel/linux/linux-omap-2.6.39/beagle/0005-OMAP3-beagle-HACK-add-in-1GHz-OPP.patch
+31
View File
@@ -0,0 +1,31 @@
From 5b0f364b7e017d422b01c0e3297d0b68119f95f0 Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Wed, 25 May 2011 08:57:40 +0200
Subject: [PATCH 5/5] OMAP3: beagle: HACK! add in 1GHz OPP
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
arch/arm/mach-omap2/board-omap3beagle.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 52ea11a..cf95173 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -901,11 +901,13 @@ static void __init beagle_opp_init(void)
/* Enable MPU 1GHz and lower opps */
dev = &mh->od->pdev.dev;
r = opp_enable(dev, 800000000);
+ r |= opp_enable(dev, 1000000000);
/* TODO: MPU 1GHz needs SR and ABB */
/* Enable IVA 800MHz and lower opps */
dev = &dh->od->pdev.dev;
r |= opp_enable(dev, 660000000);
+ r |= opp_enable(dev, 800000000);
/* TODO: DSP 800MHz needs SR and ABB */
if (r) {
pr_err("%s: failed to enable higher opp %d\n",
--
1.6.6.1
recipes-kernel/linux/linux-omap-2.6.39/beagleboard/defconfig
+5 -4
View File
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Linux/arm 2.6.39 Kernel Configuration
# Mon May 23 13:05:03 2011
# Wed May 25 09:25:56 2011
#
CONFIG_ARM=y
CONFIG_HAVE_PWM=y
@@ -460,13 +460,13 @@ CONFIG_AUTO_ZRELADDR=y
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
CONFIG_CPU_FREQ_DEBUG=y
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_STAT_DETAILS=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_HOTPLUG is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
@@ -2041,6 +2041,7 @@ CONFIG_VIDEO_ADV7180=m
# CONFIG_VIDEO_BT866 is not set
# CONFIG_VIDEO_KS0127 is not set
CONFIG_VIDEO_OV7670=m
CONFIG_VIDEO_MT9P031=m
CONFIG_VIDEO_MT9V011=m
# CONFIG_VIDEO_TCM825X is not set
# CONFIG_VIDEO_SAA7110 is not set
recipes-kernel/linux/linux-omap-2.6.39/camera/0001-Add-mt9p031-sensor-support.patch
+917
View File
@@ -0,0 +1,917 @@
From 69f7b0ee14f046e469d616611ee87836e04219b4 Mon Sep 17 00:00:00 2001
From: Javier Martin <javier.martin@vista-silicon.com>
Date: Tue, 24 May 2011 16:30:43 +0200
Subject: [PATCH] Add mt9p031 sensor support.
This RFC includes a power management implementation that causes
the sensor to show images with horizontal artifacts (usually
monochrome lines that appear on the image randomly).
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
drivers/media/video/Kconfig | 7 +
drivers/media/video/Makefile | 1 +
drivers/media/video/mt9p031.c | 841 +++++++++++++++++++++++++++++++++++++++++
include/media/mt9p031.h | 11 +
4 files changed, 860 insertions(+), 0 deletions(-)
create mode 100644 drivers/media/video/mt9p031.c
create mode 100644 include/media/mt9p031.h
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index 00f51dd..8a596cc 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -329,6 +329,13 @@ config VIDEO_OV7670
OV7670 VGA camera. It currently only works with the M88ALP01
controller.
+config VIDEO_MT9P031
+ tristate "Aptina MT9P031 support"
+ depends on I2C && VIDEO_V4L2
+ ---help---
+ This is a Video4Linux2 sensor-level driver for the Aptina
+ (Micron) mt9p031 5 Mpixel camera.
+
config VIDEO_MT9V011
tristate "Micron mt9v011 sensor support"
depends on I2C && VIDEO_V4L2
diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile
index ace5d8b..912b29b 100644
--- a/drivers/media/video/Makefile
+++ b/drivers/media/video/Makefile
@@ -65,6 +65,7 @@ obj-$(CONFIG_VIDEO_UPD64083) += upd64083.o
obj-$(CONFIG_VIDEO_OV7670) += ov7670.o
obj-$(CONFIG_VIDEO_TCM825X) += tcm825x.o
obj-$(CONFIG_VIDEO_TVEEPROM) += tveeprom.o
+obj-$(CONFIG_VIDEO_MT9P031) += mt9p031.o
obj-$(CONFIG_VIDEO_MT9V011) += mt9v011.o
obj-$(CONFIG_VIDEO_SR030PC30) += sr030pc30.o
obj-$(CONFIG_VIDEO_NOON010PC30) += noon010pc30.o
diff --git a/drivers/media/video/mt9p031.c b/drivers/media/video/mt9p031.c
new file mode 100644
index 0000000..04d8812
--- /dev/null
+++ b/drivers/media/video/mt9p031.c
@@ -0,0 +1,841 @@
+/*
+ * Driver for MT9P031 CMOS Image Sensor from Aptina
+ *
+ * Copyright (C) 2011, Javier Martin <javier.martin@vista-silicon.com>
+ *
+ * Copyright (C) 2011, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * Based on the MT9V032 driver and Bastian Hecht's code.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <linux/log2.h>
+#include <linux/pm.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <media/v4l2-subdev.h>
+#include <linux/videodev2.h>
+
+#include <media/mt9p031.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-subdev.h>
+#include <media/v4l2-device.h>
+
+#define MT9P031_PIXCLK_FREQ 54000000
+
+/* mt9p031 selected register addresses */
+#define MT9P031_CHIP_VERSION 0x00
+#define MT9P031_CHIP_VERSION_VALUE 0x1801
+#define MT9P031_ROW_START 0x01
+#define MT9P031_ROW_START_DEF 54
+#define MT9P031_COLUMN_START 0x02
+#define MT9P031_COLUMN_START_DEF 16
+#define MT9P031_WINDOW_HEIGHT 0x03
+#define MT9P031_WINDOW_WIDTH 0x04
+#define MT9P031_H_BLANKING 0x05
+#define MT9P031_H_BLANKING_VALUE 0
+#define MT9P031_V_BLANKING 0x06
+#define MT9P031_V_BLANKING_VALUE 25
+#define MT9P031_OUTPUT_CONTROL 0x07
+#define MT9P031_OUTPUT_CONTROL_CEN 2
+#define MT9P031_OUTPUT_CONTROL_SYN 1
+#define MT9P031_SHUTTER_WIDTH_UPPER 0x08
+#define MT9P031_SHUTTER_WIDTH 0x09
+#define MT9P031_PIXEL_CLOCK_CONTROL 0x0a
+#define MT9P031_FRAME_RESTART 0x0b
+#define MT9P031_SHUTTER_DELAY 0x0c
+#define MT9P031_RST 0x0d
+#define MT9P031_RST_ENABLE 1
+#define MT9P031_RST_DISABLE 0
+#define MT9P031_READ_MODE_1 0x1e
+#define MT9P031_READ_MODE_2 0x20
+#define MT9P031_READ_MODE_2_ROW_MIR 0x8000
+#define MT9P031_READ_MODE_2_COL_MIR 0x4000
+#define MT9P031_ROW_ADDRESS_MODE 0x22
+#define MT9P031_COLUMN_ADDRESS_MODE 0x23
+#define MT9P031_GLOBAL_GAIN 0x35
+
+#define MT9P031_WINDOW_HEIGHT_MAX 1944
+#define MT9P031_WINDOW_WIDTH_MAX 2592
+#define MT9P031_WINDOW_HEIGHT_MIN 2
+#define MT9P031_WINDOW_WIDTH_MIN 18
+
+struct mt9p031 {
+ struct v4l2_subdev subdev;
+ struct media_pad pad;
+ struct v4l2_rect rect; /* Sensor window */
+ struct v4l2_mbus_framefmt format;
+ struct mt9p031_platform_data *pdata;
+ struct mutex power_lock; /* lock to protect power_count */
+ int power_count;
+ u16 xskip;
+ u16 yskip;
+ /* cache register values */
+ u16 output_control;
+ u16 h_blanking;
+ u16 v_blanking;
+ u16 column_address_mode;
+ u16 row_address_mode;
+ u16 column_start;
+ u16 row_start;
+ u16 window_width;
+ u16 window_height;
+ struct regulator *reg_1v8;
+ struct regulator *reg_2v8;
+};
+
+static struct mt9p031 *to_mt9p031(const struct i2c_client *client)
+{
+ return container_of(i2c_get_clientdata(client), struct mt9p031, subdev);
+}
+
+static int reg_read(struct i2c_client *client, const u8 reg)
+{
+ s32 data = i2c_smbus_read_word_data(client, reg);
+ return data < 0 ? data : swab16(data);
+}
+
+static int reg_write(struct i2c_client *client, const u8 reg,
+ const u16 data)
+{
+ return i2c_smbus_write_word_data(client, reg, swab16(data));
+}
+
+static int reg_write_cached(struct i2c_client *client, const u8 reg,
+ const u16 data, u16 *cache)
+{
+ int ret;
+
+ ret = reg_write(client, reg, data);
+ if (ret < 0)
+ return ret;
+ *cache = data;
+ return 0;
+}
+
+static int mt9p031_set_output_control(struct mt9p031 *mt9p031, u16 clear,
+ u16 set)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);
+ u16 value = (mt9p031->output_control & ~clear) | set;
+
+ return reg_write_cached(client, MT9P031_OUTPUT_CONTROL, value,
+ &mt9p031->output_control);
+}
+
+static int restore_registers(struct i2c_client *client)
+{
+ int ret;
+ struct mt9p031 *mt9p031 = to_mt9p031(client);
+
+ /* Disable register update, reconfigure atomically */
+ ret = mt9p031_set_output_control(mt9p031, 0,
+ MT9P031_OUTPUT_CONTROL_SYN);
+ if (ret < 0)
+ return ret;
+
+ /* Blanking and start values - default... */
+ ret = reg_write(client, MT9P031_H_BLANKING, mt9p031->h_blanking);
+ if (ret < 0)
+ return ret;
+
+ ret = reg_write(client, MT9P031_V_BLANKING, mt9p031->v_blanking);
+ if (ret < 0)
+ return ret;
+
+ ret = reg_write(client, MT9P031_COLUMN_ADDRESS_MODE,
+ mt9p031->column_address_mode);
+ if (ret < 0)
+ return ret;
+
+ ret = reg_write(client, MT9P031_ROW_ADDRESS_MODE,
+ mt9p031->row_address_mode);
+ if (ret < 0)
+ return ret;
+
+ ret = reg_write(client, MT9P031_COLUMN_START,
+ mt9p031->column_start);
+ if (ret < 0)
+ return ret;
+
+ ret = reg_write(client, MT9P031_ROW_START,
+ mt9p031->row_start);
+ if (ret < 0)
+ return ret;
+
+ ret = reg_write(client, MT9P031_WINDOW_WIDTH,
+ mt9p031->window_width);
+ if (ret < 0)
+ return ret;
+
+ ret = reg_write(client, MT9P031_WINDOW_HEIGHT,
+ mt9p031->window_height);
+ if (ret < 0)
+ return ret;
+
+ /* Re-enable register update, commit all changes */
+ ret = mt9p031_set_output_control(mt9p031,
+ MT9P031_OUTPUT_CONTROL_SYN, 0);
+ if (ret < 0)
+ return ret;
+ return 0;
+}
+
+static int mt9p031_reset(struct i2c_client *client)
+{
+ struct mt9p031 *mt9p031 = to_mt9p031(client);
+ int ret;
+
+ /* Disable chip output, synchronous option update */
+ ret = reg_write(client, MT9P031_RST, MT9P031_RST_ENABLE);
+ if (ret < 0)
+ return ret;
+ ret = reg_write(client, MT9P031_RST, MT9P031_RST_DISABLE);
+ if (ret < 0)
+ return ret;
+ return mt9p031_set_output_control(mt9p031,
+ MT9P031_OUTPUT_CONTROL_CEN, 0);
+}
+
+static int mt9p031_power_on(struct mt9p031 *mt9p031)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);
+ int ret;
+
+ /* Ensure RESET_BAR is low */
+ if (mt9p031->pdata->reset)
+ mt9p031->pdata->reset(&mt9p031->subdev, 1);
+ /* turn on digital supply first */
+ ret = regulator_enable(mt9p031->reg_1v8);
+ if (ret) {
+ dev_err(&client->dev,
+ "Failed to enable 1.8v regulator: %d\n", ret);
+ goto err_1v8;
+ }
+ /* now turn on analog supply */
+ ret = regulator_enable(mt9p031->reg_2v8);
+ if (ret) {
+ dev_err(&client->dev,
+ "Failed to enable 2.8v regulator: %d\n", ret);
+ goto err_rst;
+ }
+ /* Now RESET_BAR must be high */
+ if (mt9p031->pdata->reset)
+ mt9p031->pdata->reset(&mt9p031->subdev, 0);
+
+ if (mt9p031->pdata->set_xclk)
+ mt9p031->pdata->set_xclk(&mt9p031->subdev, MT9P031_PIXCLK_FREQ);
+
+ /* soft reset */
+ ret = mt9p031_reset(client);
+ if (ret < 0) {
+ dev_err(&client->dev, "Failed to reset the camera\n");
+ goto err_rst;
+ }
+
+ ret = restore_registers(client);
+ if (ret < 0) {
+ dev_err(&client->dev, "Failed to restore registers\n");
+ goto err_rst;
+ }
+
+ return 0;
+err_rst:
+ regulator_disable(mt9p031->reg_1v8);
+err_1v8:
+ return ret;
+
+}
+
+static void mt9p031_power_off(struct mt9p031 *mt9p031)
+{
+ if (mt9p031->pdata->set_xclk)
+ mt9p031->pdata->set_xclk(&mt9p031->subdev, 0);
+ if (mt9p031->pdata->reset)
+ mt9p031->pdata->reset(&mt9p031->subdev, 1);
+ regulator_disable(mt9p031->reg_1v8);
+ regulator_disable(mt9p031->reg_2v8);
+}
+
+static int mt9p031_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ struct mt9p031 *mt9p031 = container_of(sd, struct mt9p031, subdev);
+
+ if (code->pad || code->index)
+ return -EINVAL;
+
+ code->code = mt9p031->format.code;
+
+ return 0;
+}
+
+static struct v4l2_mbus_framefmt *mt9p031_get_pad_format(
+ struct mt9p031 *mt9p031,
+ struct v4l2_subdev_fh *fh,
+ unsigned int pad, u32 which)
+{
+ switch (which) {
+ case V4L2_SUBDEV_FORMAT_TRY:
+ return v4l2_subdev_get_try_format(fh, pad);
+ case V4L2_SUBDEV_FORMAT_ACTIVE:
+ return &mt9p031->format;
+ default:
+ return NULL;
+ }
+}
+
+static struct v4l2_rect *mt9p031_get_pad_crop(struct mt9p031 *mt9p031,
+ struct v4l2_subdev_fh *fh, unsigned int pad, u32 which)
+{
+ switch (which) {
+ case V4L2_SUBDEV_FORMAT_TRY:
+ return v4l2_subdev_get_try_crop(fh, pad);
+ case V4L2_SUBDEV_FORMAT_ACTIVE:
+ return &mt9p031->rect;
+ default:
+ return NULL;
+ }
+}
+
+static int mt9p031_get_crop(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_crop *crop)
+{
+ struct mt9p031 *mt9p031 = container_of(sd, struct mt9p031, subdev);
+ struct v4l2_rect *rect = mt9p031_get_pad_crop(mt9p031, fh, crop->pad,
+ crop->which);
+ if (!rect)
+ return -EINVAL;
+
+ crop->rect = *rect;
+
+ return 0;
+}
+
+static u16 mt9p031_skip_for_crop(s32 source, s32 *target, s32 max_skip)
+{
+ unsigned int skip;
+
+ if (source - source / 4 < *target) {
+ *target = source;
+ return 1;
+ }
+
+ skip = DIV_ROUND_CLOSEST(source, *target);
+ if (skip > max_skip)
+ skip = max_skip;
+ *target = 2 * DIV_ROUND_UP(source, 2 * skip);
+
+ return skip;
+}
+
+static int mt9p031_set_params(struct i2c_client *client,
+ struct v4l2_rect *rect, u16 xskip, u16 yskip)
+{
+ struct mt9p031 *mt9p031 = to_mt9p031(client);
+ int ret;
+ u16 xbin, ybin;
+ const u16 hblank = MT9P031_H_BLANKING_VALUE,
+ vblank = MT9P031_V_BLANKING_VALUE;
+ __s32 left, top, width, height;
+
+ /*
+ * TODO: Attention! When implementing horizontal flipping, adjust
+ * alignment according to R2 "Column Start" description in the datasheet
+ */
+ if (xskip & 1) {
+ xbin = 1;
+ left = rect->left & (~3);
+ } else if (xskip & 2) {
+ xbin = 2;
+ left = rect->left & (~7);
+ } else {
+ xbin = 4;
+ left = rect->left & (~15);
+ }
+ top = rect->top & (~1);
+ width = rect->width;
+ height = rect->height;
+
+ ybin = min(yskip, (u16)4);
+
+ /* Disable register update, reconfigure atomically */
+ ret = mt9p031_set_output_control(mt9p031, 0,
+ MT9P031_OUTPUT_CONTROL_SYN);
+ if (ret < 0)
+ return ret;
+
+ dev_dbg(&client->dev, "skip %u:%u, rect %ux%u@%u:%u\n",
+ xskip, yskip, rect->width, rect->height, rect->left, rect->top);
+
+ /* Blanking and start values - default... */
+ ret = reg_write_cached(client, MT9P031_H_BLANKING, hblank,
+ &mt9p031->h_blanking);
+ if (ret < 0)
+ return ret;
+ ret = reg_write_cached(client, MT9P031_V_BLANKING, vblank,
+ &mt9p031->v_blanking);
+ if (ret < 0)
+ return ret;
+
+ ret = reg_write_cached(client, MT9P031_COLUMN_ADDRESS_MODE,
+ ((xbin - 1) << 4) | (xskip - 1),
+ &mt9p031->column_address_mode);
+ if (ret < 0)
+ return ret;
+ ret = reg_write_cached(client, MT9P031_ROW_ADDRESS_MODE,
+ ((ybin - 1) << 4) | (yskip - 1),
+ &mt9p031->row_address_mode);
+ if (ret < 0)
+ return ret;
+
+ dev_dbg(&client->dev, "new physical left %u, top %u\n",
+ rect->left, rect->top);
+
+ ret = reg_write_cached(client, MT9P031_COLUMN_START,
+ rect->left + MT9P031_COLUMN_START_DEF,
+ &mt9p031->column_start);
+ if (ret < 0)
+ return ret;
+ ret = reg_write_cached(client, MT9P031_ROW_START,
+ rect->top + MT9P031_ROW_START_DEF,
+ &mt9p031->row_start);
+ if (ret < 0)
+ return ret;
+ ret = reg_write_cached(client, MT9P031_WINDOW_WIDTH,
+ rect->width - 1,
+ &mt9p031->window_width);
+ if (ret < 0)
+ return ret;
+ ret = reg_write_cached(client, MT9P031_WINDOW_HEIGHT,
+ rect->height - 1,
+ &mt9p031->window_height);
+ if (ret < 0)
+ return ret;
+
+ /* Re-enable register update, commit all changes */
+ ret = mt9p031_set_output_control(mt9p031,
+ MT9P031_OUTPUT_CONTROL_SYN, 0);
+ if (ret < 0)
+ return ret;
+
+ mt9p031->xskip = xskip;
+ mt9p031->yskip = yskip;
+ return ret;
+}
+
+static int mt9p031_set_crop(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_crop *crop)
+{
+ struct mt9p031 *mt9p031 = container_of(sd, struct mt9p031, subdev);
+ struct v4l2_mbus_framefmt *f;
+ struct v4l2_rect *c;
+ struct v4l2_rect rect;
+ u16 xskip, yskip;
+ s32 width, height;
+
+ dev_dbg(mt9p031->subdev.v4l2_dev->dev, "%s(%ux%u@%u:%u : %u)\n",
+ __func__, crop->rect.width, crop->rect.height,
+ crop->rect.left, crop->rect.top, crop->which);
+
+ /*
+ * Clamp the crop rectangle boundaries and align them to a multiple of 2
+ * pixels.
+ */
+ rect.width = ALIGN(clamp(crop->rect.width,
+ MT9P031_WINDOW_WIDTH_MIN, MT9P031_WINDOW_WIDTH_MAX), 2);
+ rect.height = ALIGN(clamp(crop->rect.height,
+ MT9P031_WINDOW_HEIGHT_MIN, MT9P031_WINDOW_HEIGHT_MAX), 2);
+ rect.left = ALIGN(clamp(crop->rect.left,
+ 0, MT9P031_WINDOW_WIDTH_MAX - rect.width), 2);
+ rect.top = ALIGN(clamp(crop->rect.top,
+ 0, MT9P031_WINDOW_HEIGHT_MAX - rect.height), 2);
+
+ c = mt9p031_get_pad_crop(mt9p031, fh, crop->pad, crop->which);
+
+ if (rect.width != c->width || rect.height != c->height) {
+ /*
+ * Reset the output image size if the crop rectangle size has
+ * been modified.
+ */
+ f = mt9p031_get_pad_format(mt9p031, fh, crop->pad,
+ crop->which);
+ width = f->width;
+ height = f->height;
+
+ xskip = mt9p031_skip_for_crop(rect.width, &width, 7);
+ yskip = mt9p031_skip_for_crop(rect.height, &height, 8);
+ } else {
+ xskip = mt9p031->xskip;
+ yskip = mt9p031->yskip;
+ f = NULL;
+ }
+ if (f) {
+ f->width = width;
+ f->height = height;
+ }
+
+ *c = rect;
+ crop->rect = rect;
+
+ mt9p031->xskip = xskip;
+ mt9p031->yskip = yskip;
+ mt9p031->rect = *c;
+ return 0;
+}
+
+static int mt9p031_get_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_format *fmt)
+{
+ struct mt9p031 *mt9p031 = container_of(sd, struct mt9p031, subdev);
+
+ fmt->format =
+ *mt9p031_get_pad_format(mt9p031, fh, fmt->pad, fmt->which);
+ return 0;
+}
+
+static u16 mt9p031_skip_for_scale(s32 *source, s32 target,
+ s32 max_skip, s32 max)
+{
+ unsigned int skip;
+
+ if (*source - *source / 4 < target) {
+ *source = target;
+ return 1;
+ }
+
+ skip = min(max, *source + target / 2) / target;
+ if (skip > max_skip)
+ skip = max_skip;
+ *source = target * skip;
+
+ return skip;
+}
+
+static int mt9p031_fmt_validate(struct v4l2_subdev *sd,
+ struct v4l2_subdev_format *fmt)
+{
+ struct v4l2_mbus_framefmt *format = &fmt->format;
+
+ /* Hardcode code and colorspace as sensor only supports one */
+ format->code = V4L2_MBUS_FMT_SGRBG12_1X12;
+ format->colorspace = V4L2_COLORSPACE_SRGB;
+
+ format->width = clamp_t(int, ALIGN(format->width, 2), 2,
+ MT9P031_WINDOW_WIDTH_MAX);
+ format->height = clamp_t(int, ALIGN(format->height, 2), 2,
+ MT9P031_WINDOW_HEIGHT_MAX);
+ format->field = V4L2_FIELD_NONE;
+
+ return 0;
+}
+
+static int mt9p031_set_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_format *format)
+{
+ struct v4l2_subdev_format sdf = *format;
+ struct v4l2_mbus_framefmt *__format, *format_bak = &sdf.format;
+ struct v4l2_rect *__crop, rect;
+ struct mt9p031 *mt9p031 = container_of(sd, struct mt9p031, subdev);
+ u16 xskip, yskip;
+ int ret;
+
+ __crop = mt9p031_get_pad_crop(mt9p031, fh, format->pad, format->which);
+
+ ret = mt9p031_fmt_validate(sd, &sdf);
+ if (ret < 0)
+ return ret;
+ rect.width = __crop->width;
+ rect.height = __crop->height;
+
+ xskip = mt9p031_skip_for_scale(&rect.width, format_bak->width, 7,
+ MT9P031_WINDOW_WIDTH_MAX);
+ if (rect.width + __crop->left > MT9P031_WINDOW_WIDTH_MAX)
+ rect.left = (MT9P031_WINDOW_WIDTH_MAX - rect.width) / 2;
+ else
+ rect.left = __crop->left;
+ yskip = mt9p031_skip_for_scale(&rect.height, format_bak->height, 8,
+ MT9P031_WINDOW_HEIGHT_MAX);
+ if (rect.height + __crop->top > MT9P031_WINDOW_HEIGHT_MAX)
+ rect.top = (MT9P031_WINDOW_HEIGHT_MAX - rect.height) / 2;
+ else
+ rect.top = __crop->top;
+
+ dev_dbg(mt9p031->subdev.v4l2_dev->dev, "%s(%ux%u : %u)\n", __func__,
+ format_bak->width, format_bak->height, format->which);
+ if (__crop)
+ *__crop = rect;
+
+ __format = mt9p031_get_pad_format(mt9p031, fh, format->pad, format->which);
+ *__format = *format_bak;
+ format->format = *format_bak;
+
+ mt9p031->xskip = xskip;
+ mt9p031->yskip = yskip;
+ mt9p031->rect = *__crop;
+ return 0;
+}
+
+static int mt9p031_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct mt9p031 *mt9p031 = container_of(sd, struct mt9p031, subdev);
+ struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);
+ struct v4l2_rect rect = mt9p031->rect;
+ u16 xskip = mt9p031->xskip;
+ u16 yskip = mt9p031->yskip;
+ int ret;
+
+ if (enable) {
+ ret = mt9p031_set_params(client, &rect, xskip, yskip);
+ if (ret < 0)
+ return ret;
+ /* Switch to master "normal" mode */
+ ret = mt9p031_set_output_control(mt9p031, 0,
+ MT9P031_OUTPUT_CONTROL_CEN);
+ } else {
+ /* Stop sensor readout */
+ ret = mt9p031_set_output_control(mt9p031,
+ MT9P031_OUTPUT_CONTROL_CEN, 0);
+ }
+ return ret;
+}
+
+static int mt9p031_video_probe(struct i2c_client *client)
+{
+ s32 data;
+
+ /* Read out the chip version register */
+ data = reg_read(client, MT9P031_CHIP_VERSION);
+ if (data != MT9P031_CHIP_VERSION_VALUE) {
+ dev_err(&client->dev,
+ "No MT9P031 chip detected, register read %x\n", data);
+ return -ENODEV;
+ }
+
+ dev_info(&client->dev, "Detected a MT9P031 chip ID %x\n", data);
+
+ return 0;
+}
+
+static int mt9p031_set_power(struct v4l2_subdev *sd, int on)
+{
+ struct mt9p031 *mt9p031 = container_of(sd, struct mt9p031, subdev);
+ int ret = 0;
+
+ mutex_lock(&mt9p031->power_lock);
+
+ /*
+ * If the power count is modified from 0 to != 0 or from != 0 to 0,
+ * update the power state.
+ */
+ if (mt9p031->power_count == !on) {
+ if (on) {
+ ret = mt9p031_power_on(mt9p031);
+ if (ret) {
+ dev_err(mt9p031->subdev.v4l2_dev->dev,
+ "Failed to enable 2.8v regulator: %d\n", ret);
+ goto out;
+ }
+ } else {
+ mt9p031_power_off(mt9p031);
+ }
+ }
+
+ /* Update the power count. */
+ mt9p031->power_count += on ? 1 : -1;
+ WARN_ON(mt9p031->power_count < 0);
+
+out:
+ mutex_unlock(&mt9p031->power_lock);
+ return ret;
+}
+
+static int mt9p031_registered(struct v4l2_subdev *sd)
+{
+ struct mt9p031 *mt9p031 = container_of(sd, struct mt9p031, subdev);
+ struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev);
+ int ret;
+
+ ret = mt9p031_set_power(&mt9p031->subdev, 1);
+ if (ret) {
+ dev_err(&client->dev,
+ "Failed to power on device: %d\n", ret);
+ goto err_pwron;
+ }
+
+ ret = mt9p031_video_probe(client);
+ if (ret)
+ goto err_evprobe;
+
+ mt9p031->pad.flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_init(&mt9p031->subdev.entity, 1, &mt9p031->pad, 0);
+ if (ret)
+ goto err_evprobe;
+
+ mt9p031->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ mt9p031_set_power(&mt9p031->subdev, 0);
+
+ return 0;
+err_evprobe:
+ mt9p031_set_power(&mt9p031->subdev, 0);
+err_pwron:
+ return ret;
+}
+
+static int mt9p031_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ struct mt9p031 *mt9p031;
+ mt9p031 = container_of(sd, struct mt9p031, subdev);
+
+ mt9p031->rect.width = MT9P031_WINDOW_WIDTH_MAX;
+ mt9p031->rect.height = MT9P031_WINDOW_HEIGHT_MAX;
+ mt9p031->rect.left = MT9P031_COLUMN_START_DEF;
+ mt9p031->rect.top = MT9P031_ROW_START_DEF;
+
+ mt9p031->format.code = V4L2_MBUS_FMT_SGRBG12_1X12;
+ mt9p031->format.width = MT9P031_WINDOW_WIDTH_MAX;
+ mt9p031->format.height = MT9P031_WINDOW_HEIGHT_MAX;
+ mt9p031->format.field = V4L2_FIELD_NONE;
+ mt9p031->format.colorspace = V4L2_COLORSPACE_SRGB;
+
+ mt9p031->xskip = 1;
+ mt9p031->yskip = 1;
+ return mt9p031_set_power(sd, 1);
+}
+
+static int mt9p031_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ return mt9p031_set_power(sd, 0);
+}
+
+static struct v4l2_subdev_core_ops mt9p031_subdev_core_ops = {
+ .s_power = mt9p031_set_power,
+};
+
+static struct v4l2_subdev_video_ops mt9p031_subdev_video_ops = {
+ .s_stream = mt9p031_s_stream,
+};
+
+static struct v4l2_subdev_pad_ops mt9p031_subdev_pad_ops = {
+ .enum_mbus_code = mt9p031_enum_mbus_code,
+ .get_fmt = mt9p031_get_format,
+ .set_fmt = mt9p031_set_format,
+ .get_crop = mt9p031_get_crop,
+ .set_crop = mt9p031_set_crop,
+};
+
+static struct v4l2_subdev_ops mt9p031_subdev_ops = {
+ .core = &mt9p031_subdev_core_ops,
+ .video = &mt9p031_subdev_video_ops,
+ .pad = &mt9p031_subdev_pad_ops,
+};
+
+static const struct v4l2_subdev_internal_ops mt9p031_subdev_internal_ops = {
+ .registered = mt9p031_registered,
+ .open = mt9p031_open,
+ .close = mt9p031_close,
+};
+
+static int mt9p031_probe(struct i2c_client *client,
+ const struct i2c_device_id *did)
+{
+ struct mt9p031 *mt9p031;
+ struct mt9p031_platform_data *pdata = client->dev.platform_data;
+ struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+ int ret;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) {
+ dev_warn(&adapter->dev,
+ "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
+ return -EIO;
+ }
+
+ mt9p031 = kzalloc(sizeof(struct mt9p031), GFP_KERNEL);
+ if (!mt9p031)
+ return -ENOMEM;
+
+ mutex_init(&mt9p031->power_lock);
+ v4l2_i2c_subdev_init(&mt9p031->subdev, client, &mt9p031_subdev_ops);
+ mt9p031->subdev.internal_ops = &mt9p031_subdev_internal_ops;
+
+ mt9p031->pdata = pdata;
+
+ mt9p031->reg_1v8 = regulator_get(NULL, "cam_1v8");
+ if (IS_ERR(mt9p031->reg_1v8)) {
+ ret = PTR_ERR(mt9p031->reg_1v8);
+ dev_err(mt9p031->subdev.v4l2_dev->dev,
+ "Failed 1.8v regulator: %d\n", ret);
+ goto err_e1v8;
+ }
+
+ mt9p031->reg_2v8 = regulator_get(NULL, "cam_2v8");
+ if (IS_ERR(mt9p031->reg_2v8)) {
+ ret = PTR_ERR(mt9p031->reg_2v8);
+ dev_err(mt9p031->subdev.v4l2_dev->dev,
+ "Failed 2.8v regulator: %d\n", ret);
+ goto err_e2v8;
+ }
+ return 0;
+err_e2v8:
+ regulator_put(mt9p031->reg_1v8);
+err_e1v8:
+ kfree(mt9p031);
+ return ret;
+}
+
+static int mt9p031_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct mt9p031 *mt9p031 = container_of(sd, struct mt9p031, subdev);
+
+ v4l2_device_unregister_subdev(sd);
+ media_entity_cleanup(&sd->entity);
+ regulator_put(mt9p031->reg_2v8);
+ regulator_put(mt9p031->reg_1v8);
+ kfree(mt9p031);
+
+ return 0;
+}
+
+static const struct i2c_device_id mt9p031_id[] = {
+ { "mt9p031", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, mt9p031_id);
+
+static struct i2c_driver mt9p031_i2c_driver = {
+ .driver = {
+ .name = "mt9p031",
+ },
+ .probe = mt9p031_probe,
+ .remove = mt9p031_remove,
+ .id_table = mt9p031_id,
+};
+
+static int __init mt9p031_mod_init(void)
+{
+ return i2c_add_driver(&mt9p031_i2c_driver);
+}
+
+static void __exit mt9p031_mod_exit(void)
+{
+ i2c_del_driver(&mt9p031_i2c_driver);
+}
+
+module_init(mt9p031_mod_init);
+module_exit(mt9p031_mod_exit);
+
+MODULE_DESCRIPTION("Aptina MT9P031 Camera driver");
+MODULE_AUTHOR("Bastian Hecht <hechtb@gmail.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/include/media/mt9p031.h b/include/media/mt9p031.h
new file mode 100644
index 0000000..ad37eb3
--- /dev/null
+++ b/include/media/mt9p031.h
@@ -0,0 +1,11 @@
+#ifndef MT9P031_H
+#define MT9P031_H
+
+struct v4l2_subdev;
+
+struct mt9p031_platform_data {
+ int (*set_xclk)(struct v4l2_subdev *subdev, int hz);
+ int (*reset)(struct v4l2_subdev *subdev, int active);
+};
+
+#endif
--
1.6.6.1
recipes-kernel/linux/linux-omap_2.6.39.bb
+5 -1
View File
@@ -7,7 +7,7 @@ COMPATIBLE_MACHINE = "(beagleboard)"
# The main PR is now using MACHINE_KERNEL_PR, for omap3 see conf/machine/include/omap3.inc
SRCREV_pn-${PN} = "v2.6.39"
MACHINE_KERNEL_PR_append = "c"
MACHINE_KERNEL_PR_append = "d"
FILESPATHPKG_prepend = "linux-omap-2.6.39:"
@@ -49,6 +49,10 @@ SRC_URI_append = " \
file://beagle/0001-OMAP3-beagle-add-support-for-beagleboard-xM-revision.patch \
file://beagle/0002-OMAP3-beagle-add-support-for-expansionboards.patch \
file://beagle/0003-OMAP3-beagle-add-MADC-support.patch \
file://beagle/0004-OMAP3-beagle-add-regulators-for-camera-interface.patch \
file://beagle/0005-OMAP3-beagle-HACK-add-in-1GHz-OPP.patch \
\
file://camera/0001-Add-mt9p031-sensor-support.patch \
\
file://pm/linux-omap-2.6.39-ti-pm/0001-OMAP3-voltage-remove-spurious-pr_notice-for-debugfs.patch \
file://pm/linux-omap-2.6.39-ti-pm/0002-OMAP4-PM-remove-redundant-ifdef-CONFIG_PM.patch \