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author | Álvaro Fernández Rojas <noltari@gmail.com> | 2019-12-23 13:42:55 +0100 |
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committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2019-12-24 18:49:44 +0100 |
commit | 67dcc43f3a22dc3a7ac07a7065971b426feeb043 (patch) | |
tree | 0b647356dce45d2c79fd46cf201daa5089cc0934 /target/linux/brcm2708/patches-4.19/950-0779-media-i2c-Add-driver-for-Sony-IMX219-sensor.patch | |
parent | 47a93a810f78adce5a130d287f82b28e9b54313c (diff) | |
download | upstream-67dcc43f3a22dc3a7ac07a7065971b426feeb043.tar.gz upstream-67dcc43f3a22dc3a7ac07a7065971b426feeb043.tar.bz2 upstream-67dcc43f3a22dc3a7ac07a7065971b426feeb043.zip |
brcm2708: organize kernel patches
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0779-media-i2c-Add-driver-for-Sony-IMX219-sensor.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0779-media-i2c-Add-driver-for-Sony-IMX219-sensor.patch | 1146 |
1 files changed, 0 insertions, 1146 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0779-media-i2c-Add-driver-for-Sony-IMX219-sensor.patch b/target/linux/brcm2708/patches-4.19/950-0779-media-i2c-Add-driver-for-Sony-IMX219-sensor.patch deleted file mode 100644 index be6430ea5e..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0779-media-i2c-Add-driver-for-Sony-IMX219-sensor.patch +++ /dev/null @@ -1,1146 +0,0 @@ -From 2186344c6d83ccd169e16c048c8b43aff95545e2 Mon Sep 17 00:00:00 2001 -From: Dave Stevenson <dave.stevenson@raspberrypi.org> -Date: Wed, 28 Aug 2019 13:34:49 +0100 -Subject: [PATCH 779/806] media: i2c: Add driver for Sony IMX219 sensor - -Adds a driver for the 8MPix Sony IMX219 CSI2 sensor. -Whilst the sensor supports 2 or 4 CSI2 data lanes, this driver -currently only supports 2 lanes. -8MPix @ 15fps, 1080P @ 30fps (cropped FOV), and 1640x1232 (2x2 binned) -@ 30fps are currently supported. - -Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> -Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> ---- - drivers/media/i2c/Kconfig | 11 + - drivers/media/i2c/Makefile | 1 + - drivers/media/i2c/imx219.c | 1093 ++++++++++++++++++++++++++++++++++++ - 3 files changed, 1105 insertions(+) - create mode 100644 drivers/media/i2c/imx219.c - ---- a/drivers/media/i2c/Kconfig -+++ b/drivers/media/i2c/Kconfig -@@ -597,6 +597,17 @@ config VIDEO_APTINA_PLL - config VIDEO_SMIAPP_PLL - tristate - -+config VIDEO_IMX219 -+ tristate "Sony IMX219 sensor support" -+ depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API -+ depends on MEDIA_CAMERA_SUPPORT -+ help -+ This is a Video4Linux2 sensor driver for the Sony -+ IMX219 camera. -+ -+ To compile this driver as a module, choose M here: the -+ module will be called imx219. -+ - config VIDEO_IMX258 - tristate "Sony IMX258 sensor support" - depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API ---- a/drivers/media/i2c/Makefile -+++ b/drivers/media/i2c/Makefile -@@ -106,6 +106,7 @@ obj-$(CONFIG_VIDEO_I2C) += video-i2c.o - obj-$(CONFIG_VIDEO_ML86V7667) += ml86v7667.o - obj-$(CONFIG_VIDEO_OV2659) += ov2659.o - obj-$(CONFIG_VIDEO_TC358743) += tc358743.o -+obj-$(CONFIG_VIDEO_IMX219) += imx219.o - obj-$(CONFIG_VIDEO_IMX258) += imx258.o - obj-$(CONFIG_VIDEO_IMX274) += imx274.o - ---- /dev/null -+++ b/drivers/media/i2c/imx219.c -@@ -0,0 +1,1093 @@ -+// SPDX-License-Identifier: GPL-2.0 -+/* -+ * A V4L2 driver for Sony IMX219 cameras. -+ * Copyright (C) 2019, Raspberry Pi (Trading) Ltd -+ * -+ * Based on Sony imx258 camera driver -+ * Copyright (C) 2018 Intel Corporation -+ * -+ * DT / fwnode changes, and regulator / GPIO control taken from ov5640.c -+ * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved. -+ * Copyright (C) 2014-2017 Mentor Graphics Inc. -+ * -+ */ -+ -+#include <linux/clk.h> -+#include <linux/clk-provider.h> -+#include <linux/clkdev.h> -+#include <linux/delay.h> -+#include <linux/gpio/consumer.h> -+#include <linux/i2c.h> -+#include <linux/module.h> -+#include <linux/pm_runtime.h> -+#include <linux/regulator/consumer.h> -+#include <media/v4l2-ctrls.h> -+#include <media/v4l2-device.h> -+#include <media/v4l2-fwnode.h> -+#include <media/v4l2-mediabus.h> -+#include <asm/unaligned.h> -+ -+#define IMX219_REG_VALUE_08BIT 1 -+#define IMX219_REG_VALUE_16BIT 2 -+ -+#define IMX219_REG_MODE_SELECT 0x0100 -+#define IMX219_MODE_STANDBY 0x00 -+#define IMX219_MODE_STREAMING 0x01 -+ -+/* Chip ID */ -+#define IMX219_REG_CHIP_ID 0x0000 -+#define IMX219_CHIP_ID 0x0219 -+ -+/* V_TIMING internal */ -+#define IMX219_REG_VTS 0x0160 -+#define IMX219_VTS_15FPS 0x0dc6 -+#define IMX219_VTS_30FPS_1080P 0x06e3 -+#define IMX219_VTS_30FPS_BINNED 0x06e3 -+#define IMX219_VTS_MAX 0xffff -+ -+/*Frame Length Line*/ -+#define IMX219_FLL_MIN 0x08a6 -+#define IMX219_FLL_MAX 0xffff -+#define IMX219_FLL_STEP 1 -+#define IMX219_FLL_DEFAULT 0x0c98 -+ -+/* HBLANK control - read only */ -+#define IMX219_PPL_DEFAULT 5352 -+ -+/* Exposure control */ -+#define IMX219_REG_EXPOSURE 0x015a -+#define IMX219_EXPOSURE_MIN 4 -+#define IMX219_EXPOSURE_STEP 1 -+#define IMX219_EXPOSURE_DEFAULT 0x640 -+#define IMX219_EXPOSURE_MAX 65535 -+ -+/* Analog gain control */ -+#define IMX219_REG_ANALOG_GAIN 0x0157 -+#define IMX219_ANA_GAIN_MIN 0 -+#define IMX219_ANA_GAIN_MAX 232 -+#define IMX219_ANA_GAIN_STEP 1 -+#define IMX219_ANA_GAIN_DEFAULT 0x0 -+ -+/* Digital gain control */ -+#define IMX219_REG_DIGITAL_GAIN 0x0158 -+#define IMX219_DGTL_GAIN_MIN 0x0100 -+#define IMX219_DGTL_GAIN_MAX 0x0fff -+#define IMX219_DGTL_GAIN_DEFAULT 0x0100 -+#define IMX219_DGTL_GAIN_STEP 1 -+ -+/* Test Pattern Control */ -+#define IMX219_REG_TEST_PATTERN 0x0600 -+#define IMX219_TEST_PATTERN_DISABLE 0 -+#define IMX219_TEST_PATTERN_SOLID_COLOR 1 -+#define IMX219_TEST_PATTERN_COLOR_BARS 2 -+#define IMX219_TEST_PATTERN_GREY_COLOR 3 -+#define IMX219_TEST_PATTERN_PN9 4 -+ -+struct imx219_reg { -+ u16 address; -+ u8 val; -+}; -+ -+struct imx219_reg_list { -+ u32 num_of_regs; -+ const struct imx219_reg *regs; -+}; -+ -+/* Mode : resolution and related config&values */ -+struct imx219_mode { -+ /* Frame width */ -+ u32 width; -+ /* Frame height */ -+ u32 height; -+ -+ /* V-timing */ -+ u32 vts_def; -+ -+ /* Default register values */ -+ struct imx219_reg_list reg_list; -+}; -+ -+/* -+ * Register sets lifted off the i2C interface from the Raspberry Pi firmware -+ * driver. -+ * 3280x2464 = mode 2, 1920x1080 = mode 1, and 1640x1232 = mode 4. -+ */ -+static const struct imx219_reg mode_3280x2464_regs[] = { -+ {0x0100, 0x00}, -+ {0x30eb, 0x0c}, -+ {0x30eb, 0x05}, -+ {0x300a, 0xff}, -+ {0x300b, 0xff}, -+ {0x30eb, 0x05}, -+ {0x30eb, 0x09}, -+ {0x0114, 0x01}, -+ {0x0128, 0x00}, -+ {0x012a, 0x18}, -+ {0x012b, 0x00}, -+ {0x0164, 0x00}, -+ {0x0165, 0x00}, -+ {0x0166, 0x0c}, -+ {0x0167, 0xcf}, -+ {0x0168, 0x00}, -+ {0x0169, 0x00}, -+ {0x016a, 0x09}, -+ {0x016b, 0x9f}, -+ {0x016c, 0x0c}, -+ {0x016d, 0xd0}, -+ {0x016e, 0x09}, -+ {0x016f, 0xa0}, -+ {0x0170, 0x01}, -+ {0x0171, 0x01}, -+ {0x0174, 0x00}, -+ {0x0175, 0x00}, -+ {0x018c, 0x0a}, -+ {0x018d, 0x0a}, -+ {0x0301, 0x05}, -+ {0x0303, 0x01}, -+ {0x0304, 0x03}, -+ {0x0305, 0x03}, -+ {0x0306, 0x00}, -+ {0x0307, 0x39}, -+ {0x0309, 0x0a}, -+ {0x030b, 0x01}, -+ {0x030c, 0x00}, -+ {0x030d, 0x72}, -+ {0x0624, 0x0c}, -+ {0x0625, 0xd0}, -+ {0x0626, 0x09}, -+ {0x0627, 0xa0}, -+ {0x455e, 0x00}, -+ {0x471e, 0x4b}, -+ {0x4767, 0x0f}, -+ {0x4750, 0x14}, -+ {0x4540, 0x00}, -+ {0x47b4, 0x14}, -+ {0x4713, 0x30}, -+ {0x478b, 0x10}, -+ {0x478f, 0x10}, -+ {0x4793, 0x10}, -+ {0x4797, 0x0e}, -+ {0x479b, 0x0e}, -+ -+ {0x0172, 0x03}, -+ {0x0162, 0x0d}, -+ {0x0163, 0x78}, -+}; -+ -+static const struct imx219_reg mode_1920_1080_regs[] = { -+ {0x0100, 0x00}, -+ {0x30eb, 0x05}, -+ {0x30eb, 0x0c}, -+ {0x300a, 0xff}, -+ {0x300b, 0xff}, -+ {0x30eb, 0x05}, -+ {0x30eb, 0x09}, -+ {0x0114, 0x01}, -+ {0x0128, 0x00}, -+ {0x012a, 0x18}, -+ {0x012b, 0x00}, -+ {0x0162, 0x0d}, -+ {0x0163, 0x78}, -+ {0x0164, 0x02}, -+ {0x0165, 0xa8}, -+ {0x0166, 0x0a}, -+ {0x0167, 0x27}, -+ {0x0168, 0x02}, -+ {0x0169, 0xb4}, -+ {0x016a, 0x06}, -+ {0x016b, 0xeb}, -+ {0x016c, 0x07}, -+ {0x016d, 0x80}, -+ {0x016e, 0x04}, -+ {0x016f, 0x38}, -+ {0x0170, 0x01}, -+ {0x0171, 0x01}, -+ {0x0174, 0x00}, -+ {0x0175, 0x00}, -+ {0x018c, 0x0a}, -+ {0x018d, 0x0a}, -+ {0x0301, 0x05}, -+ {0x0303, 0x01}, -+ {0x0304, 0x03}, -+ {0x0305, 0x03}, -+ {0x0306, 0x00}, -+ {0x0307, 0x39}, -+ {0x0309, 0x0a}, -+ {0x030b, 0x01}, -+ {0x030c, 0x00}, -+ {0x030d, 0x72}, -+ {0x455e, 0x00}, -+ {0x471e, 0x4b}, -+ {0x4767, 0x0f}, -+ {0x4750, 0x14}, -+ {0x4540, 0x00}, -+ {0x47b4, 0x14}, -+ {0x4713, 0x30}, -+ {0x478b, 0x10}, -+ {0x478f, 0x10}, -+ {0x4793, 0x10}, -+ {0x4797, 0x0e}, -+ {0x479b, 0x0e}, -+ -+ {0x0172, 0x03}, -+ {0x0162, 0x0d}, -+ {0x0163, 0x78}, -+}; -+ -+static const struct imx219_reg mode_1640_1232_regs[] = { -+ {0x30eb, 0x0c}, -+ {0x30eb, 0x05}, -+ {0x300a, 0xff}, -+ {0x300b, 0xff}, -+ {0x30eb, 0x05}, -+ {0x30eb, 0x09}, -+ {0x0114, 0x01}, -+ {0x0128, 0x00}, -+ {0x012a, 0x18}, -+ {0x012b, 0x00}, -+ {0x0164, 0x00}, -+ {0x0165, 0x00}, -+ {0x0166, 0x0c}, -+ {0x0167, 0xcf}, -+ {0x0168, 0x00}, -+ {0x0169, 0x00}, -+ {0x016a, 0x09}, -+ {0x016b, 0x9f}, -+ {0x016c, 0x06}, -+ {0x016d, 0x68}, -+ {0x016e, 0x04}, -+ {0x016f, 0xd0}, -+ {0x0170, 0x01}, -+ {0x0171, 0x01}, -+ {0x0174, 0x01}, -+ {0x0175, 0x01}, -+ {0x018c, 0x0a}, -+ {0x018d, 0x0a}, -+ {0x0301, 0x05}, -+ {0x0303, 0x01}, -+ {0x0304, 0x03}, -+ {0x0305, 0x03}, -+ {0x0306, 0x00}, -+ {0x0307, 0x39}, -+ {0x0309, 0x0a}, -+ {0x030b, 0x01}, -+ {0x030c, 0x00}, -+ {0x030d, 0x72}, -+ {0x455e, 0x00}, -+ {0x471e, 0x4b}, -+ {0x4767, 0x0f}, -+ {0x4750, 0x14}, -+ {0x4540, 0x00}, -+ {0x47b4, 0x14}, -+ {0x4713, 0x30}, -+ {0x478b, 0x10}, -+ {0x478f, 0x10}, -+ {0x4793, 0x10}, -+ {0x4797, 0x0e}, -+ {0x479b, 0x0e}, -+ -+ {0x0172, 0x03}, -+ {0x0162, 0x0d}, -+ {0x0163, 0x78}, -+}; -+ -+static const char * const imx219_test_pattern_menu[] = { -+ "Disabled", -+ "Color Bars", -+ "Solid Color", -+ "Grey Color Bars", -+ "PN9" -+}; -+ -+static const int imx219_test_pattern_val[] = { -+ IMX219_TEST_PATTERN_DISABLE, -+ IMX219_TEST_PATTERN_COLOR_BARS, -+ IMX219_TEST_PATTERN_SOLID_COLOR, -+ IMX219_TEST_PATTERN_GREY_COLOR, -+ IMX219_TEST_PATTERN_PN9, -+}; -+ -+/* regulator supplies */ -+static const char * const imx219_supply_name[] = { -+ /* Supplies can be enabled in any order */ -+ "VANA", /* Analog (2.8V) supply */ -+ "VDIG", /* Digital Core (1.8V) supply */ -+ "VDDL", /* IF (1.2V) supply */ -+}; -+ -+#define IMX219_NUM_SUPPLIES ARRAY_SIZE(imx219_supply_name) -+ -+#define IMX219_XCLR_DELAY_MS 10 /* Initialisation delay after XCLR low->high */ -+ -+/* Mode configs */ -+static const struct imx219_mode supported_modes[] = { -+ { -+ /* 8MPix 15fps mode */ -+ .width = 3280, -+ .height = 2464, -+ .vts_def = IMX219_VTS_15FPS, -+ .reg_list = { -+ .num_of_regs = ARRAY_SIZE(mode_3280x2464_regs), -+ .regs = mode_3280x2464_regs, -+ }, -+ }, -+ { -+ /* 1080P 30fps cropped */ -+ .width = 1920, -+ .height = 1080, -+ .vts_def = IMX219_VTS_30FPS_1080P, -+ .reg_list = { -+ .num_of_regs = ARRAY_SIZE(mode_1920_1080_regs), -+ .regs = mode_1920_1080_regs, -+ }, -+ }, -+ { -+ /* 2x2 binned 30fps mode */ -+ .width = 1640, -+ .height = 1232, -+ .vts_def = IMX219_VTS_30FPS_BINNED, -+ .reg_list = { -+ .num_of_regs = ARRAY_SIZE(mode_1640_1232_regs), -+ .regs = mode_1640_1232_regs, -+ }, -+ }, -+}; -+ -+struct imx219 { -+ struct v4l2_subdev sd; -+ struct media_pad pad; -+ -+ struct v4l2_fwnode_endpoint ep; /* the parsed DT endpoint info */ -+ struct clk *xclk; /* system clock to IMX219 */ -+ u32 xclk_freq; -+ -+ struct gpio_desc *xclr_gpio; -+ struct regulator_bulk_data supplies[IMX219_NUM_SUPPLIES]; -+ -+ struct v4l2_ctrl_handler ctrl_handler; -+ /* V4L2 Controls */ -+ struct v4l2_ctrl *pixel_rate; -+ struct v4l2_ctrl *exposure; -+ -+ /* Current mode */ -+ const struct imx219_mode *mode; -+ -+ /* -+ * Mutex for serialized access: -+ * Protect sensor module set pad format and start/stop streaming safely. -+ */ -+ struct mutex mutex; -+ -+ int power_count; -+ /* Streaming on/off */ -+ bool streaming; -+}; -+ -+static inline struct imx219 *to_imx219(struct v4l2_subdev *_sd) -+{ -+ return container_of(_sd, struct imx219, sd); -+} -+ -+/* Read registers up to 2 at a time */ -+static int imx219_read_reg(struct imx219 *imx219, u16 reg, u32 len, u32 *val) -+{ -+ struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); -+ struct i2c_msg msgs[2]; -+ u8 addr_buf[2] = { reg >> 8, reg & 0xff }; -+ u8 data_buf[4] = { 0, }; -+ int ret; -+ -+ if (len > 4) -+ return -EINVAL; -+ -+ /* Write register address */ -+ msgs[0].addr = client->addr; -+ msgs[0].flags = 0; -+ msgs[0].len = ARRAY_SIZE(addr_buf); -+ msgs[0].buf = addr_buf; -+ -+ /* Read data from register */ -+ msgs[1].addr = client->addr; -+ msgs[1].flags = I2C_M_RD; -+ msgs[1].len = len; -+ msgs[1].buf = &data_buf[4 - len]; -+ -+ ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); -+ if (ret != ARRAY_SIZE(msgs)) -+ return -EIO; -+ -+ *val = get_unaligned_be32(data_buf); -+ -+ return 0; -+} -+ -+/* Write registers up to 2 at a time */ -+static int imx219_write_reg(struct imx219 *imx219, u16 reg, u32 len, u32 val) -+{ -+ struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); -+ u8 buf[6]; -+ -+ if (len > 4) -+ return -EINVAL; -+ -+ put_unaligned_be16(reg, buf); -+ put_unaligned_be32(val << (8 * (4 - len)), buf + 2); -+ if (i2c_master_send(client, buf, len + 2) != len + 2) -+ return -EIO; -+ -+ return 0; -+} -+ -+/* Write a list of registers */ -+static int imx219_write_regs(struct imx219 *imx219, -+ const struct imx219_reg *regs, u32 len) -+{ -+ struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); -+ unsigned int i; -+ int ret; -+ -+ for (i = 0; i < len; i++) { -+ ret = imx219_write_reg(imx219, regs[i].address, 1, regs[i].val); -+ if (ret) { -+ dev_err_ratelimited(&client->dev, -+ "Failed to write reg 0x%4.4x. error = %d\n", -+ regs[i].address, ret); -+ -+ return ret; -+ } -+ } -+ -+ return 0; -+} -+ -+/* Power/clock management functions */ -+static void imx219_power(struct imx219 *imx219, bool enable) -+{ -+ gpiod_set_value_cansleep(imx219->xclr_gpio, enable ? 1 : 0); -+} -+ -+static int imx219_set_power_on(struct imx219 *imx219) -+{ -+ struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); -+ int ret; -+ -+ ret = clk_prepare_enable(imx219->xclk); -+ if (ret) { -+ dev_err(&client->dev, "%s: failed to enable clock\n", -+ __func__); -+ return ret; -+ } -+ -+ ret = regulator_bulk_enable(IMX219_NUM_SUPPLIES, -+ imx219->supplies); -+ if (ret) { -+ dev_err(&client->dev, "%s: failed to enable regulators\n", -+ __func__); -+ goto xclk_off; -+ } -+ -+ imx219_power(imx219, true); -+ msleep(IMX219_XCLR_DELAY_MS); -+ -+ return 0; -+xclk_off: -+ clk_disable_unprepare(imx219->xclk); -+ return ret; -+} -+ -+static void imx219_set_power_off(struct imx219 *imx219) -+{ -+ imx219_power(imx219, false); -+ regulator_bulk_disable(IMX219_NUM_SUPPLIES, imx219->supplies); -+ clk_disable_unprepare(imx219->xclk); -+} -+ -+static int imx219_set_power(struct imx219 *imx219, bool on) -+{ -+ int ret = 0; -+ -+ if (on) { -+ ret = imx219_set_power_on(imx219); -+ if (ret) -+ return ret; -+ } else { -+ imx219_set_power_off(imx219); -+ } -+ -+ return 0; -+} -+ -+/* Open sub-device */ -+static int imx219_s_power(struct v4l2_subdev *sd, int on) -+{ -+ struct imx219 *imx219 = to_imx219(sd); -+ int ret = 0; -+ -+ mutex_lock(&imx219->mutex); -+ -+ /* -+ * If the power count is modified from 0 to != 0 or from != 0 to 0, -+ * update the power state. -+ */ -+ if (imx219->power_count == !on) { -+ ret = imx219_set_power(imx219, !!on); -+ if (ret) -+ goto out; -+ } -+ -+ /* Update the power count. */ -+ imx219->power_count += on ? 1 : -1; -+ WARN_ON(imx219->power_count < 0); -+out: -+ mutex_unlock(&imx219->mutex); -+ -+ return ret; -+} -+ -+static int imx219_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) -+{ -+ struct v4l2_mbus_framefmt *try_fmt = -+ v4l2_subdev_get_try_format(sd, fh->pad, 0); -+ -+ /* Initialize try_fmt */ -+ try_fmt->width = supported_modes[0].width; -+ try_fmt->height = supported_modes[0].height; -+ try_fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10; -+ try_fmt->field = V4L2_FIELD_NONE; -+ -+ return 0; -+} -+ -+static int imx219_set_ctrl(struct v4l2_ctrl *ctrl) -+{ -+ struct imx219 *imx219 = -+ container_of(ctrl->handler, struct imx219, ctrl_handler); -+ struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); -+ int ret = 0; -+ -+ /* -+ * Applying V4L2 control value only happens -+ * when power is up for streaming -+ */ -+ if (pm_runtime_get_if_in_use(&client->dev) == 0) -+ return 0; -+ -+ switch (ctrl->id) { -+ case V4L2_CID_ANALOGUE_GAIN: -+ ret = imx219_write_reg(imx219, IMX219_REG_ANALOG_GAIN, -+ IMX219_REG_VALUE_08BIT, ctrl->val); -+ break; -+ case V4L2_CID_EXPOSURE: -+ ret = imx219_write_reg(imx219, IMX219_REG_EXPOSURE, -+ IMX219_REG_VALUE_16BIT, ctrl->val); -+ break; -+ case V4L2_CID_DIGITAL_GAIN: -+ ret = imx219_write_reg(imx219, IMX219_REG_DIGITAL_GAIN, -+ IMX219_REG_VALUE_16BIT, ctrl->val); -+ break; -+ case V4L2_CID_TEST_PATTERN: -+ ret = imx219_write_reg(imx219, IMX219_REG_TEST_PATTERN, -+ IMX219_REG_VALUE_16BIT, -+ imx219_test_pattern_val[ctrl->val]); -+ break; -+ default: -+ dev_info(&client->dev, -+ "ctrl(id:0x%x,val:0x%x) is not handled\n", -+ ctrl->id, ctrl->val); -+ ret = -EINVAL; -+ break; -+ } -+ -+ pm_runtime_put(&client->dev); -+ -+ return ret; -+} -+ -+static const struct v4l2_ctrl_ops imx219_ctrl_ops = { -+ .s_ctrl = imx219_set_ctrl, -+}; -+ -+static int imx219_enum_mbus_code(struct v4l2_subdev *sd, -+ struct v4l2_subdev_pad_config *cfg, -+ struct v4l2_subdev_mbus_code_enum *code) -+{ -+ /* Only one bayer order(GRBG) is supported */ -+ if (code->index > 0) -+ return -EINVAL; -+ -+ code->code = MEDIA_BUS_FMT_SBGGR10_1X10; -+ -+ return 0; -+} -+ -+static int imx219_enum_frame_size(struct v4l2_subdev *sd, -+ struct v4l2_subdev_pad_config *cfg, -+ struct v4l2_subdev_frame_size_enum *fse) -+{ -+ if (fse->index >= ARRAY_SIZE(supported_modes)) -+ return -EINVAL; -+ -+ if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10) -+ return -EINVAL; -+ -+ fse->min_width = supported_modes[fse->index].width; -+ fse->max_width = fse->min_width; -+ fse->min_height = supported_modes[fse->index].height; -+ fse->max_height = fse->min_height; -+ -+ return 0; -+} -+ -+static void imx219_update_pad_format(const struct imx219_mode *mode, -+ struct v4l2_subdev_format *fmt) -+{ -+ fmt->format.width = mode->width; -+ fmt->format.height = mode->height; -+ fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10; -+ fmt->format.field = V4L2_FIELD_NONE; -+} -+ -+static int __imx219_get_pad_format(struct imx219 *imx219, -+ struct v4l2_subdev_pad_config *cfg, -+ struct v4l2_subdev_format *fmt) -+{ -+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) -+ fmt->format = *v4l2_subdev_get_try_format(&imx219->sd, cfg, -+ fmt->pad); -+ else -+ imx219_update_pad_format(imx219->mode, fmt); -+ -+ return 0; -+} -+ -+static int imx219_get_pad_format(struct v4l2_subdev *sd, -+ struct v4l2_subdev_pad_config *cfg, -+ struct v4l2_subdev_format *fmt) -+{ -+ struct imx219 *imx219 = to_imx219(sd); -+ int ret; -+ -+ mutex_lock(&imx219->mutex); -+ ret = __imx219_get_pad_format(imx219, cfg, fmt); -+ mutex_unlock(&imx219->mutex); -+ -+ return ret; -+} -+ -+static int imx219_set_pad_format(struct v4l2_subdev *sd, -+ struct v4l2_subdev_pad_config *cfg, -+ struct v4l2_subdev_format *fmt) -+{ -+ struct imx219 *imx219 = to_imx219(sd); -+ const struct imx219_mode *mode; -+ struct v4l2_mbus_framefmt *framefmt; -+ -+ mutex_lock(&imx219->mutex); -+ -+ /* Only one raw bayer(BGGR) order is supported */ -+ fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10; -+ -+ mode = v4l2_find_nearest_size(supported_modes, -+ ARRAY_SIZE(supported_modes), -+ width, height, -+ fmt->format.width, fmt->format.height); -+ imx219_update_pad_format(mode, fmt); -+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { -+ framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); -+ *framefmt = fmt->format; -+ } else { -+ imx219->mode = mode; -+ } -+ -+ mutex_unlock(&imx219->mutex); -+ -+ return 0; -+} -+ -+/* Start streaming */ -+static int imx219_start_streaming(struct imx219 *imx219) -+{ -+ struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); -+ const struct imx219_reg_list *reg_list; -+ int ret; -+ -+ /* Apply default values of current mode */ -+ reg_list = &imx219->mode->reg_list; -+ ret = imx219_write_regs(imx219, reg_list->regs, reg_list->num_of_regs); -+ if (ret) { -+ dev_err(&client->dev, "%s failed to set mode\n", __func__); -+ return ret; -+ } -+ -+ /* -+ * Set VTS appropriately for frame rate control. -+ * Currently fixed per mode. -+ */ -+ ret = imx219_write_reg(imx219, IMX219_REG_VTS, -+ IMX219_REG_VALUE_16BIT, imx219->mode->vts_def); -+ if (ret) -+ return ret; -+ -+ /* Apply customized values from user */ -+ ret = __v4l2_ctrl_handler_setup(imx219->sd.ctrl_handler); -+ if (ret) -+ return ret; -+ -+ /* set stream on register */ -+ return imx219_write_reg(imx219, IMX219_REG_MODE_SELECT, -+ IMX219_REG_VALUE_08BIT, IMX219_MODE_STREAMING); -+} -+ -+/* Stop streaming */ -+static int imx219_stop_streaming(struct imx219 *imx219) -+{ -+ struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); -+ int ret; -+ -+ /* set stream off register */ -+ ret = imx219_write_reg(imx219, IMX219_REG_MODE_SELECT, -+ IMX219_REG_VALUE_08BIT, IMX219_MODE_STANDBY); -+ if (ret) -+ dev_err(&client->dev, "%s failed to set stream\n", __func__); -+ -+ /* -+ * Return success even if it was an error, as there is nothing the -+ * caller can do about it. -+ */ -+ return 0; -+} -+ -+static int imx219_set_stream(struct v4l2_subdev *sd, int enable) -+{ -+ struct imx219 *imx219 = to_imx219(sd); -+ struct i2c_client *client = v4l2_get_subdevdata(sd); -+ int ret = 0; -+ -+ mutex_lock(&imx219->mutex); -+ if (imx219->streaming == enable) { -+ mutex_unlock(&imx219->mutex); -+ return 0; -+ } -+ -+ if (enable) { -+ ret = pm_runtime_get_sync(&client->dev); -+ if (ret < 0) { -+ pm_runtime_put_noidle(&client->dev); -+ goto err_unlock; -+ } -+ -+ /* -+ * Apply default & customized values -+ * and then start streaming. -+ */ -+ ret = imx219_start_streaming(imx219); -+ if (ret) { -+ pm_runtime_put(&client->dev); -+ goto err_unlock; -+ } -+ } else { -+ imx219_stop_streaming(imx219); -+ pm_runtime_put(&client->dev); -+ } -+ -+ imx219->streaming = enable; -+ mutex_unlock(&imx219->mutex); -+ -+ return ret; -+ -+err_unlock: -+ mutex_unlock(&imx219->mutex); -+ -+ return ret; -+} -+ -+static int __maybe_unused imx219_suspend(struct device *dev) -+{ -+ struct i2c_client *client = to_i2c_client(dev); -+ struct v4l2_subdev *sd = i2c_get_clientdata(client); -+ struct imx219 *imx219 = to_imx219(sd); -+ -+ if (imx219->streaming) -+ imx219_stop_streaming(imx219); -+ -+ return 0; -+} -+ -+static int __maybe_unused imx219_resume(struct device *dev) -+{ -+ struct i2c_client *client = to_i2c_client(dev); -+ struct v4l2_subdev *sd = i2c_get_clientdata(client); -+ struct imx219 *imx219 = to_imx219(sd); -+ int ret; -+ -+ if (imx219->streaming) { -+ ret = imx219_start_streaming(imx219); -+ if (ret) -+ goto error; -+ } -+ -+ return 0; -+ -+error: -+ imx219_stop_streaming(imx219); -+ imx219->streaming = 0; -+ return ret; -+} -+ -+static int imx219_get_regulators(struct imx219 *imx219) -+{ -+ struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); -+ int i; -+ -+ for (i = 0; i < IMX219_NUM_SUPPLIES; i++) -+ imx219->supplies[i].supply = imx219_supply_name[i]; -+ -+ return devm_regulator_bulk_get(&client->dev, -+ IMX219_NUM_SUPPLIES, -+ imx219->supplies); -+} -+ -+/* Verify chip ID */ -+static int imx219_identify_module(struct imx219 *imx219) -+{ -+ struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); -+ int ret; -+ u32 val; -+ -+ ret = imx219_set_power_on(imx219); -+ if (ret) -+ return ret; -+ -+ ret = imx219_read_reg(imx219, IMX219_REG_CHIP_ID, -+ IMX219_REG_VALUE_16BIT, &val); -+ if (ret) { -+ dev_err(&client->dev, "failed to read chip id %x\n", -+ IMX219_CHIP_ID); -+ goto power_off; -+ } -+ -+ if (val != IMX219_CHIP_ID) { -+ dev_err(&client->dev, "chip id mismatch: %x!=%x\n", -+ IMX219_CHIP_ID, val); -+ ret = -EIO; -+ } -+ -+power_off: -+ imx219_set_power_off(imx219); -+ return ret; -+} -+ -+static const struct v4l2_subdev_core_ops imx219_core_ops = { -+ .s_power = imx219_s_power, -+}; -+ -+static const struct v4l2_subdev_video_ops imx219_video_ops = { -+ .s_stream = imx219_set_stream, -+}; -+ -+static const struct v4l2_subdev_pad_ops imx219_pad_ops = { -+ .enum_mbus_code = imx219_enum_mbus_code, -+ .get_fmt = imx219_get_pad_format, -+ .set_fmt = imx219_set_pad_format, -+ .enum_frame_size = imx219_enum_frame_size, -+}; -+ -+static const struct v4l2_subdev_ops imx219_subdev_ops = { -+ .core = &imx219_core_ops, -+ .video = &imx219_video_ops, -+ .pad = &imx219_pad_ops, -+}; -+ -+static const struct v4l2_subdev_internal_ops imx219_internal_ops = { -+ .open = imx219_open, -+}; -+ -+/* Initialize control handlers */ -+static int imx219_init_controls(struct imx219 *imx219) -+{ -+ struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); -+ struct v4l2_ctrl_handler *ctrl_hdlr; -+ int ret; -+ -+ ctrl_hdlr = &imx219->ctrl_handler; -+ ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8); -+ if (ret) -+ return ret; -+ -+ mutex_init(&imx219->mutex); -+ ctrl_hdlr->lock = &imx219->mutex; -+ -+ imx219->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, -+ V4L2_CID_EXPOSURE, -+ IMX219_EXPOSURE_MIN, -+ IMX219_EXPOSURE_MAX, -+ IMX219_EXPOSURE_STEP, -+ IMX219_EXPOSURE_DEFAULT); -+ -+ v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, -+ IMX219_ANA_GAIN_MIN, IMX219_ANA_GAIN_MAX, -+ IMX219_ANA_GAIN_STEP, IMX219_ANA_GAIN_DEFAULT); -+ -+ v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, V4L2_CID_DIGITAL_GAIN, -+ IMX219_DGTL_GAIN_MIN, IMX219_DGTL_GAIN_MAX, -+ IMX219_DGTL_GAIN_STEP, IMX219_DGTL_GAIN_DEFAULT); -+ -+ v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx219_ctrl_ops, -+ V4L2_CID_TEST_PATTERN, -+ ARRAY_SIZE(imx219_test_pattern_menu) - 1, -+ 0, 0, imx219_test_pattern_menu); -+ -+ if (ctrl_hdlr->error) { -+ ret = ctrl_hdlr->error; -+ dev_err(&client->dev, "%s control init failed (%d)\n", -+ __func__, ret); -+ goto error; -+ } -+ -+ imx219->sd.ctrl_handler = ctrl_hdlr; -+ -+ return 0; -+ -+error: -+ v4l2_ctrl_handler_free(ctrl_hdlr); -+ mutex_destroy(&imx219->mutex); -+ -+ return ret; -+} -+ -+static void imx219_free_controls(struct imx219 *imx219) -+{ -+ v4l2_ctrl_handler_free(imx219->sd.ctrl_handler); -+ mutex_destroy(&imx219->mutex); -+} -+ -+static int imx219_probe(struct i2c_client *client, -+ const struct i2c_device_id *id) -+{ -+ struct device *dev = &client->dev; -+ struct fwnode_handle *endpoint; -+ struct imx219 *imx219; -+ int ret; -+ -+ imx219 = devm_kzalloc(&client->dev, sizeof(*imx219), GFP_KERNEL); -+ if (!imx219) -+ return -ENOMEM; -+ -+ /* Initialize subdev */ -+ v4l2_i2c_subdev_init(&imx219->sd, client, &imx219_subdev_ops); -+ -+ /* Get CSI2 bus config */ -+ endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev), -+ NULL); -+ if (!endpoint) { -+ dev_err(dev, "endpoint node not found\n"); -+ return -EINVAL; -+ } -+ -+ ret = v4l2_fwnode_endpoint_parse(endpoint, &imx219->ep); -+ fwnode_handle_put(endpoint); -+ if (ret) { -+ dev_err(dev, "Could not parse endpoint\n"); -+ return ret; -+ } -+ -+ /* Get system clock (xclk) */ -+ imx219->xclk = devm_clk_get(dev, "xclk"); -+ if (IS_ERR(imx219->xclk)) { -+ dev_err(dev, "failed to get xclk\n"); -+ return PTR_ERR(imx219->xclk); -+ } -+ -+ imx219->xclk_freq = clk_get_rate(imx219->xclk); -+ if (imx219->xclk_freq != 24000000) { -+ dev_err(dev, "xclk frequency not supported: %d Hz\n", -+ imx219->xclk_freq); -+ return -EINVAL; -+ } -+ -+ ret = imx219_get_regulators(imx219); -+ if (ret) -+ return ret; -+ -+ /* request optional power down pin */ -+ imx219->xclr_gpio = devm_gpiod_get_optional(dev, "xclr", -+ GPIOD_OUT_HIGH); -+ -+ /* Check module identity */ -+ ret = imx219_identify_module(imx219); -+ if (ret) -+ return ret; -+ -+ /* Set default mode to max resolution */ -+ imx219->mode = &supported_modes[0]; -+ -+ ret = imx219_init_controls(imx219); -+ if (ret) -+ return ret; -+ -+ /* Initialize subdev */ -+ imx219->sd.internal_ops = &imx219_internal_ops; -+ imx219->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; -+ imx219->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; -+ -+ /* Initialize source pad */ -+ imx219->pad.flags = MEDIA_PAD_FL_SOURCE; -+ -+ ret = media_entity_pads_init(&imx219->sd.entity, 1, &imx219->pad); -+ if (ret) -+ goto error_handler_free; -+ -+ ret = v4l2_async_register_subdev_sensor_common(&imx219->sd); -+ if (ret < 0) -+ goto error_media_entity; -+ -+ pm_runtime_set_active(&client->dev); -+ pm_runtime_enable(&client->dev); -+ pm_runtime_idle(&client->dev); -+ -+ return 0; -+ -+error_media_entity: -+ media_entity_cleanup(&imx219->sd.entity); -+ -+error_handler_free: -+ imx219_free_controls(imx219); -+ -+ return ret; -+} -+ -+static int imx219_remove(struct i2c_client *client) -+{ -+ struct v4l2_subdev *sd = i2c_get_clientdata(client); -+ struct imx219 *imx219 = to_imx219(sd); -+ -+ v4l2_async_unregister_subdev(sd); -+ media_entity_cleanup(&sd->entity); -+ imx219_free_controls(imx219); -+ -+ pm_runtime_disable(&client->dev); -+ pm_runtime_set_suspended(&client->dev); -+ -+ return 0; -+} -+ -+static const struct of_device_id imx219_dt_ids[] = { -+ { .compatible = "sony,imx219" }, -+ { /* sentinel */ } -+}; -+MODULE_DEVICE_TABLE(of, imx219_dt_ids); -+ -+static struct i2c_driver imx219_i2c_driver = { -+ .driver = { -+ .name = "imx219", -+ .of_match_table = imx219_dt_ids, -+ }, -+ .probe = imx219_probe, -+ .remove = imx219_remove, -+}; -+ -+module_i2c_driver(imx219_i2c_driver); -+ -+MODULE_AUTHOR("Dave Stevenson <dave.stevenson@raspberrypi.org"); -+MODULE_DESCRIPTION("Sony IMX219 sensor driver"); -+MODULE_LICENSE("GPL v2"); |