diff options
Diffstat (limited to 'drivers/staging/media')
-rw-r--r-- | drivers/staging/media/Kconfig | 2 | ||||
-rw-r--r-- | drivers/staging/media/Makefile | 1 | ||||
-rw-r--r-- | drivers/staging/media/imx074/Kconfig | 5 | ||||
-rw-r--r-- | drivers/staging/media/imx074/Makefile | 1 | ||||
-rw-r--r-- | drivers/staging/media/imx074/TODO | 5 | ||||
-rw-r--r-- | drivers/staging/media/imx074/imx074.c | 497 |
6 files changed, 511 insertions, 0 deletions
diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig index e68e1d3..9afdb2e 100644 --- a/drivers/staging/media/Kconfig +++ b/drivers/staging/media/Kconfig @@ -29,6 +29,8 @@ source "drivers/staging/media/davinci_vpfe/Kconfig" source "drivers/staging/media/imx/Kconfig" +source "drivers/staging/media/imx074/Kconfig" + source "drivers/staging/media/omap4iss/Kconfig" source "drivers/staging/media/tegra-vde/Kconfig" diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile index 59a47f6..9958466 100644 --- a/drivers/staging/media/Makefile +++ b/drivers/staging/media/Makefile @@ -2,6 +2,7 @@ obj-$(CONFIG_I2C_BCM2048) += bcm2048/ obj-$(CONFIG_DVB_CXD2099) += cxd2099/ obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx/ +obj-$(CONFIG_SOC_CAMERA_IMX074) += imx074/ obj-$(CONFIG_VIDEO_DM365_VPFE) += davinci_vpfe/ obj-$(CONFIG_VIDEO_OMAP4) += omap4iss/ obj-$(CONFIG_INTEL_ATOMISP) += atomisp/ diff --git a/drivers/staging/media/imx074/Kconfig b/drivers/staging/media/imx074/Kconfig new file mode 100644 index 0000000..229cbee --- /dev/null +++ b/drivers/staging/media/imx074/Kconfig @@ -0,0 +1,5 @@ +config SOC_CAMERA_IMX074 + tristate "imx074 support (DEPRECATED)" + depends on SOC_CAMERA && I2C + help + This driver supports IMX074 cameras from Sony diff --git a/drivers/staging/media/imx074/Makefile b/drivers/staging/media/imx074/Makefile new file mode 100644 index 0000000..7d18357 --- /dev/null +++ b/drivers/staging/media/imx074/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_SOC_CAMERA_IMX074) += imx074.o diff --git a/drivers/staging/media/imx074/TODO b/drivers/staging/media/imx074/TODO new file mode 100644 index 0000000..15580a4 --- /dev/null +++ b/drivers/staging/media/imx074/TODO @@ -0,0 +1,5 @@ +This sensor driver needs to be converted to a regular +v4l2 subdev driver. The soc_camera framework is deprecated and +will be removed in the future. Unless someone does this work this +sensor driver will be deleted when the soc_camera framework is +deleted. diff --git a/drivers/staging/media/imx074/imx074.c b/drivers/staging/media/imx074/imx074.c new file mode 100644 index 0000000..77f1e02 --- /dev/null +++ b/drivers/staging/media/imx074/imx074.c @@ -0,0 +1,497 @@ +/* + * Driver for IMX074 CMOS Image Sensor from Sony + * + * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de> + * + * Partially inspired by the IMX074 driver from the Android / MSM tree + * + * 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/i2c.h> +#include <linux/v4l2-mediabus.h> +#include <linux/slab.h> +#include <linux/videodev2.h> +#include <linux/module.h> + +#include <media/soc_camera.h> +#include <media/v4l2-async.h> +#include <media/v4l2-clk.h> +#include <media/v4l2-subdev.h> + +/* IMX074 registers */ + +#define MODE_SELECT 0x0100 +#define IMAGE_ORIENTATION 0x0101 +#define GROUPED_PARAMETER_HOLD 0x0104 + +/* Integration Time */ +#define COARSE_INTEGRATION_TIME_HI 0x0202 +#define COARSE_INTEGRATION_TIME_LO 0x0203 +/* Gain */ +#define ANALOGUE_GAIN_CODE_GLOBAL_HI 0x0204 +#define ANALOGUE_GAIN_CODE_GLOBAL_LO 0x0205 + +/* PLL registers */ +#define PRE_PLL_CLK_DIV 0x0305 +#define PLL_MULTIPLIER 0x0307 +#define PLSTATIM 0x302b +#define VNDMY_ABLMGSHLMT 0x300a +#define Y_OPBADDR_START_DI 0x3014 +/* mode setting */ +#define FRAME_LENGTH_LINES_HI 0x0340 +#define FRAME_LENGTH_LINES_LO 0x0341 +#define LINE_LENGTH_PCK_HI 0x0342 +#define LINE_LENGTH_PCK_LO 0x0343 +#define YADDR_START 0x0347 +#define YADDR_END 0x034b +#define X_OUTPUT_SIZE_MSB 0x034c +#define X_OUTPUT_SIZE_LSB 0x034d +#define Y_OUTPUT_SIZE_MSB 0x034e +#define Y_OUTPUT_SIZE_LSB 0x034f +#define X_EVEN_INC 0x0381 +#define X_ODD_INC 0x0383 +#define Y_EVEN_INC 0x0385 +#define Y_ODD_INC 0x0387 + +#define HMODEADD 0x3001 +#define VMODEADD 0x3016 +#define VAPPLINE_START 0x3069 +#define VAPPLINE_END 0x306b +#define SHUTTER 0x3086 +#define HADDAVE 0x30e8 +#define LANESEL 0x3301 + +/* IMX074 supported geometry */ +#define IMX074_WIDTH 1052 +#define IMX074_HEIGHT 780 + +/* IMX074 has only one fixed colorspace per pixelcode */ +struct imx074_datafmt { + u32 code; + enum v4l2_colorspace colorspace; +}; + +struct imx074 { + struct v4l2_subdev subdev; + const struct imx074_datafmt *fmt; + struct v4l2_clk *clk; +}; + +static const struct imx074_datafmt imx074_colour_fmts[] = { + {MEDIA_BUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB}, +}; + +static struct imx074 *to_imx074(const struct i2c_client *client) +{ + return container_of(i2c_get_clientdata(client), struct imx074, subdev); +} + +/* Find a data format by a pixel code in an array */ +static const struct imx074_datafmt *imx074_find_datafmt(u32 code) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(imx074_colour_fmts); i++) + if (imx074_colour_fmts[i].code == code) + return imx074_colour_fmts + i; + + return NULL; +} + +static int reg_write(struct i2c_client *client, const u16 addr, const u8 data) +{ + struct i2c_adapter *adap = client->adapter; + struct i2c_msg msg; + unsigned char tx[3]; + int ret; + + msg.addr = client->addr; + msg.buf = tx; + msg.len = 3; + msg.flags = 0; + + tx[0] = addr >> 8; + tx[1] = addr & 0xff; + tx[2] = data; + + ret = i2c_transfer(adap, &msg, 1); + + mdelay(2); + + return ret == 1 ? 0 : -EIO; +} + +static int reg_read(struct i2c_client *client, const u16 addr) +{ + u8 buf[2] = {addr >> 8, addr & 0xff}; + int ret; + struct i2c_msg msgs[] = { + { + .addr = client->addr, + .flags = 0, + .len = 2, + .buf = buf, + }, { + .addr = client->addr, + .flags = I2C_M_RD, + .len = 2, + .buf = buf, + }, + }; + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret < 0) { + dev_warn(&client->dev, "Reading register %x from %x failed\n", + addr, client->addr); + return ret; + } + + return buf[0] & 0xff; /* no sign-extension */ +} + +static int imx074_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + const struct imx074_datafmt *fmt = imx074_find_datafmt(mf->code); + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct imx074 *priv = to_imx074(client); + + if (format->pad) + return -EINVAL; + + dev_dbg(sd->v4l2_dev->dev, "%s(%u)\n", __func__, mf->code); + + if (!fmt) { + /* MIPI CSI could have changed the format, double-check */ + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + mf->code = imx074_colour_fmts[0].code; + mf->colorspace = imx074_colour_fmts[0].colorspace; + } + + mf->width = IMX074_WIDTH; + mf->height = IMX074_HEIGHT; + mf->field = V4L2_FIELD_NONE; + + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) + priv->fmt = fmt; + else + cfg->try_fmt = *mf; + + return 0; +} + +static int imx074_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *mf = &format->format; + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct imx074 *priv = to_imx074(client); + + const struct imx074_datafmt *fmt = priv->fmt; + + if (format->pad) + return -EINVAL; + + mf->code = fmt->code; + mf->colorspace = fmt->colorspace; + mf->width = IMX074_WIDTH; + mf->height = IMX074_HEIGHT; + mf->field = V4L2_FIELD_NONE; + + return 0; +} + +static int imx074_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) + return -EINVAL; + + sel->r.left = 0; + sel->r.top = 0; + sel->r.width = IMX074_WIDTH; + sel->r.height = IMX074_HEIGHT; + + switch (sel->target) { + case V4L2_SEL_TGT_CROP_BOUNDS: + case V4L2_SEL_TGT_CROP_DEFAULT: + case V4L2_SEL_TGT_CROP: + return 0; + default: + return -EINVAL; + } +} + +static int imx074_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->pad || + (unsigned int)code->index >= ARRAY_SIZE(imx074_colour_fmts)) + return -EINVAL; + + code->code = imx074_colour_fmts[code->index].code; + return 0; +} + +static int imx074_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + /* MODE_SELECT: stream or standby */ + return reg_write(client, MODE_SELECT, !!enable); +} + +static int imx074_s_power(struct v4l2_subdev *sd, int on) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct imx074 *priv = to_imx074(client); + + return soc_camera_set_power(&client->dev, ssdd, priv->clk, on); +} + +static int imx074_g_mbus_config(struct v4l2_subdev *sd, + struct v4l2_mbus_config *cfg) +{ + cfg->type = V4L2_MBUS_CSI2; + cfg->flags = V4L2_MBUS_CSI2_2_LANE | + V4L2_MBUS_CSI2_CHANNEL_0 | + V4L2_MBUS_CSI2_CONTINUOUS_CLOCK; + + return 0; +} + +static const struct v4l2_subdev_video_ops imx074_subdev_video_ops = { + .s_stream = imx074_s_stream, + .g_mbus_config = imx074_g_mbus_config, +}; + +static const struct v4l2_subdev_core_ops imx074_subdev_core_ops = { + .s_power = imx074_s_power, +}; + +static const struct v4l2_subdev_pad_ops imx074_subdev_pad_ops = { + .enum_mbus_code = imx074_enum_mbus_code, + .get_selection = imx074_get_selection, + .get_fmt = imx074_get_fmt, + .set_fmt = imx074_set_fmt, +}; + +static const struct v4l2_subdev_ops imx074_subdev_ops = { + .core = &imx074_subdev_core_ops, + .video = &imx074_subdev_video_ops, + .pad = &imx074_subdev_pad_ops, +}; + +static int imx074_video_probe(struct i2c_client *client) +{ + struct v4l2_subdev *subdev = i2c_get_clientdata(client); + int ret; + u16 id; + + ret = imx074_s_power(subdev, 1); + if (ret < 0) + return ret; + + /* Read sensor Model ID */ + ret = reg_read(client, 0); + if (ret < 0) + goto done; + + id = ret << 8; + + ret = reg_read(client, 1); + if (ret < 0) + goto done; + + id |= ret; + + dev_info(&client->dev, "Chip ID 0x%04x detected\n", id); + + if (id != 0x74) { + ret = -ENODEV; + goto done; + } + + /* PLL Setting EXTCLK=24MHz, 22.5times */ + reg_write(client, PLL_MULTIPLIER, 0x2D); + reg_write(client, PRE_PLL_CLK_DIV, 0x02); + reg_write(client, PLSTATIM, 0x4B); + + /* 2-lane mode */ + reg_write(client, 0x3024, 0x00); + + reg_write(client, IMAGE_ORIENTATION, 0x00); + + /* select RAW mode: + * 0x08+0x08 = top 8 bits + * 0x0a+0x08 = compressed 8-bits + * 0x0a+0x0a = 10 bits + */ + reg_write(client, 0x0112, 0x08); + reg_write(client, 0x0113, 0x08); + + /* Base setting for High frame mode */ + reg_write(client, VNDMY_ABLMGSHLMT, 0x80); + reg_write(client, Y_OPBADDR_START_DI, 0x08); + reg_write(client, 0x3015, 0x37); + reg_write(client, 0x301C, 0x01); + reg_write(client, 0x302C, 0x05); + reg_write(client, 0x3031, 0x26); + reg_write(client, 0x3041, 0x60); + reg_write(client, 0x3051, 0x24); + reg_write(client, 0x3053, 0x34); + reg_write(client, 0x3057, 0xC0); + reg_write(client, 0x305C, 0x09); + reg_write(client, 0x305D, 0x07); + reg_write(client, 0x3060, 0x30); + reg_write(client, 0x3065, 0x00); + reg_write(client, 0x30AA, 0x08); + reg_write(client, 0x30AB, 0x1C); + reg_write(client, 0x30B0, 0x32); + reg_write(client, 0x30B2, 0x83); + reg_write(client, 0x30D3, 0x04); + reg_write(client, 0x3106, 0x78); + reg_write(client, 0x310C, 0x82); + reg_write(client, 0x3304, 0x05); + reg_write(client, 0x3305, 0x04); + reg_write(client, 0x3306, 0x11); + reg_write(client, 0x3307, 0x02); + reg_write(client, 0x3308, 0x0C); + reg_write(client, 0x3309, 0x06); + reg_write(client, 0x330A, 0x08); + reg_write(client, 0x330B, 0x04); + reg_write(client, 0x330C, 0x08); + reg_write(client, 0x330D, 0x06); + reg_write(client, 0x330E, 0x01); + reg_write(client, 0x3381, 0x00); + + /* V : 1/2V-addition (1,3), H : 1/2H-averaging (1,3) -> Full HD */ + /* 1608 = 1560 + 48 (black lines) */ + reg_write(client, FRAME_LENGTH_LINES_HI, 0x06); + reg_write(client, FRAME_LENGTH_LINES_LO, 0x48); + reg_write(client, YADDR_START, 0x00); + reg_write(client, YADDR_END, 0x2F); + /* 0x838 == 2104 */ + reg_write(client, X_OUTPUT_SIZE_MSB, 0x08); + reg_write(client, X_OUTPUT_SIZE_LSB, 0x38); + /* 0x618 == 1560 */ + reg_write(client, Y_OUTPUT_SIZE_MSB, 0x06); + reg_write(client, Y_OUTPUT_SIZE_LSB, 0x18); + reg_write(client, X_EVEN_INC, 0x01); + reg_write(client, X_ODD_INC, 0x03); + reg_write(client, Y_EVEN_INC, 0x01); + reg_write(client, Y_ODD_INC, 0x03); + reg_write(client, HMODEADD, 0x00); + reg_write(client, VMODEADD, 0x16); + reg_write(client, VAPPLINE_START, 0x24); + reg_write(client, VAPPLINE_END, 0x53); + reg_write(client, SHUTTER, 0x00); + reg_write(client, HADDAVE, 0x80); + + reg_write(client, LANESEL, 0x00); + + reg_write(client, GROUPED_PARAMETER_HOLD, 0x00); /* off */ + + ret = 0; + +done: + imx074_s_power(subdev, 0); + return ret; +} + +static int imx074_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct imx074 *priv; + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + int ret; + + if (!ssdd) { + dev_err(&client->dev, "IMX074: missing platform data!\n"); + return -EINVAL; + } + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { + dev_warn(&adapter->dev, + "I2C-Adapter doesn't support I2C_FUNC_SMBUS_BYTE\n"); + return -EIO; + } + + priv = devm_kzalloc(&client->dev, sizeof(struct imx074), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + v4l2_i2c_subdev_init(&priv->subdev, client, &imx074_subdev_ops); + + priv->fmt = &imx074_colour_fmts[0]; + + priv->clk = v4l2_clk_get(&client->dev, "mclk"); + if (IS_ERR(priv->clk)) { + dev_info(&client->dev, "Error %ld getting clock\n", PTR_ERR(priv->clk)); + return -EPROBE_DEFER; + } + + ret = soc_camera_power_init(&client->dev, ssdd); + if (ret < 0) + goto epwrinit; + + ret = imx074_video_probe(client); + if (ret < 0) + goto eprobe; + + ret = v4l2_async_register_subdev(&priv->subdev); + if (!ret) + return 0; + +epwrinit: +eprobe: + v4l2_clk_put(priv->clk); + return ret; +} + +static int imx074_remove(struct i2c_client *client) +{ + struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client); + struct imx074 *priv = to_imx074(client); + + v4l2_async_unregister_subdev(&priv->subdev); + v4l2_clk_put(priv->clk); + + if (ssdd->free_bus) + ssdd->free_bus(ssdd); + + return 0; +} + +static const struct i2c_device_id imx074_id[] = { + { "imx074", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, imx074_id); + +static struct i2c_driver imx074_i2c_driver = { + .driver = { + .name = "imx074", + }, + .probe = imx074_probe, + .remove = imx074_remove, + .id_table = imx074_id, +}; + +module_i2c_driver(imx074_i2c_driver); + +MODULE_DESCRIPTION("Sony IMX074 Camera driver"); +MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); +MODULE_LICENSE("GPL v2"); |