+++ /dev/null
-/*
- * tw9910 Video Driver
- *
- * Copyright (C) 2008 Renesas Solutions Corp.
- * Kuninori Morimoto <morimoto.kuninori@renesas.com>
- *
- * Based on ov772x driver,
- *
- * Copyright (C) 2008 Kuninori Morimoto <morimoto.kuninori@renesas.com>
- * Copyright 2006-7 Jonathan Corbet <corbet@lwn.net>
- * Copyright (C) 2008 Magnus Damm
- * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
- *
- * 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/init.h>
-#include <linux/module.h>
-#include <linux/i2c.h>
-#include <linux/slab.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/v4l2-mediabus.h>
-#include <linux/videodev2.h>
-
-#include <media/soc_camera.h>
-#include <media/i2c/tw9910.h>
-#include <media/v4l2-clk.h>
-#include <media/v4l2-subdev.h>
-
-#define GET_ID(val) ((val & 0xF8) >> 3)
-#define GET_REV(val) (val & 0x07)
-
-/*
- * register offset
- */
-#define ID 0x00 /* Product ID Code Register */
-#define STATUS1 0x01 /* Chip Status Register I */
-#define INFORM 0x02 /* Input Format */
-#define OPFORM 0x03 /* Output Format Control Register */
-#define DLYCTR 0x04 /* Hysteresis and HSYNC Delay Control */
-#define OUTCTR1 0x05 /* Output Control I */
-#define ACNTL1 0x06 /* Analog Control Register 1 */
-#define CROP_HI 0x07 /* Cropping Register, High */
-#define VDELAY_LO 0x08 /* Vertical Delay Register, Low */
-#define VACTIVE_LO 0x09 /* Vertical Active Register, Low */
-#define HDELAY_LO 0x0A /* Horizontal Delay Register, Low */
-#define HACTIVE_LO 0x0B /* Horizontal Active Register, Low */
-#define CNTRL1 0x0C /* Control Register I */
-#define VSCALE_LO 0x0D /* Vertical Scaling Register, Low */
-#define SCALE_HI 0x0E /* Scaling Register, High */
-#define HSCALE_LO 0x0F /* Horizontal Scaling Register, Low */
-#define BRIGHT 0x10 /* BRIGHTNESS Control Register */
-#define CONTRAST 0x11 /* CONTRAST Control Register */
-#define SHARPNESS 0x12 /* SHARPNESS Control Register I */
-#define SAT_U 0x13 /* Chroma (U) Gain Register */
-#define SAT_V 0x14 /* Chroma (V) Gain Register */
-#define HUE 0x15 /* Hue Control Register */
-#define CORING1 0x17
-#define CORING2 0x18 /* Coring and IF compensation */
-#define VBICNTL 0x19 /* VBI Control Register */
-#define ACNTL2 0x1A /* Analog Control 2 */
-#define OUTCTR2 0x1B /* Output Control 2 */
-#define SDT 0x1C /* Standard Selection */
-#define SDTR 0x1D /* Standard Recognition */
-#define TEST 0x1F /* Test Control Register */
-#define CLMPG 0x20 /* Clamping Gain */
-#define IAGC 0x21 /* Individual AGC Gain */
-#define AGCGAIN 0x22 /* AGC Gain */
-#define PEAKWT 0x23 /* White Peak Threshold */
-#define CLMPL 0x24 /* Clamp level */
-#define SYNCT 0x25 /* Sync Amplitude */
-#define MISSCNT 0x26 /* Sync Miss Count Register */
-#define PCLAMP 0x27 /* Clamp Position Register */
-#define VCNTL1 0x28 /* Vertical Control I */
-#define VCNTL2 0x29 /* Vertical Control II */
-#define CKILL 0x2A /* Color Killer Level Control */
-#define COMB 0x2B /* Comb Filter Control */
-#define LDLY 0x2C /* Luma Delay and H Filter Control */
-#define MISC1 0x2D /* Miscellaneous Control I */
-#define LOOP 0x2E /* LOOP Control Register */
-#define MISC2 0x2F /* Miscellaneous Control II */
-#define MVSN 0x30 /* Macrovision Detection */
-#define STATUS2 0x31 /* Chip STATUS II */
-#define HFREF 0x32 /* H monitor */
-#define CLMD 0x33 /* CLAMP MODE */
-#define IDCNTL 0x34 /* ID Detection Control */
-#define CLCNTL1 0x35 /* Clamp Control I */
-#define ANAPLLCTL 0x4C
-#define VBIMIN 0x4D
-#define HSLOWCTL 0x4E
-#define WSS3 0x4F
-#define FILLDATA 0x50
-#define SDID 0x51
-#define DID 0x52
-#define WSS1 0x53
-#define WSS2 0x54
-#define VVBI 0x55
-#define LCTL6 0x56
-#define LCTL7 0x57
-#define LCTL8 0x58
-#define LCTL9 0x59
-#define LCTL10 0x5A
-#define LCTL11 0x5B
-#define LCTL12 0x5C
-#define LCTL13 0x5D
-#define LCTL14 0x5E
-#define LCTL15 0x5F
-#define LCTL16 0x60
-#define LCTL17 0x61
-#define LCTL18 0x62
-#define LCTL19 0x63
-#define LCTL20 0x64
-#define LCTL21 0x65
-#define LCTL22 0x66
-#define LCTL23 0x67
-#define LCTL24 0x68
-#define LCTL25 0x69
-#define LCTL26 0x6A
-#define HSBEGIN 0x6B
-#define HSEND 0x6C
-#define OVSDLY 0x6D
-#define OVSEND 0x6E
-#define VBIDELAY 0x6F
-
-/*
- * register detail
- */
-
-/* INFORM */
-#define FC27_ON 0x40 /* 1 : Input crystal clock frequency is 27MHz */
-#define FC27_FF 0x00 /* 0 : Square pixel mode. */
- /* Must use 24.54MHz for 60Hz field rate */
- /* source or 29.5MHz for 50Hz field rate */
-#define IFSEL_S 0x10 /* 01 : S-video decoding */
-#define IFSEL_C 0x00 /* 00 : Composite video decoding */
- /* Y input video selection */
-#define YSEL_M0 0x00 /* 00 : Mux0 selected */
-#define YSEL_M1 0x04 /* 01 : Mux1 selected */
-#define YSEL_M2 0x08 /* 10 : Mux2 selected */
-#define YSEL_M3 0x10 /* 11 : Mux3 selected */
-
-/* OPFORM */
-#define MODE 0x80 /* 0 : CCIR601 compatible YCrCb 4:2:2 format */
- /* 1 : ITU-R-656 compatible data sequence format */
-#define LEN 0x40 /* 0 : 8-bit YCrCb 4:2:2 output format */
- /* 1 : 16-bit YCrCb 4:2:2 output format.*/
-#define LLCMODE 0x20 /* 1 : LLC output mode. */
- /* 0 : free-run output mode */
-#define AINC 0x10 /* Serial interface auto-indexing control */
- /* 0 : auto-increment */
- /* 1 : non-auto */
-#define VSCTL 0x08 /* 1 : Vertical out ctrl by DVALID */
- /* 0 : Vertical out ctrl by HACTIVE and DVALID */
-#define OEN_TRI_SEL_MASK 0x07
-#define OEN_TRI_SEL_ALL_ON 0x00 /* Enable output for Rev0/Rev1 */
-#define OEN_TRI_SEL_ALL_OFF_r0 0x06 /* All tri-stated for Rev0 */
-#define OEN_TRI_SEL_ALL_OFF_r1 0x07 /* All tri-stated for Rev1 */
-
-/* OUTCTR1 */
-#define VSP_LO 0x00 /* 0 : VS pin output polarity is active low */
-#define VSP_HI 0x80 /* 1 : VS pin output polarity is active high. */
- /* VS pin output control */
-#define VSSL_VSYNC 0x00 /* 0 : VSYNC */
-#define VSSL_VACT 0x10 /* 1 : VACT */
-#define VSSL_FIELD 0x20 /* 2 : FIELD */
-#define VSSL_VVALID 0x30 /* 3 : VVALID */
-#define VSSL_ZERO 0x70 /* 7 : 0 */
-#define HSP_LOW 0x00 /* 0 : HS pin output polarity is active low */
-#define HSP_HI 0x08 /* 1 : HS pin output polarity is active high.*/
- /* HS pin output control */
-#define HSSL_HACT 0x00 /* 0 : HACT */
-#define HSSL_HSYNC 0x01 /* 1 : HSYNC */
-#define HSSL_DVALID 0x02 /* 2 : DVALID */
-#define HSSL_HLOCK 0x03 /* 3 : HLOCK */
-#define HSSL_ASYNCW 0x04 /* 4 : ASYNCW */
-#define HSSL_ZERO 0x07 /* 7 : 0 */
-
-/* ACNTL1 */
-#define SRESET 0x80 /* resets the device to its default state
- * but all register content remain unchanged.
- * This bit is self-resetting.
- */
-#define ACNTL1_PDN_MASK 0x0e
-#define CLK_PDN 0x08 /* system clock power down */
-#define Y_PDN 0x04 /* Luma ADC power down */
-#define C_PDN 0x02 /* Chroma ADC power down */
-
-/* ACNTL2 */
-#define ACNTL2_PDN_MASK 0x40
-#define PLL_PDN 0x40 /* PLL power down */
-
-/* VBICNTL */
-
-/* RTSEL : control the real time signal output from the MPOUT pin */
-#define RTSEL_MASK 0x07
-#define RTSEL_VLOSS 0x00 /* 0000 = Video loss */
-#define RTSEL_HLOCK 0x01 /* 0001 = H-lock */
-#define RTSEL_SLOCK 0x02 /* 0010 = S-lock */
-#define RTSEL_VLOCK 0x03 /* 0011 = V-lock */
-#define RTSEL_MONO 0x04 /* 0100 = MONO */
-#define RTSEL_DET50 0x05 /* 0101 = DET50 */
-#define RTSEL_FIELD 0x06 /* 0110 = FIELD */
-#define RTSEL_RTCO 0x07 /* 0111 = RTCO ( Real Time Control ) */
-
-/* HSYNC start and end are constant for now */
-#define HSYNC_START 0x0260
-#define HSYNC_END 0x0300
-
-/*
- * structure
- */
-
-struct regval_list {
- unsigned char reg_num;
- unsigned char value;
-};
-
-struct tw9910_scale_ctrl {
- char *name;
- unsigned short width;
- unsigned short height;
- u16 hscale;
- u16 vscale;
-};
-
-struct tw9910_priv {
- struct v4l2_subdev subdev;
- struct v4l2_clk *clk;
- struct tw9910_video_info *info;
- const struct tw9910_scale_ctrl *scale;
- v4l2_std_id norm;
- u32 revision;
-};
-
-static const struct tw9910_scale_ctrl tw9910_ntsc_scales[] = {
- {
- .name = "NTSC SQ",
- .width = 640,
- .height = 480,
- .hscale = 0x0100,
- .vscale = 0x0100,
- },
- {
- .name = "NTSC CCIR601",
- .width = 720,
- .height = 480,
- .hscale = 0x0100,
- .vscale = 0x0100,
- },
- {
- .name = "NTSC SQ (CIF)",
- .width = 320,
- .height = 240,
- .hscale = 0x0200,
- .vscale = 0x0200,
- },
- {
- .name = "NTSC CCIR601 (CIF)",
- .width = 360,
- .height = 240,
- .hscale = 0x0200,
- .vscale = 0x0200,
- },
- {
- .name = "NTSC SQ (QCIF)",
- .width = 160,
- .height = 120,
- .hscale = 0x0400,
- .vscale = 0x0400,
- },
- {
- .name = "NTSC CCIR601 (QCIF)",
- .width = 180,
- .height = 120,
- .hscale = 0x0400,
- .vscale = 0x0400,
- },
-};
-
-static const struct tw9910_scale_ctrl tw9910_pal_scales[] = {
- {
- .name = "PAL SQ",
- .width = 768,
- .height = 576,
- .hscale = 0x0100,
- .vscale = 0x0100,
- },
- {
- .name = "PAL CCIR601",
- .width = 720,
- .height = 576,
- .hscale = 0x0100,
- .vscale = 0x0100,
- },
- {
- .name = "PAL SQ (CIF)",
- .width = 384,
- .height = 288,
- .hscale = 0x0200,
- .vscale = 0x0200,
- },
- {
- .name = "PAL CCIR601 (CIF)",
- .width = 360,
- .height = 288,
- .hscale = 0x0200,
- .vscale = 0x0200,
- },
- {
- .name = "PAL SQ (QCIF)",
- .width = 192,
- .height = 144,
- .hscale = 0x0400,
- .vscale = 0x0400,
- },
- {
- .name = "PAL CCIR601 (QCIF)",
- .width = 180,
- .height = 144,
- .hscale = 0x0400,
- .vscale = 0x0400,
- },
-};
-
-/*
- * general function
- */
-static struct tw9910_priv *to_tw9910(const struct i2c_client *client)
-{
- return container_of(i2c_get_clientdata(client), struct tw9910_priv,
- subdev);
-}
-
-static int tw9910_mask_set(struct i2c_client *client, u8 command,
- u8 mask, u8 set)
-{
- s32 val = i2c_smbus_read_byte_data(client, command);
- if (val < 0)
- return val;
-
- val &= ~mask;
- val |= set & mask;
-
- return i2c_smbus_write_byte_data(client, command, val);
-}
-
-static int tw9910_set_scale(struct i2c_client *client,
- const struct tw9910_scale_ctrl *scale)
-{
- int ret;
-
- ret = i2c_smbus_write_byte_data(client, SCALE_HI,
- (scale->vscale & 0x0F00) >> 4 |
- (scale->hscale & 0x0F00) >> 8);
- if (ret < 0)
- return ret;
-
- ret = i2c_smbus_write_byte_data(client, HSCALE_LO,
- scale->hscale & 0x00FF);
- if (ret < 0)
- return ret;
-
- ret = i2c_smbus_write_byte_data(client, VSCALE_LO,
- scale->vscale & 0x00FF);
-
- return ret;
-}
-
-static int tw9910_set_hsync(struct i2c_client *client)
-{
- struct tw9910_priv *priv = to_tw9910(client);
- int ret;
-
- /* bit 10 - 3 */
- ret = i2c_smbus_write_byte_data(client, HSBEGIN,
- (HSYNC_START & 0x07F8) >> 3);
- if (ret < 0)
- return ret;
-
- /* bit 10 - 3 */
- ret = i2c_smbus_write_byte_data(client, HSEND,
- (HSYNC_END & 0x07F8) >> 3);
- if (ret < 0)
- return ret;
-
- /* So far only revisions 0 and 1 have been seen */
- /* bit 2 - 0 */
- if (1 == priv->revision)
- ret = tw9910_mask_set(client, HSLOWCTL, 0x77,
- (HSYNC_START & 0x0007) << 4 |
- (HSYNC_END & 0x0007));
-
- return ret;
-}
-
-static void tw9910_reset(struct i2c_client *client)
-{
- tw9910_mask_set(client, ACNTL1, SRESET, SRESET);
- msleep(1);
-}
-
-static int tw9910_power(struct i2c_client *client, int enable)
-{
- int ret;
- u8 acntl1;
- u8 acntl2;
-
- if (enable) {
- acntl1 = 0;
- acntl2 = 0;
- } else {
- acntl1 = CLK_PDN | Y_PDN | C_PDN;
- acntl2 = PLL_PDN;
- }
-
- ret = tw9910_mask_set(client, ACNTL1, ACNTL1_PDN_MASK, acntl1);
- if (ret < 0)
- return ret;
-
- return tw9910_mask_set(client, ACNTL2, ACNTL2_PDN_MASK, acntl2);
-}
-
-static const struct tw9910_scale_ctrl *tw9910_select_norm(v4l2_std_id norm,
- u32 width, u32 height)
-{
- const struct tw9910_scale_ctrl *scale;
- const struct tw9910_scale_ctrl *ret = NULL;
- __u32 diff = 0xffffffff, tmp;
- int size, i;
-
- if (norm & V4L2_STD_NTSC) {
- scale = tw9910_ntsc_scales;
- size = ARRAY_SIZE(tw9910_ntsc_scales);
- } else if (norm & V4L2_STD_PAL) {
- scale = tw9910_pal_scales;
- size = ARRAY_SIZE(tw9910_pal_scales);
- } else {
- return NULL;
- }
-
- for (i = 0; i < size; i++) {
- tmp = abs(width - scale[i].width) +
- abs(height - scale[i].height);
- if (tmp < diff) {
- diff = tmp;
- ret = scale + i;
- }
- }
-
- return ret;
-}
-
-/*
- * subdevice operations
- */
-static int tw9910_s_stream(struct v4l2_subdev *sd, int enable)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct tw9910_priv *priv = to_tw9910(client);
- u8 val;
- int ret;
-
- if (!enable) {
- switch (priv->revision) {
- case 0:
- val = OEN_TRI_SEL_ALL_OFF_r0;
- break;
- case 1:
- val = OEN_TRI_SEL_ALL_OFF_r1;
- break;
- default:
- dev_err(&client->dev, "un-supported revision\n");
- return -EINVAL;
- }
- } else {
- val = OEN_TRI_SEL_ALL_ON;
-
- if (!priv->scale) {
- dev_err(&client->dev, "norm select error\n");
- return -EPERM;
- }
-
- dev_dbg(&client->dev, "%s %dx%d\n",
- priv->scale->name,
- priv->scale->width,
- priv->scale->height);
- }
-
- ret = tw9910_mask_set(client, OPFORM, OEN_TRI_SEL_MASK, val);
- if (ret < 0)
- return ret;
-
- return tw9910_power(client, enable);
-}
-
-static int tw9910_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct tw9910_priv *priv = to_tw9910(client);
-
- *norm = priv->norm;
-
- return 0;
-}
-
-static int tw9910_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct tw9910_priv *priv = to_tw9910(client);
- const unsigned hact = 720;
- const unsigned hdelay = 15;
- unsigned vact;
- unsigned vdelay;
- int ret;
-
- if (!(norm & (V4L2_STD_NTSC | V4L2_STD_PAL)))
- return -EINVAL;
-
- priv->norm = norm;
- if (norm & V4L2_STD_525_60) {
- vact = 240;
- vdelay = 18;
- ret = tw9910_mask_set(client, VVBI, 0x10, 0x10);
- } else {
- vact = 288;
- vdelay = 24;
- ret = tw9910_mask_set(client, VVBI, 0x10, 0x00);
- }
- if (!ret)
- ret = i2c_smbus_write_byte_data(client, CROP_HI,
- ((vdelay >> 2) & 0xc0) |
- ((vact >> 4) & 0x30) |
- ((hdelay >> 6) & 0x0c) |
- ((hact >> 8) & 0x03));
- if (!ret)
- ret = i2c_smbus_write_byte_data(client, VDELAY_LO,
- vdelay & 0xff);
- if (!ret)
- ret = i2c_smbus_write_byte_data(client, VACTIVE_LO,
- vact & 0xff);
-
- return ret;
-}
-
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-static int tw9910_g_register(struct v4l2_subdev *sd,
- struct v4l2_dbg_register *reg)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- int ret;
-
- if (reg->reg > 0xff)
- return -EINVAL;
-
- reg->size = 1;
- ret = i2c_smbus_read_byte_data(client, reg->reg);
- if (ret < 0)
- return ret;
-
- /*
- * ret = int
- * reg->val = __u64
- */
- reg->val = (__u64)ret;
-
- return 0;
-}
-
-static int tw9910_s_register(struct v4l2_subdev *sd,
- const struct v4l2_dbg_register *reg)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
-
- if (reg->reg > 0xff ||
- reg->val > 0xff)
- return -EINVAL;
-
- return i2c_smbus_write_byte_data(client, reg->reg, reg->val);
-}
-#endif
-
-static int tw9910_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 tw9910_priv *priv = to_tw9910(client);
-
- return soc_camera_set_power(&client->dev, ssdd, priv->clk, on);
-}
-
-static int tw9910_set_frame(struct v4l2_subdev *sd, u32 *width, u32 *height)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct tw9910_priv *priv = to_tw9910(client);
- int ret = -EINVAL;
- u8 val;
-
- /*
- * select suitable norm
- */
- priv->scale = tw9910_select_norm(priv->norm, *width, *height);
- if (!priv->scale)
- goto tw9910_set_fmt_error;
-
- /*
- * reset hardware
- */
- tw9910_reset(client);
-
- /*
- * set bus width
- */
- val = 0x00;
- if (SOCAM_DATAWIDTH_16 == priv->info->buswidth)
- val = LEN;
-
- ret = tw9910_mask_set(client, OPFORM, LEN, val);
- if (ret < 0)
- goto tw9910_set_fmt_error;
-
- /*
- * select MPOUT behavior
- */
- switch (priv->info->mpout) {
- case TW9910_MPO_VLOSS:
- val = RTSEL_VLOSS; break;
- case TW9910_MPO_HLOCK:
- val = RTSEL_HLOCK; break;
- case TW9910_MPO_SLOCK:
- val = RTSEL_SLOCK; break;
- case TW9910_MPO_VLOCK:
- val = RTSEL_VLOCK; break;
- case TW9910_MPO_MONO:
- val = RTSEL_MONO; break;
- case TW9910_MPO_DET50:
- val = RTSEL_DET50; break;
- case TW9910_MPO_FIELD:
- val = RTSEL_FIELD; break;
- case TW9910_MPO_RTCO:
- val = RTSEL_RTCO; break;
- default:
- val = 0;
- }
-
- ret = tw9910_mask_set(client, VBICNTL, RTSEL_MASK, val);
- if (ret < 0)
- goto tw9910_set_fmt_error;
-
- /*
- * set scale
- */
- ret = tw9910_set_scale(client, priv->scale);
- if (ret < 0)
- goto tw9910_set_fmt_error;
-
- /*
- * set hsync
- */
- ret = tw9910_set_hsync(client);
- if (ret < 0)
- goto tw9910_set_fmt_error;
-
- *width = priv->scale->width;
- *height = priv->scale->height;
-
- return ret;
-
-tw9910_set_fmt_error:
-
- tw9910_reset(client);
- priv->scale = NULL;
-
- return ret;
-}
-
-static int tw9910_get_selection(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_selection *sel)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct tw9910_priv *priv = to_tw9910(client);
-
- if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
- return -EINVAL;
- /* Only CROP, CROP_DEFAULT and CROP_BOUNDS are supported */
- if (sel->target > V4L2_SEL_TGT_CROP_BOUNDS)
- return -EINVAL;
-
- sel->r.left = 0;
- sel->r.top = 0;
- if (priv->norm & V4L2_STD_NTSC) {
- sel->r.width = 640;
- sel->r.height = 480;
- } else {
- sel->r.width = 768;
- sel->r.height = 576;
- }
- return 0;
-}
-
-static int tw9910_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 tw9910_priv *priv = to_tw9910(client);
-
- if (format->pad)
- return -EINVAL;
-
- if (!priv->scale) {
- priv->scale = tw9910_select_norm(priv->norm, 640, 480);
- if (!priv->scale)
- return -EINVAL;
- }
-
- mf->width = priv->scale->width;
- mf->height = priv->scale->height;
- mf->code = MEDIA_BUS_FMT_UYVY8_2X8;
- mf->colorspace = V4L2_COLORSPACE_SMPTE170M;
- mf->field = V4L2_FIELD_INTERLACED_BT;
-
- return 0;
-}
-
-static int tw9910_s_fmt(struct v4l2_subdev *sd,
- struct v4l2_mbus_framefmt *mf)
-{
- u32 width = mf->width, height = mf->height;
- int ret;
-
- WARN_ON(mf->field != V4L2_FIELD_ANY &&
- mf->field != V4L2_FIELD_INTERLACED_BT);
-
- /*
- * check color format
- */
- if (mf->code != MEDIA_BUS_FMT_UYVY8_2X8)
- return -EINVAL;
-
- mf->colorspace = V4L2_COLORSPACE_SMPTE170M;
-
- ret = tw9910_set_frame(sd, &width, &height);
- if (!ret) {
- mf->width = width;
- mf->height = height;
- }
- return ret;
-}
-
-static int tw9910_set_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 tw9910_priv *priv = to_tw9910(client);
- const struct tw9910_scale_ctrl *scale;
-
- if (format->pad)
- return -EINVAL;
-
- if (V4L2_FIELD_ANY == mf->field) {
- mf->field = V4L2_FIELD_INTERLACED_BT;
- } else if (V4L2_FIELD_INTERLACED_BT != mf->field) {
- dev_err(&client->dev, "Field type %d invalid.\n", mf->field);
- return -EINVAL;
- }
-
- mf->code = MEDIA_BUS_FMT_UYVY8_2X8;
- mf->colorspace = V4L2_COLORSPACE_SMPTE170M;
-
- /*
- * select suitable norm
- */
- scale = tw9910_select_norm(priv->norm, mf->width, mf->height);
- if (!scale)
- return -EINVAL;
-
- mf->width = scale->width;
- mf->height = scale->height;
-
- if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
- return tw9910_s_fmt(sd, mf);
- cfg->try_fmt = *mf;
- return 0;
-}
-
-static int tw9910_video_probe(struct i2c_client *client)
-{
- struct tw9910_priv *priv = to_tw9910(client);
- s32 id;
- int ret;
-
- /*
- * tw9910 only use 8 or 16 bit bus width
- */
- if (SOCAM_DATAWIDTH_16 != priv->info->buswidth &&
- SOCAM_DATAWIDTH_8 != priv->info->buswidth) {
- dev_err(&client->dev, "bus width error\n");
- return -ENODEV;
- }
-
- ret = tw9910_s_power(&priv->subdev, 1);
- if (ret < 0)
- return ret;
-
- /*
- * check and show Product ID
- * So far only revisions 0 and 1 have been seen
- */
- id = i2c_smbus_read_byte_data(client, ID);
- priv->revision = GET_REV(id);
- id = GET_ID(id);
-
- if (0x0B != id ||
- 0x01 < priv->revision) {
- dev_err(&client->dev,
- "Product ID error %x:%x\n",
- id, priv->revision);
- ret = -ENODEV;
- goto done;
- }
-
- dev_info(&client->dev,
- "tw9910 Product ID %0x:%0x\n", id, priv->revision);
-
- priv->norm = V4L2_STD_NTSC;
- priv->scale = &tw9910_ntsc_scales[0];
-
-done:
- tw9910_s_power(&priv->subdev, 0);
- return ret;
-}
-
-static const struct v4l2_subdev_core_ops tw9910_subdev_core_ops = {
-#ifdef CONFIG_VIDEO_ADV_DEBUG
- .g_register = tw9910_g_register,
- .s_register = tw9910_s_register,
-#endif
- .s_power = tw9910_s_power,
-};
-
-static int tw9910_enum_mbus_code(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_mbus_code_enum *code)
-{
- if (code->pad || code->index)
- return -EINVAL;
-
- code->code = MEDIA_BUS_FMT_UYVY8_2X8;
- return 0;
-}
-
-static int tw9910_g_mbus_config(struct v4l2_subdev *sd,
- struct v4l2_mbus_config *cfg)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client);
-
- cfg->flags = V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_MASTER |
- V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW |
- V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW |
- V4L2_MBUS_DATA_ACTIVE_HIGH;
- cfg->type = V4L2_MBUS_PARALLEL;
- cfg->flags = soc_camera_apply_board_flags(ssdd, cfg);
-
- return 0;
-}
-
-static int tw9910_s_mbus_config(struct v4l2_subdev *sd,
- const struct v4l2_mbus_config *cfg)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client);
- u8 val = VSSL_VVALID | HSSL_DVALID;
- unsigned long flags = soc_camera_apply_board_flags(ssdd, cfg);
-
- /*
- * set OUTCTR1
- *
- * We use VVALID and DVALID signals to control VSYNC and HSYNC
- * outputs, in this mode their polarity is inverted.
- */
- if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
- val |= HSP_HI;
-
- if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
- val |= VSP_HI;
-
- return i2c_smbus_write_byte_data(client, OUTCTR1, val);
-}
-
-static int tw9910_g_tvnorms(struct v4l2_subdev *sd, v4l2_std_id *norm)
-{
- *norm = V4L2_STD_NTSC | V4L2_STD_PAL;
- return 0;
-}
-
-static const struct v4l2_subdev_video_ops tw9910_subdev_video_ops = {
- .s_std = tw9910_s_std,
- .g_std = tw9910_g_std,
- .s_stream = tw9910_s_stream,
- .g_mbus_config = tw9910_g_mbus_config,
- .s_mbus_config = tw9910_s_mbus_config,
- .g_tvnorms = tw9910_g_tvnorms,
-};
-
-static const struct v4l2_subdev_pad_ops tw9910_subdev_pad_ops = {
- .enum_mbus_code = tw9910_enum_mbus_code,
- .get_selection = tw9910_get_selection,
- .get_fmt = tw9910_get_fmt,
- .set_fmt = tw9910_set_fmt,
-};
-
-static const struct v4l2_subdev_ops tw9910_subdev_ops = {
- .core = &tw9910_subdev_core_ops,
- .video = &tw9910_subdev_video_ops,
- .pad = &tw9910_subdev_pad_ops,
-};
-
-/*
- * i2c_driver function
- */
-
-static int tw9910_probe(struct i2c_client *client,
- const struct i2c_device_id *did)
-
-{
- struct tw9910_priv *priv;
- struct tw9910_video_info *info;
- 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 || !ssdd->drv_priv) {
- dev_err(&client->dev, "TW9910: missing platform data!\n");
- return -EINVAL;
- }
-
- info = ssdd->drv_priv;
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
- dev_err(&client->dev,
- "I2C-Adapter doesn't support I2C_FUNC_SMBUS_BYTE_DATA\n");
- return -EIO;
- }
-
- priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- priv->info = info;
-
- v4l2_i2c_subdev_init(&priv->subdev, client, &tw9910_subdev_ops);
-
- priv->clk = v4l2_clk_get(&client->dev, "mclk");
- if (IS_ERR(priv->clk))
- return PTR_ERR(priv->clk);
-
- ret = tw9910_video_probe(client);
- if (ret < 0)
- v4l2_clk_put(priv->clk);
-
- return ret;
-}
-
-static int tw9910_remove(struct i2c_client *client)
-{
- struct tw9910_priv *priv = to_tw9910(client);
- v4l2_clk_put(priv->clk);
- return 0;
-}
-
-static const struct i2c_device_id tw9910_id[] = {
- { "tw9910", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, tw9910_id);
-
-static struct i2c_driver tw9910_i2c_driver = {
- .driver = {
- .name = "tw9910",
- },
- .probe = tw9910_probe,
- .remove = tw9910_remove,
- .id_table = tw9910_id,
-};
-
-module_i2c_driver(tw9910_i2c_driver);
-
-MODULE_DESCRIPTION("SoC Camera driver for tw9910");
-MODULE_AUTHOR("Kuninori Morimoto");
-MODULE_LICENSE("GPL v2");
projects / platform / kernel / linux-starfive.git / commitdiff