+++ /dev/null
-/*
- * mt9t112 Camera Driver
- *
- * Copyright (C) 2009 Renesas Solutions Corp.
- * Kuninori Morimoto <morimoto.kuninori@renesas.com>
- *
- * Based on ov772x driver, mt9m111 driver,
- *
- * Copyright (C) 2008 Kuninori Morimoto <morimoto.kuninori@renesas.com>
- * Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@free.fr>
- * 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/delay.h>
-#include <linux/i2c.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/v4l2-mediabus.h>
-#include <linux/videodev2.h>
-
-#include <media/i2c/mt9t112.h>
-#include <media/soc_camera.h>
-#include <media/v4l2-clk.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-image-sizes.h>
-
-/* you can check PLL/clock info */
-/* #define EXT_CLOCK 24000000 */
-
-/************************************************************************
- macro
-************************************************************************/
-/*
- * frame size
- */
-#define MAX_WIDTH 2048
-#define MAX_HEIGHT 1536
-
-/*
- * macro of read/write
- */
-#define ECHECKER(ret, x) \
- do { \
- (ret) = (x); \
- if ((ret) < 0) \
- return (ret); \
- } while (0)
-
-#define mt9t112_reg_write(ret, client, a, b) \
- ECHECKER(ret, __mt9t112_reg_write(client, a, b))
-#define mt9t112_mcu_write(ret, client, a, b) \
- ECHECKER(ret, __mt9t112_mcu_write(client, a, b))
-
-#define mt9t112_reg_mask_set(ret, client, a, b, c) \
- ECHECKER(ret, __mt9t112_reg_mask_set(client, a, b, c))
-#define mt9t112_mcu_mask_set(ret, client, a, b, c) \
- ECHECKER(ret, __mt9t112_mcu_mask_set(client, a, b, c))
-
-#define mt9t112_reg_read(ret, client, a) \
- ECHECKER(ret, __mt9t112_reg_read(client, a))
-
-/*
- * Logical address
- */
-#define _VAR(id, offset, base) (base | (id & 0x1f) << 10 | (offset & 0x3ff))
-#define VAR(id, offset) _VAR(id, offset, 0x0000)
-#define VAR8(id, offset) _VAR(id, offset, 0x8000)
-
-/************************************************************************
- struct
-************************************************************************/
-struct mt9t112_format {
- u32 code;
- enum v4l2_colorspace colorspace;
- u16 fmt;
- u16 order;
-};
-
-struct mt9t112_priv {
- struct v4l2_subdev subdev;
- struct mt9t112_platform_data *info;
- struct i2c_client *client;
- struct v4l2_rect frame;
- struct v4l2_clk *clk;
- const struct mt9t112_format *format;
- int num_formats;
- u32 flags;
-/* for flags */
-#define INIT_DONE (1 << 0)
-#define PCLK_RISING (1 << 1)
-};
-
-/************************************************************************
- supported format
-************************************************************************/
-
-static const struct mt9t112_format mt9t112_cfmts[] = {
- {
- .code = MEDIA_BUS_FMT_UYVY8_2X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .fmt = 1,
- .order = 0,
- }, {
- .code = MEDIA_BUS_FMT_VYUY8_2X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .fmt = 1,
- .order = 1,
- }, {
- .code = MEDIA_BUS_FMT_YUYV8_2X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .fmt = 1,
- .order = 2,
- }, {
- .code = MEDIA_BUS_FMT_YVYU8_2X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .fmt = 1,
- .order = 3,
- }, {
- .code = MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .fmt = 8,
- .order = 2,
- }, {
- .code = MEDIA_BUS_FMT_RGB565_2X8_LE,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .fmt = 4,
- .order = 2,
- },
-};
-
-/************************************************************************
- general function
-************************************************************************/
-static struct mt9t112_priv *to_mt9t112(const struct i2c_client *client)
-{
- return container_of(i2c_get_clientdata(client),
- struct mt9t112_priv,
- subdev);
-}
-
-static int __mt9t112_reg_read(const struct i2c_client *client, u16 command)
-{
- struct i2c_msg msg[2];
- u8 buf[2];
- int ret;
-
- command = swab16(command);
-
- msg[0].addr = client->addr;
- msg[0].flags = 0;
- msg[0].len = 2;
- msg[0].buf = (u8 *)&command;
-
- msg[1].addr = client->addr;
- msg[1].flags = I2C_M_RD;
- msg[1].len = 2;
- msg[1].buf = buf;
-
- /*
- * if return value of this function is < 0,
- * it mean error.
- * else, under 16bit is valid data.
- */
- ret = i2c_transfer(client->adapter, msg, 2);
- if (ret < 0)
- return ret;
-
- memcpy(&ret, buf, 2);
- return swab16(ret);
-}
-
-static int __mt9t112_reg_write(const struct i2c_client *client,
- u16 command, u16 data)
-{
- struct i2c_msg msg;
- u8 buf[4];
- int ret;
-
- command = swab16(command);
- data = swab16(data);
-
- memcpy(buf + 0, &command, 2);
- memcpy(buf + 2, &data, 2);
-
- msg.addr = client->addr;
- msg.flags = 0;
- msg.len = 4;
- msg.buf = buf;
-
- /*
- * i2c_transfer return message length,
- * but this function should return 0 if correct case
- */
- ret = i2c_transfer(client->adapter, &msg, 1);
- if (ret >= 0)
- ret = 0;
-
- return ret;
-}
-
-static int __mt9t112_reg_mask_set(const struct i2c_client *client,
- u16 command,
- u16 mask,
- u16 set)
-{
- int val = __mt9t112_reg_read(client, command);
- if (val < 0)
- return val;
-
- val &= ~mask;
- val |= set & mask;
-
- return __mt9t112_reg_write(client, command, val);
-}
-
-/* mcu access */
-static int __mt9t112_mcu_read(const struct i2c_client *client, u16 command)
-{
- int ret;
-
- ret = __mt9t112_reg_write(client, 0x098E, command);
- if (ret < 0)
- return ret;
-
- return __mt9t112_reg_read(client, 0x0990);
-}
-
-static int __mt9t112_mcu_write(const struct i2c_client *client,
- u16 command, u16 data)
-{
- int ret;
-
- ret = __mt9t112_reg_write(client, 0x098E, command);
- if (ret < 0)
- return ret;
-
- return __mt9t112_reg_write(client, 0x0990, data);
-}
-
-static int __mt9t112_mcu_mask_set(const struct i2c_client *client,
- u16 command,
- u16 mask,
- u16 set)
-{
- int val = __mt9t112_mcu_read(client, command);
- if (val < 0)
- return val;
-
- val &= ~mask;
- val |= set & mask;
-
- return __mt9t112_mcu_write(client, command, val);
-}
-
-static int mt9t112_reset(const struct i2c_client *client)
-{
- int ret;
-
- mt9t112_reg_mask_set(ret, client, 0x001a, 0x0001, 0x0001);
- msleep(1);
- mt9t112_reg_mask_set(ret, client, 0x001a, 0x0001, 0x0000);
-
- return ret;
-}
-
-#ifndef EXT_CLOCK
-#define CLOCK_INFO(a, b)
-#else
-#define CLOCK_INFO(a, b) mt9t112_clock_info(a, b)
-static int mt9t112_clock_info(const struct i2c_client *client, u32 ext)
-{
- int m, n, p1, p2, p3, p4, p5, p6, p7;
- u32 vco, clk;
- char *enable;
-
- ext /= 1000; /* kbyte order */
-
- mt9t112_reg_read(n, client, 0x0012);
- p1 = n & 0x000f;
- n = n >> 4;
- p2 = n & 0x000f;
- n = n >> 4;
- p3 = n & 0x000f;
-
- mt9t112_reg_read(n, client, 0x002a);
- p4 = n & 0x000f;
- n = n >> 4;
- p5 = n & 0x000f;
- n = n >> 4;
- p6 = n & 0x000f;
-
- mt9t112_reg_read(n, client, 0x002c);
- p7 = n & 0x000f;
-
- mt9t112_reg_read(n, client, 0x0010);
- m = n & 0x00ff;
- n = (n >> 8) & 0x003f;
-
- enable = ((6000 > ext) || (54000 < ext)) ? "X" : "";
- dev_dbg(&client->dev, "EXTCLK : %10u K %s\n", ext, enable);
-
- vco = 2 * m * ext / (n+1);
- enable = ((384000 > vco) || (768000 < vco)) ? "X" : "";
- dev_dbg(&client->dev, "VCO : %10u K %s\n", vco, enable);
-
- clk = vco / (p1+1) / (p2+1);
- enable = (96000 < clk) ? "X" : "";
- dev_dbg(&client->dev, "PIXCLK : %10u K %s\n", clk, enable);
-
- clk = vco / (p3+1);
- enable = (768000 < clk) ? "X" : "";
- dev_dbg(&client->dev, "MIPICLK : %10u K %s\n", clk, enable);
-
- clk = vco / (p6+1);
- enable = (96000 < clk) ? "X" : "";
- dev_dbg(&client->dev, "MCU CLK : %10u K %s\n", clk, enable);
-
- clk = vco / (p5+1);
- enable = (54000 < clk) ? "X" : "";
- dev_dbg(&client->dev, "SOC CLK : %10u K %s\n", clk, enable);
-
- clk = vco / (p4+1);
- enable = (70000 < clk) ? "X" : "";
- dev_dbg(&client->dev, "Sensor CLK : %10u K %s\n", clk, enable);
-
- clk = vco / (p7+1);
- dev_dbg(&client->dev, "External sensor : %10u K\n", clk);
-
- clk = ext / (n+1);
- enable = ((2000 > clk) || (24000 < clk)) ? "X" : "";
- dev_dbg(&client->dev, "PFD : %10u K %s\n", clk, enable);
-
- return 0;
-}
-#endif
-
-static void mt9t112_frame_check(u32 *width, u32 *height, u32 *left, u32 *top)
-{
- soc_camera_limit_side(left, width, 0, 0, MAX_WIDTH);
- soc_camera_limit_side(top, height, 0, 0, MAX_HEIGHT);
-}
-
-static int mt9t112_set_a_frame_size(const struct i2c_client *client,
- u16 width,
- u16 height)
-{
- int ret;
- u16 wstart = (MAX_WIDTH - width) / 2;
- u16 hstart = (MAX_HEIGHT - height) / 2;
-
- /* (Context A) Image Width/Height */
- mt9t112_mcu_write(ret, client, VAR(26, 0), width);
- mt9t112_mcu_write(ret, client, VAR(26, 2), height);
-
- /* (Context A) Output Width/Height */
- mt9t112_mcu_write(ret, client, VAR(18, 43), 8 + width);
- mt9t112_mcu_write(ret, client, VAR(18, 45), 8 + height);
-
- /* (Context A) Start Row/Column */
- mt9t112_mcu_write(ret, client, VAR(18, 2), 4 + hstart);
- mt9t112_mcu_write(ret, client, VAR(18, 4), 4 + wstart);
-
- /* (Context A) End Row/Column */
- mt9t112_mcu_write(ret, client, VAR(18, 6), 11 + height + hstart);
- mt9t112_mcu_write(ret, client, VAR(18, 8), 11 + width + wstart);
-
- mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x06);
-
- return ret;
-}
-
-static int mt9t112_set_pll_dividers(const struct i2c_client *client,
- u8 m, u8 n,
- u8 p1, u8 p2, u8 p3,
- u8 p4, u8 p5, u8 p6,
- u8 p7)
-{
- int ret;
- u16 val;
-
- /* N/M */
- val = (n << 8) |
- (m << 0);
- mt9t112_reg_mask_set(ret, client, 0x0010, 0x3fff, val);
-
- /* P1/P2/P3 */
- val = ((p3 & 0x0F) << 8) |
- ((p2 & 0x0F) << 4) |
- ((p1 & 0x0F) << 0);
- mt9t112_reg_mask_set(ret, client, 0x0012, 0x0fff, val);
-
- /* P4/P5/P6 */
- val = (0x7 << 12) |
- ((p6 & 0x0F) << 8) |
- ((p5 & 0x0F) << 4) |
- ((p4 & 0x0F) << 0);
- mt9t112_reg_mask_set(ret, client, 0x002A, 0x7fff, val);
-
- /* P7 */
- val = (0x1 << 12) |
- ((p7 & 0x0F) << 0);
- mt9t112_reg_mask_set(ret, client, 0x002C, 0x100f, val);
-
- return ret;
-}
-
-static int mt9t112_init_pll(const struct i2c_client *client)
-{
- struct mt9t112_priv *priv = to_mt9t112(client);
- int data, i, ret;
-
- mt9t112_reg_mask_set(ret, client, 0x0014, 0x003, 0x0001);
-
- /* PLL control: BYPASS PLL = 8517 */
- mt9t112_reg_write(ret, client, 0x0014, 0x2145);
-
- /* Replace these registers when new timing parameters are generated */
- mt9t112_set_pll_dividers(client,
- priv->info->divider.m,
- priv->info->divider.n,
- priv->info->divider.p1,
- priv->info->divider.p2,
- priv->info->divider.p3,
- priv->info->divider.p4,
- priv->info->divider.p5,
- priv->info->divider.p6,
- priv->info->divider.p7);
-
- /*
- * TEST_BYPASS on
- * PLL_ENABLE on
- * SEL_LOCK_DET on
- * TEST_BYPASS off
- */
- mt9t112_reg_write(ret, client, 0x0014, 0x2525);
- mt9t112_reg_write(ret, client, 0x0014, 0x2527);
- mt9t112_reg_write(ret, client, 0x0014, 0x3427);
- mt9t112_reg_write(ret, client, 0x0014, 0x3027);
-
- mdelay(10);
-
- /*
- * PLL_BYPASS off
- * Reference clock count
- * I2C Master Clock Divider
- */
- mt9t112_reg_write(ret, client, 0x0014, 0x3046);
- mt9t112_reg_write(ret, client, 0x0016, 0x0400); /* JPEG initialization workaround */
- mt9t112_reg_write(ret, client, 0x0022, 0x0190);
- mt9t112_reg_write(ret, client, 0x3B84, 0x0212);
-
- /* External sensor clock is PLL bypass */
- mt9t112_reg_write(ret, client, 0x002E, 0x0500);
-
- mt9t112_reg_mask_set(ret, client, 0x0018, 0x0002, 0x0002);
- mt9t112_reg_mask_set(ret, client, 0x3B82, 0x0004, 0x0004);
-
- /* MCU disabled */
- mt9t112_reg_mask_set(ret, client, 0x0018, 0x0004, 0x0004);
-
- /* out of standby */
- mt9t112_reg_mask_set(ret, client, 0x0018, 0x0001, 0);
-
- mdelay(50);
-
- /*
- * Standby Workaround
- * Disable Secondary I2C Pads
- */
- mt9t112_reg_write(ret, client, 0x0614, 0x0001);
- mdelay(1);
- mt9t112_reg_write(ret, client, 0x0614, 0x0001);
- mdelay(1);
- mt9t112_reg_write(ret, client, 0x0614, 0x0001);
- mdelay(1);
- mt9t112_reg_write(ret, client, 0x0614, 0x0001);
- mdelay(1);
- mt9t112_reg_write(ret, client, 0x0614, 0x0001);
- mdelay(1);
- mt9t112_reg_write(ret, client, 0x0614, 0x0001);
- mdelay(1);
-
- /* poll to verify out of standby. Must Poll this bit */
- for (i = 0; i < 100; i++) {
- mt9t112_reg_read(data, client, 0x0018);
- if (!(0x4000 & data))
- break;
-
- mdelay(10);
- }
-
- return ret;
-}
-
-static int mt9t112_init_setting(const struct i2c_client *client)
-{
-
- int ret;
-
- /* Adaptive Output Clock (A) */
- mt9t112_mcu_mask_set(ret, client, VAR(26, 160), 0x0040, 0x0000);
-
- /* Read Mode (A) */
- mt9t112_mcu_write(ret, client, VAR(18, 12), 0x0024);
-
- /* Fine Correction (A) */
- mt9t112_mcu_write(ret, client, VAR(18, 15), 0x00CC);
-
- /* Fine IT Min (A) */
- mt9t112_mcu_write(ret, client, VAR(18, 17), 0x01f1);
-
- /* Fine IT Max Margin (A) */
- mt9t112_mcu_write(ret, client, VAR(18, 19), 0x00fF);
-
- /* Base Frame Lines (A) */
- mt9t112_mcu_write(ret, client, VAR(18, 29), 0x032D);
-
- /* Min Line Length (A) */
- mt9t112_mcu_write(ret, client, VAR(18, 31), 0x073a);
-
- /* Line Length (A) */
- mt9t112_mcu_write(ret, client, VAR(18, 37), 0x07d0);
-
- /* Adaptive Output Clock (B) */
- mt9t112_mcu_mask_set(ret, client, VAR(27, 160), 0x0040, 0x0000);
-
- /* Row Start (B) */
- mt9t112_mcu_write(ret, client, VAR(18, 74), 0x004);
-
- /* Column Start (B) */
- mt9t112_mcu_write(ret, client, VAR(18, 76), 0x004);
-
- /* Row End (B) */
- mt9t112_mcu_write(ret, client, VAR(18, 78), 0x60B);
-
- /* Column End (B) */
- mt9t112_mcu_write(ret, client, VAR(18, 80), 0x80B);
-
- /* Fine Correction (B) */
- mt9t112_mcu_write(ret, client, VAR(18, 87), 0x008C);
-
- /* Fine IT Min (B) */
- mt9t112_mcu_write(ret, client, VAR(18, 89), 0x01F1);
-
- /* Fine IT Max Margin (B) */
- mt9t112_mcu_write(ret, client, VAR(18, 91), 0x00FF);
-
- /* Base Frame Lines (B) */
- mt9t112_mcu_write(ret, client, VAR(18, 101), 0x0668);
-
- /* Min Line Length (B) */
- mt9t112_mcu_write(ret, client, VAR(18, 103), 0x0AF0);
-
- /* Line Length (B) */
- mt9t112_mcu_write(ret, client, VAR(18, 109), 0x0AF0);
-
- /*
- * Flicker Dectection registers
- * This section should be replaced whenever new Timing file is generated
- * All the following registers need to be replaced
- * Following registers are generated from Register Wizard but user can
- * modify them. For detail see auto flicker detection tuning
- */
-
- /* FD_FDPERIOD_SELECT */
- mt9t112_mcu_write(ret, client, VAR8(8, 5), 0x01);
-
- /* PRI_B_CONFIG_FD_ALGO_RUN */
- mt9t112_mcu_write(ret, client, VAR(27, 17), 0x0003);
-
- /* PRI_A_CONFIG_FD_ALGO_RUN */
- mt9t112_mcu_write(ret, client, VAR(26, 17), 0x0003);
-
- /*
- * AFD range detection tuning registers
- */
-
- /* search_f1_50 */
- mt9t112_mcu_write(ret, client, VAR8(18, 165), 0x25);
-
- /* search_f2_50 */
- mt9t112_mcu_write(ret, client, VAR8(18, 166), 0x28);
-
- /* search_f1_60 */
- mt9t112_mcu_write(ret, client, VAR8(18, 167), 0x2C);
-
- /* search_f2_60 */
- mt9t112_mcu_write(ret, client, VAR8(18, 168), 0x2F);
-
- /* period_50Hz (A) */
- mt9t112_mcu_write(ret, client, VAR8(18, 68), 0xBA);
-
- /* secret register by aptina */
- /* period_50Hz (A MSB) */
- mt9t112_mcu_write(ret, client, VAR8(18, 303), 0x00);
-
- /* period_60Hz (A) */
- mt9t112_mcu_write(ret, client, VAR8(18, 69), 0x9B);
-
- /* secret register by aptina */
- /* period_60Hz (A MSB) */
- mt9t112_mcu_write(ret, client, VAR8(18, 301), 0x00);
-
- /* period_50Hz (B) */
- mt9t112_mcu_write(ret, client, VAR8(18, 140), 0x82);
-
- /* secret register by aptina */
- /* period_50Hz (B) MSB */
- mt9t112_mcu_write(ret, client, VAR8(18, 304), 0x00);
-
- /* period_60Hz (B) */
- mt9t112_mcu_write(ret, client, VAR8(18, 141), 0x6D);
-
- /* secret register by aptina */
- /* period_60Hz (B) MSB */
- mt9t112_mcu_write(ret, client, VAR8(18, 302), 0x00);
-
- /* FD Mode */
- mt9t112_mcu_write(ret, client, VAR8(8, 2), 0x10);
-
- /* Stat_min */
- mt9t112_mcu_write(ret, client, VAR8(8, 9), 0x02);
-
- /* Stat_max */
- mt9t112_mcu_write(ret, client, VAR8(8, 10), 0x03);
-
- /* Min_amplitude */
- mt9t112_mcu_write(ret, client, VAR8(8, 12), 0x0A);
-
- /* RX FIFO Watermark (A) */
- mt9t112_mcu_write(ret, client, VAR(18, 70), 0x0014);
-
- /* RX FIFO Watermark (B) */
- mt9t112_mcu_write(ret, client, VAR(18, 142), 0x0014);
-
- /* MCLK: 16MHz
- * PCLK: 73MHz
- * CorePixCLK: 36.5 MHz
- */
- mt9t112_mcu_write(ret, client, VAR8(18, 0x0044), 133);
- mt9t112_mcu_write(ret, client, VAR8(18, 0x0045), 110);
- mt9t112_mcu_write(ret, client, VAR8(18, 0x008c), 130);
- mt9t112_mcu_write(ret, client, VAR8(18, 0x008d), 108);
-
- mt9t112_mcu_write(ret, client, VAR8(18, 0x00A5), 27);
- mt9t112_mcu_write(ret, client, VAR8(18, 0x00a6), 30);
- mt9t112_mcu_write(ret, client, VAR8(18, 0x00a7), 32);
- mt9t112_mcu_write(ret, client, VAR8(18, 0x00a8), 35);
-
- return ret;
-}
-
-static int mt9t112_auto_focus_setting(const struct i2c_client *client)
-{
- int ret;
-
- mt9t112_mcu_write(ret, client, VAR(12, 13), 0x000F);
- mt9t112_mcu_write(ret, client, VAR(12, 23), 0x0F0F);
- mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x06);
-
- mt9t112_reg_write(ret, client, 0x0614, 0x0000);
-
- mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x05);
- mt9t112_mcu_write(ret, client, VAR8(12, 2), 0x02);
- mt9t112_mcu_write(ret, client, VAR(12, 3), 0x0002);
- mt9t112_mcu_write(ret, client, VAR(17, 3), 0x8001);
- mt9t112_mcu_write(ret, client, VAR(17, 11), 0x0025);
- mt9t112_mcu_write(ret, client, VAR(17, 13), 0x0193);
- mt9t112_mcu_write(ret, client, VAR8(17, 33), 0x18);
- mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x05);
-
- return ret;
-}
-
-static int mt9t112_auto_focus_trigger(const struct i2c_client *client)
-{
- int ret;
-
- mt9t112_mcu_write(ret, client, VAR8(12, 25), 0x01);
-
- return ret;
-}
-
-static int mt9t112_init_camera(const struct i2c_client *client)
-{
- int ret;
-
- ECHECKER(ret, mt9t112_reset(client));
-
- ECHECKER(ret, mt9t112_init_pll(client));
-
- ECHECKER(ret, mt9t112_init_setting(client));
-
- ECHECKER(ret, mt9t112_auto_focus_setting(client));
-
- mt9t112_reg_mask_set(ret, client, 0x0018, 0x0004, 0);
-
- /* Analog setting B */
- mt9t112_reg_write(ret, client, 0x3084, 0x2409);
- mt9t112_reg_write(ret, client, 0x3092, 0x0A49);
- mt9t112_reg_write(ret, client, 0x3094, 0x4949);
- mt9t112_reg_write(ret, client, 0x3096, 0x4950);
-
- /*
- * Disable adaptive clock
- * PRI_A_CONFIG_JPEG_OB_TX_CONTROL_VAR
- * PRI_B_CONFIG_JPEG_OB_TX_CONTROL_VAR
- */
- mt9t112_mcu_write(ret, client, VAR(26, 160), 0x0A2E);
- mt9t112_mcu_write(ret, client, VAR(27, 160), 0x0A2E);
-
- /* Configure STatus in Status_before_length Format and enable header */
- /* PRI_B_CONFIG_JPEG_OB_TX_CONTROL_VAR */
- mt9t112_mcu_write(ret, client, VAR(27, 144), 0x0CB4);
-
- /* Enable JPEG in context B */
- /* PRI_B_CONFIG_JPEG_OB_TX_CONTROL_VAR */
- mt9t112_mcu_write(ret, client, VAR8(27, 142), 0x01);
-
- /* Disable Dac_TXLO */
- mt9t112_reg_write(ret, client, 0x316C, 0x350F);
-
- /* Set max slew rates */
- mt9t112_reg_write(ret, client, 0x1E, 0x777);
-
- return ret;
-}
-
-/************************************************************************
- v4l2_subdev_core_ops
-************************************************************************/
-
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-static int mt9t112_g_register(struct v4l2_subdev *sd,
- struct v4l2_dbg_register *reg)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- int ret;
-
- reg->size = 2;
- mt9t112_reg_read(ret, client, reg->reg);
-
- reg->val = (__u64)ret;
-
- return 0;
-}
-
-static int mt9t112_s_register(struct v4l2_subdev *sd,
- const struct v4l2_dbg_register *reg)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- int ret;
-
- mt9t112_reg_write(ret, client, reg->reg, reg->val);
-
- return ret;
-}
-#endif
-
-static int mt9t112_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 mt9t112_priv *priv = to_mt9t112(client);
-
- return soc_camera_set_power(&client->dev, ssdd, priv->clk, on);
-}
-
-static const struct v4l2_subdev_core_ops mt9t112_subdev_core_ops = {
-#ifdef CONFIG_VIDEO_ADV_DEBUG
- .g_register = mt9t112_g_register,
- .s_register = mt9t112_s_register,
-#endif
- .s_power = mt9t112_s_power,
-};
-
-
-/************************************************************************
- v4l2_subdev_video_ops
-************************************************************************/
-static int mt9t112_s_stream(struct v4l2_subdev *sd, int enable)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9t112_priv *priv = to_mt9t112(client);
- int ret = 0;
-
- if (!enable) {
- /* FIXME
- *
- * If user selected large output size,
- * and used it long time,
- * mt9t112 camera will be very warm.
- *
- * But current driver can not stop mt9t112 camera.
- * So, set small size here to solve this problem.
- */
- mt9t112_set_a_frame_size(client, VGA_WIDTH, VGA_HEIGHT);
- return ret;
- }
-
- if (!(priv->flags & INIT_DONE)) {
- u16 param = PCLK_RISING & priv->flags ? 0x0001 : 0x0000;
-
- ECHECKER(ret, mt9t112_init_camera(client));
-
- /* Invert PCLK (Data sampled on falling edge of pixclk) */
- mt9t112_reg_write(ret, client, 0x3C20, param);
-
- mdelay(5);
-
- priv->flags |= INIT_DONE;
- }
-
- mt9t112_mcu_write(ret, client, VAR(26, 7), priv->format->fmt);
- mt9t112_mcu_write(ret, client, VAR(26, 9), priv->format->order);
- mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x06);
-
- mt9t112_set_a_frame_size(client,
- priv->frame.width,
- priv->frame.height);
-
- ECHECKER(ret, mt9t112_auto_focus_trigger(client));
-
- dev_dbg(&client->dev, "format : %d\n", priv->format->code);
- dev_dbg(&client->dev, "size : %d x %d\n",
- priv->frame.width,
- priv->frame.height);
-
- CLOCK_INFO(client, EXT_CLOCK);
-
- return ret;
-}
-
-static int mt9t112_set_params(struct mt9t112_priv *priv,
- const struct v4l2_rect *rect,
- u32 code)
-{
- int i;
-
- /*
- * get color format
- */
- for (i = 0; i < priv->num_formats; i++)
- if (mt9t112_cfmts[i].code == code)
- break;
-
- if (i == priv->num_formats)
- return -EINVAL;
-
- priv->frame = *rect;
-
- /*
- * frame size check
- */
- mt9t112_frame_check(&priv->frame.width, &priv->frame.height,
- &priv->frame.left, &priv->frame.top);
-
- priv->format = mt9t112_cfmts + i;
-
- return 0;
-}
-
-static int mt9t112_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 mt9t112_priv *priv = to_mt9t112(client);
-
- if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
- return -EINVAL;
-
- switch (sel->target) {
- case V4L2_SEL_TGT_CROP_BOUNDS:
- sel->r.left = 0;
- sel->r.top = 0;
- sel->r.width = MAX_WIDTH;
- sel->r.height = MAX_HEIGHT;
- return 0;
- case V4L2_SEL_TGT_CROP:
- sel->r = priv->frame;
- return 0;
- default:
- return -EINVAL;
- }
-}
-
-static int mt9t112_set_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 mt9t112_priv *priv = to_mt9t112(client);
- const struct v4l2_rect *rect = &sel->r;
-
- if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE ||
- sel->target != V4L2_SEL_TGT_CROP)
- return -EINVAL;
-
- return mt9t112_set_params(priv, rect, priv->format->code);
-}
-
-static int mt9t112_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 mt9t112_priv *priv = to_mt9t112(client);
-
- if (format->pad)
- return -EINVAL;
-
- mf->width = priv->frame.width;
- mf->height = priv->frame.height;
- mf->colorspace = priv->format->colorspace;
- mf->code = priv->format->code;
- mf->field = V4L2_FIELD_NONE;
-
- return 0;
-}
-
-static int mt9t112_s_fmt(struct v4l2_subdev *sd,
- struct v4l2_mbus_framefmt *mf)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9t112_priv *priv = to_mt9t112(client);
- struct v4l2_rect rect = {
- .width = mf->width,
- .height = mf->height,
- .left = priv->frame.left,
- .top = priv->frame.top,
- };
- int ret;
-
- ret = mt9t112_set_params(priv, &rect, mf->code);
-
- if (!ret)
- mf->colorspace = priv->format->colorspace;
-
- return ret;
-}
-
-static int mt9t112_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 mt9t112_priv *priv = to_mt9t112(client);
- unsigned int top, left;
- int i;
-
- if (format->pad)
- return -EINVAL;
-
- for (i = 0; i < priv->num_formats; i++)
- if (mt9t112_cfmts[i].code == mf->code)
- break;
-
- if (i == priv->num_formats) {
- mf->code = MEDIA_BUS_FMT_UYVY8_2X8;
- mf->colorspace = V4L2_COLORSPACE_JPEG;
- } else {
- mf->colorspace = mt9t112_cfmts[i].colorspace;
- }
-
- mt9t112_frame_check(&mf->width, &mf->height, &left, &top);
-
- mf->field = V4L2_FIELD_NONE;
-
- if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
- return mt9t112_s_fmt(sd, mf);
- cfg->try_fmt = *mf;
- return 0;
-}
-
-static int mt9t112_enum_mbus_code(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_mbus_code_enum *code)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9t112_priv *priv = to_mt9t112(client);
-
- if (code->pad || code->index >= priv->num_formats)
- return -EINVAL;
-
- code->code = mt9t112_cfmts[code->index].code;
-
- return 0;
-}
-
-static int mt9t112_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_MASTER | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
- V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_DATA_ACTIVE_HIGH |
- V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING;
- cfg->type = V4L2_MBUS_PARALLEL;
- cfg->flags = soc_camera_apply_board_flags(ssdd, cfg);
-
- return 0;
-}
-
-static int mt9t112_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);
- struct mt9t112_priv *priv = to_mt9t112(client);
-
- if (soc_camera_apply_board_flags(ssdd, cfg) & V4L2_MBUS_PCLK_SAMPLE_RISING)
- priv->flags |= PCLK_RISING;
-
- return 0;
-}
-
-static const struct v4l2_subdev_video_ops mt9t112_subdev_video_ops = {
- .s_stream = mt9t112_s_stream,
- .g_mbus_config = mt9t112_g_mbus_config,
- .s_mbus_config = mt9t112_s_mbus_config,
-};
-
-static const struct v4l2_subdev_pad_ops mt9t112_subdev_pad_ops = {
- .enum_mbus_code = mt9t112_enum_mbus_code,
- .get_selection = mt9t112_get_selection,
- .set_selection = mt9t112_set_selection,
- .get_fmt = mt9t112_get_fmt,
- .set_fmt = mt9t112_set_fmt,
-};
-
-/************************************************************************
- i2c driver
-************************************************************************/
-static const struct v4l2_subdev_ops mt9t112_subdev_ops = {
- .core = &mt9t112_subdev_core_ops,
- .video = &mt9t112_subdev_video_ops,
- .pad = &mt9t112_subdev_pad_ops,
-};
-
-static int mt9t112_camera_probe(struct i2c_client *client)
-{
- struct mt9t112_priv *priv = to_mt9t112(client);
- const char *devname;
- int chipid;
- int ret;
-
- ret = mt9t112_s_power(&priv->subdev, 1);
- if (ret < 0)
- return ret;
-
- /*
- * check and show chip ID
- */
- mt9t112_reg_read(chipid, client, 0x0000);
-
- switch (chipid) {
- case 0x2680:
- devname = "mt9t111";
- priv->num_formats = 1;
- break;
- case 0x2682:
- devname = "mt9t112";
- priv->num_formats = ARRAY_SIZE(mt9t112_cfmts);
- break;
- default:
- dev_err(&client->dev, "Product ID error %04x\n", chipid);
- ret = -ENODEV;
- goto done;
- }
-
- dev_info(&client->dev, "%s chip ID %04x\n", devname, chipid);
-
-done:
- mt9t112_s_power(&priv->subdev, 0);
- return ret;
-}
-
-static int mt9t112_probe(struct i2c_client *client,
- const struct i2c_device_id *did)
-{
- struct mt9t112_priv *priv;
- struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client);
- struct v4l2_rect rect = {
- .width = VGA_WIDTH,
- .height = VGA_HEIGHT,
- .left = (MAX_WIDTH - VGA_WIDTH) / 2,
- .top = (MAX_HEIGHT - VGA_HEIGHT) / 2,
- };
- int ret;
-
- if (!ssdd || !ssdd->drv_priv) {
- dev_err(&client->dev, "mt9t112: missing platform data!\n");
- return -EINVAL;
- }
-
- priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- priv->info = ssdd->drv_priv;
-
- v4l2_i2c_subdev_init(&priv->subdev, client, &mt9t112_subdev_ops);
-
- priv->clk = v4l2_clk_get(&client->dev, "mclk");
- if (IS_ERR(priv->clk))
- return PTR_ERR(priv->clk);
-
- ret = mt9t112_camera_probe(client);
-
- /* Cannot fail: using the default supported pixel code */
- if (!ret)
- mt9t112_set_params(priv, &rect, MEDIA_BUS_FMT_UYVY8_2X8);
- else
- v4l2_clk_put(priv->clk);
-
- return ret;
-}
-
-static int mt9t112_remove(struct i2c_client *client)
-{
- struct mt9t112_priv *priv = to_mt9t112(client);
-
- v4l2_clk_put(priv->clk);
- return 0;
-}
-
-static const struct i2c_device_id mt9t112_id[] = {
- { "mt9t112", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, mt9t112_id);
-
-static struct i2c_driver mt9t112_i2c_driver = {
- .driver = {
- .name = "mt9t112",
- },
- .probe = mt9t112_probe,
- .remove = mt9t112_remove,
- .id_table = mt9t112_id,
-};
-
-module_i2c_driver(mt9t112_i2c_driver);
-
-MODULE_DESCRIPTION("SoC Camera driver for mt9t112");
-MODULE_AUTHOR("Kuninori Morimoto");
-MODULE_LICENSE("GPL v2");
projects / platform / kernel / linux-rpi.git / commitdiff