mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-08 17:18:05 -04:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
503
drivers/media/i2c/bt819.c
Normal file
503
drivers/media/i2c/bt819.c
Normal file
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@ -0,0 +1,503 @@
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/*
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* bt819 - BT819A VideoStream Decoder (Rockwell Part)
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*
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* Copyright (C) 1999 Mike Bernson <mike@mlb.org>
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* Copyright (C) 1998 Dave Perks <dperks@ibm.net>
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*
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* Modifications for LML33/DC10plus unified driver
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* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
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*
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* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
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* - moved over to linux>=2.4.x i2c protocol (9/9/2002)
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*
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* This code was modify/ported from the saa7111 driver written
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* by Dave Perks.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/ioctl.h>
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/videodev2.h>
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#include <linux/slab.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ctrls.h>
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#include <media/bt819.h>
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MODULE_DESCRIPTION("Brooktree-819 video decoder driver");
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MODULE_AUTHOR("Mike Bernson & Dave Perks");
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MODULE_LICENSE("GPL");
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static int debug;
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module_param(debug, int, 0);
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MODULE_PARM_DESC(debug, "Debug level (0-1)");
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/* ----------------------------------------------------------------------- */
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struct bt819 {
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struct v4l2_subdev sd;
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struct v4l2_ctrl_handler hdl;
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unsigned char reg[32];
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v4l2_std_id norm;
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int input;
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int enable;
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};
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static inline struct bt819 *to_bt819(struct v4l2_subdev *sd)
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{
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return container_of(sd, struct bt819, sd);
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}
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static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
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{
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return &container_of(ctrl->handler, struct bt819, hdl)->sd;
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}
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struct timing {
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int hactive;
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int hdelay;
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int vactive;
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int vdelay;
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int hscale;
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int vscale;
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};
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/* for values, see the bt819 datasheet */
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static struct timing timing_data[] = {
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{864 - 24, 20, 625 - 2, 1, 0x0504, 0x0000},
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{858 - 24, 20, 525 - 2, 1, 0x00f8, 0x0000},
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};
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/* ----------------------------------------------------------------------- */
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static inline int bt819_write(struct bt819 *decoder, u8 reg, u8 value)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd);
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decoder->reg[reg] = value;
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return i2c_smbus_write_byte_data(client, reg, value);
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}
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static inline int bt819_setbit(struct bt819 *decoder, u8 reg, u8 bit, u8 value)
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{
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return bt819_write(decoder, reg,
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(decoder->reg[reg] & ~(1 << bit)) | (value ? (1 << bit) : 0));
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}
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static int bt819_write_block(struct bt819 *decoder, const u8 *data, unsigned int len)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd);
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int ret = -1;
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u8 reg;
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/* the bt819 has an autoincrement function, use it if
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* the adapter understands raw I2C */
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if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
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/* do raw I2C, not smbus compatible */
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u8 block_data[32];
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int block_len;
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while (len >= 2) {
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block_len = 0;
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block_data[block_len++] = reg = data[0];
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do {
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block_data[block_len++] =
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decoder->reg[reg++] = data[1];
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len -= 2;
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data += 2;
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} while (len >= 2 && data[0] == reg && block_len < 32);
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ret = i2c_master_send(client, block_data, block_len);
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if (ret < 0)
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break;
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}
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} else {
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/* do some slow I2C emulation kind of thing */
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while (len >= 2) {
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reg = *data++;
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ret = bt819_write(decoder, reg, *data++);
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if (ret < 0)
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break;
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len -= 2;
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}
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}
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return ret;
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}
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static inline int bt819_read(struct bt819 *decoder, u8 reg)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd);
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return i2c_smbus_read_byte_data(client, reg);
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}
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static int bt819_init(struct v4l2_subdev *sd)
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{
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static unsigned char init[] = {
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/*0x1f, 0x00,*/ /* Reset */
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0x01, 0x59, /* 0x01 input format */
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0x02, 0x00, /* 0x02 temporal decimation */
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0x03, 0x12, /* 0x03 Cropping msb */
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0x04, 0x16, /* 0x04 Vertical Delay, lsb */
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0x05, 0xe0, /* 0x05 Vertical Active lsb */
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0x06, 0x80, /* 0x06 Horizontal Delay lsb */
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0x07, 0xd0, /* 0x07 Horizontal Active lsb */
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0x08, 0x00, /* 0x08 Horizontal Scaling msb */
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0x09, 0xf8, /* 0x09 Horizontal Scaling lsb */
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0x0a, 0x00, /* 0x0a Brightness control */
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0x0b, 0x30, /* 0x0b Miscellaneous control */
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0x0c, 0xd8, /* 0x0c Luma Gain lsb */
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0x0d, 0xfe, /* 0x0d Chroma Gain (U) lsb */
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0x0e, 0xb4, /* 0x0e Chroma Gain (V) msb */
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0x0f, 0x00, /* 0x0f Hue control */
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0x12, 0x04, /* 0x12 Output Format */
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0x13, 0x20, /* 0x13 Vertial Scaling msb 0x00
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chroma comb OFF, line drop scaling, interlace scaling
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BUG? Why does turning the chroma comb on fuck up color?
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Bug in the bt819 stepping on my board?
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*/
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0x14, 0x00, /* 0x14 Vertial Scaling lsb */
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0x16, 0x07, /* 0x16 Video Timing Polarity
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ACTIVE=active low
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FIELD: high=odd,
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vreset=active high,
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hreset=active high */
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0x18, 0x68, /* 0x18 AGC Delay */
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0x19, 0x5d, /* 0x19 Burst Gate Delay */
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0x1a, 0x80, /* 0x1a ADC Interface */
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};
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struct bt819 *decoder = to_bt819(sd);
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struct timing *timing = &timing_data[(decoder->norm & V4L2_STD_525_60) ? 1 : 0];
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init[0x03 * 2 - 1] =
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(((timing->vdelay >> 8) & 0x03) << 6) |
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(((timing->vactive >> 8) & 0x03) << 4) |
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(((timing->hdelay >> 8) & 0x03) << 2) |
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((timing->hactive >> 8) & 0x03);
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init[0x04 * 2 - 1] = timing->vdelay & 0xff;
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init[0x05 * 2 - 1] = timing->vactive & 0xff;
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init[0x06 * 2 - 1] = timing->hdelay & 0xff;
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init[0x07 * 2 - 1] = timing->hactive & 0xff;
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init[0x08 * 2 - 1] = timing->hscale >> 8;
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init[0x09 * 2 - 1] = timing->hscale & 0xff;
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/* 0x15 in array is address 0x19 */
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init[0x15 * 2 - 1] = (decoder->norm & V4L2_STD_625_50) ? 115 : 93; /* Chroma burst delay */
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/* reset */
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bt819_write(decoder, 0x1f, 0x00);
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mdelay(1);
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/* init */
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return bt819_write_block(decoder, init, sizeof(init));
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}
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/* ----------------------------------------------------------------------- */
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static int bt819_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pstd)
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{
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struct bt819 *decoder = to_bt819(sd);
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int status = bt819_read(decoder, 0x00);
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int res = V4L2_IN_ST_NO_SIGNAL;
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v4l2_std_id std = pstd ? *pstd : V4L2_STD_ALL;
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if ((status & 0x80))
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res = 0;
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else
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std = V4L2_STD_UNKNOWN;
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if ((status & 0x10))
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std &= V4L2_STD_PAL;
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else
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std &= V4L2_STD_NTSC;
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if (pstd)
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*pstd = std;
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if (pstatus)
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*pstatus = res;
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v4l2_dbg(1, debug, sd, "get status %x\n", status);
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return 0;
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}
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static int bt819_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
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{
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return bt819_status(sd, NULL, std);
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}
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static int bt819_g_input_status(struct v4l2_subdev *sd, u32 *status)
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{
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return bt819_status(sd, status, NULL);
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}
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static int bt819_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
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{
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struct bt819 *decoder = to_bt819(sd);
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struct timing *timing = NULL;
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v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std);
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if (sd->v4l2_dev == NULL || sd->v4l2_dev->notify == NULL)
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v4l2_err(sd, "no notify found!\n");
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if (std & V4L2_STD_NTSC) {
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v4l2_subdev_notify(sd, BT819_FIFO_RESET_LOW, NULL);
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bt819_setbit(decoder, 0x01, 0, 1);
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bt819_setbit(decoder, 0x01, 1, 0);
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bt819_setbit(decoder, 0x01, 5, 0);
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bt819_write(decoder, 0x18, 0x68);
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bt819_write(decoder, 0x19, 0x5d);
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/* bt819_setbit(decoder, 0x1a, 5, 1); */
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timing = &timing_data[1];
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} else if (std & V4L2_STD_PAL) {
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v4l2_subdev_notify(sd, BT819_FIFO_RESET_LOW, NULL);
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bt819_setbit(decoder, 0x01, 0, 1);
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bt819_setbit(decoder, 0x01, 1, 1);
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bt819_setbit(decoder, 0x01, 5, 1);
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bt819_write(decoder, 0x18, 0x7f);
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bt819_write(decoder, 0x19, 0x72);
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/* bt819_setbit(decoder, 0x1a, 5, 0); */
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timing = &timing_data[0];
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} else {
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v4l2_dbg(1, debug, sd, "unsupported norm %llx\n",
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(unsigned long long)std);
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return -EINVAL;
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}
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bt819_write(decoder, 0x03,
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(((timing->vdelay >> 8) & 0x03) << 6) |
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(((timing->vactive >> 8) & 0x03) << 4) |
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(((timing->hdelay >> 8) & 0x03) << 2) |
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((timing->hactive >> 8) & 0x03));
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bt819_write(decoder, 0x04, timing->vdelay & 0xff);
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bt819_write(decoder, 0x05, timing->vactive & 0xff);
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bt819_write(decoder, 0x06, timing->hdelay & 0xff);
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bt819_write(decoder, 0x07, timing->hactive & 0xff);
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bt819_write(decoder, 0x08, (timing->hscale >> 8) & 0xff);
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bt819_write(decoder, 0x09, timing->hscale & 0xff);
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decoder->norm = std;
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v4l2_subdev_notify(sd, BT819_FIFO_RESET_HIGH, NULL);
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return 0;
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}
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static int bt819_s_routing(struct v4l2_subdev *sd,
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u32 input, u32 output, u32 config)
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{
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struct bt819 *decoder = to_bt819(sd);
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v4l2_dbg(1, debug, sd, "set input %x\n", input);
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if (input > 7)
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return -EINVAL;
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if (sd->v4l2_dev == NULL || sd->v4l2_dev->notify == NULL)
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v4l2_err(sd, "no notify found!\n");
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if (decoder->input != input) {
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v4l2_subdev_notify(sd, BT819_FIFO_RESET_LOW, NULL);
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decoder->input = input;
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/* select mode */
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if (decoder->input == 0) {
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bt819_setbit(decoder, 0x0b, 6, 0);
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bt819_setbit(decoder, 0x1a, 1, 1);
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} else {
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bt819_setbit(decoder, 0x0b, 6, 1);
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bt819_setbit(decoder, 0x1a, 1, 0);
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}
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v4l2_subdev_notify(sd, BT819_FIFO_RESET_HIGH, NULL);
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}
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return 0;
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}
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static int bt819_s_stream(struct v4l2_subdev *sd, int enable)
|
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{
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struct bt819 *decoder = to_bt819(sd);
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v4l2_dbg(1, debug, sd, "enable output %x\n", enable);
|
||||
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if (decoder->enable != enable) {
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decoder->enable = enable;
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bt819_setbit(decoder, 0x16, 7, !enable);
|
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}
|
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return 0;
|
||||
}
|
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|
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static int bt819_s_ctrl(struct v4l2_ctrl *ctrl)
|
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{
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struct v4l2_subdev *sd = to_sd(ctrl);
|
||||
struct bt819 *decoder = to_bt819(sd);
|
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int temp;
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switch (ctrl->id) {
|
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case V4L2_CID_BRIGHTNESS:
|
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bt819_write(decoder, 0x0a, ctrl->val);
|
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break;
|
||||
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case V4L2_CID_CONTRAST:
|
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bt819_write(decoder, 0x0c, ctrl->val & 0xff);
|
||||
bt819_setbit(decoder, 0x0b, 2, ((ctrl->val >> 8) & 0x01));
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break;
|
||||
|
||||
case V4L2_CID_SATURATION:
|
||||
bt819_write(decoder, 0x0d, (ctrl->val >> 7) & 0xff);
|
||||
bt819_setbit(decoder, 0x0b, 1, ((ctrl->val >> 15) & 0x01));
|
||||
|
||||
/* Ratio between U gain and V gain must stay the same as
|
||||
the ratio between the default U and V gain values. */
|
||||
temp = (ctrl->val * 180) / 254;
|
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bt819_write(decoder, 0x0e, (temp >> 7) & 0xff);
|
||||
bt819_setbit(decoder, 0x0b, 0, (temp >> 15) & 0x01);
|
||||
break;
|
||||
|
||||
case V4L2_CID_HUE:
|
||||
bt819_write(decoder, 0x0f, ctrl->val);
|
||||
break;
|
||||
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
|
||||
static const struct v4l2_ctrl_ops bt819_ctrl_ops = {
|
||||
.s_ctrl = bt819_s_ctrl,
|
||||
};
|
||||
|
||||
static const struct v4l2_subdev_core_ops bt819_core_ops = {
|
||||
.g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
|
||||
.try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
|
||||
.s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
|
||||
.g_ctrl = v4l2_subdev_g_ctrl,
|
||||
.s_ctrl = v4l2_subdev_s_ctrl,
|
||||
.queryctrl = v4l2_subdev_queryctrl,
|
||||
.querymenu = v4l2_subdev_querymenu,
|
||||
};
|
||||
|
||||
static const struct v4l2_subdev_video_ops bt819_video_ops = {
|
||||
.s_std = bt819_s_std,
|
||||
.s_routing = bt819_s_routing,
|
||||
.s_stream = bt819_s_stream,
|
||||
.querystd = bt819_querystd,
|
||||
.g_input_status = bt819_g_input_status,
|
||||
};
|
||||
|
||||
static const struct v4l2_subdev_ops bt819_ops = {
|
||||
.core = &bt819_core_ops,
|
||||
.video = &bt819_video_ops,
|
||||
};
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
|
||||
static int bt819_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
int i, ver;
|
||||
struct bt819 *decoder;
|
||||
struct v4l2_subdev *sd;
|
||||
const char *name;
|
||||
|
||||
/* Check if the adapter supports the needed features */
|
||||
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
|
||||
return -ENODEV;
|
||||
|
||||
decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL);
|
||||
if (decoder == NULL)
|
||||
return -ENOMEM;
|
||||
sd = &decoder->sd;
|
||||
v4l2_i2c_subdev_init(sd, client, &bt819_ops);
|
||||
|
||||
ver = bt819_read(decoder, 0x17);
|
||||
switch (ver & 0xf0) {
|
||||
case 0x70:
|
||||
name = "bt819a";
|
||||
break;
|
||||
case 0x60:
|
||||
name = "bt817a";
|
||||
break;
|
||||
case 0x20:
|
||||
name = "bt815a";
|
||||
break;
|
||||
default:
|
||||
v4l2_dbg(1, debug, sd,
|
||||
"unknown chip version 0x%02x\n", ver);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
v4l_info(client, "%s found @ 0x%x (%s)\n", name,
|
||||
client->addr << 1, client->adapter->name);
|
||||
|
||||
decoder->norm = V4L2_STD_NTSC;
|
||||
decoder->input = 0;
|
||||
decoder->enable = 1;
|
||||
|
||||
i = bt819_init(sd);
|
||||
if (i < 0)
|
||||
v4l2_dbg(1, debug, sd, "init status %d\n", i);
|
||||
|
||||
v4l2_ctrl_handler_init(&decoder->hdl, 4);
|
||||
v4l2_ctrl_new_std(&decoder->hdl, &bt819_ctrl_ops,
|
||||
V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
|
||||
v4l2_ctrl_new_std(&decoder->hdl, &bt819_ctrl_ops,
|
||||
V4L2_CID_CONTRAST, 0, 511, 1, 0xd8);
|
||||
v4l2_ctrl_new_std(&decoder->hdl, &bt819_ctrl_ops,
|
||||
V4L2_CID_SATURATION, 0, 511, 1, 0xfe);
|
||||
v4l2_ctrl_new_std(&decoder->hdl, &bt819_ctrl_ops,
|
||||
V4L2_CID_HUE, -128, 127, 1, 0);
|
||||
sd->ctrl_handler = &decoder->hdl;
|
||||
if (decoder->hdl.error) {
|
||||
int err = decoder->hdl.error;
|
||||
|
||||
v4l2_ctrl_handler_free(&decoder->hdl);
|
||||
return err;
|
||||
}
|
||||
v4l2_ctrl_handler_setup(&decoder->hdl);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int bt819_remove(struct i2c_client *client)
|
||||
{
|
||||
struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
||||
struct bt819 *decoder = to_bt819(sd);
|
||||
|
||||
v4l2_device_unregister_subdev(sd);
|
||||
v4l2_ctrl_handler_free(&decoder->hdl);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* ----------------------------------------------------------------------- */
|
||||
|
||||
static const struct i2c_device_id bt819_id[] = {
|
||||
{ "bt819a", 0 },
|
||||
{ "bt817a", 0 },
|
||||
{ "bt815a", 0 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, bt819_id);
|
||||
|
||||
static struct i2c_driver bt819_driver = {
|
||||
.driver = {
|
||||
.owner = THIS_MODULE,
|
||||
.name = "bt819",
|
||||
},
|
||||
.probe = bt819_probe,
|
||||
.remove = bt819_remove,
|
||||
.id_table = bt819_id,
|
||||
};
|
||||
|
||||
module_i2c_driver(bt819_driver);
|
||||
Loading…
Add table
Add a link
Reference in a new issue