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[media] em28xx: move sensor code to a separate source code file em28xx-camera.c
em28xx-cards.c is very large and the sensor/camera related code is growing, so move this code to a separate source code file em28xx-camera.c. Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Frank Schaefer
Mauro Carvalho Chehab
parent
b3944c8f67
commit
855ff38e88
@ -1,5 +1,5 @@
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em28xx-y += em28xx-video.o em28xx-i2c.o em28xx-cards.o
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em28xx-y += em28xx-core.o em28xx-vbi.o
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em28xx-y += em28xx-core.o em28xx-vbi.o em28xx-camera.o
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em28xx-alsa-objs := em28xx-audio.o
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em28xx-rc-objs := em28xx-input.o
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189
drivers/media/usb/em28xx/em28xx-camera.c
Normal file
189
drivers/media/usb/em28xx/em28xx-camera.c
Normal file
@ -0,0 +1,189 @@
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/*
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em28xx-camera.c - driver for Empia EM25xx/27xx/28xx USB video capture devices
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Copyright (C) 2009 Mauro Carvalho Chehab <mchehab@infradead.org>
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Copyright (C) 2013 Frank Schäfer <fschaefer.oss@googlemail.com>
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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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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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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/i2c.h>
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#include <media/mt9v011.h>
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#include <media/v4l2-common.h>
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#include "em28xx.h"
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/* FIXME: Should be replaced by a proper mt9m111 driver */
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static int em28xx_initialize_mt9m111(struct em28xx *dev)
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{
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int i;
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unsigned char regs[][3] = {
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{ 0x0d, 0x00, 0x01, }, /* reset and use defaults */
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{ 0x0d, 0x00, 0x00, },
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{ 0x0a, 0x00, 0x21, },
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{ 0x21, 0x04, 0x00, }, /* full readout speed, no row/col skipping */
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};
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for (i = 0; i < ARRAY_SIZE(regs); i++)
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i2c_master_send(&dev->i2c_client[dev->def_i2c_bus],
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®s[i][0], 3);
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return 0;
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}
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/* FIXME: Should be replaced by a proper mt9m001 driver */
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static int em28xx_initialize_mt9m001(struct em28xx *dev)
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{
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int i;
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unsigned char regs[][3] = {
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{ 0x0d, 0x00, 0x01, },
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{ 0x0d, 0x00, 0x00, },
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{ 0x04, 0x05, 0x00, }, /* hres = 1280 */
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{ 0x03, 0x04, 0x00, }, /* vres = 1024 */
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{ 0x20, 0x11, 0x00, },
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{ 0x06, 0x00, 0x10, },
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{ 0x2b, 0x00, 0x24, },
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{ 0x2e, 0x00, 0x24, },
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{ 0x35, 0x00, 0x24, },
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{ 0x2d, 0x00, 0x20, },
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{ 0x2c, 0x00, 0x20, },
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{ 0x09, 0x0a, 0xd4, },
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{ 0x35, 0x00, 0x57, },
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};
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for (i = 0; i < ARRAY_SIZE(regs); i++)
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i2c_master_send(&dev->i2c_client[dev->def_i2c_bus],
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®s[i][0], 3);
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return 0;
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}
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/*
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* This method works for webcams with Micron sensors
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*/
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int em28xx_detect_sensor(struct em28xx *dev)
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{
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int ret;
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char *name;
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u8 reg;
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__be16 id_be;
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u16 id;
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/* Micron sensor detection */
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dev->i2c_client[dev->def_i2c_bus].addr = 0xba >> 1;
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reg = 0;
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i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], ®, 1);
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ret = i2c_master_recv(&dev->i2c_client[dev->def_i2c_bus],
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(char *)&id_be, 2);
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if (ret != 2)
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return -EINVAL;
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id = be16_to_cpu(id_be);
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switch (id) {
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case 0x8232: /* mt9v011 640x480 1.3 Mpix sensor */
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case 0x8243: /* mt9v011 rev B 640x480 1.3 Mpix sensor */
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name = "mt9v011";
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dev->em28xx_sensor = EM28XX_MT9V011;
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break;
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case 0x143a: /* MT9M111 as found in the ECS G200 */
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name = "mt9m111";
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dev->em28xx_sensor = EM28XX_MT9M111;
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break;
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case 0x8431:
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name = "mt9m001";
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dev->em28xx_sensor = EM28XX_MT9M001;
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break;
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default:
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em28xx_info("unknown Micron sensor detected: 0x%04x\n", id);
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return -EINVAL;
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}
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em28xx_info("sensor %s detected\n", name);
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return 0;
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}
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int em28xx_init_camera(struct em28xx *dev)
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{
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switch (dev->em28xx_sensor) {
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case EM28XX_MT9V011:
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{
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struct mt9v011_platform_data pdata;
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struct i2c_board_info mt9v011_info = {
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.type = "mt9v011",
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.addr = dev->i2c_client[dev->def_i2c_bus].addr,
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.platform_data = &pdata,
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};
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dev->sensor_xres = 640;
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dev->sensor_yres = 480;
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/*
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* FIXME: mt9v011 uses I2S speed as xtal clk - at least with
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* the Silvercrest cam I have here for testing - for higher
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* resolutions, a high clock cause horizontal artifacts, so we
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* need to use a lower xclk frequency.
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* Yet, it would be possible to adjust xclk depending on the
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* desired resolution, since this affects directly the
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* frame rate.
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*/
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dev->board.xclk = EM28XX_XCLK_FREQUENCY_4_3MHZ;
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em28xx_write_reg(dev, EM28XX_R0F_XCLK, dev->board.xclk);
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dev->sensor_xtal = 4300000;
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pdata.xtal = dev->sensor_xtal;
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if (NULL ==
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v4l2_i2c_new_subdev_board(&dev->v4l2_dev,
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&dev->i2c_adap[dev->def_i2c_bus],
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&mt9v011_info, NULL))
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return -ENODEV;
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/* probably means GRGB 16 bit bayer */
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dev->vinmode = 0x0d;
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dev->vinctl = 0x00;
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break;
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}
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case EM28XX_MT9M001:
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dev->sensor_xres = 1280;
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dev->sensor_yres = 1024;
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em28xx_initialize_mt9m001(dev);
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/* probably means BGGR 16 bit bayer */
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dev->vinmode = 0x0c;
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dev->vinctl = 0x00;
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break;
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case EM28XX_MT9M111:
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dev->sensor_xres = 640;
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dev->sensor_yres = 512;
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dev->board.xclk = EM28XX_XCLK_FREQUENCY_48MHZ;
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em28xx_write_reg(dev, EM28XX_R0F_XCLK, dev->board.xclk);
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em28xx_initialize_mt9m111(dev);
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dev->vinmode = 0x0a;
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dev->vinctl = 0x00;
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break;
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case EM28XX_NOSENSOR:
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default:
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return -EINVAL;
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}
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return 0;
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}
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@ -34,7 +34,6 @@
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#include <media/saa7115.h>
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#include <media/tvp5150.h>
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#include <media/tvaudio.h>
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#include <media/mt9v011.h>
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#include <media/i2c-addr.h>
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#include <media/tveeprom.h>
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#include <media/v4l2-common.h>
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@ -2264,95 +2263,6 @@ static inline void em28xx_set_model(struct em28xx *dev)
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dev->def_i2c_bus = dev->board.def_i2c_bus;
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}
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/* FIXME: Should be replaced by a proper mt9m111 driver */
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static int em28xx_initialize_mt9m111(struct em28xx *dev)
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{
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int i;
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unsigned char regs[][3] = {
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{ 0x0d, 0x00, 0x01, }, /* reset and use defaults */
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{ 0x0d, 0x00, 0x00, },
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{ 0x0a, 0x00, 0x21, },
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{ 0x21, 0x04, 0x00, }, /* full readout speed, no row/col skipping */
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};
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for (i = 0; i < ARRAY_SIZE(regs); i++)
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i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], ®s[i][0], 3);
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return 0;
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}
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/* FIXME: Should be replaced by a proper mt9m001 driver */
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static int em28xx_initialize_mt9m001(struct em28xx *dev)
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{
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int i;
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unsigned char regs[][3] = {
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{ 0x0d, 0x00, 0x01, },
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{ 0x0d, 0x00, 0x00, },
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{ 0x04, 0x05, 0x00, }, /* hres = 1280 */
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{ 0x03, 0x04, 0x00, }, /* vres = 1024 */
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{ 0x20, 0x11, 0x00, },
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{ 0x06, 0x00, 0x10, },
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{ 0x2b, 0x00, 0x24, },
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{ 0x2e, 0x00, 0x24, },
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{ 0x35, 0x00, 0x24, },
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{ 0x2d, 0x00, 0x20, },
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{ 0x2c, 0x00, 0x20, },
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{ 0x09, 0x0a, 0xd4, },
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{ 0x35, 0x00, 0x57, },
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};
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for (i = 0; i < ARRAY_SIZE(regs); i++)
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i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], ®s[i][0], 3);
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return 0;
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}
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/*
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* This method works for webcams with Micron sensors
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*/
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static int em28xx_detect_sensor(struct em28xx *dev)
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{
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int rc;
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char *sensor_name;
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unsigned char cmd;
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__be16 version_be;
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u16 version;
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/* Micron sensor detection */
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dev->i2c_client[dev->def_i2c_bus].addr = 0xba >> 1;
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cmd = 0;
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i2c_master_send(&dev->i2c_client[dev->def_i2c_bus], &cmd, 1);
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rc = i2c_master_recv(&dev->i2c_client[dev->def_i2c_bus], (char *)&version_be, 2);
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if (rc != 2)
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return -EINVAL;
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version = be16_to_cpu(version_be);
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switch (version) {
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case 0x8232: /* mt9v011 640x480 1.3 Mpix sensor */
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case 0x8243: /* mt9v011 rev B 640x480 1.3 Mpix sensor */
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sensor_name = "mt9v011";
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dev->em28xx_sensor = EM28XX_MT9V011;
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break;
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case 0x143a: /* MT9M111 as found in the ECS G200 */
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sensor_name = "mt9m111";
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dev->em28xx_sensor = EM28XX_MT9M111;
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break;
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case 0x8431:
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sensor_name = "mt9m001";
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dev->em28xx_sensor = EM28XX_MT9M001;
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break;
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default:
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printk("Unknown Micron Sensor 0x%04x\n", version);
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return -EINVAL;
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}
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em28xx_info("sensor %s detected\n", sensor_name);
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return 0;
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}
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/* Since em28xx_pre_card_setup() requires a proper dev->model,
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* this won't work for boards with generic PCI IDs
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*/
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@ -2574,76 +2484,6 @@ static void em28xx_tuner_setup(struct em28xx *dev)
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v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
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}
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static int em28xx_init_camera(struct em28xx *dev)
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{
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switch (dev->em28xx_sensor) {
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case EM28XX_MT9V011:
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{
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struct mt9v011_platform_data pdata;
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struct i2c_board_info mt9v011_info = {
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.type = "mt9v011",
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.addr = dev->i2c_client[dev->def_i2c_bus].addr,
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.platform_data = &pdata,
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};
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dev->sensor_xres = 640;
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dev->sensor_yres = 480;
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/*
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* FIXME: mt9v011 uses I2S speed as xtal clk - at least with
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* the Silvercrest cam I have here for testing - for higher
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* resolutions, a high clock cause horizontal artifacts, so we
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* need to use a lower xclk frequency.
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* Yet, it would be possible to adjust xclk depending on the
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* desired resolution, since this affects directly the
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* frame rate.
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*/
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dev->board.xclk = EM28XX_XCLK_FREQUENCY_4_3MHZ;
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em28xx_write_reg(dev, EM28XX_R0F_XCLK, dev->board.xclk);
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dev->sensor_xtal = 4300000;
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pdata.xtal = dev->sensor_xtal;
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if (NULL ==
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v4l2_i2c_new_subdev_board(&dev->v4l2_dev,
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&dev->i2c_adap[dev->def_i2c_bus],
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&mt9v011_info, NULL))
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return -ENODEV;
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/* probably means GRGB 16 bit bayer */
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dev->vinmode = 0x0d;
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dev->vinctl = 0x00;
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break;
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}
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case EM28XX_MT9M001:
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dev->sensor_xres = 1280;
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dev->sensor_yres = 1024;
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em28xx_initialize_mt9m001(dev);
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/* probably means BGGR 16 bit bayer */
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dev->vinmode = 0x0c;
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dev->vinctl = 0x00;
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break;
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case EM28XX_MT9M111:
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dev->sensor_xres = 640;
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dev->sensor_yres = 512;
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dev->board.xclk = EM28XX_XCLK_FREQUENCY_48MHZ;
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em28xx_write_reg(dev, EM28XX_R0F_XCLK, dev->board.xclk);
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em28xx_initialize_mt9m111(dev);
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dev->vinmode = 0x0a;
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dev->vinctl = 0x00;
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break;
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case EM28XX_NOSENSOR:
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int em28xx_hint_board(struct em28xx *dev)
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{
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int i;
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@ -722,6 +722,10 @@ void em28xx_release_resources(struct em28xx *dev);
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/* Provided by em28xx-vbi.c */
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extern struct vb2_ops em28xx_vbi_qops;
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/* Provided by em28xx-camera.c */
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int em28xx_detect_sensor(struct em28xx *dev);
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int em28xx_init_camera(struct em28xx *dev);
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/* printk macros */
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#define em28xx_err(fmt, arg...) do {\
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