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author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-14 21:23:43 +0200 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-15 21:42:14 +0200 |
commit | cb7a01ac324bf2ee2c666f37ac867e4135f9785a (patch) | |
tree | 7246b915a9334d4bc823c93ba9acab65ef882678 /drivers/media/video/saa7110.c | |
parent | [media] reorganize the API core items (diff) | |
download | linux-cb7a01ac324bf2ee2c666f37ac867e4135f9785a.tar.xz linux-cb7a01ac324bf2ee2c666f37ac867e4135f9785a.zip |
[media] move i2c files into drivers/media/i2c
Move ancillary I2C drivers into drivers/media/i2c, in order to
better organize them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/saa7110.c')
-rw-r--r-- | drivers/media/video/saa7110.c | 494 |
1 files changed, 0 insertions, 494 deletions
diff --git a/drivers/media/video/saa7110.c b/drivers/media/video/saa7110.c deleted file mode 100644 index 51cd4c8f0520..000000000000 --- a/drivers/media/video/saa7110.c +++ /dev/null @@ -1,494 +0,0 @@ -/* - * saa7110 - Philips SAA7110(A) video decoder driver - * - * Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl> - * - * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net> - * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> - * - some corrections for Pinnacle Systems Inc. DC10plus card. - * - * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net> - * - moved over to linux>=2.4.x i2c protocol (1/1/2003) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/types.h> -#include <linux/delay.h> -#include <linux/slab.h> -#include <linux/wait.h> -#include <asm/uaccess.h> -#include <linux/i2c.h> -#include <linux/videodev2.h> -#include <media/v4l2-device.h> -#include <media/v4l2-chip-ident.h> -#include <media/v4l2-ctrls.h> - -MODULE_DESCRIPTION("Philips SAA7110 video decoder driver"); -MODULE_AUTHOR("Pauline Middelink"); -MODULE_LICENSE("GPL"); - - -static int debug; -module_param(debug, int, 0); -MODULE_PARM_DESC(debug, "Debug level (0-1)"); - -#define SAA7110_MAX_INPUT 9 /* 6 CVBS, 3 SVHS */ -#define SAA7110_MAX_OUTPUT 1 /* 1 YUV */ - -#define SAA7110_NR_REG 0x35 - -struct saa7110 { - struct v4l2_subdev sd; - struct v4l2_ctrl_handler hdl; - u8 reg[SAA7110_NR_REG]; - - v4l2_std_id norm; - int input; - int enable; - - wait_queue_head_t wq; -}; - -static inline struct saa7110 *to_saa7110(struct v4l2_subdev *sd) -{ - return container_of(sd, struct saa7110, sd); -} - -static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) -{ - return &container_of(ctrl->handler, struct saa7110, hdl)->sd; -} - -/* ----------------------------------------------------------------------- */ -/* I2C support functions */ -/* ----------------------------------------------------------------------- */ - -static int saa7110_write(struct v4l2_subdev *sd, u8 reg, u8 value) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct saa7110 *decoder = to_saa7110(sd); - - decoder->reg[reg] = value; - return i2c_smbus_write_byte_data(client, reg, value); -} - -static int saa7110_write_block(struct v4l2_subdev *sd, const u8 *data, unsigned int len) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct saa7110 *decoder = to_saa7110(sd); - int ret = -1; - u8 reg = *data; /* first register to write to */ - - /* Sanity check */ - if (reg + (len - 1) > SAA7110_NR_REG) - return ret; - - /* the saa7110 has an autoincrement function, use it if - * the adapter understands raw I2C */ - if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { - ret = i2c_master_send(client, data, len); - - /* Cache the written data */ - memcpy(decoder->reg + reg, data + 1, len - 1); - } else { - for (++data, --len; len; len--) { - ret = saa7110_write(sd, reg++, *data++); - if (ret < 0) - break; - } - } - - return ret; -} - -static inline int saa7110_read(struct v4l2_subdev *sd) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return i2c_smbus_read_byte(client); -} - -/* ----------------------------------------------------------------------- */ -/* SAA7110 functions */ -/* ----------------------------------------------------------------------- */ - -#define FRESP_06H_COMPST 0x03 /*0x13*/ -#define FRESP_06H_SVIDEO 0x83 /*0xC0*/ - - -static int saa7110_selmux(struct v4l2_subdev *sd, int chan) -{ - static const unsigned char modes[9][8] = { - /* mode 0 */ - {FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03, - 0x44, 0x75, 0x16}, - /* mode 1 */ - {FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03, - 0x44, 0x75, 0x16}, - /* mode 2 */ - {FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03, - 0x60, 0xB5, 0x05}, - /* mode 3 */ - {FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03, - 0x60, 0xB5, 0x05}, - /* mode 4 */ - {FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83, - 0x60, 0xB5, 0x03}, - /* mode 5 */ - {FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83, - 0x60, 0xB5, 0x03}, - /* mode 6 */ - {FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3, - 0x44, 0x75, 0x12}, - /* mode 7 */ - {FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13, - 0x60, 0xB5, 0x14}, - /* mode 8 */ - {FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23, - 0x44, 0x75, 0x21} - }; - struct saa7110 *decoder = to_saa7110(sd); - const unsigned char *ptr = modes[chan]; - - saa7110_write(sd, 0x06, ptr[0]); /* Luminance control */ - saa7110_write(sd, 0x20, ptr[1]); /* Analog Control #1 */ - saa7110_write(sd, 0x21, ptr[2]); /* Analog Control #2 */ - saa7110_write(sd, 0x22, ptr[3]); /* Mixer Control #1 */ - saa7110_write(sd, 0x2C, ptr[4]); /* Mixer Control #2 */ - saa7110_write(sd, 0x30, ptr[5]); /* ADCs gain control */ - saa7110_write(sd, 0x31, ptr[6]); /* Mixer Control #3 */ - saa7110_write(sd, 0x21, ptr[7]); /* Analog Control #2 */ - decoder->input = chan; - - return 0; -} - -static const unsigned char initseq[1 + SAA7110_NR_REG] = { - 0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00, - /* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90, - /* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA, - /* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - /* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F, - /* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C, - /* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02 -}; - -static v4l2_std_id determine_norm(struct v4l2_subdev *sd) -{ - DEFINE_WAIT(wait); - struct saa7110 *decoder = to_saa7110(sd); - int status; - - /* mode changed, start automatic detection */ - saa7110_write_block(sd, initseq, sizeof(initseq)); - saa7110_selmux(sd, decoder->input); - prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE); - schedule_timeout(msecs_to_jiffies(250)); - finish_wait(&decoder->wq, &wait); - status = saa7110_read(sd); - if (status & 0x40) { - v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status); - return decoder->norm; /* no change*/ - } - if ((status & 3) == 0) { - saa7110_write(sd, 0x06, 0x83); - if (status & 0x20) { - v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC/no color)\n", status); - /*saa7110_write(sd,0x2E,0x81);*/ - return V4L2_STD_NTSC; - } - v4l2_dbg(1, debug, sd, "status=0x%02x (PAL/no color)\n", status); - /*saa7110_write(sd,0x2E,0x9A);*/ - return V4L2_STD_PAL; - } - /*saa7110_write(sd,0x06,0x03);*/ - if (status & 0x20) { /* 60Hz */ - v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC)\n", status); - saa7110_write(sd, 0x0D, 0x86); - saa7110_write(sd, 0x0F, 0x50); - saa7110_write(sd, 0x11, 0x2C); - /*saa7110_write(sd,0x2E,0x81);*/ - return V4L2_STD_NTSC; - } - - /* 50Hz -> PAL/SECAM */ - saa7110_write(sd, 0x0D, 0x86); - saa7110_write(sd, 0x0F, 0x10); - saa7110_write(sd, 0x11, 0x59); - /*saa7110_write(sd,0x2E,0x9A);*/ - - prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE); - schedule_timeout(msecs_to_jiffies(250)); - finish_wait(&decoder->wq, &wait); - - status = saa7110_read(sd); - if ((status & 0x03) == 0x01) { - v4l2_dbg(1, debug, sd, "status=0x%02x (SECAM)\n", status); - saa7110_write(sd, 0x0D, 0x87); - return V4L2_STD_SECAM; - } - v4l2_dbg(1, debug, sd, "status=0x%02x (PAL)\n", status); - return V4L2_STD_PAL; -} - -static int saa7110_g_input_status(struct v4l2_subdev *sd, u32 *pstatus) -{ - struct saa7110 *decoder = to_saa7110(sd); - int res = V4L2_IN_ST_NO_SIGNAL; - int status = saa7110_read(sd); - - v4l2_dbg(1, debug, sd, "status=0x%02x norm=%llx\n", - status, (unsigned long long)decoder->norm); - if (!(status & 0x40)) - res = 0; - if (!(status & 0x03)) - res |= V4L2_IN_ST_NO_COLOR; - - *pstatus = res; - return 0; -} - -static int saa7110_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) -{ - *(v4l2_std_id *)std = determine_norm(sd); - return 0; -} - -static int saa7110_s_std(struct v4l2_subdev *sd, v4l2_std_id std) -{ - struct saa7110 *decoder = to_saa7110(sd); - - if (decoder->norm != std) { - decoder->norm = std; - /*saa7110_write(sd, 0x06, 0x03);*/ - if (std & V4L2_STD_NTSC) { - saa7110_write(sd, 0x0D, 0x86); - saa7110_write(sd, 0x0F, 0x50); - saa7110_write(sd, 0x11, 0x2C); - /*saa7110_write(sd, 0x2E, 0x81);*/ - v4l2_dbg(1, debug, sd, "switched to NTSC\n"); - } else if (std & V4L2_STD_PAL) { - saa7110_write(sd, 0x0D, 0x86); - saa7110_write(sd, 0x0F, 0x10); - saa7110_write(sd, 0x11, 0x59); - /*saa7110_write(sd, 0x2E, 0x9A);*/ - v4l2_dbg(1, debug, sd, "switched to PAL\n"); - } else if (std & V4L2_STD_SECAM) { - saa7110_write(sd, 0x0D, 0x87); - saa7110_write(sd, 0x0F, 0x10); - saa7110_write(sd, 0x11, 0x59); - /*saa7110_write(sd, 0x2E, 0x9A);*/ - v4l2_dbg(1, debug, sd, "switched to SECAM\n"); - } else { - return -EINVAL; - } - } - return 0; -} - -static int saa7110_s_routing(struct v4l2_subdev *sd, - u32 input, u32 output, u32 config) -{ - struct saa7110 *decoder = to_saa7110(sd); - - if (input >= SAA7110_MAX_INPUT) { - v4l2_dbg(1, debug, sd, "input=%d not available\n", input); - return -EINVAL; - } - if (decoder->input != input) { - saa7110_selmux(sd, input); - v4l2_dbg(1, debug, sd, "switched to input=%d\n", input); - } - return 0; -} - -static int saa7110_s_stream(struct v4l2_subdev *sd, int enable) -{ - struct saa7110 *decoder = to_saa7110(sd); - - if (decoder->enable != enable) { - decoder->enable = enable; - saa7110_write(sd, 0x0E, enable ? 0x18 : 0x80); - v4l2_dbg(1, debug, sd, "YUV %s\n", enable ? "on" : "off"); - } - return 0; -} - -static int saa7110_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct v4l2_subdev *sd = to_sd(ctrl); - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - saa7110_write(sd, 0x19, ctrl->val); - break; - case V4L2_CID_CONTRAST: - saa7110_write(sd, 0x13, ctrl->val); - break; - case V4L2_CID_SATURATION: - saa7110_write(sd, 0x12, ctrl->val); - break; - case V4L2_CID_HUE: - saa7110_write(sd, 0x07, ctrl->val); - break; - default: - return -EINVAL; - } - return 0; -} - -static int saa7110_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7110, 0); -} - -/* ----------------------------------------------------------------------- */ - -static const struct v4l2_ctrl_ops saa7110_ctrl_ops = { - .s_ctrl = saa7110_s_ctrl, -}; - -static const struct v4l2_subdev_core_ops saa7110_core_ops = { - .g_chip_ident = saa7110_g_chip_ident, - .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, - .s_std = saa7110_s_std, -}; - -static const struct v4l2_subdev_video_ops saa7110_video_ops = { - .s_routing = saa7110_s_routing, - .s_stream = saa7110_s_stream, - .querystd = saa7110_querystd, - .g_input_status = saa7110_g_input_status, -}; - -static const struct v4l2_subdev_ops saa7110_ops = { - .core = &saa7110_core_ops, - .video = &saa7110_video_ops, -}; - -/* ----------------------------------------------------------------------- */ - -static int saa7110_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct saa7110 *decoder; - struct v4l2_subdev *sd; - int rv; - - /* Check if the adapter supports the needed features */ - if (!i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) - return -ENODEV; - - v4l_info(client, "chip found @ 0x%x (%s)\n", - client->addr << 1, client->adapter->name); - - decoder = kzalloc(sizeof(struct saa7110), GFP_KERNEL); - if (!decoder) - return -ENOMEM; - sd = &decoder->sd; - v4l2_i2c_subdev_init(sd, client, &saa7110_ops); - decoder->norm = V4L2_STD_PAL; - decoder->input = 0; - decoder->enable = 1; - v4l2_ctrl_handler_init(&decoder->hdl, 2); - v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops, - V4L2_CID_BRIGHTNESS, 0, 255, 1, 128); - v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops, - V4L2_CID_CONTRAST, 0, 127, 1, 64); - v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops, - V4L2_CID_SATURATION, 0, 127, 1, 64); - v4l2_ctrl_new_std(&decoder->hdl, &saa7110_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); - kfree(decoder); - return err; - } - v4l2_ctrl_handler_setup(&decoder->hdl); - - init_waitqueue_head(&decoder->wq); - - rv = saa7110_write_block(sd, initseq, sizeof(initseq)); - if (rv < 0) { - v4l2_dbg(1, debug, sd, "init status %d\n", rv); - } else { - int ver, status; - saa7110_write(sd, 0x21, 0x10); - saa7110_write(sd, 0x0e, 0x18); - saa7110_write(sd, 0x0D, 0x04); - ver = saa7110_read(sd); - saa7110_write(sd, 0x0D, 0x06); - /*mdelay(150);*/ - status = saa7110_read(sd); - v4l2_dbg(1, debug, sd, "version %x, status=0x%02x\n", - ver, status); - saa7110_write(sd, 0x0D, 0x86); - saa7110_write(sd, 0x0F, 0x10); - saa7110_write(sd, 0x11, 0x59); - /*saa7110_write(sd, 0x2E, 0x9A);*/ - } - - /*saa7110_selmux(sd,0);*/ - /*determine_norm(sd);*/ - /* setup and implicit mode 0 select has been performed */ - - return 0; -} - -static int saa7110_remove(struct i2c_client *client) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct saa7110 *decoder = to_saa7110(sd); - - v4l2_device_unregister_subdev(sd); - v4l2_ctrl_handler_free(&decoder->hdl); - kfree(decoder); - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static const struct i2c_device_id saa7110_id[] = { - { "saa7110", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, saa7110_id); - -static struct i2c_driver saa7110_driver = { - .driver = { - .owner = THIS_MODULE, - .name = "saa7110", - }, - .probe = saa7110_probe, - .remove = saa7110_remove, - .id_table = saa7110_id, -}; - -module_i2c_driver(saa7110_driver); |