diff options
Diffstat (limited to 'drivers/media/video/bt819.c')
| -rw-r--r-- | drivers/media/video/bt819.c | 517 |
1 files changed, 0 insertions, 517 deletions
diff --git a/drivers/media/video/bt819.c b/drivers/media/video/bt819.c deleted file mode 100644 index 377bf05b1efd..000000000000 --- a/drivers/media/video/bt819.c +++ /dev/null @@ -1,517 +0,0 @@ -/* - * bt819 - BT819A VideoStream Decoder (Rockwell Part) - * - * Copyright (C) 1999 Mike Bernson <mike@mlb.org> - * Copyright (C) 1998 Dave Perks <dperks@ibm.net> - * - * Modifications for LML33/DC10plus unified driver - * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx> - * - * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net> - * - moved over to linux>=2.4.x i2c protocol (9/9/2002) - * - * This code was modify/ported from the saa7111 driver written - * by Dave Perks. - * - * 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/types.h> -#include <linux/ioctl.h> -#include <linux/delay.h> -#include <linux/i2c.h> -#include <linux/videodev2.h> -#include <linux/slab.h> -#include <media/v4l2-device.h> -#include <media/v4l2-chip-ident.h> -#include <media/v4l2-ctrls.h> -#include <media/bt819.h> - -MODULE_DESCRIPTION("Brooktree-819 video decoder driver"); -MODULE_AUTHOR("Mike Bernson & Dave Perks"); -MODULE_LICENSE("GPL"); - -static int debug; -module_param(debug, int, 0); -MODULE_PARM_DESC(debug, "Debug level (0-1)"); - - -/* ----------------------------------------------------------------------- */ - -struct bt819 { - struct v4l2_subdev sd; - struct v4l2_ctrl_handler hdl; - unsigned char reg[32]; - - v4l2_std_id norm; - int ident; - int input; - int enable; -}; - -static inline struct bt819 *to_bt819(struct v4l2_subdev *sd) -{ - return container_of(sd, struct bt819, sd); -} - -static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) -{ - return &container_of(ctrl->handler, struct bt819, hdl)->sd; -} - -struct timing { - int hactive; - int hdelay; - int vactive; - int vdelay; - int hscale; - int vscale; -}; - -/* for values, see the bt819 datasheet */ -static struct timing timing_data[] = { - {864 - 24, 20, 625 - 2, 1, 0x0504, 0x0000}, - {858 - 24, 20, 525 - 2, 1, 0x00f8, 0x0000}, -}; - -/* ----------------------------------------------------------------------- */ - -static inline int bt819_write(struct bt819 *decoder, u8 reg, u8 value) -{ - struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd); - - decoder->reg[reg] = value; - return i2c_smbus_write_byte_data(client, reg, value); -} - -static inline int bt819_setbit(struct bt819 *decoder, u8 reg, u8 bit, u8 value) -{ - return bt819_write(decoder, reg, - (decoder->reg[reg] & ~(1 << bit)) | (value ? (1 << bit) : 0)); -} - -static int bt819_write_block(struct bt819 *decoder, const u8 *data, unsigned int len) -{ - struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd); - int ret = -1; - u8 reg; - - /* the bt819 has an autoincrement function, use it if - * the adapter understands raw I2C */ - if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { - /* do raw I2C, not smbus compatible */ - u8 block_data[32]; - int block_len; - - while (len >= 2) { - block_len = 0; - block_data[block_len++] = reg = data[0]; - do { - block_data[block_len++] = - decoder->reg[reg++] = data[1]; - len -= 2; - data += 2; - } while (len >= 2 && data[0] == reg && block_len < 32); - ret = i2c_master_send(client, block_data, block_len); - if (ret < 0) - break; - } - } else { - /* do some slow I2C emulation kind of thing */ - while (len >= 2) { - reg = *data++; - ret = bt819_write(decoder, reg, *data++); - if (ret < 0) - break; - len -= 2; - } - } - - return ret; -} - -static inline int bt819_read(struct bt819 *decoder, u8 reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(&decoder->sd); - - return i2c_smbus_read_byte_data(client, reg); -} - -static int bt819_init(struct v4l2_subdev *sd) -{ - static unsigned char init[] = { - /*0x1f, 0x00,*/ /* Reset */ - 0x01, 0x59, /* 0x01 input format */ - 0x02, 0x00, /* 0x02 temporal decimation */ - 0x03, 0x12, /* 0x03 Cropping msb */ - 0x04, 0x16, /* 0x04 Vertical Delay, lsb */ - 0x05, 0xe0, /* 0x05 Vertical Active lsb */ - 0x06, 0x80, /* 0x06 Horizontal Delay lsb */ - 0x07, 0xd0, /* 0x07 Horizontal Active lsb */ - 0x08, 0x00, /* 0x08 Horizontal Scaling msb */ - 0x09, 0xf8, /* 0x09 Horizontal Scaling lsb */ - 0x0a, 0x00, /* 0x0a Brightness control */ - 0x0b, 0x30, /* 0x0b Miscellaneous control */ - 0x0c, 0xd8, /* 0x0c Luma Gain lsb */ - 0x0d, 0xfe, /* 0x0d Chroma Gain (U) lsb */ - 0x0e, 0xb4, /* 0x0e Chroma Gain (V) msb */ - 0x0f, 0x00, /* 0x0f Hue control */ - 0x12, 0x04, /* 0x12 Output Format */ - 0x13, 0x20, /* 0x13 Vertial Scaling msb 0x00 - chroma comb OFF, line drop scaling, interlace scaling - BUG? Why does turning the chroma comb on fuck up color? - Bug in the bt819 stepping on my board? - */ - 0x14, 0x00, /* 0x14 Vertial Scaling lsb */ - 0x16, 0x07, /* 0x16 Video Timing Polarity - ACTIVE=active low - FIELD: high=odd, - vreset=active high, - hreset=active high */ - 0x18, 0x68, /* 0x18 AGC Delay */ - 0x19, 0x5d, /* 0x19 Burst Gate Delay */ - 0x1a, 0x80, /* 0x1a ADC Interface */ - }; - - struct bt819 *decoder = to_bt819(sd); - struct timing *timing = &timing_data[(decoder->norm & V4L2_STD_525_60) ? 1 : 0]; - - init[0x03 * 2 - 1] = - (((timing->vdelay >> 8) & 0x03) << 6) | - (((timing->vactive >> 8) & 0x03) << 4) | - (((timing->hdelay >> 8) & 0x03) << 2) | - ((timing->hactive >> 8) & 0x03); - init[0x04 * 2 - 1] = timing->vdelay & 0xff; - init[0x05 * 2 - 1] = timing->vactive & 0xff; - init[0x06 * 2 - 1] = timing->hdelay & 0xff; - init[0x07 * 2 - 1] = timing->hactive & 0xff; - init[0x08 * 2 - 1] = timing->hscale >> 8; - init[0x09 * 2 - 1] = timing->hscale & 0xff; - /* 0x15 in array is address 0x19 */ - init[0x15 * 2 - 1] = (decoder->norm & V4L2_STD_625_50) ? 115 : 93; /* Chroma burst delay */ - /* reset */ - bt819_write(decoder, 0x1f, 0x00); - mdelay(1); - - /* init */ - return bt819_write_block(decoder, init, sizeof(init)); -} - -/* ----------------------------------------------------------------------- */ - -static int bt819_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pstd) -{ - struct bt819 *decoder = to_bt819(sd); - int status = bt819_read(decoder, 0x00); - int res = V4L2_IN_ST_NO_SIGNAL; - v4l2_std_id std; - - if ((status & 0x80)) - res = 0; - - if ((status & 0x10)) - std = V4L2_STD_PAL; - else - std = V4L2_STD_NTSC; - if (pstd) - *pstd = std; - if (pstatus) - *pstatus = res; - - v4l2_dbg(1, debug, sd, "get status %x\n", status); - return 0; -} - -static int bt819_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) -{ - return bt819_status(sd, NULL, std); -} - -static int bt819_g_input_status(struct v4l2_subdev *sd, u32 *status) -{ - return bt819_status(sd, status, NULL); -} - -static int bt819_s_std(struct v4l2_subdev *sd, v4l2_std_id std) -{ - struct bt819 *decoder = to_bt819(sd); - struct timing *timing = NULL; - - v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std); - - if (sd->v4l2_dev == NULL || sd->v4l2_dev->notify == NULL) - v4l2_err(sd, "no notify found!\n"); - - if (std & V4L2_STD_NTSC) { - v4l2_subdev_notify(sd, BT819_FIFO_RESET_LOW, NULL); - bt819_setbit(decoder, 0x01, 0, 1); - bt819_setbit(decoder, 0x01, 1, 0); - bt819_setbit(decoder, 0x01, 5, 0); - bt819_write(decoder, 0x18, 0x68); - bt819_write(decoder, 0x19, 0x5d); - /* bt819_setbit(decoder, 0x1a, 5, 1); */ - timing = &timing_data[1]; - } else if (std & V4L2_STD_PAL) { - v4l2_subdev_notify(sd, BT819_FIFO_RESET_LOW, NULL); - bt819_setbit(decoder, 0x01, 0, 1); - bt819_setbit(decoder, 0x01, 1, 1); - bt819_setbit(decoder, 0x01, 5, 1); - bt819_write(decoder, 0x18, 0x7f); - bt819_write(decoder, 0x19, 0x72); - /* bt819_setbit(decoder, 0x1a, 5, 0); */ - timing = &timing_data[0]; - } else { - v4l2_dbg(1, debug, sd, "unsupported norm %llx\n", - (unsigned long long)std); - return -EINVAL; - } - bt819_write(decoder, 0x03, - (((timing->vdelay >> 8) & 0x03) << 6) | - (((timing->vactive >> 8) & 0x03) << 4) | - (((timing->hdelay >> 8) & 0x03) << 2) | - ((timing->hactive >> 8) & 0x03)); - bt819_write(decoder, 0x04, timing->vdelay & 0xff); - bt819_write(decoder, 0x05, timing->vactive & 0xff); - bt819_write(decoder, 0x06, timing->hdelay & 0xff); - bt819_write(decoder, 0x07, timing->hactive & 0xff); - bt819_write(decoder, 0x08, (timing->hscale >> 8) & 0xff); - bt819_write(decoder, 0x09, timing->hscale & 0xff); - decoder->norm = std; - v4l2_subdev_notify(sd, BT819_FIFO_RESET_HIGH, NULL); - return 0; -} - -static int bt819_s_routing(struct v4l2_subdev *sd, - u32 input, u32 output, u32 config) -{ - struct bt819 *decoder = to_bt819(sd); - - v4l2_dbg(1, debug, sd, "set input %x\n", input); - - if (input > 7) - return -EINVAL; - - if (sd->v4l2_dev == NULL || sd->v4l2_dev->notify == NULL) - v4l2_err(sd, "no notify found!\n"); - - if (decoder->input != input) { - v4l2_subdev_notify(sd, BT819_FIFO_RESET_LOW, NULL); - decoder->input = input; - /* select mode */ - if (decoder->input == 0) { - bt819_setbit(decoder, 0x0b, 6, 0); - bt819_setbit(decoder, 0x1a, 1, 1); - } else { - bt819_setbit(decoder, 0x0b, 6, 1); - bt819_setbit(decoder, 0x1a, 1, 0); - } - v4l2_subdev_notify(sd, BT819_FIFO_RESET_HIGH, NULL); - } - return 0; -} - -static int bt819_s_stream(struct v4l2_subdev *sd, int enable) -{ - struct bt819 *decoder = to_bt819(sd); - - v4l2_dbg(1, debug, sd, "enable output %x\n", enable); - - if (decoder->enable != enable) { - decoder->enable = enable; - bt819_setbit(decoder, 0x16, 7, !enable); - } - return 0; -} - -static int bt819_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct v4l2_subdev *sd = to_sd(ctrl); - struct bt819 *decoder = to_bt819(sd); - int temp; - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - bt819_write(decoder, 0x0a, ctrl->val); - break; - - case V4L2_CID_CONTRAST: - bt819_write(decoder, 0x0c, ctrl->val & 0xff); - bt819_setbit(decoder, 0x0b, 2, ((ctrl->val >> 8) & 0x01)); - 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; - 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 int bt819_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) -{ - struct bt819 *decoder = to_bt819(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return v4l2_chip_ident_i2c_client(client, chip, decoder->ident, 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_chip_ident = bt819_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 = bt819_s_std, -}; - -static const struct v4l2_subdev_video_ops bt819_video_ops = { - .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 = kzalloc(sizeof(struct bt819), 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"; - decoder->ident = V4L2_IDENT_BT819A; - break; - case 0x60: - name = "bt817a"; - decoder->ident = V4L2_IDENT_BT817A; - break; - case 0x20: - name = "bt815a"; - decoder->ident = V4L2_IDENT_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); - kfree(decoder); - 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); - kfree(decoder); - 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); |