diff options
Diffstat (limited to 'drivers/media/video/cs53l32a.c')
| -rw-r--r-- | drivers/media/video/cs53l32a.c | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/drivers/media/video/cs53l32a.c b/drivers/media/video/cs53l32a.c deleted file mode 100644 index 7292a6316e6..00000000000 --- a/drivers/media/video/cs53l32a.c +++ /dev/null @@ -1,226 +0,0 @@ -/* - * cs53l32a (Adaptec AVC-2010 and AVC-2410) i2c ivtv driver. - * Copyright (C) 2005 Martin Vaughan - * - * Audio source switching for Adaptec AVC-2410 added by Trev Jackson - * - * 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 <asm/uaccess.h> -#include <linux/i2c.h> -#include <linux/i2c-id.h> -#include <linux/videodev2.h> -#include <media/v4l2-device.h> -#include <media/v4l2-chip-ident.h> -#include <media/v4l2-i2c-drv-legacy.h> - -MODULE_DESCRIPTION("i2c device driver for cs53l32a Audio ADC"); -MODULE_AUTHOR("Martin Vaughan"); -MODULE_LICENSE("GPL"); - -static int debug; - -module_param(debug, bool, 0644); - -MODULE_PARM_DESC(debug, "Debugging messages, 0=Off (default), 1=On"); - -static unsigned short normal_i2c[] = { 0x22 >> 1, I2C_CLIENT_END }; - -I2C_CLIENT_INSMOD; - -/* ----------------------------------------------------------------------- */ - -static int cs53l32a_write(struct v4l2_subdev *sd, u8 reg, u8 value) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return i2c_smbus_write_byte_data(client, reg, value); -} - -static int cs53l32a_read(struct v4l2_subdev *sd, u8 reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return i2c_smbus_read_byte_data(client, reg); -} - -static int cs53l32a_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route) -{ - /* There are 2 physical inputs, but the second input can be - placed in two modes, the first mode bypasses the PGA (gain), - the second goes through the PGA. Hence there are three - possible inputs to choose from. */ - if (route->input > 2) { - v4l2_err(sd, "Invalid input %d.\n", route->input); - return -EINVAL; - } - cs53l32a_write(sd, 0x01, 0x01 + (route->input << 4)); - return 0; -} - -static int cs53l32a_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) -{ - if (ctrl->id == V4L2_CID_AUDIO_MUTE) { - ctrl->value = (cs53l32a_read(sd, 0x03) & 0xc0) != 0; - return 0; - } - if (ctrl->id != V4L2_CID_AUDIO_VOLUME) - return -EINVAL; - ctrl->value = (s8)cs53l32a_read(sd, 0x04); - return 0; -} - -static int cs53l32a_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) -{ - if (ctrl->id == V4L2_CID_AUDIO_MUTE) { - cs53l32a_write(sd, 0x03, ctrl->value ? 0xf0 : 0x30); - return 0; - } - if (ctrl->id != V4L2_CID_AUDIO_VOLUME) - return -EINVAL; - if (ctrl->value > 12 || ctrl->value < -96) - return -EINVAL; - cs53l32a_write(sd, 0x04, (u8) ctrl->value); - cs53l32a_write(sd, 0x05, (u8) ctrl->value); - return 0; -} - -static int cs53l32a_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_CS53l32A, 0); -} - -static int cs53l32a_log_status(struct v4l2_subdev *sd) -{ - u8 v = cs53l32a_read(sd, 0x01); - u8 m = cs53l32a_read(sd, 0x03); - s8 vol = cs53l32a_read(sd, 0x04); - - v4l2_info(sd, "Input: %d%s\n", (v >> 4) & 3, - (m & 0xC0) ? " (muted)" : ""); - v4l2_info(sd, "Volume: %d dB\n", vol); - return 0; -} - -static int cs53l32a_command(struct i2c_client *client, unsigned cmd, void *arg) -{ - return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg); -} - -/* ----------------------------------------------------------------------- */ - -static const struct v4l2_subdev_core_ops cs53l32a_core_ops = { - .log_status = cs53l32a_log_status, - .g_chip_ident = cs53l32a_g_chip_ident, - .g_ctrl = cs53l32a_g_ctrl, - .s_ctrl = cs53l32a_s_ctrl, -}; - -static const struct v4l2_subdev_audio_ops cs53l32a_audio_ops = { - .s_routing = cs53l32a_s_routing, -}; - -static const struct v4l2_subdev_ops cs53l32a_ops = { - .core = &cs53l32a_core_ops, - .audio = &cs53l32a_audio_ops, -}; - -/* ----------------------------------------------------------------------- */ - -/* i2c implementation */ - -/* - * Generic i2c probe - * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1' - */ - -static int cs53l32a_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct v4l2_subdev *sd; - int i; - - /* Check if the adapter supports the needed features */ - if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - return -EIO; - - if (!id) - strlcpy(client->name, "cs53l32a", sizeof(client->name)); - - v4l_info(client, "chip found @ 0x%x (%s)\n", - client->addr << 1, client->adapter->name); - - sd = kmalloc(sizeof(struct v4l2_subdev), GFP_KERNEL); - if (sd == NULL) - return -ENOMEM; - v4l2_i2c_subdev_init(sd, client, &cs53l32a_ops); - - for (i = 1; i <= 7; i++) { - u8 v = cs53l32a_read(sd, i); - - v4l2_dbg(1, debug, sd, "Read Reg %d %02x\n", i, v); - } - - /* Set cs53l32a internal register for Adaptec 2010/2410 setup */ - - cs53l32a_write(sd, 0x01, (u8) 0x21); - cs53l32a_write(sd, 0x02, (u8) 0x29); - cs53l32a_write(sd, 0x03, (u8) 0x30); - cs53l32a_write(sd, 0x04, (u8) 0x00); - cs53l32a_write(sd, 0x05, (u8) 0x00); - cs53l32a_write(sd, 0x06, (u8) 0x00); - cs53l32a_write(sd, 0x07, (u8) 0x00); - - /* Display results, should be 0x21,0x29,0x30,0x00,0x00,0x00,0x00 */ - - for (i = 1; i <= 7; i++) { - u8 v = cs53l32a_read(sd, i); - - v4l2_dbg(1, debug, sd, "Read Reg %d %02x\n", i, v); - } - return 0; -} - -static int cs53l32a_remove(struct i2c_client *client) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - - v4l2_device_unregister_subdev(sd); - kfree(sd); - return 0; -} - -static const struct i2c_device_id cs53l32a_id[] = { - { "cs53l32a", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, cs53l32a_id); - -static struct v4l2_i2c_driver_data v4l2_i2c_data = { - .name = "cs53l32a", - .driverid = I2C_DRIVERID_CS53L32A, - .command = cs53l32a_command, - .remove = cs53l32a_remove, - .probe = cs53l32a_probe, - .id_table = cs53l32a_id, -}; |