diff options
Diffstat (limited to 'drivers/media/video/cs53l32a.c')
| -rw-r--r-- | drivers/media/video/cs53l32a.c | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/drivers/media/video/cs53l32a.c b/drivers/media/video/cs53l32a.c deleted file mode 100644 index 8739c64785e..00000000000 --- a/drivers/media/video/cs53l32a.c +++ /dev/null @@ -1,229 +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/videodev.h> -#include <media/v4l2-common.h> - -MODULE_DESCRIPTION("i2c device driver for cs53l32a Audio ADC"); -MODULE_AUTHOR("Martin Vaughan"); -MODULE_LICENSE("GPL"); - -static int debug = 0; - -module_param(debug, bool, 0644); - -MODULE_PARM_DESC(debug, "Debugging messages\n\t\t\t0=Off (default), 1=On"); - -static unsigned short normal_i2c[] = { 0x22 >> 1, I2C_CLIENT_END }; - - -I2C_CLIENT_INSMOD; - -/* ----------------------------------------------------------------------- */ - -static int cs53l32a_write(struct i2c_client *client, u8 reg, u8 value) -{ - return i2c_smbus_write_byte_data(client, reg, value); -} - -static int cs53l32a_read(struct i2c_client *client, u8 reg) -{ - return i2c_smbus_read_byte_data(client, reg); -} - -static int cs53l32a_command(struct i2c_client *client, unsigned int cmd, - void *arg) -{ - struct v4l2_audio *input = arg; - struct v4l2_control *ctrl = arg; - - switch (cmd) { - case VIDIOC_S_AUDIO: - /* 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 (input->index > 2) { - v4l_err(client, "Invalid input %d.\n", input->index); - return -EINVAL; - } - cs53l32a_write(client, 0x01, 0x01 + (input->index << 4)); - break; - - case VIDIOC_G_AUDIO: - memset(input, 0, sizeof(*input)); - input->index = (cs53l32a_read(client, 0x01) >> 4) & 3; - break; - - case VIDIOC_G_CTRL: - if (ctrl->id == V4L2_CID_AUDIO_MUTE) { - ctrl->value = (cs53l32a_read(client, 0x03) & 0xc0) != 0; - break; - } - if (ctrl->id != V4L2_CID_AUDIO_VOLUME) - return -EINVAL; - ctrl->value = (s8)cs53l32a_read(client, 0x04); - break; - - case VIDIOC_S_CTRL: - if (ctrl->id == V4L2_CID_AUDIO_MUTE) { - cs53l32a_write(client, 0x03, ctrl->value ? 0xf0 : 0x30); - break; - } - if (ctrl->id != V4L2_CID_AUDIO_VOLUME) - return -EINVAL; - if (ctrl->value > 12 || ctrl->value < -96) - return -EINVAL; - cs53l32a_write(client, 0x04, (u8) ctrl->value); - cs53l32a_write(client, 0x05, (u8) ctrl->value); - break; - - case VIDIOC_LOG_STATUS: - { - u8 v = cs53l32a_read(client, 0x01); - u8 m = cs53l32a_read(client, 0x03); - s8 vol = cs53l32a_read(client, 0x04); - - v4l_info(client, "Input: %d%s\n", (v >> 4) & 3, - (m & 0xC0) ? " (muted)" : ""); - v4l_info(client, "Volume: %d dB\n", vol); - break; - } - - default: - return -EINVAL; - } - return 0; -} - -/* ----------------------------------------------------------------------- */ - -/* i2c implementation */ - -/* - * Generic i2c probe - * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1' - */ - -static struct i2c_driver i2c_driver; - -static int cs53l32a_attach(struct i2c_adapter *adapter, int address, int kind) -{ - struct i2c_client *client; - int i; - - /* Check if the adapter supports the needed features */ - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - return 0; - - client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); - if (client == 0) - return -ENOMEM; - - client->addr = address; - client->adapter = adapter; - client->driver = &i2c_driver; - snprintf(client->name, sizeof(client->name) - 1, "cs53l32a"); - - v4l_info(client, "chip found @ 0x%x (%s)\n", address << 1, adapter->name); - - for (i = 1; i <= 7; i++) { - u8 v = cs53l32a_read(client, i); - - v4l_dbg(1, debug, client, "Read Reg %d %02x\n", i, v); - } - - /* Set cs53l32a internal register for Adaptec 2010/2410 setup */ - - cs53l32a_write(client, 0x01, (u8) 0x21); - cs53l32a_write(client, 0x02, (u8) 0x29); - cs53l32a_write(client, 0x03, (u8) 0x30); - cs53l32a_write(client, 0x04, (u8) 0x00); - cs53l32a_write(client, 0x05, (u8) 0x00); - cs53l32a_write(client, 0x06, (u8) 0x00); - cs53l32a_write(client, 0x07, (u8) 0x00); - - /* Display results, should be 0x21,0x29,0x30,0x00,0x00,0x00,0x00 */ - - for (i = 1; i <= 7; i++) { - u8 v = cs53l32a_read(client, i); - - v4l_dbg(1, debug, client, "Read Reg %d %02x\n", i, v); - } - - i2c_attach_client(client); - - return 0; -} - -static int cs53l32a_probe(struct i2c_adapter *adapter) -{ - if (adapter->class & I2C_CLASS_TV_ANALOG) - return i2c_probe(adapter, &addr_data, cs53l32a_attach); - return 0; -} - -static int cs53l32a_detach(struct i2c_client *client) -{ - int err; - - err = i2c_detach_client(client); - if (err) { - return err; - } - kfree(client); - - return 0; -} - -/* ----------------------------------------------------------------------- */ - -/* i2c implementation */ -static struct i2c_driver i2c_driver = { - .driver = { - .name = "cs53l32a", - }, - .id = I2C_DRIVERID_CS53L32A, - .attach_adapter = cs53l32a_probe, - .detach_client = cs53l32a_detach, - .command = cs53l32a_command, -}; - - -static int __init cs53l32a_init_module(void) -{ - return i2c_add_driver(&i2c_driver); -} - -static void __exit cs53l32a_cleanup_module(void) -{ - i2c_del_driver(&i2c_driver); -} - -module_init(cs53l32a_init_module); -module_exit(cs53l32a_cleanup_module); |