diff options
Diffstat (limited to 'drivers/media/video/saa7185.c')
| -rw-r--r-- | drivers/media/video/saa7185.c | 210 |
1 files changed, 50 insertions, 160 deletions
diff --git a/drivers/media/video/saa7185.c b/drivers/media/video/saa7185.c index 02fda4eecea3..6debb65152ee 100644 --- a/drivers/media/video/saa7185.c +++ b/drivers/media/video/saa7185.c @@ -25,43 +25,25 @@ */ #include <linux/module.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/errno.h> -#include <linux/fs.h> -#include <linux/kernel.h> -#include <linux/major.h> -#include <linux/slab.h> -#include <linux/mm.h> -#include <linux/signal.h> #include <linux/types.h> -#include <linux/i2c.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/page.h> +#include <linux/ioctl.h> #include <asm/uaccess.h> - +#include <linux/i2c.h> +#include <linux/i2c-id.h> #include <linux/videodev.h> #include <linux/video_encoder.h> +#include <media/v4l2-common.h> +#include <media/v4l2-i2c-drv-legacy.h> MODULE_DESCRIPTION("Philips SAA7185 video encoder driver"); MODULE_AUTHOR("Dave Perks"); MODULE_LICENSE("GPL"); -#define I2C_NAME(s) (s)->name - - static int debug; module_param(debug, int, 0); MODULE_PARM_DESC(debug, "Debug level (0-1)"); -#define dprintk(num, format, args...) \ - do { \ - if (debug >= num) \ - printk(format, ##args); \ - } while (0) - /* ----------------------------------------------------------------------- */ struct saa7185 { @@ -75,32 +57,24 @@ struct saa7185 { int sat; }; -#define I2C_SAA7185 0x88 - /* ----------------------------------------------------------------------- */ -static inline int -saa7185_read (struct i2c_client *client) +static inline int saa7185_read(struct i2c_client *client) { return i2c_smbus_read_byte(client); } -static int -saa7185_write (struct i2c_client *client, - u8 reg, - u8 value) +static int saa7185_write(struct i2c_client *client, u8 reg, u8 value) { struct saa7185 *encoder = i2c_get_clientdata(client); - dprintk(1, KERN_DEBUG "SAA7185: %02x set to %02x\n", reg, value); + v4l_dbg(1, debug, client, "%02x set to %02x\n", reg, value); encoder->reg[reg] = value; return i2c_smbus_write_byte_data(client, reg, value); } -static int -saa7185_write_block (struct i2c_client *client, - const u8 *data, - unsigned int len) +static int saa7185_write_block(struct i2c_client *client, + const u8 *data, unsigned int len) { int ret = -1; u8 reg; @@ -121,18 +95,17 @@ saa7185_write_block (struct i2c_client *client, encoder->reg[reg++] = data[1]; len -= 2; data += 2; - } while (len >= 2 && data[0] == reg && - block_len < 32); - if ((ret = i2c_master_send(client, block_data, - block_len)) < 0) + } 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++; - if ((ret = saa7185_write(client, reg, - *data++)) < 0) + ret = saa7185_write(client, reg, *data++); + if (ret < 0) break; len -= 2; } @@ -240,15 +213,11 @@ static const unsigned char init_ntsc[] = { 0x66, 0x21, /* FSC3 */ }; -static int -saa7185_command (struct i2c_client *client, - unsigned int cmd, - void *arg) +static int saa7185_command(struct i2c_client *client, unsigned cmd, void *arg) { struct saa7185 *encoder = i2c_get_clientdata(client); switch (cmd) { - case 0: saa7185_write_block(client, init_common, sizeof(init_common)); @@ -264,7 +233,6 @@ saa7185_command (struct i2c_client *client, sizeof(init_pal)); break; } - break; case ENCODER_GET_CAPABILITIES: @@ -276,8 +244,8 @@ saa7185_command (struct i2c_client *client, VIDEO_ENCODER_SECAM | VIDEO_ENCODER_CCIR; cap->inputs = 1; cap->outputs = 1; - } break; + } case ENCODER_SET_NORM: { @@ -286,7 +254,6 @@ saa7185_command (struct i2c_client *client, //saa7185_write_block(client, init_common, sizeof(init_common)); switch (*iarg) { - case VIDEO_MODE_NTSC: saa7185_write_block(client, init_ntsc, sizeof(init_ntsc)); @@ -300,11 +267,10 @@ saa7185_command (struct i2c_client *client, case VIDEO_MODE_SECAM: default: return -EINVAL; - } encoder->norm = *iarg; - } break; + } case ENCODER_SET_INPUT: { @@ -314,7 +280,6 @@ saa7185_command (struct i2c_client *client, *iarg = 1: input is from ZR36060 */ switch (*iarg) { - case 0: /* Switch RTCE to 1 */ saa7185_write(client, 0x61, @@ -332,21 +297,19 @@ saa7185_command (struct i2c_client *client, default: return -EINVAL; - } - } break; + } case ENCODER_SET_OUTPUT: { int *iarg = arg; /* not much choice of outputs */ - if (*iarg != 0) { + if (*iarg != 0) return -EINVAL; - } - } break; + } case ENCODER_ENABLE_OUTPUT: { @@ -356,8 +319,8 @@ saa7185_command (struct i2c_client *client, saa7185_write(client, 0x61, (encoder->reg[0x61] & 0xbf) | (encoder->enable ? 0x00 : 0x40)); - } break; + } default: return -EINVAL; @@ -368,138 +331,65 @@ saa7185_command (struct i2c_client *client, /* ----------------------------------------------------------------------- */ -/* - * Generic i2c probe - * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1' - */ -static unsigned short normal_i2c[] = { I2C_SAA7185 >> 1, I2C_CLIENT_END }; +static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END }; -static unsigned short ignore = I2C_CLIENT_END; +I2C_CLIENT_INSMOD; -static struct i2c_client_address_data addr_data = { - .normal_i2c = normal_i2c, - .probe = &ignore, - .ignore = &ignore, -}; - -static struct i2c_driver i2c_driver_saa7185; - -static int -saa7185_detect_client (struct i2c_adapter *adapter, - int address, - int kind) +static int saa7185_probe(struct i2c_client *client, + const struct i2c_device_id *id) { int i; - struct i2c_client *client; struct saa7185 *encoder; - dprintk(1, - KERN_INFO - "saa7185.c: detecting saa7185 client on address 0x%x\n", - address << 1); - /* Check if the adapter supports the needed features */ - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - return 0; + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -ENODEV; - client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); - if (!client) - return -ENOMEM; - client->addr = address; - client->adapter = adapter; - client->driver = &i2c_driver_saa7185; - strlcpy(I2C_NAME(client), "saa7185", sizeof(I2C_NAME(client))); + v4l_info(client, "chip found @ 0x%x (%s)\n", + client->addr << 1, client->adapter->name); encoder = kzalloc(sizeof(struct saa7185), GFP_KERNEL); - if (encoder == NULL) { - kfree(client); + if (encoder == NULL) return -ENOMEM; - } encoder->norm = VIDEO_MODE_NTSC; encoder->enable = 1; i2c_set_clientdata(client, encoder); - i = i2c_attach_client(client); - if (i) { - kfree(client); - kfree(encoder); - return i; - } - i = saa7185_write_block(client, init_common, sizeof(init_common)); - if (i >= 0) { - i = saa7185_write_block(client, init_ntsc, - sizeof(init_ntsc)); - } - if (i < 0) { - dprintk(1, KERN_ERR "%s_attach: init error %d\n", - I2C_NAME(client), i); - } else { - dprintk(1, - KERN_INFO - "%s_attach: chip version %d at address 0x%x\n", - I2C_NAME(client), saa7185_read(client) >> 5, - client->addr << 1); - } - + if (i >= 0) + i = saa7185_write_block(client, init_ntsc, sizeof(init_ntsc)); + if (i < 0) + v4l_dbg(1, debug, client, "init error %d\n", i); + else + v4l_dbg(1, debug, client, "revision 0x%x\n", + saa7185_read(client) >> 5); return 0; } -static int -saa7185_attach_adapter (struct i2c_adapter *adapter) -{ - dprintk(1, - KERN_INFO - "saa7185.c: starting probe for adapter %s (0x%x)\n", - I2C_NAME(adapter), adapter->id); - return i2c_probe(adapter, &addr_data, &saa7185_detect_client); -} - -static int -saa7185_detach_client (struct i2c_client *client) +static int saa7185_remove(struct i2c_client *client) { struct saa7185 *encoder = i2c_get_clientdata(client); - int err; - - err = i2c_detach_client(client); - if (err) { - return err; - } saa7185_write(client, 0x61, (encoder->reg[0x61]) | 0x40); /* SW: output off is active */ //saa7185_write(client, 0x3a, (encoder->reg[0x3a]) | 0x80); /* SW: color bar */ kfree(encoder); - kfree(client); - return 0; } /* ----------------------------------------------------------------------- */ -static struct i2c_driver i2c_driver_saa7185 = { - .driver = { - .name = "saa7185", /* name */ - }, - - .id = I2C_DRIVERID_SAA7185B, +static const struct i2c_device_id saa7185_id[] = { + { "saa7185", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, saa7185_id); - .attach_adapter = saa7185_attach_adapter, - .detach_client = saa7185_detach_client, +static struct v4l2_i2c_driver_data v4l2_i2c_data = { + .name = "saa7185", + .driverid = I2C_DRIVERID_SAA7185B, .command = saa7185_command, + .probe = saa7185_probe, + .remove = saa7185_remove, + .id_table = saa7185_id, }; - -static int __init -saa7185_init (void) -{ - return i2c_add_driver(&i2c_driver_saa7185); -} - -static void __exit -saa7185_exit (void) -{ - i2c_del_driver(&i2c_driver_saa7185); -} - -module_init(saa7185_init); -module_exit(saa7185_exit); |