diff options
Diffstat (limited to 'drivers/media/video/adv7170.c')
| -rw-r--r-- | drivers/media/video/adv7170.c | 251 |
1 files changed, 57 insertions, 194 deletions
diff --git a/drivers/media/video/adv7170.c b/drivers/media/video/adv7170.c index f794f2dbfb3..e0eb4f32144 100644 --- a/drivers/media/video/adv7170.c +++ b/drivers/media/video/adv7170.c @@ -29,43 +29,24 @@ */ #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("Analog Devices ADV7170 video encoder driver"); MODULE_AUTHOR("Maxim Yevtyushkin"); MODULE_LICENSE("GPL"); - -#define I2C_NAME(x) (x)->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 adv7170 { @@ -80,21 +61,12 @@ struct adv7170 { int sat; }; -#define I2C_ADV7170 0xd4 -#define I2C_ADV7171 0x54 - -static char adv7170_name[] = "adv7170"; -static char adv7171_name[] = "adv7171"; - static char *inputs[] = { "pass_through", "play_back" }; static char *norms[] = { "PAL", "NTSC" }; /* ----------------------------------------------------------------------- */ -static inline int -adv7170_write (struct i2c_client *client, - u8 reg, - u8 value) +static inline int adv7170_write(struct i2c_client *client, u8 reg, u8 value) { struct adv7170 *encoder = i2c_get_clientdata(client); @@ -102,17 +74,13 @@ adv7170_write (struct i2c_client *client, return i2c_smbus_write_byte_data(client, reg, value); } -static inline int -adv7170_read (struct i2c_client *client, - u8 reg) +static inline int adv7170_read(struct i2c_client *client, u8 reg) { return i2c_smbus_read_byte_data(client, reg); } -static int -adv7170_write_block (struct i2c_client *client, - const u8 *data, - unsigned int len) +static int adv7170_write_block(struct i2c_client *client, + const u8 *data, unsigned int len) { int ret = -1; u8 reg; @@ -133,33 +101,25 @@ adv7170_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 = adv7170_write(client, reg, - *data++)) < 0) + ret = adv7170_write(client, reg, *data++); + if (ret < 0) break; len -= 2; } } - return ret; } /* ----------------------------------------------------------------------- */ -// Output filter: S-Video Composite - -#define MR050 0x11 //0x09 -#define MR060 0x14 //0x0c - -//--------------------------------------------------------------------------- #define TR0MODE 0x4c #define TR0RST 0x80 @@ -167,7 +127,6 @@ adv7170_write_block (struct i2c_client *client, #define TR1CAPT 0x00 #define TR1PLAY 0x00 - static const unsigned char init_NTSC[] = { 0x00, 0x10, // MR0 0x01, 0x20, // MR1 @@ -227,15 +186,11 @@ static const unsigned char init_PAL[] = { }; -static int -adv7170_command (struct i2c_client *client, - unsigned int cmd, - void * arg) +static int adv7170_command(struct i2c_client *client, unsigned cmd, void *arg) { struct adv7170 *encoder = i2c_get_clientdata(client); switch (cmd) { - case 0: #if 0 /* This is just for testing!!! */ @@ -254,18 +209,16 @@ adv7170_command (struct i2c_client *client, VIDEO_ENCODER_NTSC; cap->inputs = 2; cap->outputs = 1; - } break; + } case ENCODER_SET_NORM: { int iarg = *(int *) arg; - dprintk(1, KERN_DEBUG "%s_command: set norm %d", - I2C_NAME(client), iarg); + v4l_dbg(1, debug, client, "set norm %d\n", iarg); switch (iarg) { - case VIDEO_MODE_NTSC: adv7170_write_block(client, init_NTSC, sizeof(init_NTSC)); @@ -285,16 +238,13 @@ adv7170_command (struct i2c_client *client, break; default: - dprintk(1, KERN_ERR "%s: illegal norm: %d\n", - I2C_NAME(client), iarg); + v4l_dbg(1, debug, client, "illegal norm: %d\n", iarg); return -EINVAL; - } - dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client), - norms[iarg]); + v4l_dbg(1, debug, client, "switched to %s\n", norms[iarg]); encoder->norm = iarg; - } break; + } case ENCODER_SET_INPUT: { @@ -304,19 +254,17 @@ adv7170_command (struct i2c_client *client, *iarg = 1: input is from ZR36060 *iarg = 2: color bar */ - dprintk(1, KERN_DEBUG "%s_command: set input from %s\n", - I2C_NAME(client), + v4l_dbg(1, debug, client, "set input from %s\n", iarg == 0 ? "decoder" : "ZR36060"); switch (iarg) { - case 0: adv7170_write(client, 0x01, 0x20); adv7170_write(client, 0x08, TR1CAPT); /* TR1 */ adv7170_write(client, 0x02, 0x0e); // Enable genlock adv7170_write(client, 0x07, TR0MODE | TR0RST); adv7170_write(client, 0x07, TR0MODE); - //udelay(10); + /* udelay(10); */ break; case 1: @@ -325,20 +273,17 @@ adv7170_command (struct i2c_client *client, adv7170_write(client, 0x02, 0x08); adv7170_write(client, 0x07, TR0MODE | TR0RST); adv7170_write(client, 0x07, TR0MODE); - //udelay(10); + /* udelay(10); */ break; default: - dprintk(1, KERN_ERR "%s: illegal input: %d\n", - I2C_NAME(client), iarg); + v4l_dbg(1, debug, client, "illegal input: %d\n", iarg); return -EINVAL; - } - dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client), - inputs[iarg]); + v4l_dbg(1, debug, client, "switched to %s\n", inputs[iarg]); encoder->input = iarg; - } break; + } case ENCODER_SET_OUTPUT: { @@ -348,16 +293,16 @@ adv7170_command (struct i2c_client *client, if (*iarg != 0) { return -EINVAL; } - } break; + } case ENCODER_ENABLE_OUTPUT: { int *iarg = arg; encoder->enable = !!*iarg; - } break; + } default: return -EINVAL; @@ -368,149 +313,67 @@ adv7170_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_ADV7170 >> 1, (I2C_ADV7170 >> 1) + 1, - I2C_ADV7171 >> 1, (I2C_ADV7171 >> 1) + 1, +static unsigned short normal_i2c[] = { + 0xd4 >> 1, 0xd6 >> 1, /* adv7170 IDs */ + 0x54 >> 1, 0x56 >> 1, /* adv7171 IDs */ 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_adv7170; - -static int -adv7170_detect_client (struct i2c_adapter *adapter, - int address, - int kind) +static int adv7170_probe(struct i2c_client *client, + const struct i2c_device_id *id) { - int i; - struct i2c_client *client; struct adv7170 *encoder; - char *dname; - - dprintk(1, - KERN_INFO - "adv7170.c: detecting adv7170 client on address 0x%x\n", - address << 1); + int i; /* 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_adv7170; - if ((client->addr == I2C_ADV7170 >> 1) || - (client->addr == (I2C_ADV7170 >> 1) + 1)) { - dname = adv7170_name; - } else if ((client->addr == I2C_ADV7171 >> 1) || - (client->addr == (I2C_ADV7171 >> 1) + 1)) { - dname = adv7171_name; - } else { - /* We should never get here!!! */ - kfree(client); - return 0; - } - strlcpy(I2C_NAME(client), dname, sizeof(I2C_NAME(client))); + v4l_info(client, "chip found @ 0x%x (%s)\n", + client->addr << 1, client->adapter->name); encoder = kzalloc(sizeof(struct adv7170), GFP_KERNEL); - if (encoder == NULL) { - kfree(client); + if (encoder == NULL) return -ENOMEM; - } encoder->norm = VIDEO_MODE_NTSC; encoder->input = 0; encoder->enable = 1; i2c_set_clientdata(client, encoder); - i = i2c_attach_client(client); - if (i) { - kfree(client); - kfree(encoder); - return i; - } - i = adv7170_write_block(client, init_NTSC, sizeof(init_NTSC)); if (i >= 0) { i = adv7170_write(client, 0x07, TR0MODE | TR0RST); i = adv7170_write(client, 0x07, TR0MODE); i = adv7170_read(client, 0x12); - dprintk(1, KERN_INFO "%s_attach: rev. %d at 0x%02x\n", - I2C_NAME(client), i & 1, client->addr << 1); - } - if (i < 0) { - dprintk(1, KERN_ERR "%s_attach: init error 0x%x\n", - I2C_NAME(client), i); + v4l_dbg(1, debug, client, "revision %d\n", i & 1); } - + if (i < 0) + v4l_dbg(1, debug, client, "init error 0x%x\n", i); return 0; } -static int -adv7170_attach_adapter (struct i2c_adapter *adapter) -{ - dprintk(1, - KERN_INFO - "adv7170.c: starting probe for adapter %s (0x%x)\n", - I2C_NAME(adapter), adapter->id); - return i2c_probe(adapter, &addr_data, &adv7170_detect_client); -} - -static int -adv7170_detach_client (struct i2c_client *client) +static int adv7170_remove(struct i2c_client *client) { - struct adv7170 *encoder = i2c_get_clientdata(client); - int err; - - err = i2c_detach_client(client); - if (err) { - return err; - } - - kfree(encoder); - kfree(client); - + kfree(i2c_get_clientdata(client)); return 0; } /* ----------------------------------------------------------------------- */ -static struct i2c_driver i2c_driver_adv7170 = { - .driver = { - .name = "adv7170", /* name */ - }, - - .id = I2C_DRIVERID_ADV7170, +static const struct i2c_device_id adv7170_id[] = { + { "adv7170", 0 }, + { "adv7171", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adv7170_id); - .attach_adapter = adv7170_attach_adapter, - .detach_client = adv7170_detach_client, +static struct v4l2_i2c_driver_data v4l2_i2c_data = { + .name = "adv7170", + .driverid = I2C_DRIVERID_ADV7170, .command = adv7170_command, + .probe = adv7170_probe, + .remove = adv7170_remove, + .id_table = adv7170_id, }; - -static int __init -adv7170_init (void) -{ - return i2c_add_driver(&i2c_driver_adv7170); -} - -static void __exit -adv7170_exit (void) -{ - i2c_del_driver(&i2c_driver_adv7170); -} - -module_init(adv7170_init); -module_exit(adv7170_exit); |