From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- drivers/media/video/saa7185.c | 524 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 524 insertions(+) create mode 100644 drivers/media/video/saa7185.c (limited to 'drivers/media/video/saa7185.c') diff --git a/drivers/media/video/saa7185.c b/drivers/media/video/saa7185.c new file mode 100644 index 00000000000..5f0b224c3cb --- /dev/null +++ b/drivers/media/video/saa7185.c @@ -0,0 +1,524 @@ +/* + * saa7185 - Philips SAA7185B video encoder driver version 0.0.3 + * + * Copyright (C) 1998 Dave Perks + * + * Slight changes for video timing and attachment output by + * Wolfgang Scherr + * + * Changes by Ronald Bultje + * - moved over to linux>=2.4.x i2c protocol (1/1/2003) + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +MODULE_DESCRIPTION("Philips SAA7185 video encoder driver"); +MODULE_AUTHOR("Dave Perks"); +MODULE_LICENSE("GPL"); + +#include +#include + +#define I2C_NAME(s) (s)->name + +#include + +static int debug = 0; +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 { + unsigned char reg[128]; + + int norm; + int enable; + int bright; + int contrast; + int hue; + int sat; +}; + +#define I2C_SAA7185 0x88 + +/* ----------------------------------------------------------------------- */ + +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) +{ + struct saa7185 *encoder = i2c_get_clientdata(client); + + dprintk(1, KERN_DEBUG "SAA7185: %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) +{ + int ret = -1; + u8 reg; + + /* the adv7175 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 */ + struct saa7185 *encoder = i2c_get_clientdata(client); + struct i2c_msg msg; + u8 block_data[32]; + + msg.addr = client->addr; + msg.flags = 0; + while (len >= 2) { + msg.buf = (char *) block_data; + msg.len = 0; + block_data[msg.len++] = reg = data[0]; + do { + block_data[msg.len++] = + encoder->reg[reg++] = data[1]; + len -= 2; + data += 2; + } while (len >= 2 && data[0] == reg && + msg.len < 32); + if ((ret = i2c_transfer(client->adapter, + &msg, 1)) < 0) + break; + } + } else { + /* do some slow I2C emulation kind of thing */ + while (len >= 2) { + reg = *data++; + if ((ret = saa7185_write(client, reg, + *data++)) < 0) + break; + len -= 2; + } + } + + return ret; +} + +/* ----------------------------------------------------------------------- */ + +static const unsigned char init_common[] = { + 0x3a, 0x0f, /* CBENB=0, V656=0, VY2C=1, + * YUV2C=1, MY2C=1, MUV2C=1 */ + + 0x42, 0x6b, /* OVLY0=107 */ + 0x43, 0x00, /* OVLU0=0 white */ + 0x44, 0x00, /* OVLV0=0 */ + 0x45, 0x22, /* OVLY1=34 */ + 0x46, 0xac, /* OVLU1=172 yellow */ + 0x47, 0x0e, /* OVLV1=14 */ + 0x48, 0x03, /* OVLY2=3 */ + 0x49, 0x1d, /* OVLU2=29 cyan */ + 0x4a, 0xac, /* OVLV2=172 */ + 0x4b, 0xf0, /* OVLY3=240 */ + 0x4c, 0xc8, /* OVLU3=200 green */ + 0x4d, 0xb9, /* OVLV3=185 */ + 0x4e, 0xd4, /* OVLY4=212 */ + 0x4f, 0x38, /* OVLU4=56 magenta */ + 0x50, 0x47, /* OVLV4=71 */ + 0x51, 0xc1, /* OVLY5=193 */ + 0x52, 0xe3, /* OVLU5=227 red */ + 0x53, 0x54, /* OVLV5=84 */ + 0x54, 0xa3, /* OVLY6=163 */ + 0x55, 0x54, /* OVLU6=84 blue */ + 0x56, 0xf2, /* OVLV6=242 */ + 0x57, 0x90, /* OVLY7=144 */ + 0x58, 0x00, /* OVLU7=0 black */ + 0x59, 0x00, /* OVLV7=0 */ + + 0x5a, 0x00, /* CHPS=0 */ + 0x5b, 0x76, /* GAINU=118 */ + 0x5c, 0xa5, /* GAINV=165 */ + 0x5d, 0x3c, /* BLCKL=60 */ + 0x5e, 0x3a, /* BLNNL=58 */ + 0x5f, 0x3a, /* CCRS=0, BLNVB=58 */ + 0x60, 0x00, /* NULL */ + + /* 0x61 - 0x66 set according to norm */ + + 0x67, 0x00, /* 0 : caption 1st byte odd field */ + 0x68, 0x00, /* 0 : caption 2nd byte odd field */ + 0x69, 0x00, /* 0 : caption 1st byte even field */ + 0x6a, 0x00, /* 0 : caption 2nd byte even field */ + + 0x6b, 0x91, /* MODIN=2, PCREF=0, SCCLN=17 */ + 0x6c, 0x20, /* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0, + * CBLF=0, ORCV2=0, PRCV2=0 */ + 0x6d, 0x00, /* SRCM1=0, CCEN=0 */ + + 0x6e, 0x0e, /* HTRIG=0x005, approx. centered, at + * least for PAL */ + 0x6f, 0x00, /* HTRIG upper bits */ + 0x70, 0x20, /* PHRES=0, SBLN=1, VTRIG=0 */ + + /* The following should not be needed */ + + 0x71, 0x15, /* BMRQ=0x115 */ + 0x72, 0x90, /* EMRQ=0x690 */ + 0x73, 0x61, /* EMRQ=0x690, BMRQ=0x115 */ + 0x74, 0x00, /* NULL */ + 0x75, 0x00, /* NULL */ + 0x76, 0x00, /* NULL */ + 0x77, 0x15, /* BRCV=0x115 */ + 0x78, 0x90, /* ERCV=0x690 */ + 0x79, 0x61, /* ERCV=0x690, BRCV=0x115 */ + + /* Field length controls */ + + 0x7a, 0x70, /* FLC=0 */ + + /* The following should not be needed if SBLN = 1 */ + + 0x7b, 0x16, /* FAL=22 */ + 0x7c, 0x35, /* LAL=244 */ + 0x7d, 0x20, /* LAL=244, FAL=22 */ +}; + +static const unsigned char init_pal[] = { + 0x61, 0x1e, /* FISE=0, PAL=1, SCBW=1, RTCE=1, + * YGS=1, INPI=0, DOWN=0 */ + 0x62, 0xc8, /* DECTYP=1, BSTA=72 */ + 0x63, 0xcb, /* FSC0 */ + 0x64, 0x8a, /* FSC1 */ + 0x65, 0x09, /* FSC2 */ + 0x66, 0x2a, /* FSC3 */ +}; + +static const unsigned char init_ntsc[] = { + 0x61, 0x1d, /* FISE=1, PAL=0, SCBW=1, RTCE=1, + * YGS=1, INPI=0, DOWN=0 */ + 0x62, 0xe6, /* DECTYP=1, BSTA=102 */ + 0x63, 0x1f, /* FSC0 */ + 0x64, 0x7c, /* FSC1 */ + 0x65, 0xf0, /* FSC2 */ + 0x66, 0x21, /* FSC3 */ +}; + +static int +saa7185_command (struct i2c_client *client, + unsigned int cmd, + void *arg) +{ + struct saa7185 *encoder = i2c_get_clientdata(client); + + switch (cmd) { + + case 0: + saa7185_write_block(client, init_common, + sizeof(init_common)); + switch (encoder->norm) { + + case VIDEO_MODE_NTSC: + saa7185_write_block(client, init_ntsc, + sizeof(init_ntsc)); + break; + + case VIDEO_MODE_PAL: + saa7185_write_block(client, init_pal, + sizeof(init_pal)); + break; + } + + break; + + case ENCODER_GET_CAPABILITIES: + { + struct video_encoder_capability *cap = arg; + + cap->flags = + VIDEO_ENCODER_PAL | VIDEO_ENCODER_NTSC | + VIDEO_ENCODER_SECAM | VIDEO_ENCODER_CCIR; + cap->inputs = 1; + cap->outputs = 1; + } + break; + + case ENCODER_SET_NORM: + { + int *iarg = arg; + + //saa7185_write_block(client, init_common, sizeof(init_common)); + + switch (*iarg) { + + case VIDEO_MODE_NTSC: + saa7185_write_block(client, init_ntsc, + sizeof(init_ntsc)); + break; + + case VIDEO_MODE_PAL: + saa7185_write_block(client, init_pal, + sizeof(init_pal)); + break; + + case VIDEO_MODE_SECAM: + default: + return -EINVAL; + + } + encoder->norm = *iarg; + } + break; + + case ENCODER_SET_INPUT: + { + int *iarg = arg; + + /* RJ: *iarg = 0: input is from SA7111 + *iarg = 1: input is from ZR36060 */ + + switch (*iarg) { + + case 0: + /* Switch RTCE to 1 */ + saa7185_write(client, 0x61, + (encoder->reg[0x61] & 0xf7) | 0x08); + saa7185_write(client, 0x6e, 0x01); + break; + + case 1: + /* Switch RTCE to 0 */ + saa7185_write(client, 0x61, + (encoder->reg[0x61] & 0xf7) | 0x00); + /* SW: a slight sync problem... */ + saa7185_write(client, 0x6e, 0x00); + break; + + default: + return -EINVAL; + + } + } + break; + + case ENCODER_SET_OUTPUT: + { + int *iarg = arg; + + /* not much choice of outputs */ + if (*iarg != 0) { + return -EINVAL; + } + } + break; + + case ENCODER_ENABLE_OUTPUT: + { + int *iarg = arg; + + encoder->enable = !!*iarg; + saa7185_write(client, 0x61, + (encoder->reg[0x61] & 0xbf) | + (encoder->enable ? 0x00 : 0x40)); + } + break; + + default: + return -EINVAL; + } + + return 0; +} + +/* ----------------------------------------------------------------------- */ + +/* + * 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_range[] = { I2C_CLIENT_END }; + +static unsigned short probe[2] = { I2C_CLIENT_END, I2C_CLIENT_END }; +static unsigned short probe_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END }; +static unsigned short ignore[2] = { I2C_CLIENT_END, I2C_CLIENT_END }; +static unsigned short ignore_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END }; +static unsigned short force[2] = { I2C_CLIENT_END , I2C_CLIENT_END }; + +static struct i2c_client_address_data addr_data = { + .normal_i2c = normal_i2c, + .normal_i2c_range = normal_i2c_range, + .probe = probe, + .probe_range = probe_range, + .ignore = ignore, + .ignore_range = ignore_range, + .force = force +}; + +static struct i2c_driver i2c_driver_saa7185; + +static int +saa7185_detect_client (struct i2c_adapter *adapter, + int address, + int kind) +{ + 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; + + client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL); + if (client == 0) + return -ENOMEM; + memset(client, 0, sizeof(struct i2c_client)); + client->addr = address; + client->adapter = adapter; + client->driver = &i2c_driver_saa7185; + client->flags = I2C_CLIENT_ALLOW_USE; + strlcpy(I2C_NAME(client), "saa7185", sizeof(I2C_NAME(client))); + + encoder = kmalloc(sizeof(struct saa7185), GFP_KERNEL); + if (encoder == NULL) { + kfree(client); + return -ENOMEM; + } + memset(encoder, 0, sizeof(struct saa7185)); + 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); + } + + 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) +{ + 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 = { + .owner = THIS_MODULE, + .name = "saa7185", /* name */ + + .id = I2C_DRIVERID_SAA7185B, + .flags = I2C_DF_NOTIFY, + + .attach_adapter = saa7185_attach_adapter, + .detach_client = saa7185_detach_client, + .command = saa7185_command, +}; + +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); -- cgit v1.2.3