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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/media/video/saa7110.c
Linux-2.6.12-rc2v2.6.12-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!
Diffstat (limited to 'drivers/media/video/saa7110.c')
-rw-r--r--drivers/media/video/saa7110.c623
1 files changed, 623 insertions, 0 deletions
diff --git a/drivers/media/video/saa7110.c b/drivers/media/video/saa7110.c
new file mode 100644
index 000000000000..64273b438530
--- /dev/null
+++ b/drivers/media/video/saa7110.c
@@ -0,0 +1,623 @@
+/*
+ * saa7110 - Philips SAA7110(A) video decoder driver
+ *
+ * Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl>
+ *
+ * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
+ * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
+ * - some corrections for Pinnacle Systems Inc. DC10plus card.
+ *
+ * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
+ * - 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 <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+MODULE_DESCRIPTION("Philips SAA7110 video decoder driver");
+MODULE_AUTHOR("Pauline Middelink");
+MODULE_LICENSE("GPL");
+
+#include <linux/i2c.h>
+#include <linux/i2c-dev.h>
+
+#define I2C_NAME(s) (s)->name
+
+#include <linux/videodev.h>
+#include <linux/video_decoder.h>
+
+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)
+
+#define SAA7110_MAX_INPUT 9 /* 6 CVBS, 3 SVHS */
+#define SAA7110_MAX_OUTPUT 0 /* its a decoder only */
+
+#define I2C_SAA7110 0x9C /* or 0x9E */
+
+#define SAA7110_NR_REG 0x35
+
+struct saa7110 {
+ u8 reg[SAA7110_NR_REG];
+
+ int norm;
+ int input;
+ int enable;
+ int bright;
+ int contrast;
+ int hue;
+ int sat;
+
+ wait_queue_head_t wq;
+};
+
+/* ----------------------------------------------------------------------- */
+/* I2C support functions */
+/* ----------------------------------------------------------------------- */
+
+static int
+saa7110_write (struct i2c_client *client,
+ u8 reg,
+ u8 value)
+{
+ struct saa7110 *decoder = i2c_get_clientdata(client);
+
+ decoder->reg[reg] = value;
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static int
+saa7110_write_block (struct i2c_client *client,
+ const u8 *data,
+ unsigned int len)
+{
+ int ret = -1;
+ u8 reg = *data; /* first register to write to */
+
+ /* Sanity check */
+ if (reg + (len - 1) > SAA7110_NR_REG)
+ return ret;
+
+ /* the saa7110 has an autoincrement function, use it if
+ * the adapter understands raw I2C */
+ if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ struct saa7110 *decoder = i2c_get_clientdata(client);
+ struct i2c_msg msg;
+
+ msg.len = len;
+ msg.buf = (char *) data;
+ msg.addr = client->addr;
+ msg.flags = 0;
+ ret = i2c_transfer(client->adapter, &msg, 1);
+
+ /* Cache the written data */
+ memcpy(decoder->reg + reg, data + 1, len - 1);
+ } else {
+ for (++data, --len; len; len--) {
+ if ((ret = saa7110_write(client, reg++,
+ *data++)) < 0)
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static inline int
+saa7110_read (struct i2c_client *client)
+{
+ return i2c_smbus_read_byte(client);
+}
+
+/* ----------------------------------------------------------------------- */
+/* SAA7110 functions */
+/* ----------------------------------------------------------------------- */
+
+#define FRESP_06H_COMPST 0x03 //0x13
+#define FRESP_06H_SVIDEO 0x83 //0xC0
+
+
+static int
+saa7110_selmux (struct i2c_client *client,
+ int chan)
+{
+ static const unsigned char modes[9][8] = {
+ /* mode 0 */
+ {FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
+ 0x44, 0x75, 0x16},
+ /* mode 1 */
+ {FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
+ 0x44, 0x75, 0x16},
+ /* mode 2 */
+ {FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
+ 0x60, 0xB5, 0x05},
+ /* mode 3 */
+ {FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
+ 0x60, 0xB5, 0x05},
+ /* mode 4 */
+ {FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
+ 0x60, 0xB5, 0x03},
+ /* mode 5 */
+ {FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
+ 0x60, 0xB5, 0x03},
+ /* mode 6 */
+ {FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
+ 0x44, 0x75, 0x12},
+ /* mode 7 */
+ {FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
+ 0x60, 0xB5, 0x14},
+ /* mode 8 */
+ {FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
+ 0x44, 0x75, 0x21}
+ };
+ struct saa7110 *decoder = i2c_get_clientdata(client);
+ const unsigned char *ptr = modes[chan];
+
+ saa7110_write(client, 0x06, ptr[0]); /* Luminance control */
+ saa7110_write(client, 0x20, ptr[1]); /* Analog Control #1 */
+ saa7110_write(client, 0x21, ptr[2]); /* Analog Control #2 */
+ saa7110_write(client, 0x22, ptr[3]); /* Mixer Control #1 */
+ saa7110_write(client, 0x2C, ptr[4]); /* Mixer Control #2 */
+ saa7110_write(client, 0x30, ptr[5]); /* ADCs gain control */
+ saa7110_write(client, 0x31, ptr[6]); /* Mixer Control #3 */
+ saa7110_write(client, 0x21, ptr[7]); /* Analog Control #2 */
+ decoder->input = chan;
+
+ return 0;
+}
+
+static const unsigned char initseq[1 + SAA7110_NR_REG] = {
+ 0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00,
+ /* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90,
+ /* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
+ /* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
+ /* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C,
+ /* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
+};
+
+static int
+determine_norm (struct i2c_client *client)
+{
+ DEFINE_WAIT(wait);
+ struct saa7110 *decoder = i2c_get_clientdata(client);
+ int status;
+
+ /* mode changed, start automatic detection */
+ saa7110_write_block(client, initseq, sizeof(initseq));
+ saa7110_selmux(client, decoder->input);
+ prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
+ schedule_timeout(HZ/4);
+ finish_wait(&decoder->wq, &wait);
+ status = saa7110_read(client);
+ if (status & 0x40) {
+ dprintk(1, KERN_INFO "%s: status=0x%02x (no signal)\n",
+ I2C_NAME(client), status);
+ return decoder->norm; // no change
+ }
+ if ((status & 3) == 0) {
+ saa7110_write(client, 0x06, 0x83);
+ if (status & 0x20) {
+ dprintk(1,
+ KERN_INFO
+ "%s: status=0x%02x (NTSC/no color)\n",
+ I2C_NAME(client), status);
+ //saa7110_write(client,0x2E,0x81);
+ return VIDEO_MODE_NTSC;
+ }
+ dprintk(1, KERN_INFO "%s: status=0x%02x (PAL/no color)\n",
+ I2C_NAME(client), status);
+ //saa7110_write(client,0x2E,0x9A);
+ return VIDEO_MODE_PAL;
+ }
+ //saa7110_write(client,0x06,0x03);
+ if (status & 0x20) { /* 60Hz */
+ dprintk(1, KERN_INFO "%s: status=0x%02x (NTSC)\n",
+ I2C_NAME(client), status);
+ saa7110_write(client, 0x0D, 0x86);
+ saa7110_write(client, 0x0F, 0x50);
+ saa7110_write(client, 0x11, 0x2C);
+ //saa7110_write(client,0x2E,0x81);
+ return VIDEO_MODE_NTSC;
+ }
+
+ /* 50Hz -> PAL/SECAM */
+ saa7110_write(client, 0x0D, 0x86);
+ saa7110_write(client, 0x0F, 0x10);
+ saa7110_write(client, 0x11, 0x59);
+ //saa7110_write(client,0x2E,0x9A);
+
+ prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
+ schedule_timeout(HZ/4);
+ finish_wait(&decoder->wq, &wait);
+
+ status = saa7110_read(client);
+ if ((status & 0x03) == 0x01) {
+ dprintk(1, KERN_INFO "%s: status=0x%02x (SECAM)\n",
+ I2C_NAME(client), status);
+ saa7110_write(client, 0x0D, 0x87);
+ return VIDEO_MODE_SECAM;
+ }
+ dprintk(1, KERN_INFO "%s: status=0x%02x (PAL)\n", I2C_NAME(client),
+ status);
+ return VIDEO_MODE_PAL;
+}
+
+static int
+saa7110_command (struct i2c_client *client,
+ unsigned int cmd,
+ void *arg)
+{
+ struct saa7110 *decoder = i2c_get_clientdata(client);
+ int v;
+
+ switch (cmd) {
+ case 0:
+ //saa7110_write_block(client, initseq, sizeof(initseq));
+ break;
+
+ case DECODER_GET_CAPABILITIES:
+ {
+ struct video_decoder_capability *dc = arg;
+
+ dc->flags =
+ VIDEO_DECODER_PAL | VIDEO_DECODER_NTSC |
+ VIDEO_DECODER_SECAM | VIDEO_DECODER_AUTO;
+ dc->inputs = SAA7110_MAX_INPUT;
+ dc->outputs = SAA7110_MAX_OUTPUT;
+ }
+ break;
+
+ case DECODER_GET_STATUS:
+ {
+ int status;
+ int res = 0;
+
+ status = saa7110_read(client);
+ dprintk(1, KERN_INFO "%s: status=0x%02x norm=%d\n",
+ I2C_NAME(client), status, decoder->norm);
+ if (!(status & 0x40))
+ res |= DECODER_STATUS_GOOD;
+ if (status & 0x03)
+ res |= DECODER_STATUS_COLOR;
+
+ switch (decoder->norm) {
+ case VIDEO_MODE_NTSC:
+ res |= DECODER_STATUS_NTSC;
+ break;
+ case VIDEO_MODE_PAL:
+ res |= DECODER_STATUS_PAL;
+ break;
+ case VIDEO_MODE_SECAM:
+ res |= DECODER_STATUS_SECAM;
+ break;
+ }
+ *(int *) arg = res;
+ }
+ break;
+
+ case DECODER_SET_NORM:
+ v = *(int *) arg;
+ if (decoder->norm != v) {
+ decoder->norm = v;
+ //saa7110_write(client, 0x06, 0x03);
+ switch (v) {
+ case VIDEO_MODE_NTSC:
+ saa7110_write(client, 0x0D, 0x86);
+ saa7110_write(client, 0x0F, 0x50);
+ saa7110_write(client, 0x11, 0x2C);
+ //saa7110_write(client, 0x2E, 0x81);
+ dprintk(1,
+ KERN_INFO "%s: switched to NTSC\n",
+ I2C_NAME(client));
+ break;
+ case VIDEO_MODE_PAL:
+ saa7110_write(client, 0x0D, 0x86);
+ saa7110_write(client, 0x0F, 0x10);
+ saa7110_write(client, 0x11, 0x59);
+ //saa7110_write(client, 0x2E, 0x9A);
+ dprintk(1,
+ KERN_INFO "%s: switched to PAL\n",
+ I2C_NAME(client));
+ break;
+ case VIDEO_MODE_SECAM:
+ saa7110_write(client, 0x0D, 0x87);
+ saa7110_write(client, 0x0F, 0x10);
+ saa7110_write(client, 0x11, 0x59);
+ //saa7110_write(client, 0x2E, 0x9A);
+ dprintk(1,
+ KERN_INFO
+ "%s: switched to SECAM\n",
+ I2C_NAME(client));
+ break;
+ case VIDEO_MODE_AUTO:
+ dprintk(1,
+ KERN_INFO
+ "%s: TV standard detection...\n",
+ I2C_NAME(client));
+ decoder->norm = determine_norm(client);
+ *(int *) arg = decoder->norm;
+ break;
+ default:
+ return -EPERM;
+ }
+ }
+ break;
+
+ case DECODER_SET_INPUT:
+ v = *(int *) arg;
+ if (v < 0 || v > SAA7110_MAX_INPUT) {
+ dprintk(1,
+ KERN_INFO "%s: input=%d not available\n",
+ I2C_NAME(client), v);
+ return -EINVAL;
+ }
+ if (decoder->input != v) {
+ saa7110_selmux(client, v);
+ dprintk(1, KERN_INFO "%s: switched to input=%d\n",
+ I2C_NAME(client), v);
+ }
+ break;
+
+ case DECODER_SET_OUTPUT:
+ v = *(int *) arg;
+ /* not much choice of outputs */
+ if (v != 0)
+ return -EINVAL;
+ break;
+
+ case DECODER_ENABLE_OUTPUT:
+ v = *(int *) arg;
+ if (decoder->enable != v) {
+ decoder->enable = v;
+ saa7110_write(client, 0x0E, v ? 0x18 : 0x80);
+ dprintk(1, KERN_INFO "%s: YUV %s\n", I2C_NAME(client),
+ v ? "on" : "off");
+ }
+ break;
+
+ case DECODER_SET_PICTURE:
+ {
+ struct video_picture *pic = arg;
+
+ if (decoder->bright != pic->brightness) {
+ /* We want 0 to 255 we get 0-65535 */
+ decoder->bright = pic->brightness;
+ saa7110_write(client, 0x19, decoder->bright >> 8);
+ }
+ if (decoder->contrast != pic->contrast) {
+ /* We want 0 to 127 we get 0-65535 */
+ decoder->contrast = pic->contrast;
+ saa7110_write(client, 0x13,
+ decoder->contrast >> 9);
+ }
+ if (decoder->sat != pic->colour) {
+ /* We want 0 to 127 we get 0-65535 */
+ decoder->sat = pic->colour;
+ saa7110_write(client, 0x12, decoder->sat >> 9);
+ }
+ if (decoder->hue != pic->hue) {
+ /* We want -128 to 127 we get 0-65535 */
+ decoder->hue = pic->hue;
+ saa7110_write(client, 0x07,
+ (decoder->hue >> 8) - 128);
+ }
+ }
+ break;
+
+ case DECODER_DUMP:
+ for (v = 0; v < 0x34; v += 16) {
+ int j;
+ dprintk(1, KERN_INFO "%s: %03x\n", I2C_NAME(client),
+ v);
+ for (j = 0; j < 16; j++) {
+ dprintk(1, KERN_INFO " %02x",
+ decoder->reg[v + j]);
+ }
+ dprintk(1, KERN_INFO "\n");
+ }
+ break;
+
+ default:
+ dprintk(1, KERN_INFO "unknown saa7110_command??(%d)\n",
+ cmd);
+ 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_SAA7110 >> 1,
+ (I2C_SAA7110 >> 1) + 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_saa7110;
+
+static int
+saa7110_detect_client (struct i2c_adapter *adapter,
+ int address,
+ int kind)
+{
+ struct i2c_client *client;
+ struct saa7110 *decoder;
+ int rv;
+
+ dprintk(1,
+ KERN_INFO
+ "saa7110.c: detecting saa7110 client on address 0x%x\n",
+ address << 1);
+
+ /* Check if the adapter supports the needed features */
+ if (!i2c_check_functionality
+ (adapter,
+ I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_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_saa7110;
+ client->flags = I2C_CLIENT_ALLOW_USE;
+ strlcpy(I2C_NAME(client), "saa7110", sizeof(I2C_NAME(client)));
+
+ decoder = kmalloc(sizeof(struct saa7110), GFP_KERNEL);
+ if (decoder == 0) {
+ kfree(client);
+ return -ENOMEM;
+ }
+ memset(decoder, 0, sizeof(struct saa7110));
+ decoder->norm = VIDEO_MODE_PAL;
+ decoder->input = 0;
+ decoder->enable = 1;
+ decoder->bright = 32768;
+ decoder->contrast = 32768;
+ decoder->hue = 32768;
+ decoder->sat = 32768;
+ init_waitqueue_head(&decoder->wq);
+ i2c_set_clientdata(client, decoder);
+
+ rv = i2c_attach_client(client);
+ if (rv) {
+ kfree(client);
+ kfree(decoder);
+ return rv;
+ }
+
+ rv = saa7110_write_block(client, initseq, sizeof(initseq));
+ if (rv < 0)
+ dprintk(1, KERN_ERR "%s_attach: init status %d\n",
+ I2C_NAME(client), rv);
+ else {
+ int ver, status;
+ saa7110_write(client, 0x21, 0x10);
+ saa7110_write(client, 0x0e, 0x18);
+ saa7110_write(client, 0x0D, 0x04);
+ ver = saa7110_read(client);
+ saa7110_write(client, 0x0D, 0x06);
+ //mdelay(150);
+ status = saa7110_read(client);
+ dprintk(1,
+ KERN_INFO
+ "%s_attach: SAA7110A version %x at 0x%02x, status=0x%02x\n",
+ I2C_NAME(client), ver, client->addr << 1, status);
+ saa7110_write(client, 0x0D, 0x86);
+ saa7110_write(client, 0x0F, 0x10);
+ saa7110_write(client, 0x11, 0x59);
+ //saa7110_write(client, 0x2E, 0x9A);
+ }
+
+ //saa7110_selmux(client,0);
+ //determine_norm(client);
+ /* setup and implicit mode 0 select has been performed */
+
+ return 0;
+}
+
+static int
+saa7110_attach_adapter (struct i2c_adapter *adapter)
+{
+ dprintk(1,
+ KERN_INFO
+ "saa7110.c: starting probe for adapter %s (0x%x)\n",
+ I2C_NAME(adapter), adapter->id);
+ return i2c_probe(adapter, &addr_data, &saa7110_detect_client);
+}
+
+static int
+saa7110_detach_client (struct i2c_client *client)
+{
+ struct saa7110 *decoder = i2c_get_clientdata(client);
+ int err;
+
+ err = i2c_detach_client(client);
+ if (err) {
+ return err;
+ }
+
+ kfree(decoder);
+ kfree(client);
+
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static struct i2c_driver i2c_driver_saa7110 = {
+ .owner = THIS_MODULE,
+ .name = "saa7110",
+
+ .id = I2C_DRIVERID_SAA7110,
+ .flags = I2C_DF_NOTIFY,
+
+ .attach_adapter = saa7110_attach_adapter,
+ .detach_client = saa7110_detach_client,
+ .command = saa7110_command,
+};
+
+static int __init
+saa7110_init (void)
+{
+ return i2c_add_driver(&i2c_driver_saa7110);
+}
+
+static void __exit
+saa7110_exit (void)
+{
+ i2c_del_driver(&i2c_driver_saa7110);
+}
+
+module_init(saa7110_init);
+module_exit(saa7110_exit);