--- /dev/null
+/*
+ * saa711x - Philips SAA711x video decoder driver version 0.0.1
+ *
+ * To do: Now, it handles only saa7113/7114. Should be improved to
+ * handle all Philips saa711x devices.
+ *
+ * Based on saa7113 driver from Dave Perks <dperks@ibm.net>
+ *
+ * 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/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/pci.h>
+#include <linux/signal.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <asm/uaccess.h>
+#include <linux/videodev.h>
+
+MODULE_DESCRIPTION("Philips SAA711x video decoder driver");
+MODULE_AUTHOR("Dave Perks, Jose Ignacio Gijon, Joerg Heckenbach, Mark McClelland, Dwaine Garden");
+MODULE_LICENSE("GPL");
+
+#include <linux/i2c.h>
+
+#define I2C_NAME(s) (s)->name
+
+#include <linux/video_decoder.h>
+
+static int debug = 0;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, " Set the default Debug level. Default: 0 (Off) - (0-1)");
+
+
+#define dprintk(num, format, args...) \
+ do { \
+ if (debug >= num) \
+ printk(format, ##args); \
+ } while (0)
+
+/* ----------------------------------------------------------------------- */
+
+struct saa711x {
+ unsigned char reg[32];
+
+ int norm;
+ int input;
+ int enable;
+ int bright;
+ int contrast;
+ int hue;
+ int sat;
+};
+
+#define I2C_SAA7113 0x4A
+#define I2C_SAA7114 0x42
+
+/* ----------------------------------------------------------------------- */
+
+static inline int
+saa711x_write (struct i2c_client *client,
+ u8 reg,
+ u8 value)
+{
+ struct saa711x *decoder = i2c_get_clientdata(client);
+
+ decoder->reg[reg] = value;
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static int
+saa711x_write_block (struct i2c_client *client,
+ const u8 *data,
+ unsigned int len)
+{
+ int ret = -1;
+ u8 reg;
+
+ /* the saa711x 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 saa711x *decoder = 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++] =
+ decoder->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 = saa711x_write(client, reg,
+ *data++)) < 0)
+ break;
+ len -= 2;
+ }
+ }
+
+ return ret;
+}
+
+static int
+saa711x_init_decoder (struct i2c_client *client,
+ struct video_decoder_init *init)
+{
+ return saa711x_write_block(client, init->data, init->len);
+}
+
+static inline int
+saa711x_read (struct i2c_client *client,
+ u8 reg)
+{
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const unsigned char saa711x_i2c_init[] = {
+ 0x00, 0x00, /* PH711x_CHIP_VERSION 00 - ID byte */
+ 0x01, 0x08, /* PH711x_INCREMENT_DELAY - (1) (1) (1) (1) IDEL3 IDEL2 IDELL1 IDEL0 */
+ 0x02, 0xc0, /* PH711x_ANALOG_INPUT_CONTR_1 - FUSE1 FUSE0 GUDL1 GUDL0 MODE3 MODE2 MODE1 MODE0 */
+ 0x03, 0x23, /* PH711x_ANALOG_INPUT_CONTR_2 - (1) HLNRS VBSL WPOFF HOLDG GAFIX GAI28 GAI18 */
+ 0x04, 0x00, /* PH711x_ANALOG_INPUT_CONTR_3 - GAI17 GAI16 GAI15 GAI14 GAI13 GAI12 GAI11 GAI10 */
+ 0x05, 0x00, /* PH711x_ANALOG_INPUT_CONTR_4 - GAI27 GAI26 GAI25 GAI24 GAI23 GAI22 GAI21 GAI20 */
+ 0x06, 0xeb, /* PH711x_HORIZONTAL_SYNC_START - HSB7 HSB6 HSB5 HSB4 HSB3 HSB2 HSB1 HSB0 */
+ 0x07, 0xe0, /* PH711x_HORIZONTAL_SYNC_STOP - HSS7 HSS6 HSS5 HSS4 HSS3 HSS2 HSS1 HSS0 */
+ 0x08, 0x88, /* PH711x_SYNC_CONTROL - AUFD FSEL FOET HTC1 HTC0 HPLL VNOI1 VNOI0 */
+ 0x09, 0x00, /* PH711x_LUMINANCE_CONTROL - BYPS PREF BPSS1 BPSS0 VBLB UPTCV APER1 APER0 */
+ 0x0a, 0x80, /* PH711x_LUMINANCE_BRIGHTNESS - BRIG7 BRIG6 BRIG5 BRIG4 BRIG3 BRIG2 BRIG1 BRIG0 */
+ 0x0b, 0x47, /* PH711x_LUMINANCE_CONTRAST - CONT7 CONT6 CONT5 CONT4 CONT3 CONT2 CONT1 CONT0 */
+ 0x0c, 0x40, /* PH711x_CHROMA_SATURATION - SATN7 SATN6 SATN5 SATN4 SATN3 SATN2 SATN1 SATN0 */
+ 0x0d, 0x00, /* PH711x_CHROMA_HUE_CONTROL - HUEC7 HUEC6 HUEC5 HUEC4 HUEC3 HUEC2 HUEC1 HUEC0 */
+ 0x0e, 0x01, /* PH711x_CHROMA_CONTROL - CDTO CSTD2 CSTD1 CSTD0 DCCF FCTC CHBW1 CHBW0 */
+ 0x0f, 0xaa, /* PH711x_CHROMA_GAIN_CONTROL - ACGC CGAIN6 CGAIN5 CGAIN4 CGAIN3 CGAIN2 CGAIN1 CGAIN0 */
+ 0x10, 0x00, /* PH711x_FORMAT_DELAY_CONTROL - OFTS1 OFTS0 HDEL1 HDEL0 VRLN YDEL2 YDEL1 YDEL0 */
+ 0x11, 0x1C, /* PH711x_OUTPUT_CONTROL_1 - GPSW1 CM99 GPSW0 HLSEL OEYC OERT VIPB COLO */
+ 0x12, 0x01, /* PH711x_OUTPUT_CONTROL_2 - RTSE13 RTSE12 RTSE11 RTSE10 RTSE03 RTSE02 RTSE01 RTSE00 */
+ 0x13, 0x00, /* PH711x_OUTPUT_CONTROL_3 - ADLSB (1) (1) OLDSB FIDP (1) AOSL1 AOSL0 */
+ 0x14, 0x00, /* RESERVED 14 - (1) (1) (1) (1) (1) (1) (1) (1) */
+ 0x15, 0x00, /* PH711x_V_GATE1_START - VSTA7 VSTA6 VSTA5 VSTA4 VSTA3 VSTA2 VSTA1 VSTA0 */
+ 0x16, 0x00, /* PH711x_V_GATE1_STOP - VSTO7 VSTO6 VSTO5 VSTO4 VSTO3 VSTO2 VSTO1 VSTO0 */
+ 0x17, 0x00, /* PH711x_V_GATE1_MSB - (1) (1) (1) (1) (1) (1) VSTO8 VSTA8 */
+};
+
+static int
+saa711x_command (struct i2c_client *client,
+ unsigned int cmd,
+ void *arg)
+{
+ struct saa711x *decoder = i2c_get_clientdata(client);
+
+ switch (cmd) {
+
+ case 0:
+ case DECODER_INIT:
+ {
+ struct video_decoder_init *init = arg;
+ if (NULL != init)
+ return saa711x_init_decoder(client, init);
+ else {
+ struct video_decoder_init vdi;
+ vdi.data = saa711x_i2c_init;
+ vdi.len = sizeof(saa711x_i2c_init);
+ return saa711x_init_decoder(client, &vdi);
+ }
+ }
+
+ case DECODER_DUMP:
+ {
+ int i;
+
+ for (i = 0; i < 32; i += 16) {
+ int j;
+
+ printk(KERN_DEBUG "%s: %03x", I2C_NAME(client), i);
+ for (j = 0; j < 16; ++j) {
+ printk(" %02x",
+ saa711x_read(client, i + j));
+ }
+ printk("\n");
+ }
+ }
+ break;
+
+ case DECODER_GET_CAPABILITIES:
+ {
+ struct video_decoder_capability *cap = arg;
+
+ cap->flags = VIDEO_DECODER_PAL |
+ VIDEO_DECODER_NTSC |
+ VIDEO_DECODER_SECAM |
+ VIDEO_DECODER_AUTO |
+ VIDEO_DECODER_CCIR;
+ cap->inputs = 8;
+ cap->outputs = 1;
+ }
+ break;
+
+ case DECODER_GET_STATUS:
+ {
+ int *iarg = arg;
+ int status;
+ int res;
+
+ status = saa711x_read(client, 0x1f);
+ dprintk(1, KERN_DEBUG "%s status: 0x%02x\n", I2C_NAME(client),
+ status);
+ res = 0;
+ if ((status & (1 << 6)) == 0) {
+ res |= DECODER_STATUS_GOOD;
+ }
+ 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;
+ default:
+ case VIDEO_MODE_AUTO:
+ if ((status & (1 << 5)) != 0) {
+ res |= DECODER_STATUS_NTSC;
+ } else {
+ res |= DECODER_STATUS_PAL;
+ }
+ break;
+ }
+ if ((status & (1 << 0)) != 0) {
+ res |= DECODER_STATUS_COLOR;
+ }
+ *iarg = res;
+ }
+ break;
+
+ case DECODER_SET_GPIO:
+ {
+ int *iarg = arg;
+ if (0 != *iarg) {
+ saa711x_write(client, 0x11,
+ (decoder->reg[0x11] | 0x80));
+ } else {
+ saa711x_write(client, 0x11,
+ (decoder->reg[0x11] & 0x7f));
+ }
+ break;
+ }
+
+ case DECODER_SET_VBI_BYPASS:
+ {
+ int *iarg = arg;
+ if (0 != *iarg) {
+ saa711x_write(client, 0x13,
+ (decoder->reg[0x13] & 0xf0) | 0x0a);
+ } else {
+ saa711x_write(client, 0x13,
+ (decoder->reg[0x13] & 0xf0));
+ }
+ break;
+ }
+
+ case DECODER_SET_NORM:
+ {
+ int *iarg = arg;
+
+ switch (*iarg) {
+
+ case VIDEO_MODE_NTSC:
+ saa711x_write(client, 0x08,
+ (decoder->reg[0x08] & 0x3f) | 0x40);
+ saa711x_write(client, 0x0e,
+ (decoder->reg[0x0e] & 0x8f));
+ break;
+
+ case VIDEO_MODE_PAL:
+ saa711x_write(client, 0x08,
+ (decoder->reg[0x08] & 0x3f) | 0x00);
+ saa711x_write(client, 0x0e,
+ (decoder->reg[0x0e] & 0x8f));
+ break;
+
+ case VIDEO_MODE_SECAM:
+ saa711x_write(client, 0x08,
+ (decoder->reg[0x08] & 0x3f) | 0x00);
+ saa711x_write(client, 0x0e,
+ (decoder->reg[0x0e] & 0x8f) | 0x50);
+ break;
+
+ case VIDEO_MODE_AUTO:
+ saa711x_write(client, 0x08,
+ (decoder->reg[0x08] & 0x3f) | 0x80);
+ saa711x_write(client, 0x0e,
+ (decoder->reg[0x0e] & 0x8f));
+ break;
+
+ default:
+ return -EINVAL;
+
+ }
+ decoder->norm = *iarg;
+ }
+ break;
+
+ case DECODER_SET_INPUT:
+ {
+ int *iarg = arg;
+ if (*iarg < 0 || *iarg > 9) {
+ return -EINVAL;
+ }
+ if (decoder->input != *iarg) {
+ decoder->input = *iarg;
+ /* select mode */
+ saa711x_write(client, 0x02,
+ (decoder->reg[0x02] & 0xf0) | decoder->input);
+ /* bypass chrominance trap for modes 4..7 */
+ saa711x_write(client, 0x09,
+ (decoder->reg[0x09] & 0x7f) | ((decoder->input > 3) ? 0x80 : 0));
+ }
+ }
+ break;
+
+ case DECODER_SET_OUTPUT:
+ {
+ int *iarg = arg;
+
+ /* not much choice of outputs */
+ if (*iarg != 0) {
+ return -EINVAL;
+ }
+ }
+ break;
+
+ case DECODER_ENABLE_OUTPUT:
+ {
+ int *iarg = arg;
+ int enable = (*iarg != 0);
+
+ if (decoder->enable != enable) {
+ decoder->enable = enable;
+
+ /* RJ: If output should be disabled (for
+ * playing videos), we also need a open PLL.
+ * The input is set to 0 (where no input
+ * source is connected), although this
+ * is not necessary.
+ *
+ * If output should be enabled, we have to
+ * reverse the above.
+ */
+
+ if (decoder->enable) {
+ saa711x_write(client, 0x02,
+ (decoder->
+ reg[0x02] & 0xf8) |
+ decoder->input);
+ saa711x_write(client, 0x08,
+ (decoder->reg[0x08] & 0xfb));
+ saa711x_write(client, 0x11,
+ (decoder->
+ reg[0x11] & 0xf3) | 0x0c);
+ } else {
+ saa711x_write(client, 0x02,
+ (decoder->reg[0x02] & 0xf8));
+ saa711x_write(client, 0x08,
+ (decoder->
+ reg[0x08] & 0xfb) | 0x04);
+ saa711x_write(client, 0x11,
+ (decoder->reg[0x11] & 0xf3));
+ }
+ }
+ }
+ 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;
+ saa711x_write(client, 0x0a, decoder->bright >> 8);
+ }
+ if (decoder->contrast != pic->contrast) {
+ /* We want 0 to 127 we get 0-65535 */
+ decoder->contrast = pic->contrast;
+ saa711x_write(client, 0x0b,
+ decoder->contrast >> 9);
+ }
+ if (decoder->sat != pic->colour) {
+ /* We want 0 to 127 we get 0-65535 */
+ decoder->sat = pic->colour;
+ saa711x_write(client, 0x0c, decoder->sat >> 9);
+ }
+ if (decoder->hue != pic->hue) {
+ /* We want -128 to 127 we get 0-65535 */
+ decoder->hue = pic->hue;
+ saa711x_write(client, 0x0d,
+ (decoder->hue - 32768) >> 8);
+ }
+ }
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+/*
+ * Generic i2c probe
+ * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
+ */
+
+/* standard i2c insmod options */
+static unsigned short normal_i2c[] = {
+ I2C_SAA7113>>1, /* saa7113 */
+ I2C_SAA7114>>1, /* saa7114 */
+ I2C_CLIENT_END
+};
+
+I2C_CLIENT_INSMOD;
+
+
+static struct i2c_driver i2c_driver_saa711x;
+
+static int
+saa711x_detect_client (struct i2c_adapter *adapter,
+ int address,
+ int kind)
+{
+ int i;
+ struct i2c_client *client;
+ struct saa711x *decoder;
+ struct video_decoder_init vdi;
+
+ dprintk(1,
+ KERN_INFO
+ "saa711x.c: detecting saa711x 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 = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
+ if (client == 0)
+ return -ENOMEM;
+ client->addr = address;
+ client->adapter = adapter;
+ client->driver = &i2c_driver_saa711x;
+ strlcpy(I2C_NAME(client), "saa711x", sizeof(I2C_NAME(client)));
+ decoder = kzalloc(sizeof(struct saa711x), GFP_KERNEL);
+ if (decoder == NULL) {
+ kfree(client);
+ return -ENOMEM;
+ }
+ decoder->norm = VIDEO_MODE_NTSC;
+ decoder->input = 0;
+ decoder->enable = 1;
+ decoder->bright = 32768;
+ decoder->contrast = 32768;
+ decoder->hue = 32768;
+ decoder->sat = 32768;
+ i2c_set_clientdata(client, decoder);
+
+ i = i2c_attach_client(client);
+ if (i) {
+ kfree(client);
+ kfree(decoder);
+ return i;
+ }
+
+ vdi.data = saa711x_i2c_init;
+ vdi.len = sizeof(saa711x_i2c_init);
+ i = saa711x_init_decoder(client, &vdi);
+ if (i < 0) {
+ dprintk(1, KERN_ERR "%s_attach error: init status %d\n",
+ I2C_NAME(client), i);
+ } else {
+ dprintk(1,
+ KERN_INFO
+ "%s_attach: chip version %x at address 0x%x\n",
+ I2C_NAME(client), saa711x_read(client, 0x00) >> 4,
+ client->addr << 1);
+ }
+
+ return 0;
+}
+
+static int
+saa711x_attach_adapter (struct i2c_adapter *adapter)
+{
+ dprintk(1,
+ KERN_INFO
+ "saa711x.c: starting probe for adapter %s (0x%x)\n",
+ I2C_NAME(adapter), adapter->id);
+ return i2c_probe(adapter, &addr_data, &saa711x_detect_client);
+}
+
+static int
+saa711x_detach_client (struct i2c_client *client)
+{
+ struct saa711x *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_saa711x = {
+ .driver = {
+ .name = "saa711x",
+ },
+ .id = I2C_DRIVERID_SAA711X,
+ .attach_adapter = saa711x_attach_adapter,
+ .detach_client = saa711x_detach_client,
+ .command = saa711x_command,
+};
+
+static int __init
+saa711x_init (void)
+{
+ return i2c_add_driver(&i2c_driver_saa711x);
+}
+
+static void __exit
+saa711x_exit (void)
+{
+ i2c_del_driver(&i2c_driver_saa711x);
+}
+
+module_init(saa711x_init);
+module_exit(saa711x_exit);
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