#include <linux/major.h>
#include <linux/module.h>
#include <linux/mm.h>
-#include <linux/sched.h>
#include <linux/slab.h>
-#include <linux/videodev.h>
-#include <linux/video_decoder.h>
+#include <linux/videodev2.h>
#include <linux/i2c.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv.h>
#include "saa7191.h"
-#define SAA7191_MODULE_VERSION "0.0.3"
+#define SAA7191_MODULE_VERSION "0.0.5"
MODULE_DESCRIPTION("Philips SAA7191 video decoder driver");
MODULE_VERSION(SAA7191_MODULE_VERSION);
MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
MODULE_LICENSE("GPL");
+
+// #define SAA7191_DEBUG
+
+#ifdef SAA7191_DEBUG
+#define dprintk(x...) printk("SAA7191: " x);
+#else
+#define dprintk(x...)
+#endif
+
+#define SAA7191_SYNC_COUNT 30
+#define SAA7191_SYNC_DELAY 100 /* milliseconds */
+
struct saa7191 {
- struct i2c_client *client;
+ struct v4l2_subdev sd;
/* the register values are stored here as the actual
* I2C-registers are write-only */
- unsigned char reg[25];
+ u8 reg[25];
- unsigned char norm;
- unsigned char input;
+ int input;
+ v4l2_std_id norm;
};
-static struct i2c_driver i2c_driver_saa7191;
+static inline struct saa7191 *to_saa7191(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct saa7191, sd);
+}
-static const unsigned char initseq[] = {
+static const u8 initseq[] = {
0, /* Subaddress */
- 0x50, /* SAA7191_REG_IDEL */
- 0x30, /* SAA7191_REG_HSYB */
- 0x00, /* SAA7191_REG_HSYS */
- 0xe8, /* SAA7191_REG_HCLB */
- 0xb6, /* SAA7191_REG_HCLS */
- 0xf4, /* SAA7191_REG_HPHI */
- 0x01, /* SAA7191_REG_LUMA - chrominance trap active (CVBS) */
- 0x00, /* SAA7191_REG_HUEC */
- 0xf8, /* SAA7191_REG_CKTQ */
- 0xf8, /* SAA7191_REG_CKTS */
- 0x90, /* SAA7191_REG_PLSE */
- 0x90, /* SAA7191_REG_SESE */
- 0x00, /* SAA7191_REG_GAIN */
- 0x0c, /* SAA7191_REG_STDC - not SECAM, slow time constant */
- 0x78, /* SAA7191_REG_IOCK - chrominance from CVBS, GPSW1 & 2 off */
- 0x99, /* SAA7191_REG_CTL3 - automatic field detection */
- 0x00, /* SAA7191_REG_CTL4 */
- 0x2c, /* SAA7191_REG_CHCV */
+
+ 0x50, /* (0x50) SAA7191_REG_IDEL */
+
+ /* 50 Hz signal timing */
+ 0x30, /* (0x30) SAA7191_REG_HSYB */
+ 0x00, /* (0x00) SAA7191_REG_HSYS */
+ 0xe8, /* (0xe8) SAA7191_REG_HCLB */
+ 0xb6, /* (0xb6) SAA7191_REG_HCLS */
+ 0xf4, /* (0xf4) SAA7191_REG_HPHI */
+
+ /* control */
+ SAA7191_LUMA_APER_1, /* (0x01) SAA7191_REG_LUMA - CVBS mode */
+ 0x00, /* (0x00) SAA7191_REG_HUEC */
+ 0xf8, /* (0xf8) SAA7191_REG_CKTQ */
+ 0xf8, /* (0xf8) SAA7191_REG_CKTS */
+ 0x90, /* (0x90) SAA7191_REG_PLSE */
+ 0x90, /* (0x90) SAA7191_REG_SESE */
+ 0x00, /* (0x00) SAA7191_REG_GAIN */
+ SAA7191_STDC_NFEN | SAA7191_STDC_HRMV, /* (0x0c) SAA7191_REG_STDC
+ * - not SECAM,
+ * slow time constant */
+ SAA7191_IOCK_OEDC | SAA7191_IOCK_OEHS | SAA7191_IOCK_OEVS
+ | SAA7191_IOCK_OEDY, /* (0x78) SAA7191_REG_IOCK
+ * - chroma from CVBS, GPSW1 & 2 off */
+ SAA7191_CTL3_AUFD | SAA7191_CTL3_SCEN | SAA7191_CTL3_OFTS
+ | SAA7191_CTL3_YDEL0, /* (0x99) SAA7191_REG_CTL3
+ * - automatic field detection */
+ 0x00, /* (0x00) SAA7191_REG_CTL4 */
+ 0x2c, /* (0x2c) SAA7191_REG_CHCV - PAL nominal value */
0x00, /* unused */
0x00, /* unused */
- 0x34, /* SAA7191_REG_HS6B */
- 0x0a, /* SAA7191_REG_HS6S */
- 0xf4, /* SAA7191_REG_HC6B */
- 0xce, /* SAA7191_REG_HC6S */
- 0xf4, /* SAA7191_REG_HP6I */
+
+ /* 60 Hz signal timing */
+ 0x34, /* (0x34) SAA7191_REG_HS6B */
+ 0x0a, /* (0x0a) SAA7191_REG_HS6S */
+ 0xf4, /* (0xf4) SAA7191_REG_HC6B */
+ 0xce, /* (0xce) SAA7191_REG_HC6S */
+ 0xf4, /* (0xf4) SAA7191_REG_HP6I */
};
/* SAA7191 register handling */
-static unsigned char saa7191_read_reg(struct i2c_client *client,
- unsigned char reg)
+static u8 saa7191_read_reg(struct v4l2_subdev *sd, u8 reg)
{
- return ((struct saa7191 *)i2c_get_clientdata(client))->reg[reg];
+ return to_saa7191(sd)->reg[reg];
}
-static int saa7191_read_status(struct i2c_client *client,
- unsigned char *value)
+static int saa7191_read_status(struct v4l2_subdev *sd, u8 *value)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret;
ret = i2c_master_recv(client, value, 1);
if (ret < 0) {
- printk(KERN_ERR "SAA7191: saa7191_read_status(): read failed");
+ printk(KERN_ERR "SAA7191: saa7191_read_status(): read failed\n");
return ret;
}
}
-static int saa7191_write_reg(struct i2c_client *client, unsigned char reg,
- unsigned char value)
+static int saa7191_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
- ((struct saa7191 *)i2c_get_clientdata(client))->reg[reg] = value;
+ to_saa7191(sd)->reg[reg] = value;
return i2c_smbus_write_byte_data(client, reg, value);
}
/* the first byte of data must be the first subaddress number (register) */
-static int saa7191_write_block(struct i2c_client *client,
- unsigned char length, unsigned char *data)
+static int saa7191_write_block(struct v4l2_subdev *sd,
+ u8 length, const u8 *data)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct saa7191 *decoder = to_saa7191(sd);
int i;
int ret;
- struct saa7191 *decoder = (struct saa7191 *)i2c_get_clientdata(client);
for (i = 0; i < (length - 1); i++) {
decoder->reg[data[0] + i] = data[i + 1];
}
ret = i2c_master_send(client, data, length);
if (ret < 0) {
printk(KERN_ERR "SAA7191: saa7191_write_block(): "
- "write failed");
+ "write failed\n");
return ret;
}
/* Helper functions */
-static int saa7191_set_input(struct i2c_client *client, int input)
+static int saa7191_s_routing(struct v4l2_subdev *sd,
+ u32 input, u32 output, u32 config)
{
- unsigned char luma = saa7191_read_reg(client, SAA7191_REG_LUMA);
- unsigned char iock = saa7191_read_reg(client, SAA7191_REG_IOCK);
+ struct saa7191 *decoder = to_saa7191(sd);
+ u8 luma = saa7191_read_reg(sd, SAA7191_REG_LUMA);
+ u8 iock = saa7191_read_reg(sd, SAA7191_REG_IOCK);
int err;
switch (input) {
return -EINVAL;
}
- err = saa7191_write_reg(client, SAA7191_REG_LUMA, luma);
+ err = saa7191_write_reg(sd, SAA7191_REG_LUMA, luma);
if (err)
return -EIO;
- err = saa7191_write_reg(client, SAA7191_REG_IOCK, iock);
+ err = saa7191_write_reg(sd, SAA7191_REG_IOCK, iock);
if (err)
return -EIO;
+ decoder->input = input;
+
return 0;
}
-static int saa7191_set_norm(struct i2c_client *client, int norm)
+static int saa7191_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
{
- struct saa7191 *decoder = i2c_get_clientdata(client);
- unsigned char stdc = saa7191_read_reg(client, SAA7191_REG_STDC);
- unsigned char ctl3 = saa7191_read_reg(client, SAA7191_REG_CTL3);
- unsigned char chcv = saa7191_read_reg(client, SAA7191_REG_CHCV);
+ struct saa7191 *decoder = to_saa7191(sd);
+ u8 stdc = saa7191_read_reg(sd, SAA7191_REG_STDC);
+ u8 ctl3 = saa7191_read_reg(sd, SAA7191_REG_CTL3);
+ u8 chcv = saa7191_read_reg(sd, SAA7191_REG_CHCV);
int err;
- switch(norm) {
- case SAA7191_NORM_AUTO: {
- unsigned char status;
-
- // does status depend on current norm ?
- if (saa7191_read_status(client, &status))
- return -EIO;
-
- stdc &= ~SAA7191_STDC_SECS;
- ctl3 &= ~SAA7191_CTL3_FSEL;
- ctl3 |= SAA7191_CTL3_AUFD;
- chcv = (status & SAA7191_STATUS_FIDT)
- ? SAA7191_CHCV_NTSC : SAA7191_CHCV_PAL;
- break;
- }
- case SAA7191_NORM_PAL:
+ if (norm & V4L2_STD_PAL) {
stdc &= ~SAA7191_STDC_SECS;
ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL);
chcv = SAA7191_CHCV_PAL;
- break;
- case SAA7191_NORM_NTSC:
+ } else if (norm & V4L2_STD_NTSC) {
stdc &= ~SAA7191_STDC_SECS;
ctl3 &= ~SAA7191_CTL3_AUFD;
ctl3 |= SAA7191_CTL3_FSEL;
chcv = SAA7191_CHCV_NTSC;
- break;
- case SAA7191_NORM_SECAM:
+ } else if (norm & V4L2_STD_SECAM) {
stdc |= SAA7191_STDC_SECS;
ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL);
chcv = SAA7191_CHCV_PAL;
- break;
- default:
+ } else {
return -EINVAL;
}
- err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3);
+ err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3);
if (err)
return -EIO;
- err = saa7191_write_reg(client, SAA7191_REG_STDC, stdc);
+ err = saa7191_write_reg(sd, SAA7191_REG_STDC, stdc);
if (err)
return -EIO;
- err = saa7191_write_reg(client, SAA7191_REG_CHCV, chcv);
+ err = saa7191_write_reg(sd, SAA7191_REG_CHCV, chcv);
if (err)
return -EIO;
decoder->norm = norm;
+ dprintk("ctl3: %02x stdc: %02x chcv: %02x\n", ctl3,
+ stdc, chcv);
+ dprintk("norm: %llx\n", norm);
+
return 0;
}
-static int saa7191_get_controls(struct i2c_client *client,
- struct saa7191_control *ctrl)
+static int saa7191_wait_for_signal(struct v4l2_subdev *sd, u8 *status)
{
- unsigned char hue = saa7191_read_reg(client, SAA7191_REG_HUEC);
- unsigned char stdc = saa7191_read_reg(client, SAA7191_REG_STDC);
+ int i = 0;
- if (hue < 0x80) {
- hue += 0x80;
- } else {
- hue -= 0x80;
+ dprintk("Checking for signal...\n");
+
+ for (i = 0; i < SAA7191_SYNC_COUNT; i++) {
+ if (saa7191_read_status(sd, status))
+ return -EIO;
+
+ if (((*status) & SAA7191_STATUS_HLCK) == 0) {
+ dprintk("Signal found\n");
+ return 0;
+ }
+
+ msleep(SAA7191_SYNC_DELAY);
}
- ctrl->hue = hue;
- ctrl->vtrc = (stdc & SAA7191_STDC_VTRC)
- ? SAA7191_VALUE_ENABLED : SAA7191_VALUE_DISABLED;
+ dprintk("No signal\n");
- return 0;
+ return -EBUSY;
}
-static int saa7191_set_controls(struct i2c_client *client,
- struct saa7191_control *ctrl)
+static int saa7191_querystd(struct v4l2_subdev *sd, v4l2_std_id *norm)
{
- int err;
+ struct saa7191 *decoder = to_saa7191(sd);
+ u8 stdc = saa7191_read_reg(sd, SAA7191_REG_STDC);
+ u8 ctl3 = saa7191_read_reg(sd, SAA7191_REG_CTL3);
+ u8 status;
+ v4l2_std_id old_norm = decoder->norm;
+ int err = 0;
- if (ctrl->hue >= 0) {
- unsigned char hue = ctrl->hue & 0xff;
- if (hue < 0x80) {
- hue += 0x80;
- } else {
- hue -= 0x80;
- }
- err = saa7191_write_reg(client, SAA7191_REG_HUEC, hue);
- if (err)
- return -EIO;
+ dprintk("SAA7191 extended signal auto-detection...\n");
+
+ *norm = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM;
+ stdc &= ~SAA7191_STDC_SECS;
+ ctl3 &= ~(SAA7191_CTL3_FSEL);
+
+ err = saa7191_write_reg(sd, SAA7191_REG_STDC, stdc);
+ if (err) {
+ err = -EIO;
+ goto out;
+ }
+ err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3);
+ if (err) {
+ err = -EIO;
+ goto out;
}
- if (ctrl->vtrc >= 0) {
- unsigned char stdc =
- saa7191_read_reg(client, SAA7191_REG_STDC);
- if (ctrl->vtrc) {
- stdc |= SAA7191_STDC_VTRC;
- } else {
- stdc &= ~SAA7191_STDC_VTRC;
- }
+ ctl3 |= SAA7191_CTL3_AUFD;
+ err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3);
+ if (err) {
+ err = -EIO;
+ goto out;
+ }
- err = saa7191_write_reg(client, SAA7191_REG_STDC, stdc);
- if (err)
- return -EIO;
+ msleep(SAA7191_SYNC_DELAY);
+
+ err = saa7191_wait_for_signal(sd, &status);
+ if (err)
+ goto out;
+
+ if (status & SAA7191_STATUS_FIDT) {
+ /* 60Hz signal -> NTSC */
+ dprintk("60Hz signal: NTSC\n");
+ *norm = V4L2_STD_NTSC;
+ return 0;
}
- return 0;
-}
+ /* 50Hz signal */
+ dprintk("50Hz signal: Trying PAL...\n");
-/* I2C-interface */
+ /* try PAL first */
+ err = saa7191_s_std(sd, V4L2_STD_PAL);
+ if (err)
+ goto out;
-static int saa7191_attach(struct i2c_adapter *adap, int addr, int kind)
-{
- int err = 0;
- struct saa7191 *decoder;
- struct i2c_client *client;
+ msleep(SAA7191_SYNC_DELAY);
- printk(KERN_INFO "Philips SAA7191 driver version %s\n",
- SAA7191_MODULE_VERSION);
+ err = saa7191_wait_for_signal(sd, &status);
+ if (err)
+ goto out;
- client = kmalloc(sizeof(*client), GFP_KERNEL);
- if (!client)
- return -ENOMEM;
- decoder = kmalloc(sizeof(*decoder), GFP_KERNEL);
- if (!decoder) {
- err = -ENOMEM;
- goto out_free_client;
+ /* not 50Hz ? */
+ if (status & SAA7191_STATUS_FIDT) {
+ dprintk("No 50Hz signal\n");
+ saa7191_s_std(sd, old_norm);
+ return -EAGAIN;
}
- memset(client, 0, sizeof(struct i2c_client));
- memset(decoder, 0, sizeof(struct saa7191));
-
- client->addr = addr;
- client->adapter = adap;
- client->driver = &i2c_driver_saa7191;
- client->flags = 0;
- strcpy(client->name, "saa7191 client");
- i2c_set_clientdata(client, decoder);
+ if (status & SAA7191_STATUS_CODE) {
+ dprintk("PAL\n");
+ *norm = V4L2_STD_PAL;
+ return saa7191_s_std(sd, old_norm);
+ }
- decoder->client = client;
+ dprintk("No color detected with PAL - Trying SECAM...\n");
- err = i2c_attach_client(client);
+ /* no color detected ? -> try SECAM */
+ err = saa7191_s_std(sd, V4L2_STD_SECAM);
if (err)
- goto out_free_decoder;
+ goto out;
- decoder->input = SAA7191_INPUT_COMPOSITE;
- decoder->norm = SAA7191_NORM_AUTO;
+ msleep(SAA7191_SYNC_DELAY);
- err = saa7191_write_block(client, sizeof(initseq),
- (unsigned char *)initseq);
- if (err) {
- printk(KERN_ERR "SAA7191 initialization failed\n");
- goto out_detach_client;
+ err = saa7191_wait_for_signal(sd, &status);
+ if (err)
+ goto out;
+
+ /* not 50Hz ? */
+ if (status & SAA7191_STATUS_FIDT) {
+ dprintk("No 50Hz signal\n");
+ err = -EAGAIN;
+ goto out;
}
- printk(KERN_INFO "SAA7191 initialized\n");
+ if (status & SAA7191_STATUS_CODE) {
+ /* Color detected -> SECAM */
+ dprintk("SECAM\n");
+ *norm = V4L2_STD_SECAM;
+ return saa7191_s_std(sd, old_norm);
+ }
- return 0;
+ dprintk("No color detected with SECAM - Going back to PAL.\n");
-out_detach_client:
- i2c_detach_client(client);
-out_free_decoder:
- kfree(decoder);
-out_free_client:
- kfree(client);
- return err;
+out:
+ return saa7191_s_std(sd, old_norm);
}
-static int saa7191_probe(struct i2c_adapter *adap)
+static int saa7191_autodetect_norm(struct v4l2_subdev *sd)
{
- /* Always connected to VINO */
- if (adap->id == I2C_HW_SGI_VINO)
- return saa7191_attach(adap, SAA7191_ADDR, 0);
- /* Feel free to add probe here :-) */
- return -ENODEV;
-}
+ u8 status;
-static int saa7191_detach(struct i2c_client *client)
-{
- struct saa7191 *decoder = i2c_get_clientdata(client);
+ dprintk("SAA7191 signal auto-detection...\n");
- i2c_detach_client(client);
- kfree(decoder);
- kfree(client);
- return 0;
-}
+ dprintk("Reading status...\n");
-static int saa7191_command(struct i2c_client *client, unsigned int cmd,
- void *arg)
-{
- struct saa7191 *decoder = i2c_get_clientdata(client);
+ if (saa7191_read_status(sd, &status))
+ return -EIO;
- switch (cmd) {
- case DECODER_GET_CAPABILITIES: {
- struct video_decoder_capability *cap = arg;
+ dprintk("Checking for signal...\n");
- cap->flags = VIDEO_DECODER_PAL | VIDEO_DECODER_NTSC |
- VIDEO_DECODER_SECAM | VIDEO_DECODER_AUTO;
- cap->inputs = (client->adapter->id == I2C_HW_SGI_VINO) ? 2 : 1;
- cap->outputs = 1;
- break;
+ /* no signal ? */
+ if (status & SAA7191_STATUS_HLCK) {
+ dprintk("No signal\n");
+ return -EBUSY;
}
- case DECODER_GET_STATUS: {
- int *iarg = arg;
- unsigned char status;
- int res = 0;
- if (saa7191_read_status(client, &status)) {
- return -EIO;
- }
- if ((status & SAA7191_STATUS_HLCK) == 0)
- res |= DECODER_STATUS_GOOD;
- if (status & SAA7191_STATUS_CODE)
- res |= DECODER_STATUS_COLOR;
- switch (decoder->norm) {
- case SAA7191_NORM_NTSC:
- res |= DECODER_STATUS_NTSC;
- break;
- case SAA7191_NORM_PAL:
- res |= DECODER_STATUS_PAL;
+ dprintk("Signal found\n");
+
+ if (status & SAA7191_STATUS_FIDT) {
+ /* 60hz signal -> NTSC */
+ dprintk("NTSC\n");
+ return saa7191_s_std(sd, V4L2_STD_NTSC);
+ } else {
+ /* 50hz signal -> PAL */
+ dprintk("PAL\n");
+ return saa7191_s_std(sd, V4L2_STD_PAL);
+ }
+}
+
+static int saa7191_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ u8 reg;
+ int ret = 0;
+
+ switch (ctrl->id) {
+ case SAA7191_CONTROL_BANDPASS:
+ case SAA7191_CONTROL_BANDPASS_WEIGHT:
+ case SAA7191_CONTROL_CORING:
+ reg = saa7191_read_reg(sd, SAA7191_REG_LUMA);
+ switch (ctrl->id) {
+ case SAA7191_CONTROL_BANDPASS:
+ ctrl->value = ((s32)reg & SAA7191_LUMA_BPSS_MASK)
+ >> SAA7191_LUMA_BPSS_SHIFT;
break;
- case SAA7191_NORM_SECAM:
- res |= DECODER_STATUS_SECAM;
+ case SAA7191_CONTROL_BANDPASS_WEIGHT:
+ ctrl->value = ((s32)reg & SAA7191_LUMA_APER_MASK)
+ >> SAA7191_LUMA_APER_SHIFT;
break;
- case SAA7191_NORM_AUTO:
- default:
- if (status & SAA7191_STATUS_FIDT)
- res |= DECODER_STATUS_NTSC;
- else
- res |= DECODER_STATUS_PAL;
+ case SAA7191_CONTROL_CORING:
+ ctrl->value = ((s32)reg & SAA7191_LUMA_CORI_MASK)
+ >> SAA7191_LUMA_CORI_SHIFT;
break;
}
- *iarg = res;
break;
+ case SAA7191_CONTROL_FORCE_COLOUR:
+ case SAA7191_CONTROL_CHROMA_GAIN:
+ reg = saa7191_read_reg(sd, SAA7191_REG_GAIN);
+ if (ctrl->id == SAA7191_CONTROL_FORCE_COLOUR)
+ ctrl->value = ((s32)reg & SAA7191_GAIN_COLO) ? 1 : 0;
+ else
+ ctrl->value = ((s32)reg & SAA7191_GAIN_LFIS_MASK)
+ >> SAA7191_GAIN_LFIS_SHIFT;
+ break;
+ case V4L2_CID_HUE:
+ reg = saa7191_read_reg(sd, SAA7191_REG_HUEC);
+ if (reg < 0x80)
+ reg += 0x80;
+ else
+ reg -= 0x80;
+ ctrl->value = (s32)reg;
+ break;
+ case SAA7191_CONTROL_VTRC:
+ reg = saa7191_read_reg(sd, SAA7191_REG_STDC);
+ ctrl->value = ((s32)reg & SAA7191_STDC_VTRC) ? 1 : 0;
+ break;
+ case SAA7191_CONTROL_LUMA_DELAY:
+ reg = saa7191_read_reg(sd, SAA7191_REG_CTL3);
+ ctrl->value = ((s32)reg & SAA7191_CTL3_YDEL_MASK)
+ >> SAA7191_CTL3_YDEL_SHIFT;
+ if (ctrl->value >= 4)
+ ctrl->value -= 8;
+ break;
+ case SAA7191_CONTROL_VNR:
+ reg = saa7191_read_reg(sd, SAA7191_REG_CTL4);
+ ctrl->value = ((s32)reg & SAA7191_CTL4_VNOI_MASK)
+ >> SAA7191_CTL4_VNOI_SHIFT;
+ break;
+ default:
+ ret = -EINVAL;
}
- case DECODER_SET_NORM: {
- int *iarg = arg;
-
- switch (*iarg) {
- case VIDEO_MODE_AUTO:
- return saa7191_set_norm(client, SAA7191_NORM_AUTO);
- case VIDEO_MODE_PAL:
- return saa7191_set_norm(client, SAA7191_NORM_PAL);
- case VIDEO_MODE_NTSC:
- return saa7191_set_norm(client, SAA7191_NORM_NTSC);
- case VIDEO_MODE_SECAM:
- return saa7191_set_norm(client, SAA7191_NORM_SECAM);
- default:
- return -EINVAL;
+
+ return ret;
+}
+
+static int saa7191_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ u8 reg;
+ int ret = 0;
+
+ switch (ctrl->id) {
+ case SAA7191_CONTROL_BANDPASS:
+ case SAA7191_CONTROL_BANDPASS_WEIGHT:
+ case SAA7191_CONTROL_CORING:
+ reg = saa7191_read_reg(sd, SAA7191_REG_LUMA);
+ switch (ctrl->id) {
+ case SAA7191_CONTROL_BANDPASS:
+ reg &= ~SAA7191_LUMA_BPSS_MASK;
+ reg |= (ctrl->value << SAA7191_LUMA_BPSS_SHIFT)
+ & SAA7191_LUMA_BPSS_MASK;
+ break;
+ case SAA7191_CONTROL_BANDPASS_WEIGHT:
+ reg &= ~SAA7191_LUMA_APER_MASK;
+ reg |= (ctrl->value << SAA7191_LUMA_APER_SHIFT)
+ & SAA7191_LUMA_APER_MASK;
+ break;
+ case SAA7191_CONTROL_CORING:
+ reg &= ~SAA7191_LUMA_CORI_MASK;
+ reg |= (ctrl->value << SAA7191_LUMA_CORI_SHIFT)
+ & SAA7191_LUMA_CORI_MASK;
+ break;
}
+ ret = saa7191_write_reg(sd, SAA7191_REG_LUMA, reg);
break;
- }
- case DECODER_SET_INPUT: {
- int *iarg = arg;
-
- switch (client->adapter->id) {
- case I2C_HW_SGI_VINO:
- return saa7191_set_input(client, *iarg);
- default:
- if (*iarg != 0)
- return -EINVAL;
+ case SAA7191_CONTROL_FORCE_COLOUR:
+ case SAA7191_CONTROL_CHROMA_GAIN:
+ reg = saa7191_read_reg(sd, SAA7191_REG_GAIN);
+ if (ctrl->id == SAA7191_CONTROL_FORCE_COLOUR) {
+ if (ctrl->value)
+ reg |= SAA7191_GAIN_COLO;
+ else
+ reg &= ~SAA7191_GAIN_COLO;
+ } else {
+ reg &= ~SAA7191_GAIN_LFIS_MASK;
+ reg |= (ctrl->value << SAA7191_GAIN_LFIS_SHIFT)
+ & SAA7191_GAIN_LFIS_MASK;
}
+ ret = saa7191_write_reg(sd, SAA7191_REG_GAIN, reg);
break;
- }
- case DECODER_SET_OUTPUT: {
- int *iarg = arg;
-
- /* not much choice of outputs */
- if (*iarg != 0)
- return -EINVAL;
+ case V4L2_CID_HUE:
+ reg = ctrl->value & 0xff;
+ if (reg < 0x80)
+ reg += 0x80;
+ else
+ reg -= 0x80;
+ ret = saa7191_write_reg(sd, SAA7191_REG_HUEC, reg);
break;
- }
- case DECODER_ENABLE_OUTPUT: {
- /* Always enabled */
+ case SAA7191_CONTROL_VTRC:
+ reg = saa7191_read_reg(sd, SAA7191_REG_STDC);
+ if (ctrl->value)
+ reg |= SAA7191_STDC_VTRC;
+ else
+ reg &= ~SAA7191_STDC_VTRC;
+ ret = saa7191_write_reg(sd, SAA7191_REG_STDC, reg);
break;
- }
- case DECODER_SET_PICTURE: {
- struct video_picture *pic = arg;
- unsigned val;
- int err;
-
- val = (pic->hue >> 8) - 0x80;
- err = saa7191_write_reg(client, SAA7191_REG_HUEC, val);
- if (err)
- return -EIO;
+ case SAA7191_CONTROL_LUMA_DELAY: {
+ s32 value = ctrl->value;
+ if (value < 0)
+ value += 8;
+ reg = saa7191_read_reg(sd, SAA7191_REG_CTL3);
+ reg &= ~SAA7191_CTL3_YDEL_MASK;
+ reg |= (value << SAA7191_CTL3_YDEL_SHIFT)
+ & SAA7191_CTL3_YDEL_MASK;
+ ret = saa7191_write_reg(sd, SAA7191_REG_CTL3, reg);
break;
}
- case DECODER_SAA7191_GET_STATUS: {
- struct saa7191_status *status = arg;
- unsigned char status_reg;
-
- if (saa7191_read_status(client, &status_reg))
- return -EIO;
- status->signal = ((status_reg & SAA7191_STATUS_HLCK) == 0)
- ? SAA7191_VALUE_ENABLED : SAA7191_VALUE_DISABLED;
- status->ntsc = (status_reg & SAA7191_STATUS_FIDT)
- ? SAA7191_VALUE_ENABLED : SAA7191_VALUE_DISABLED;
- status->color = (status_reg & SAA7191_STATUS_CODE)
- ? SAA7191_VALUE_ENABLED : SAA7191_VALUE_DISABLED;
-
- status->input = decoder->input;
- status->norm = decoder->norm;
- }
- case DECODER_SAA7191_SET_NORM: {
- int *norm = arg;
- return saa7191_set_norm(client, *norm);
- }
- case DECODER_SAA7191_GET_CONTROLS: {
- struct saa7191_control *ctrl = arg;
- return saa7191_get_controls(client, ctrl);
- }
- case DECODER_SAA7191_SET_CONTROLS: {
- struct saa7191_control *ctrl = arg;
- return saa7191_set_controls(client, ctrl);
- }
+ case SAA7191_CONTROL_VNR:
+ reg = saa7191_read_reg(sd, SAA7191_REG_CTL4);
+ reg &= ~SAA7191_CTL4_VNOI_MASK;
+ reg |= (ctrl->value << SAA7191_CTL4_VNOI_SHIFT)
+ & SAA7191_CTL4_VNOI_MASK;
+ ret = saa7191_write_reg(sd, SAA7191_REG_CTL4, reg);
+ break;
default:
- return -EINVAL;
+ ret = -EINVAL;
}
+ return ret;
+}
+
+/* I2C-interface */
+
+static int saa7191_g_input_status(struct v4l2_subdev *sd, u32 *status)
+{
+ u8 status_reg;
+ int res = V4L2_IN_ST_NO_SIGNAL;
+
+ if (saa7191_read_status(sd, &status_reg))
+ return -EIO;
+ if ((status_reg & SAA7191_STATUS_HLCK) == 0)
+ res = 0;
+ if (!(status_reg & SAA7191_STATUS_CODE))
+ res |= V4L2_IN_ST_NO_COLOR;
+ *status = res;
return 0;
}
-static struct i2c_driver i2c_driver_saa7191 = {
- .owner = THIS_MODULE,
- .name = "saa7191",
- .id = I2C_DRIVERID_SAA7191,
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = saa7191_probe,
- .detach_client = saa7191_detach,
- .command = saa7191_command
+
+static int saa7191_g_chip_ident(struct v4l2_subdev *sd,
+ struct v4l2_dbg_chip_ident *chip)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7191, 0);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops saa7191_core_ops = {
+ .g_chip_ident = saa7191_g_chip_ident,
+ .g_ctrl = saa7191_g_ctrl,
+ .s_ctrl = saa7191_s_ctrl,
+ .s_std = saa7191_s_std,
+};
+
+static const struct v4l2_subdev_video_ops saa7191_video_ops = {
+ .s_routing = saa7191_s_routing,
+ .querystd = saa7191_querystd,
+ .g_input_status = saa7191_g_input_status,
+};
+
+static const struct v4l2_subdev_ops saa7191_ops = {
+ .core = &saa7191_core_ops,
+ .video = &saa7191_video_ops,
};
-static int saa7191_init(void)
+static int saa7191_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
- return i2c_add_driver(&i2c_driver_saa7191);
+ int err = 0;
+ struct saa7191 *decoder;
+ struct v4l2_subdev *sd;
+
+ v4l_info(client, "chip found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
+
+ decoder = kzalloc(sizeof(*decoder), GFP_KERNEL);
+ if (!decoder)
+ return -ENOMEM;
+
+ sd = &decoder->sd;
+ v4l2_i2c_subdev_init(sd, client, &saa7191_ops);
+
+ err = saa7191_write_block(sd, sizeof(initseq), initseq);
+ if (err) {
+ printk(KERN_ERR "SAA7191 initialization failed\n");
+ kfree(decoder);
+ return err;
+ }
+
+ printk(KERN_INFO "SAA7191 initialized\n");
+
+ decoder->input = SAA7191_INPUT_COMPOSITE;
+ decoder->norm = V4L2_STD_PAL;
+
+ err = saa7191_autodetect_norm(sd);
+ if (err && (err != -EBUSY))
+ printk(KERN_ERR "SAA7191: Signal auto-detection failed\n");
+
+ return 0;
}
-static void saa7191_exit(void)
+static int saa7191_remove(struct i2c_client *client)
{
- i2c_del_driver(&i2c_driver_saa7191);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+ v4l2_device_unregister_subdev(sd);
+ kfree(to_saa7191(sd));
+ return 0;
}
-module_init(saa7191_init);
-module_exit(saa7191_exit);
+static const struct i2c_device_id saa7191_id[] = {
+ { "saa7191", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, saa7191_id);
+
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "saa7191",
+ .probe = saa7191_probe,
+ .remove = saa7191_remove,
+ .id_table = saa7191_id,
+};
git.samba.org / sfrench / cifs-2.6.git / blobdiff