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-rw-r--r--drivers/media/video/tda9887.c801
1 files changed, 801 insertions, 0 deletions
diff --git a/drivers/media/video/tda9887.c b/drivers/media/video/tda9887.c
new file mode 100644
index 000000000000..7fb063a27961
--- /dev/null
+++ b/drivers/media/video/tda9887.c
@@ -0,0 +1,801 @@
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/types.h>
+#include <linux/videodev.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+
+#include <media/audiochip.h>
+#include <media/tuner.h>
+#include <media/id.h>
+
+/* Chips:
+ TDA9885 (PAL, NTSC)
+ TDA9886 (PAL, SECAM, NTSC)
+ TDA9887 (PAL, SECAM, NTSC, FM Radio)
+
+ found on:
+ - Pinnacle PCTV (Jul.2002 Version with MT2032, bttv)
+ TDA9887 (world), TDA9885 (USA)
+ Note: OP2 of tda988x must be set to 1, else MT2032 is disabled!
+ - KNC One TV-Station RDS (saa7134)
+*/
+
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = {
+ 0x84 >>1,
+ 0x86 >>1,
+ 0x96 >>1,
+ I2C_CLIENT_END,
+};
+static unsigned short normal_i2c_range[] = {I2C_CLIENT_END,I2C_CLIENT_END};
+I2C_CLIENT_INSMOD;
+
+/* insmod options */
+static unsigned int debug = 0;
+module_param(debug, int, 0644);
+MODULE_LICENSE("GPL");
+
+/* ---------------------------------------------------------------------- */
+
+#define UNSET (-1U)
+#define PREFIX "tda9885/6/7: "
+#define dprintk if (debug) printk
+
+struct tda9887 {
+ struct i2c_client client;
+ v4l2_std_id std;
+ unsigned int radio;
+ unsigned int config;
+ unsigned int pinnacle_id;
+ unsigned int using_v4l2;
+};
+
+struct tvnorm {
+ v4l2_std_id std;
+ char *name;
+ unsigned char b;
+ unsigned char c;
+ unsigned char e;
+};
+
+static struct i2c_driver driver;
+static struct i2c_client client_template;
+
+/* ---------------------------------------------------------------------- */
+
+//
+// TDA defines
+//
+
+//// first reg (b)
+#define cVideoTrapBypassOFF 0x00 // bit b0
+#define cVideoTrapBypassON 0x01 // bit b0
+
+#define cAutoMuteFmInactive 0x00 // bit b1
+#define cAutoMuteFmActive 0x02 // bit b1
+
+#define cIntercarrier 0x00 // bit b2
+#define cQSS 0x04 // bit b2
+
+#define cPositiveAmTV 0x00 // bit b3:4
+#define cFmRadio 0x08 // bit b3:4
+#define cNegativeFmTV 0x10 // bit b3:4
+
+
+#define cForcedMuteAudioON 0x20 // bit b5
+#define cForcedMuteAudioOFF 0x00 // bit b5
+
+#define cOutputPort1Active 0x00 // bit b6
+#define cOutputPort1Inactive 0x40 // bit b6
+
+#define cOutputPort2Active 0x00 // bit b7
+#define cOutputPort2Inactive 0x80 // bit b7
+
+
+//// second reg (c)
+#define cDeemphasisOFF 0x00 // bit c5
+#define cDeemphasisON 0x20 // bit c5
+
+#define cDeemphasis75 0x00 // bit c6
+#define cDeemphasis50 0x40 // bit c6
+
+#define cAudioGain0 0x00 // bit c7
+#define cAudioGain6 0x80 // bit c7
+
+
+//// third reg (e)
+#define cAudioIF_4_5 0x00 // bit e0:1
+#define cAudioIF_5_5 0x01 // bit e0:1
+#define cAudioIF_6_0 0x02 // bit e0:1
+#define cAudioIF_6_5 0x03 // bit e0:1
+
+
+#define cVideoIF_58_75 0x00 // bit e2:4
+#define cVideoIF_45_75 0x04 // bit e2:4
+#define cVideoIF_38_90 0x08 // bit e2:4
+#define cVideoIF_38_00 0x0C // bit e2:4
+#define cVideoIF_33_90 0x10 // bit e2:4
+#define cVideoIF_33_40 0x14 // bit e2:4
+#define cRadioIF_45_75 0x18 // bit e2:4
+#define cRadioIF_38_90 0x1C // bit e2:4
+
+
+#define cTunerGainNormal 0x00 // bit e5
+#define cTunerGainLow 0x20 // bit e5
+
+#define cGating_18 0x00 // bit e6
+#define cGating_36 0x40 // bit e6
+
+#define cAgcOutON 0x80 // bit e7
+#define cAgcOutOFF 0x00 // bit e7
+
+/* ---------------------------------------------------------------------- */
+
+static struct tvnorm tvnorms[] = {
+ {
+ .std = V4L2_STD_PAL_BG,
+ .name = "PAL-BG",
+ .b = ( cNegativeFmTV |
+ cQSS ),
+ .c = ( cDeemphasisON |
+ cDeemphasis50 ),
+ .e = ( cAudioIF_5_5 |
+ cVideoIF_38_90 ),
+ },{
+ .std = V4L2_STD_PAL_I,
+ .name = "PAL-I",
+ .b = ( cNegativeFmTV |
+ cQSS ),
+ .c = ( cDeemphasisON |
+ cDeemphasis50 ),
+ .e = ( cAudioIF_6_0 |
+ cVideoIF_38_90 ),
+ },{
+ .std = V4L2_STD_PAL_DK,
+ .name = "PAL-DK",
+ .b = ( cNegativeFmTV |
+ cQSS ),
+ .c = ( cDeemphasisON |
+ cDeemphasis50 ),
+ .e = ( cAudioIF_6_5 |
+ cVideoIF_38_00 ),
+ },{
+ .std = V4L2_STD_PAL_M | V4L2_STD_PAL_N,
+ .name = "PAL-M/N",
+ .b = ( cNegativeFmTV |
+ cQSS ),
+ .c = ( cDeemphasisON |
+ cDeemphasis75 ),
+ .e = ( cAudioIF_4_5 |
+ cVideoIF_45_75 ),
+ },{
+ .std = V4L2_STD_SECAM_L,
+ .name = "SECAM-L",
+ .b = ( cPositiveAmTV |
+ cQSS ),
+ .e = ( cAudioIF_6_5 |
+ cVideoIF_38_90 ),
+ },{
+ .std = V4L2_STD_SECAM_DK,
+ .name = "SECAM-DK",
+ .b = ( cNegativeFmTV |
+ cQSS ),
+ .c = ( cDeemphasisON |
+ cDeemphasis50 ),
+ .e = ( cAudioIF_6_5 |
+ cVideoIF_38_00 ),
+ },{
+ .std = V4L2_STD_NTSC_M,
+ .name = "NTSC-M",
+ .b = ( cNegativeFmTV |
+ cQSS ),
+ .c = ( cDeemphasisON |
+ cDeemphasis50 ),
+ .e = ( cGating_36 |
+ cAudioIF_4_5 |
+ cVideoIF_45_75 ),
+ },{
+ .std = V4L2_STD_NTSC_M_JP,
+ .name = "NTSC-JP",
+ .b = ( cNegativeFmTV |
+ cQSS ),
+ .c = ( cDeemphasisON |
+ cDeemphasis50 ),
+ .e = ( cGating_36 |
+ cAudioIF_4_5 |
+ cVideoIF_58_75 ),
+ }
+};
+
+static struct tvnorm radio = {
+ .name = "radio",
+ .b = ( cFmRadio |
+ cQSS ),
+ .c = ( cDeemphasisON |
+ cDeemphasis50 ),
+ .e = ( cAudioIF_5_5 |
+ cRadioIF_38_90 ),
+};
+
+/* ---------------------------------------------------------------------- */
+
+static void dump_read_message(unsigned char *buf)
+{
+ static char *afc[16] = {
+ "- 12.5 kHz",
+ "- 37.5 kHz",
+ "- 62.5 kHz",
+ "- 87.5 kHz",
+ "-112.5 kHz",
+ "-137.5 kHz",
+ "-162.5 kHz",
+ "-187.5 kHz [min]",
+ "+187.5 kHz [max]",
+ "+162.5 kHz",
+ "+137.5 kHz",
+ "+112.5 kHz",
+ "+ 87.5 kHz",
+ "+ 62.5 kHz",
+ "+ 37.5 kHz",
+ "+ 12.5 kHz",
+ };
+ printk(PREFIX "read: 0x%2x\n", buf[0]);
+ printk(" after power on : %s\n", (buf[0] & 0x01) ? "yes" : "no");
+ printk(" afc : %s\n", afc[(buf[0] >> 1) & 0x0f]);
+ printk(" fmif level : %s\n", (buf[0] & 0x20) ? "high" : "low");
+ printk(" afc window : %s\n", (buf[0] & 0x40) ? "in" : "out");
+ printk(" vfi level : %s\n", (buf[0] & 0x80) ? "high" : "low");
+}
+
+static void dump_write_message(unsigned char *buf)
+{
+ static char *sound[4] = {
+ "AM/TV",
+ "FM/radio",
+ "FM/TV",
+ "FM/radio"
+ };
+ static char *adjust[32] = {
+ "-16", "-15", "-14", "-13", "-12", "-11", "-10", "-9",
+ "-8", "-7", "-6", "-5", "-4", "-3", "-2", "-1",
+ "0", "+1", "+2", "+3", "+4", "+5", "+6", "+7",
+ "+8", "+9", "+10", "+11", "+12", "+13", "+14", "+15"
+ };
+ static char *deemph[4] = {
+ "no", "no", "75", "50"
+ };
+ static char *carrier[4] = {
+ "4.5 MHz",
+ "5.5 MHz",
+ "6.0 MHz",
+ "6.5 MHz / AM"
+ };
+ static char *vif[8] = {
+ "58.75 MHz",
+ "45.75 MHz",
+ "38.9 MHz",
+ "38.0 MHz",
+ "33.9 MHz",
+ "33.4 MHz",
+ "45.75 MHz + pin13",
+ "38.9 MHz + pin13",
+ };
+ static char *rif[4] = {
+ "44 MHz",
+ "52 MHz",
+ "52 MHz",
+ "44 MHz",
+ };
+
+ printk(PREFIX "write: byte B 0x%02x\n",buf[1]);
+ printk(" B0 video mode : %s\n",
+ (buf[1] & 0x01) ? "video trap" : "sound trap");
+ printk(" B1 auto mute fm : %s\n",
+ (buf[1] & 0x02) ? "yes" : "no");
+ printk(" B2 carrier mode : %s\n",
+ (buf[1] & 0x04) ? "QSS" : "Intercarrier");
+ printk(" B3-4 tv sound/radio : %s\n",
+ sound[(buf[1] & 0x18) >> 3]);
+ printk(" B5 force mute audio: %s\n",
+ (buf[1] & 0x20) ? "yes" : "no");
+ printk(" B6 output port 1 : %s\n",
+ (buf[1] & 0x40) ? "high (inactive)" : "low (active)");
+ printk(" B7 output port 2 : %s\n",
+ (buf[1] & 0x80) ? "high (inactive)" : "low (active)");
+
+ printk(PREFIX "write: byte C 0x%02x\n",buf[2]);
+ printk(" C0-4 top adjustment : %s dB\n", adjust[buf[2] & 0x1f]);
+ printk(" C5-6 de-emphasis : %s\n", deemph[(buf[2] & 0x60) >> 5]);
+ printk(" C7 audio gain : %s\n",
+ (buf[2] & 0x80) ? "-6" : "0");
+
+ printk(PREFIX "write: byte E 0x%02x\n",buf[3]);
+ printk(" E0-1 sound carrier : %s\n",
+ carrier[(buf[3] & 0x03)]);
+ printk(" E6 l pll ganting : %s\n",
+ (buf[3] & 0x40) ? "36" : "13");
+
+ if (buf[1] & 0x08) {
+ /* radio */
+ printk(" E2-4 video if : %s\n",
+ rif[(buf[3] & 0x0c) >> 2]);
+ printk(" E7 vif agc output : %s\n",
+ (buf[3] & 0x80)
+ ? ((buf[3] & 0x10) ? "fm-agc radio" : "sif-agc radio")
+ : "fm radio carrier afc");
+ } else {
+ /* video */
+ printk(" E2-4 video if : %s\n",
+ vif[(buf[3] & 0x1c) >> 2]);
+ printk(" E5 tuner gain : %s\n",
+ (buf[3] & 0x80)
+ ? ((buf[3] & 0x20) ? "external" : "normal")
+ : ((buf[3] & 0x20) ? "minimum" : "normal"));
+ printk(" E7 vif agc output : %s\n",
+ (buf[3] & 0x80)
+ ? ((buf[3] & 0x20)
+ ? "pin3 port, pin22 vif agc out"
+ : "pin22 port, pin3 vif acg ext in")
+ : "pin3+pin22 port");
+ }
+ printk("--\n");
+}
+
+/* ---------------------------------------------------------------------- */
+
+static int tda9887_set_tvnorm(struct tda9887 *t, char *buf)
+{
+ struct tvnorm *norm = NULL;
+ int i;
+
+ if (t->radio) {
+ norm = &radio;
+ } else {
+ for (i = 0; i < ARRAY_SIZE(tvnorms); i++) {
+ if (tvnorms[i].std & t->std) {
+ norm = tvnorms+i;
+ break;
+ }
+ }
+ }
+ if (NULL == norm) {
+ dprintk(PREFIX "Oops: no tvnorm entry found\n");
+ return -1;
+ }
+
+ dprintk(PREFIX "configure for: %s\n",norm->name);
+ buf[1] = norm->b;
+ buf[2] = norm->c;
+ buf[3] = norm->e;
+ return 0;
+}
+
+static unsigned int port1 = UNSET;
+static unsigned int port2 = UNSET;
+static unsigned int qss = UNSET;
+static unsigned int adjust = 0x10;
+module_param(port1, int, 0644);
+module_param(port2, int, 0644);
+module_param(qss, int, 0644);
+module_param(adjust, int, 0644);
+
+static int tda9887_set_insmod(struct tda9887 *t, char *buf)
+{
+ if (UNSET != port1) {
+ if (port1)
+ buf[1] |= cOutputPort1Inactive;
+ else
+ buf[1] &= ~cOutputPort1Inactive;
+ }
+ if (UNSET != port2) {
+ if (port2)
+ buf[1] |= cOutputPort2Inactive;
+ else
+ buf[1] &= ~cOutputPort2Inactive;
+ }
+
+ if (UNSET != qss) {
+ if (qss)
+ buf[1] |= cQSS;
+ else
+ buf[1] &= ~cQSS;
+ }
+
+ if (adjust >= 0x00 && adjust < 0x20)
+ buf[2] |= adjust;
+ return 0;
+}
+
+static int tda9887_set_config(struct tda9887 *t, char *buf)
+{
+ if (t->config & TDA9887_PORT1_ACTIVE)
+ buf[1] &= ~cOutputPort1Inactive;
+ if (t->config & TDA9887_PORT1_INACTIVE)
+ buf[1] |= cOutputPort1Inactive;
+ if (t->config & TDA9887_PORT2_ACTIVE)
+ buf[1] &= ~cOutputPort2Inactive;
+ if (t->config & TDA9887_PORT2_INACTIVE)
+ buf[1] |= cOutputPort2Inactive;
+
+ if (t->config & TDA9887_QSS)
+ buf[1] |= cQSS;
+ if (t->config & TDA9887_INTERCARRIER)
+ buf[1] &= ~cQSS;
+
+ if (t->config & TDA9887_AUTOMUTE)
+ buf[1] |= cAutoMuteFmActive;
+ if (t->config & TDA9887_DEEMPHASIS_MASK) {
+ buf[2] &= ~0x60;
+ switch (t->config & TDA9887_DEEMPHASIS_MASK) {
+ case TDA9887_DEEMPHASIS_NONE:
+ buf[2] |= cDeemphasisOFF;
+ break;
+ case TDA9887_DEEMPHASIS_50:
+ buf[2] |= cDeemphasisON | cDeemphasis50;
+ break;
+ case TDA9887_DEEMPHASIS_75:
+ buf[2] |= cDeemphasisON | cDeemphasis75;
+ break;
+ }
+ }
+ return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+
+static int tda9887_set_pinnacle(struct tda9887 *t, char *buf)
+{
+ unsigned int bCarrierMode = UNSET;
+
+ if (t->std & V4L2_STD_625_50) {
+ if ((1 == t->pinnacle_id) || (7 == t->pinnacle_id)) {
+ bCarrierMode = cIntercarrier;
+ } else {
+ bCarrierMode = cQSS;
+ }
+ }
+ if (t->std & V4L2_STD_525_60) {
+ if ((5 == t->pinnacle_id) || (6 == t->pinnacle_id)) {
+ bCarrierMode = cIntercarrier;
+ } else {
+ bCarrierMode = cQSS;
+ }
+ }
+
+ if (bCarrierMode != UNSET) {
+ buf[1] &= ~0x04;
+ buf[1] |= bCarrierMode;
+ }
+ return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+
+static char pal[] = "-";
+module_param_string(pal, pal, 0644, sizeof(pal));
+static char secam[] = "-";
+module_param_string(secam, secam, 0644, sizeof(secam));
+
+static int tda9887_fixup_std(struct tda9887 *t)
+{
+ /* get more precise norm info from insmod option */
+ if ((t->std & V4L2_STD_PAL) == V4L2_STD_PAL) {
+ switch (pal[0]) {
+ case 'b':
+ case 'B':
+ case 'g':
+ case 'G':
+ dprintk(PREFIX "insmod fixup: PAL => PAL-BG\n");
+ t->std = V4L2_STD_PAL_BG;
+ break;
+ case 'i':
+ case 'I':
+ dprintk(PREFIX "insmod fixup: PAL => PAL-I\n");
+ t->std = V4L2_STD_PAL_I;
+ break;
+ case 'd':
+ case 'D':
+ case 'k':
+ case 'K':
+ dprintk(PREFIX "insmod fixup: PAL => PAL-DK\n");
+ t->std = V4L2_STD_PAL_DK;
+ break;
+ }
+ }
+ if ((t->std & V4L2_STD_SECAM) == V4L2_STD_SECAM) {
+ switch (secam[0]) {
+ case 'd':
+ case 'D':
+ case 'k':
+ case 'K':
+ dprintk(PREFIX "insmod fixup: SECAM => SECAM-DK\n");
+ t->std = V4L2_STD_SECAM_DK;
+ break;
+ case 'l':
+ case 'L':
+ dprintk(PREFIX "insmod fixup: SECAM => SECAM-L\n");
+ t->std = V4L2_STD_SECAM_L;
+ break;
+ }
+ }
+ return 0;
+}
+
+static int tda9887_status(struct tda9887 *t)
+{
+ unsigned char buf[1];
+ int rc;
+
+ memset(buf,0,sizeof(buf));
+ if (1 != (rc = i2c_master_recv(&t->client,buf,1)))
+ printk(PREFIX "i2c i/o error: rc == %d (should be 1)\n",rc);
+ dump_read_message(buf);
+ return 0;
+}
+
+static int tda9887_configure(struct tda9887 *t)
+{
+ unsigned char buf[4];
+ int rc;
+
+ memset(buf,0,sizeof(buf));
+ tda9887_set_tvnorm(t,buf);
+ buf[1] |= cOutputPort1Inactive;
+ buf[1] |= cOutputPort2Inactive;
+ if (UNSET != t->pinnacle_id) {
+ tda9887_set_pinnacle(t,buf);
+ }
+ tda9887_set_config(t,buf);
+ tda9887_set_insmod(t,buf);
+
+#if 0
+ /* This as-is breaks some cards, must be fixed in a
+ * card-specific way, probably using TDA9887_SET_CONFIG to
+ * turn on/off port2 */
+ if (t->std & V4L2_STD_SECAM_L) {
+ /* secam fixup (FIXME: move this to tvnorms array?) */
+ buf[1] &= ~cOutputPort2Inactive;
+ }
+#endif
+
+ dprintk(PREFIX "writing: b=0x%02x c=0x%02x e=0x%02x\n",
+ buf[1],buf[2],buf[3]);
+ if (debug > 1)
+ dump_write_message(buf);
+
+ if (4 != (rc = i2c_master_send(&t->client,buf,4)))
+ printk(PREFIX "i2c i/o error: rc == %d (should be 4)\n",rc);
+
+ if (debug > 2) {
+ msleep_interruptible(1000);
+ tda9887_status(t);
+ }
+ return 0;
+}
+
+/* ---------------------------------------------------------------------- */
+
+static int tda9887_attach(struct i2c_adapter *adap, int addr, int kind)
+{
+ struct tda9887 *t;
+
+ client_template.adapter = adap;
+ client_template.addr = addr;
+
+ printk(PREFIX "chip found @ 0x%x\n", addr<<1);
+
+ if (NULL == (t = kmalloc(sizeof(*t), GFP_KERNEL)))
+ return -ENOMEM;
+ memset(t,0,sizeof(*t));
+ t->client = client_template;
+ t->std = 0;
+ t->pinnacle_id = UNSET;
+ i2c_set_clientdata(&t->client, t);
+ i2c_attach_client(&t->client);
+
+ return 0;
+}
+
+static int tda9887_probe(struct i2c_adapter *adap)
+{
+#ifdef I2C_CLASS_TV_ANALOG
+ if (adap->class & I2C_CLASS_TV_ANALOG)
+ return i2c_probe(adap, &addr_data, tda9887_attach);
+#else
+ switch (adap->id) {
+ case I2C_ALGO_BIT | I2C_HW_B_BT848:
+ case I2C_ALGO_BIT | I2C_HW_B_RIVA:
+ case I2C_ALGO_SAA7134:
+ return i2c_probe(adap, &addr_data, tda9887_attach);
+ break;
+ }
+#endif
+ return 0;
+}
+
+static int tda9887_detach(struct i2c_client *client)
+{
+ struct tda9887 *t = i2c_get_clientdata(client);
+
+ i2c_detach_client(client);
+ kfree(t);
+ return 0;
+}
+
+#define SWITCH_V4L2 if (!t->using_v4l2 && debug) \
+ printk(PREFIX "switching to v4l2\n"); \
+ t->using_v4l2 = 1;
+#define CHECK_V4L2 if (t->using_v4l2) { if (debug) \
+ printk(PREFIX "ignore v4l1 call\n"); \
+ return 0; }
+
+static int
+tda9887_command(struct i2c_client *client, unsigned int cmd, void *arg)
+{
+ struct tda9887 *t = i2c_get_clientdata(client);
+
+ switch (cmd) {
+
+ /* --- configuration --- */
+ case AUDC_SET_RADIO:
+ t->radio = 1;
+ tda9887_configure(t);
+ break;
+
+ case AUDC_CONFIG_PINNACLE:
+ {
+ int *i = arg;
+
+ t->pinnacle_id = *i;
+ tda9887_configure(t);
+ break;
+ }
+ case TDA9887_SET_CONFIG:
+ {
+ int *i = arg;
+
+ t->config = *i;
+ tda9887_configure(t);
+ break;
+ }
+ /* --- v4l ioctls --- */
+ /* take care: bttv does userspace copying, we'll get a
+ kernel pointer here... */
+ case VIDIOCSCHAN:
+ {
+ static const v4l2_std_id map[] = {
+ [ VIDEO_MODE_PAL ] = V4L2_STD_PAL,
+ [ VIDEO_MODE_NTSC ] = V4L2_STD_NTSC_M,
+ [ VIDEO_MODE_SECAM ] = V4L2_STD_SECAM,
+ [ 4 /* bttv */ ] = V4L2_STD_PAL_M,
+ [ 5 /* bttv */ ] = V4L2_STD_PAL_N,
+ [ 6 /* bttv */ ] = V4L2_STD_NTSC_M_JP,
+ };
+ struct video_channel *vc = arg;
+
+ CHECK_V4L2;
+ t->radio = 0;
+ if (vc->norm < ARRAY_SIZE(map))
+ t->std = map[vc->norm];
+ tda9887_fixup_std(t);
+ tda9887_configure(t);
+ break;
+ }
+ case VIDIOC_S_STD:
+ {
+ v4l2_std_id *id = arg;
+
+ SWITCH_V4L2;
+ t->radio = 0;
+ t->std = *id;
+ tda9887_fixup_std(t);
+ tda9887_configure(t);
+ break;
+ }
+ case VIDIOC_S_FREQUENCY:
+ {
+ struct v4l2_frequency *f = arg;
+
+ SWITCH_V4L2;
+ if (V4L2_TUNER_ANALOG_TV == f->type) {
+ if (t->radio == 0)
+ return 0;
+ t->radio = 0;
+ }
+ if (V4L2_TUNER_RADIO == f->type) {
+ if (t->radio == 1)
+ return 0;
+ t->radio = 1;
+ }
+ tda9887_configure(t);
+ break;
+ }
+ case VIDIOC_G_TUNER:
+ {
+ static int AFC_BITS_2_kHz[] = {
+ -12500, -37500, -62500, -97500,
+ -112500, -137500, -162500, -187500,
+ 187500, 162500, 137500, 112500,
+ 97500 , 62500, 37500 , 12500
+ };
+ struct v4l2_tuner* tuner = arg;
+
+ if (t->radio) {
+ __u8 reg = 0;
+ tuner->afc=0;
+ if (1 == i2c_master_recv(&t->client,&reg,1))
+ tuner->afc = AFC_BITS_2_kHz[(reg>>1)&0x0f];
+ }
+ break;
+ }
+ default:
+ /* nothing */
+ break;
+ }
+ return 0;
+}
+
+static int tda9887_suspend(struct device * dev, u32 state, u32 level)
+{
+ dprintk("tda9887: suspend\n");
+ return 0;
+}
+
+static int tda9887_resume(struct device * dev, u32 level)
+{
+ struct i2c_client *c = container_of(dev, struct i2c_client, dev);
+ struct tda9887 *t = i2c_get_clientdata(c);
+
+ dprintk("tda9887: resume\n");
+ tda9887_configure(t);
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static struct i2c_driver driver = {
+ .owner = THIS_MODULE,
+ .name = "i2c tda9887 driver",
+ .id = -1, /* FIXME */
+ .flags = I2C_DF_NOTIFY,
+ .attach_adapter = tda9887_probe,
+ .detach_client = tda9887_detach,
+ .command = tda9887_command,
+ .driver = {
+ .suspend = tda9887_suspend,
+ .resume = tda9887_resume,
+ },
+};
+static struct i2c_client client_template =
+{
+ I2C_DEVNAME("tda9887"),
+ .flags = I2C_CLIENT_ALLOW_USE,
+ .driver = &driver,
+};
+
+static int __init tda9887_init_module(void)
+{
+ return i2c_add_driver(&driver);
+}
+
+static void __exit tda9887_cleanup_module(void)
+{
+ i2c_del_driver(&driver);
+}
+
+module_init(tda9887_init_module);
+module_exit(tda9887_cleanup_module);
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.