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path: root/drivers/media/video/tda8290.c
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Diffstat (limited to 'drivers/media/video/tda8290.c')
-rw-r--r--drivers/media/video/tda8290.c319
1 files changed, 313 insertions, 6 deletions
diff --git a/drivers/media/video/tda8290.c b/drivers/media/video/tda8290.c
index 5d30cbcd736..a38ed9db640 100644
--- a/drivers/media/video/tda8290.c
+++ b/drivers/media/video/tda8290.c
@@ -25,8 +25,9 @@
#include <linux/videodev.h>
#include "tda8290.h"
#include "tda827x.h"
+#include "tda18271.h"
-static int tuner_debug = 0;
+static int tuner_debug;
module_param_named(debug, tuner_debug, int, 0644);
MODULE_PARM_DESC(debug, "enable verbose debug messages");
@@ -65,6 +66,34 @@ static void tda8290_i2c_bridge(struct tuner *t, int close)
}
}
+static void tda8295_i2c_bridge(struct tuner *t, int close)
+{
+ struct tda8290_priv *priv = t->priv;
+
+ unsigned char enable[2] = { 0x45, 0xc1 };
+ unsigned char disable[2] = { 0x46, 0x00 };
+ unsigned char buf[3] = { 0x45, 0x01, 0x00 };
+ unsigned char *msg;
+ if (close) {
+ msg = enable;
+ tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
+ /* let the bridge stabilize */
+ msleep(20);
+ } else {
+ msg = disable;
+ tuner_i2c_xfer_send(&priv->i2c_props, msg, 1);
+ tuner_i2c_xfer_recv(&priv->i2c_props, &msg[1], 1);
+
+ buf[2] = msg[1];
+ buf[2] &= ~0x04;
+ tuner_i2c_xfer_send(&priv->i2c_props, buf, 3);
+ msleep(5);
+
+ msg[1] |= 0x04;
+ tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
+ }
+}
+
/*---------------------------------------------------------------------*/
static void set_audio(struct tuner *t)
@@ -233,6 +262,153 @@ static void tda8290_set_freq(struct tuner *t, unsigned int freq)
/*---------------------------------------------------------------------*/
+static void tda8295_power(struct tuner *t, int enable)
+{
+ struct tda8290_priv *priv = t->priv;
+ unsigned char buf[] = { 0x30, 0x00 }; /* clb_stdbt */
+
+ tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
+ tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
+
+ if (enable)
+ buf[1] = 0x01;
+ else
+ buf[1] = 0x03;
+
+ tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
+}
+
+static void tda8295_set_easy_mode(struct tuner *t, int enable)
+{
+ struct tda8290_priv *priv = t->priv;
+ unsigned char buf[] = { 0x01, 0x00 };
+
+ tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
+ tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
+
+ if (enable)
+ buf[1] = 0x01; /* rising edge sets regs 0x02 - 0x23 */
+ else
+ buf[1] = 0x00; /* reset active bit */
+
+ tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
+}
+
+static void tda8295_set_video_std(struct tuner *t)
+{
+ struct tda8290_priv *priv = t->priv;
+ unsigned char buf[] = { 0x00, priv->tda8290_easy_mode };
+
+ tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
+
+ tda8295_set_easy_mode(t, 1);
+ msleep(20);
+ tda8295_set_easy_mode(t, 0);
+}
+
+/*---------------------------------------------------------------------*/
+
+static void tda8295_agc1_out(struct tuner *t, int enable)
+{
+ struct tda8290_priv *priv = t->priv;
+ unsigned char buf[] = { 0x02, 0x00 }; /* DIV_FUNC */
+
+ tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
+ tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
+
+ if (enable)
+ buf[1] &= ~0x40;
+ else
+ buf[1] |= 0x40;
+
+ tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
+}
+
+static void tda8295_agc2_out(struct tuner *t, int enable)
+{
+ struct tda8290_priv *priv = t->priv;
+ unsigned char set_gpio_cf[] = { 0x44, 0x00 };
+ unsigned char set_gpio_val[] = { 0x46, 0x00 };
+
+ tuner_i2c_xfer_send(&priv->i2c_props, &set_gpio_cf[0], 1);
+ tuner_i2c_xfer_recv(&priv->i2c_props, &set_gpio_cf[1], 1);
+ tuner_i2c_xfer_send(&priv->i2c_props, &set_gpio_val[0], 1);
+ tuner_i2c_xfer_recv(&priv->i2c_props, &set_gpio_val[1], 1);
+
+ set_gpio_cf[1] &= 0xf0; /* clear GPIO_0 bits 3-0 */
+
+ if (enable) {
+ set_gpio_cf[1] |= 0x01; /* config GPIO_0 as Open Drain Out */
+ set_gpio_val[1] &= 0xfe; /* set GPIO_0 pin low */
+ }
+ tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_cf, 2);
+ tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_val, 2);
+}
+
+static int tda8295_has_signal(struct tuner *t)
+{
+ struct tda8290_priv *priv = t->priv;
+
+ unsigned char hvpll_stat = 0x26;
+ unsigned char ret;
+
+ tuner_i2c_xfer_send(&priv->i2c_props, &hvpll_stat, 1);
+ tuner_i2c_xfer_recv(&priv->i2c_props, &ret, 1);
+ return (ret & 0x01) ? 65535 : 0;
+}
+
+/*---------------------------------------------------------------------*/
+
+static void tda8295_set_freq(struct tuner *t, unsigned int freq)
+{
+ struct tda8290_priv *priv = t->priv;
+ u16 ifc;
+
+ unsigned char blanking_mode[] = { 0x1d, 0x00 };
+
+ struct analog_parameters params = {
+ .frequency = freq,
+ .mode = t->mode,
+ .audmode = t->audmode,
+ .std = t->std
+ };
+
+ set_audio(t);
+
+ ifc = priv->cfg.sgIF; /* FIXME */
+
+ tuner_dbg("%s: ifc = %u, freq = %d\n", __FUNCTION__, ifc, freq);
+
+ tda8295_power(t, 1);
+ tda8295_agc1_out(t, 1);
+
+ tuner_i2c_xfer_send(&priv->i2c_props, &blanking_mode[0], 1);
+ tuner_i2c_xfer_recv(&priv->i2c_props, &blanking_mode[1], 1);
+
+ tda8295_set_video_std(t);
+
+ blanking_mode[1] = 0x03;
+ tuner_i2c_xfer_send(&priv->i2c_props, blanking_mode, 2);
+ msleep(20);
+
+ tda8295_i2c_bridge(t, 1);
+
+ if (t->fe.ops.tuner_ops.set_analog_params)
+ t->fe.ops.tuner_ops.set_analog_params(&t->fe, &params);
+
+ if (priv->cfg.agcf)
+ priv->cfg.agcf(&t->fe);
+
+ if (tda8295_has_signal(t))
+ tuner_dbg("tda8295 is locked\n");
+ else
+ tuner_dbg("tda8295 not locked, no signal?\n");
+
+ tda8295_i2c_bridge(t, 0);
+}
+
+/*---------------------------------------------------------------------*/
+
static int tda8290_has_signal(struct tuner *t)
{
struct tda8290_priv *priv = t->priv;
@@ -264,6 +440,13 @@ static void tda8290_standby(struct tuner *t)
tuner_i2c_xfer_send(&priv->i2c_props, tda8290_standby, 2);
}
+static void tda8295_standby(struct tuner *t)
+{
+ tda8295_agc1_out(t, 0); /* Put AGC in tri-state */
+
+ tda8295_power(t, 0);
+}
+
static void tda8290_init_if(struct tuner *t)
{
struct tda8290_priv *priv = t->priv;
@@ -279,6 +462,35 @@ static void tda8290_init_if(struct tuner *t)
tuner_i2c_xfer_send(&priv->i2c_props, set_VS, 2);
}
+static void tda8295_init_if(struct tuner *t)
+{
+ struct tda8290_priv *priv = t->priv;
+
+ static unsigned char set_adc_ctl[] = { 0x33, 0x14 };
+ static unsigned char set_adc_ctl2[] = { 0x34, 0x00 };
+ static unsigned char set_pll_reg6[] = { 0x3e, 0x63 };
+ static unsigned char set_pll_reg0[] = { 0x38, 0x23 };
+ static unsigned char set_pll_reg7[] = { 0x3f, 0x01 };
+ static unsigned char set_pll_reg10[] = { 0x42, 0x61 };
+ static unsigned char set_gpio_reg0[] = { 0x44, 0x0b };
+
+ tda8295_power(t, 1);
+
+ tda8295_set_easy_mode(t, 0);
+ tda8295_set_video_std(t);
+
+ tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl, 2);
+ tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl2, 2);
+ tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg6, 2);
+ tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg0, 2);
+ tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg7, 2);
+ tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg10, 2);
+ tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_reg0, 2);
+
+ tda8295_agc1_out(t, 0);
+ tda8295_agc2_out(t, 0);
+}
+
static void tda8290_init_tuner(struct tuner *t)
{
struct tda8290_priv *priv = t->priv;
@@ -298,7 +510,7 @@ static void tda8290_init_tuner(struct tuner *t)
/*---------------------------------------------------------------------*/
-static void tda8290_release(struct tuner *t)
+static void tda829x_release(struct tuner *t)
{
if (t->fe.ops.tuner_ops.release)
t->fe.ops.tuner_ops.release(&t->fe);
@@ -312,7 +524,15 @@ static struct tuner_operations tda8290_tuner_ops = {
.set_radio_freq = tda8290_set_freq,
.has_signal = tda8290_has_signal,
.standby = tda8290_standby,
- .release = tda8290_release,
+ .release = tda829x_release,
+};
+
+static struct tuner_operations tda8295_tuner_ops = {
+ .set_tv_freq = tda8295_set_freq,
+ .set_radio_freq = tda8295_set_freq,
+ .has_signal = tda8295_has_signal,
+ .standby = tda8295_standby,
+ .release = tda829x_release,
};
int tda8290_attach(struct tuner *t)
@@ -403,6 +623,95 @@ int tda8290_attach(struct tuner *t)
tda8290_init_if(t);
return 0;
}
+EXPORT_SYMBOL_GPL(tda8290_attach);
+
+int tda8295_attach(struct tuner *t)
+{
+ struct tda8290_priv *priv = NULL;
+ u8 data;
+ int i, ret, tuners_found;
+ u32 tuner_addrs;
+ struct i2c_msg msg = { .flags = I2C_M_RD, .buf = &data, .len = 1 };
+
+ priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL);
+ if (priv == NULL)
+ return -ENOMEM;
+ t->priv = priv;
+
+ priv->i2c_props.addr = t->i2c.addr;
+ priv->i2c_props.adap = t->i2c.adapter;
+
+ tda8295_i2c_bridge(t, 1);
+ /* probe for tuner chip */
+ tuners_found = 0;
+ tuner_addrs = 0;
+ for (i = 0x60; i <= 0x63; i++) {
+ msg.addr = i;
+ ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
+ if (ret == 1) {
+ tuners_found++;
+ tuner_addrs = (tuner_addrs << 8) + i;
+ }
+ }
+ /* if there is more than one tuner, we expect the right one is
+ behind the bridge and we choose the highest address that doesn't
+ give a response now
+ */
+ tda8295_i2c_bridge(t, 0);
+ if (tuners_found > 1)
+ for (i = 0; i < tuners_found; i++) {
+ msg.addr = tuner_addrs & 0xff;
+ ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
+ if (ret == 1)
+ tuner_addrs = tuner_addrs >> 8;
+ else
+ break;
+ }
+ if (tuner_addrs == 0) {
+ tuner_addrs = 0x60;
+ tuner_info("could not clearly identify tuner address, "
+ "defaulting to %x\n", tuner_addrs);
+ } else {
+ tuner_addrs = tuner_addrs & 0xff;
+ tuner_info("setting tuner address to %x\n", tuner_addrs);
+ }
+ priv->tda827x_addr = tuner_addrs;
+ msg.addr = tuner_addrs;
+
+ tda8295_i2c_bridge(t, 1);
+ ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
+ tda8295_i2c_bridge(t, 0);
+ if (ret != 1)
+ tuner_warn("TDA827x access failed!\n");
+ if ((data & 0x3c) == 0) {
+ strlcpy(t->i2c.name, "tda8295+18271", sizeof(t->i2c.name));
+ tda18271_attach(&t->fe, priv->tda827x_addr,
+ priv->i2c_props.adap);
+ priv->tda827x_ver = 4;
+ } else {
+ strlcpy(t->i2c.name, "tda8295+75a", sizeof(t->i2c.name));
+ tda827x_attach(&t->fe, priv->tda827x_addr,
+ priv->i2c_props.adap, &priv->cfg);
+
+ /* FIXME: tda827x module doesn't probe the tuner until
+ * tda827x_initial_sleep is called
+ */
+ if (t->fe.ops.tuner_ops.sleep)
+ t->fe.ops.tuner_ops.sleep(&t->fe);
+ priv->tda827x_ver = 2;
+ }
+ priv->tda827x_ver |= 1; /* signifies 8295 vs 8290 */
+ tuner_info("type set to %s\n", t->i2c.name);
+
+ memcpy(&t->ops, &tda8295_tuner_ops, sizeof(struct tuner_operations));
+
+ priv->cfg.tda827x_lpsel = 0;
+ t->mode = V4L2_TUNER_ANALOG_TV;
+
+ tda8295_init_if(t);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(tda8295_attach);
int tda8290_probe(struct tuner *t)
{
@@ -434,12 +743,10 @@ int tda8290_probe(struct tuner *t)
tuner_i2c_xfer_send(&i2c_props, restore_9886, 3);
return -1;
}
-
EXPORT_SYMBOL_GPL(tda8290_probe);
-EXPORT_SYMBOL_GPL(tda8290_attach);
MODULE_DESCRIPTION("Philips TDA8290 + TDA8275 / TDA8275a tuner driver");
-MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann");
+MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann, Michael Krufky");
MODULE_LICENSE("GPL");
/*
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-21 11:14:28 +0000