V4L/DVB (5311): Tda1004x driver updates

There are the following changes:
- separate configuration of IF and GPIOs.
- set GPIOs before firmware load. This helps to avoid I2C address
  collisions.
- if desired invert GPIOs at sleep (automatic return to analog mode of card).
- added 3 tuner configuration bytes to config stuct.
- added i2c gate address to config struct.
- moved _state struct declaration to header file to make it accessible
  on board layer.
- added "conf_probed" to the state struct to allow i.e. probing for correct
  tuner version.
- changed firmware load mechanism to always:
  + check if already loaded
  + try to boot from eeprom
  + try downlad from host
- corrected name of tda10046 firmware image (backward compatible).

Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

2 files changed, 83 insertions, 52 deletions

diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c
index f4a9cf9d26d..c47501ae8b0 100644
--- a/drivers/media/dvb/frontends/tda1004x.c
+++ b/drivers/media/dvb/frontends/tda1004x.c
@@ -40,20 +40,6 @@
 #include "dvb_frontend.h"
 #include "tda1004x.h"
 
-enum tda1004x_demod {
-	TDA1004X_DEMOD_TDA10045,
-	TDA1004X_DEMOD_TDA10046,
-};
-
-struct tda1004x_state {
-	struct i2c_adapter* i2c;
-	const struct tda1004x_config* config;
-	struct dvb_frontend frontend;
-
-	/* private demod data */
-	enum tda1004x_demod demod_type;
-};
-
 static int debug;
 #define dprintk(args...) \
 	do { \
@@ -507,8 +493,13 @@ static int tda10046_fwupload(struct dvb_frontend* fe)
 		tda1004x_write_byteI(state, TDA1004X_CONFC4, 0x80);
 	}
 	tda1004x_write_mask(state, TDA10046H_CONF_TRISTATE1, 1, 0);
+	/* set GPIO 1 and 3 */
+	if (state->config->gpio_config != TDA10046_GPTRI) {
+		tda1004x_write_byteI(state, TDA10046H_CONF_TRISTATE2, 0x33);
+		tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0x0f, state->config->gpio_config &0x0f);
+	}
 	/* let the clocks recover from sleep */
-	msleep(5);
+	msleep(10);
 
 	/* The PLLs need to be reprogrammed after sleep */
 	tda10046_init_plls(fe);
@@ -517,25 +508,29 @@ static int tda10046_fwupload(struct dvb_frontend* fe)
 	if (tda1004x_check_upload_ok(state) == 0)
 		return 0;
 
-	if (state->config->request_firmware != NULL) {
-		/* request the firmware, this will block until someone uploads it */
-		printk(KERN_INFO "tda1004x: waiting for firmware upload...\n");
-		ret = state->config->request_firmware(fe, &fw, TDA10046_DEFAULT_FIRMWARE);
+	printk(KERN_INFO "tda1004x: trying to boot from eeprom\n");
+	tda1004x_write_mask(state, TDA1004X_CONFC4, 4, 4);
+	msleep(300);
+	/* don't re-upload unless necessary */
+	if (tda1004x_check_upload_ok(state) == 0)
+		return 0;
+
+	/* request the firmware, this will block until someone uploads it */
+	printk(KERN_INFO "tda1004x: waiting for firmware upload...\n");
+	ret = state->config->request_firmware(fe, &fw, TDA10046_DEFAULT_FIRMWARE);
+	if (ret) {
+		/* remain compatible to old bug: try to load with tda10045 image name */
+		ret = state->config->request_firmware(fe, &fw, TDA10045_DEFAULT_FIRMWARE);
 		if (ret) {
 			printk(KERN_ERR "tda1004x: no firmware upload (timeout or file not found?)\n");
 			return ret;
-		}
-		tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 8); // going to boot from HOST
-		ret = tda1004x_do_upload(state, fw->data, fw->size, TDA10046H_CODE_CPT, TDA10046H_CODE_IN);
-		release_firmware(fw);
-		if (ret)
-			return ret;
-	} else {
-		/* boot from firmware eeprom */
-		printk(KERN_INFO "tda1004x: booting from eeprom\n");
-		tda1004x_write_mask(state, TDA1004X_CONFC4, 4, 4);
-		msleep(300);
+		} else
+			printk(KERN_INFO "tda1004x: please rename the firmware file to %s\n",
+					  TDA10046_DEFAULT_FIRMWARE);
 	}
+	tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 8); // going to boot from HOST
+	ret = tda1004x_do_upload(state, fw->data, fw->size, TDA10046H_CODE_CPT, TDA10046H_CODE_IN);
+	release_firmware(fw);
 	return tda1004x_check_upload_ok(state);
 }
 
@@ -638,37 +633,25 @@ static int tda10046_init(struct dvb_frontend* fe)
 	switch (state->config->agc_config) {
 	case TDA10046_AGC_DEFAULT:
 		tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x00); // AGC setup
-		tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x60); // set AGC polarities
+		tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0xf0, 0x60);  // set AGC polarities
 		break;
 	case TDA10046_AGC_IFO_AUTO_NEG:
 		tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x0a); // AGC setup
-		tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x60); // set AGC polarities
+		tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0xf0, 0x60);  // set AGC polarities
 		break;
 	case TDA10046_AGC_IFO_AUTO_POS:
 		tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x0a); // AGC setup
-		tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x00); // set AGC polarities
+		tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0xf0, 0x00);  // set AGC polarities
 		break;
-	case TDA10046_AGC_TDA827X_GP11:
+	case TDA10046_AGC_TDA827X:
 		tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x02);   // AGC setup
 		tda1004x_write_byteI(state, TDA10046H_AGC_THR, 0x70);    // AGC Threshold
 		tda1004x_write_byteI(state, TDA10046H_AGC_RENORM, 0x08); // Gain Renormalize
-		tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x6a); // set AGC polarities
-		break;
-	case TDA10046_AGC_TDA827X_GP00:
-		tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x02);   // AGC setup
-		tda1004x_write_byteI(state, TDA10046H_AGC_THR, 0x70);    // AGC Threshold
-		tda1004x_write_byteI(state, TDA10046H_AGC_RENORM, 0x08); // Gain Renormalize
-		tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x60); // set AGC polarities
-		break;
-	case TDA10046_AGC_TDA827X_GP01:
-		tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x02);   // AGC setup
-		tda1004x_write_byteI(state, TDA10046H_AGC_THR, 0x70);    // AGC Threshold
-		tda1004x_write_byteI(state, TDA10046H_AGC_RENORM, 0x08); // Gain Renormalize
-		tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x62); // set AGC polarities
+		tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0xf0, 0x60);  // set AGC polarities
 		break;
 	}
 	tda1004x_write_byteI(state, TDA1004X_CONFADC2, 0x38);
-	tda1004x_write_byteI(state, TDA10046H_CONF_TRISTATE1, 0x61); // Turn both AGC outputs on
+	tda1004x_write_byteI(state, TDA10046H_CONF_TRISTATE1, 0x79); // Turn IF AGC output on
 	tda1004x_write_byteI(state, TDA10046H_AGC_TUN_MIN, 0);	  // }
 	tda1004x_write_byteI(state, TDA10046H_AGC_TUN_MAX, 0xff); // } AGC min/max values
 	tda1004x_write_byteI(state, TDA10046H_AGC_IF_MIN, 0);	  // }
@@ -1165,6 +1148,7 @@ static int tda1004x_read_ber(struct dvb_frontend* fe, u32* ber)
 static int tda1004x_sleep(struct dvb_frontend* fe)
 {
 	struct tda1004x_state* state = fe->demodulator_priv;
+	int gpio_conf;
 
 	switch (state->demod_type) {
 	case TDA1004X_DEMOD_TDA10045:
@@ -1174,6 +1158,12 @@ static int tda1004x_sleep(struct dvb_frontend* fe)
 	case TDA1004X_DEMOD_TDA10046:
 		/* set outputs to tristate */
 		tda1004x_write_byteI(state, TDA10046H_CONF_TRISTATE1, 0xff);
+		/* invert GPIO 1 and 3 if desired*/
+		gpio_conf = state->config->gpio_config;
+		if (gpio_conf >= TDA10046_GP00_I)
+			tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0x0f,
+							(gpio_conf & 0x0f) ^ 0x0a);
+
 		tda1004x_write_mask(state, TDA1004X_CONFC4, 1, 1);
 		break;
 	}
diff --git a/drivers/media/dvb/frontends/tda1004x.h b/drivers/media/dvb/frontends/tda1004x.h
index ec502d71b83..886db3f75d5 100644
--- a/drivers/media/dvb/frontends/tda1004x.h
+++ b/drivers/media/dvb/frontends/tda1004x.h
@@ -35,9 +35,23 @@ enum tda10046_agc {
 	TDA10046_AGC_DEFAULT,		/* original configuration */
 	TDA10046_AGC_IFO_AUTO_NEG,	/* IF AGC only, automatic, negtive */
 	TDA10046_AGC_IFO_AUTO_POS,	/* IF AGC only, automatic, positive */
-	TDA10046_AGC_TDA827X_GP11,	/* IF AGC only, special setup for tda827x */
-	TDA10046_AGC_TDA827X_GP00,	/* same as above, but GPIOs 0 */
-	TDA10046_AGC_TDA827X_GP01,	/* same as above, but GPIO3=0 GPIO1=1*/
+	TDA10046_AGC_TDA827X,		/* IF AGC only, special setup for tda827x */
+};
+
+/* Many (hybrid) boards use GPIO 1 and 3
+	GPIO1	analog - dvb switch
+	GPIO3	firmware eeprom address switch
+*/
+enum tda10046_gpio {
+	TDA10046_GPTRI  = 0x00,		/* All GPIOs tristate */
+	TDA10046_GP00   = 0x40,		/* GPIO3=0, GPIO1=0 */
+	TDA10046_GP01   = 0x42,		/* GPIO3=0, GPIO1=1 */
+	TDA10046_GP10   = 0x48,		/* GPIO3=1, GPIO1=0 */
+	TDA10046_GP11   = 0x4a,		/* GPIO3=1, GPIO1=1 */
+	TDA10046_GP00_I = 0x80,		/* GPIO3=0, GPIO1=0, invert in sleep mode*/
+	TDA10046_GP01_I = 0x82,		/* GPIO3=0, GPIO1=1, invert in sleep mode */
+	TDA10046_GP10_I = 0x88,		/* GPIO3=1, GPIO1=0, invert in sleep mode */
+	TDA10046_GP11_I = 0x8a,		/* GPIO3=1, GPIO1=1, invert in sleep mode */
 };
 
 enum tda10046_if {
@@ -67,11 +81,38 @@ struct tda1004x_config
 	/* AGC configuration */
 	enum tda10046_agc agc_config;
 
+	/* setting of GPIO1 and 3 */
+	enum tda10046_gpio gpio_config;
+
+	/* slave address and configuration of the tuner */
+	u8 tuner_address;
+	u8 tuner_config;
+	u8 antenna_switch;
+
+	/* if the board uses another I2c Bridge (tda8290), its address */
+	u8 i2c_gate;
+
 	/* request firmware for device */
-	/* set this to NULL if the card has a firmware EEPROM */
 	int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
 };
 
+enum tda1004x_demod {
+	TDA1004X_DEMOD_TDA10045,
+	TDA1004X_DEMOD_TDA10046,
+};
+
+struct tda1004x_state {
+	struct i2c_adapter* i2c;
+	const struct tda1004x_config* config;
+	struct dvb_frontend frontend;
+
+	/* this allows to store probed board information */
+	int	conf_probed;
+
+	/* private demod data */
+	enum tda1004x_demod demod_type;
+};
+
 #if defined(CONFIG_DVB_TDA1004X) || (defined(CONFIG_DVB_TDA1004X_MODULE) && defined(MODULE))
 extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
 					    struct i2c_adapter* i2c);