[media] af9035: read and store whole eeprom

Read eeprom content to chip state and read values there when needed.
Also debug dump eeprom content.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c
index c673726..61dac6a 100644 (file)
--- a/drivers/media/usb/dvb-usb-v2/af9035.c
+++ b/drivers/media/usb/dvb-usb-v2/af9035.c
@@ -496,7 +496,8 @@ static int af9035_identify_state(struct dvb_usb_device *d, const char **name)
 {
        struct state *state = d_to_priv(d);
        struct usb_interface *intf = d->intf;
-       int ret, ts_mode_invalid;
+       int ret, i, ts_mode_invalid;
+       unsigned int utmp, eeprom_addr;
        u8 tmp;
        u8 wbuf[1] = { 1 };
        u8 rbuf[4];
@@ -518,25 +519,48 @@ static int af9035_identify_state(struct dvb_usb_device *d, const char **name)
                 state->prechip_version, state->chip_version, state->chip_type);
 
        if (state->chip_type == 0x9135) {
-               if (state->chip_version == 0x02)
+               if (state->chip_version == 0x02) {
                        *name = AF9035_FIRMWARE_IT9135_V2;
-               else
+                       utmp = 0x00461d;
+               } else {
                        *name = AF9035_FIRMWARE_IT9135_V1;
-               state->eeprom_addr = EEPROM_BASE_IT9135;
+                       utmp = 0x00461b;
+               }
+
+               /* Check if eeprom exists */
+               ret = af9035_rd_reg(d, utmp, &tmp);
+               if (ret < 0)
+                       goto err;
+
+               if (tmp == 0x00) {
+                       dev_dbg(&intf->dev, "no eeprom\n");
+                       state->no_eeprom = true;
+                       goto check_firmware_status;
+               }
+
+               eeprom_addr = EEPROM_BASE_IT9135;
        } else if (state->chip_type == 0x9306) {
                *name = AF9035_FIRMWARE_IT9303;
-               state->eeprom_addr = EEPROM_BASE_IT9135;
+               state->no_eeprom = true;
+               goto check_firmware_status;
        } else {
                *name = AF9035_FIRMWARE_AF9035;
-               state->eeprom_addr = EEPROM_BASE_AF9035;
+               eeprom_addr = EEPROM_BASE_AF9035;
+       }
+
+       /* Read and store eeprom */
+       for (i = 0; i < 256; i += 32) {
+               ret = af9035_rd_regs(d, eeprom_addr + i, &state->eeprom[i], 32);
+               if (ret < 0)
+                       goto err;
        }
 
+       dev_dbg(&intf->dev, "eeprom dump:\n");
+       for (i = 0; i < 256; i += 16)
+               dev_dbg(&intf->dev, "%*ph\n", 16, &state->eeprom[i]);
 
        /* check for dual tuner mode */
-       ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_TS_MODE, &tmp);
-       if (ret < 0)
-               goto err;
-
+       tmp = state->eeprom[EEPROM_TS_MODE];
        ts_mode_invalid = 0;
        switch (tmp) {
        case 0:
@@ -560,7 +584,7 @@ static int af9035_identify_state(struct dvb_usb_device *d, const char **name)
        if (ts_mode_invalid)
                dev_info(&intf->dev, "ts mode=%d not supported, defaulting to single tuner mode!", tmp);
 
-
+check_firmware_status:
        ret = af9035_ctrl_msg(d, &req);
        if (ret < 0)
                goto err;
@@ -750,11 +774,7 @@ static int af9035_download_firmware(struct dvb_usb_device *d,
                        goto err;
 
                /* tell the slave I2C address */
-               ret = af9035_rd_reg(d,
-                               state->eeprom_addr + EEPROM_2ND_DEMOD_ADDR,
-                               &tmp);
-               if (ret < 0)
-                       goto err;
+               tmp = state->eeprom[EEPROM_2ND_DEMOD_ADDR];
 
                /* use default I2C address if eeprom has no address set */
                if (!tmp)
@@ -819,7 +839,7 @@ static int af9035_read_config(struct dvb_usb_device *d)
        struct state *state = d_to_priv(d);
        int ret, i;
        u8 tmp;
-       u16 tmp16, addr;
+       u16 tmp16;
 
        /* demod I2C "address" */
        state->af9033_i2c_addr[0] = 0x38;
@@ -837,20 +857,16 @@ static int af9035_read_config(struct dvb_usb_device *d)
                if (state->chip_version == 0x02) {
                        state->af9033_config[0].tuner = AF9033_TUNER_IT9135_60;
                        state->af9033_config[1].tuner = AF9033_TUNER_IT9135_60;
-                       tmp16 = 0x00461d; /* eeprom memory mapped location */
                } else {
                        state->af9033_config[0].tuner = AF9033_TUNER_IT9135_38;
                        state->af9033_config[1].tuner = AF9033_TUNER_IT9135_38;
-                       tmp16 = 0x00461b; /* eeprom memory mapped location */
                }
 
-               /* check if eeprom exists */
-               ret = af9035_rd_reg(d, tmp16, &tmp);
-               if (ret < 0)
-                       goto err;
+               if (state->no_eeprom) {
+                       /* Remote controller to NEC polling by default */
+                       state->ir_mode = 0x05;
+                       state->ir_type = 0x00;
 
-               if (tmp == 0x00) {
-                       dev_dbg(&intf->dev, "no eeprom\n");
                        goto skip_eeprom;
                }
        } else if (state->chip_type == 0x9306) {
@@ -861,29 +877,24 @@ static int af9035_read_config(struct dvb_usb_device *d)
                return 0;
        }
 
+       /* Remote controller */
+       state->ir_mode = state->eeprom[EEPROM_IR_MODE];
+       state->ir_type = state->eeprom[EEPROM_IR_TYPE];
 
        if (state->dual_mode) {
                /* read 2nd demodulator I2C address */
-               ret = af9035_rd_reg(d,
-                               state->eeprom_addr + EEPROM_2ND_DEMOD_ADDR,
-                               &tmp);
-               if (ret < 0)
-                       goto err;
-
+               tmp = state->eeprom[EEPROM_2ND_DEMOD_ADDR];
                if (tmp)
                        state->af9033_i2c_addr[1] = tmp;
 
                dev_dbg(&intf->dev, "2nd demod I2C addr=%02x\n", tmp);
        }
 
-       addr = state->eeprom_addr;
-
        for (i = 0; i < state->dual_mode + 1; i++) {
-               /* tuner */
-               ret = af9035_rd_reg(d, addr + EEPROM_1_TUNER_ID, &tmp);
-               if (ret < 0)
-                       goto err;
+               unsigned int eeprom_offset = 0;
 
+               /* tuner */
+               tmp = state->eeprom[EEPROM_1_TUNER_ID + eeprom_offset];
                dev_dbg(&intf->dev, "[%d]tuner=%02x\n", i, tmp);
 
                /* tuner sanity check */
@@ -956,21 +967,13 @@ static int af9035_read_config(struct dvb_usb_device *d)
                }
 
                /* tuner IF frequency */
-               ret = af9035_rd_reg(d, addr + EEPROM_1_IF_L, &tmp);
-               if (ret < 0)
-                       goto err;
-
-               tmp16 = tmp;
-
-               ret = af9035_rd_reg(d, addr + EEPROM_1_IF_H, &tmp);
-               if (ret < 0)
-                       goto err;
-
+               tmp = state->eeprom[EEPROM_1_IF_L + eeprom_offset];
+               tmp16 = tmp << 0;
+               tmp = state->eeprom[EEPROM_1_IF_H + eeprom_offset];
                tmp16 |= tmp << 8;
-
                dev_dbg(&intf->dev, "[%d]IF=%d\n", i, tmp16);
 
-               addr += 0x10; /* shift for the 2nd tuner params */
+               eeprom_offset += 0x10; /* shift for the 2nd tuner params */
        }
 
 skip_eeprom:
@@ -1872,25 +1875,13 @@ static int af9035_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
 {
        struct state *state = d_to_priv(d);
        struct usb_interface *intf = d->intf;
-       int ret;
-       u8 tmp;
 
-       ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_IR_MODE, &tmp);
-       if (ret < 0)
-               goto err;
-
-       dev_dbg(&intf->dev, "ir_mode=%02x\n", tmp);
+       dev_dbg(&intf->dev, "ir_mode=%02x ir_type=%02x\n",
+               state->ir_mode, state->ir_type);
 
        /* don't activate rc if in HID mode or if not available */
-       if (tmp == 5) {
-               ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_IR_TYPE,
-                               &tmp);
-               if (ret < 0)
-                       goto err;
-
-               dev_dbg(&intf->dev, "ir_type=%02x\n", tmp);
-
-               switch (tmp) {
+       if (state->ir_mode == 0x05) {
+               switch (state->ir_type) {
                case 0: /* NEC */
                default:
                        rc->allowed_protos = RC_BIT_NEC | RC_BIT_NECX |
@@ -1910,11 +1901,6 @@ static int af9035_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
        }
 
        return 0;
-
-err:
-       dev_dbg(&intf->dev, "failed=%d\n", ret);
-
-       return ret;
 }
 #else
        #define af9035_get_rc_config NULL

diff --git a/drivers/media/usb/dvb-usb-v2/af9035.h b/drivers/media/usb/dvb-usb-v2/af9035.h
index 1f83c92..89a08a4 100644 (file)
--- a/drivers/media/usb/dvb-usb-v2/af9035.h
+++ b/drivers/media/usb/dvb-usb-v2/af9035.h
@@ -61,9 +61,12 @@ struct state {
        u8 prechip_version;
        u8 chip_version;
        u16 chip_type;
+       u8 eeprom[256];
+       bool no_eeprom;
+       u8 ir_mode;
+       u8 ir_type;
        u8 dual_mode:1;
        u8 no_read:1;
-       u16 eeprom_addr;
        u8 af9033_i2c_addr[2];
        struct af9033_config af9033_config[2];
        struct af9033_ops ops;