From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:51323 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752786AbcKLKey (ORCPT ); Sat, 12 Nov 2016 05:34:54 -0500 From: Antti Palosaari To: linux-media@vger.kernel.org Cc: Antti Palosaari Subject: [PATCH 1/9] af9035: read and store whole eeprom Date: Sat, 12 Nov 2016 12:33:53 +0200 Message-Id: <1478946841-2807-1-git-send-email-crope@iki.fi> Sender: linux-media-owner@vger.kernel.org List-ID: Read eeprom content to chip state and read values there when needed. Also debug dump eeprom content. Signed-off-by: Antti Palosaari --- drivers/media/usb/dvb-usb-v2/af9035.c | 126 +++++++++++++++------------------- drivers/media/usb/dvb-usb-v2/af9035.h | 5 +- 2 files changed, 60 insertions(+), 71 deletions(-) diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c index c673726..61dac6a 100644 --- 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 --- 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; -- http://palosaari.fi/