diff options
Diffstat (limited to 'drivers/media/dvb-frontends/si2165.c')
| -rw-r--r-- | drivers/media/dvb-frontends/si2165.c | 63 |
1 files changed, 43 insertions, 20 deletions
diff --git a/drivers/media/dvb-frontends/si2165.c b/drivers/media/dvb-frontends/si2165.c index 3a2d6c5aded6..98ddb49ad52b 100644 --- a/drivers/media/dvb-frontends/si2165.c +++ b/drivers/media/dvb-frontends/si2165.c @@ -1,5 +1,5 @@ /* - Driver for Silicon Labs SI2165 DVB-C/-T Demodulator + Driver for Silicon Labs Si2161 DVB-T and Si2165 DVB-C/-T Demodulator Copyright (C) 2013-2014 Matthias Schwarzott <zzam@gentoo.org> @@ -44,9 +44,7 @@ struct si2165_state { struct si2165_config config; - /* chip revision */ - u8 revcode; - /* chip type */ + u8 chip_revcode; u8 chip_type; /* calculated by xtal and div settings */ @@ -312,7 +310,7 @@ static u32 si2165_get_fe_clk(struct si2165_state *state) return state->adc_clk; } -static bool si2165_wait_init_done(struct si2165_state *state) +static int si2165_wait_init_done(struct si2165_state *state) { int ret = -EINVAL; u8 val = 0; @@ -407,7 +405,7 @@ static int si2165_upload_firmware(struct si2165_state *state) int ret; const struct firmware *fw = NULL; - u8 *fw_file = SI2165_FIRMWARE; + u8 *fw_file; const u8 *data; u32 len; u32 offset; @@ -415,10 +413,20 @@ static int si2165_upload_firmware(struct si2165_state *state) u8 block_count; u16 crc_expected; + switch (state->chip_revcode) { + case 0x03: /* revision D */ + fw_file = SI2165_FIRMWARE_REV_D; + break; + default: + dev_info(&state->i2c->dev, "%s: no firmware file for revision=%d\n", + KBUILD_MODNAME, state->chip_revcode); + return 0; + } + /* request the firmware, this will block and timeout */ ret = request_firmware(&fw, fw_file, state->i2c->dev.parent); if (ret) { - dev_warn(&state->i2c->dev, "%s: firmare file '%s' not found\n", + dev_warn(&state->i2c->dev, "%s: firmware file '%s' not found\n", KBUILD_MODNAME, fw_file); goto error; } @@ -908,7 +916,7 @@ static void si2165_release(struct dvb_frontend *fe) static struct dvb_frontend_ops si2165_ops = { .info = { - .name = "Silicon Labs Si2165", + .name = "Silicon Labs ", .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | @@ -948,6 +956,8 @@ struct dvb_frontend *si2165_attach(const struct si2165_config *config, int n; int io_ret; u8 val; + char rev_char; + const char *chip_name; if (config == NULL || i2c == NULL) goto error; @@ -984,7 +994,7 @@ struct dvb_frontend *si2165_attach(const struct si2165_config *config, if (val != state->config.chip_mode) goto error; - io_ret = si2165_readreg8(state, 0x0023 , &state->revcode); + io_ret = si2165_readreg8(state, 0x0023, &state->chip_revcode); if (io_ret < 0) goto error; @@ -997,22 +1007,35 @@ struct dvb_frontend *si2165_attach(const struct si2165_config *config, if (io_ret < 0) goto error; - dev_info(&state->i2c->dev, "%s: hardware revision 0x%02x, chip type 0x%02x\n", - KBUILD_MODNAME, state->revcode, state->chip_type); + if (state->chip_revcode < 26) + rev_char = 'A' + state->chip_revcode; + else + rev_char = '?'; - /* It is a guess that register 0x0118 (chip type?) can be used to - * differ between si2161, si2163 and si2165 - * Only si2165 has been tested. - */ - if (state->revcode == 0x03 && state->chip_type == 0x07) { + switch (state->chip_type) { + case 0x06: + chip_name = "Si2161"; + state->has_dvbt = true; + break; + case 0x07: + chip_name = "Si2165"; state->has_dvbt = true; state->has_dvbc = true; - } else { - dev_err(&state->i2c->dev, "%s: Unsupported chip.\n", - KBUILD_MODNAME); + break; + default: + dev_err(&state->i2c->dev, "%s: Unsupported Silicon Labs chip (type %d, rev %d)\n", + KBUILD_MODNAME, state->chip_type, state->chip_revcode); goto error; } + dev_info(&state->i2c->dev, + "%s: Detected Silicon Labs %s-%c (type %d, rev %d)\n", + KBUILD_MODNAME, chip_name, rev_char, state->chip_type, + state->chip_revcode); + + strlcat(state->frontend.ops.info.name, chip_name, + sizeof(state->frontend.ops.info.name)); + n = 0; if (state->has_dvbt) { state->frontend.ops.delsys[n++] = SYS_DVBT; @@ -1037,4 +1060,4 @@ MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); MODULE_DESCRIPTION("Silicon Labs Si2165 DVB-C/-T Demodulator driver"); MODULE_AUTHOR("Matthias Schwarzott <zzam@gentoo.org>"); MODULE_LICENSE("GPL"); -MODULE_FIRMWARE(SI2165_FIRMWARE); +MODULE_FIRMWARE(SI2165_FIRMWARE_REV_D); |