diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/dvb-frontends/si2165.c | 69 |
1 files changed, 39 insertions, 30 deletions
diff --git a/drivers/media/dvb-frontends/si2165.c b/drivers/media/dvb-frontends/si2165.c index 7c2eeee69757..c5d7c0db6b12 100644 --- a/drivers/media/dvb-frontends/si2165.c +++ b/drivers/media/dvb-frontends/si2165.c @@ -1,21 +1,21 @@ /* - Driver for Silicon Labs Si2161 DVB-T and Si2165 DVB-C/-T Demodulator - - Copyright (C) 2013-2014 Matthias Schwarzott <zzam@gentoo.org> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - References: - http://www.silabs.com/Support%20Documents/TechnicalDocs/Si2165-short.pdf -*/ + * Driver for Silicon Labs Si2161 DVB-T and Si2165 DVB-C/-T Demodulator + * + * Copyright (C) 2013-2014 Matthias Schwarzott <zzam@gentoo.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * References: + * http://www.silabs.com/Support%20Documents/TechnicalDocs/Si2165-short.pdf + */ #include <linux/delay.h> #include <linux/errno.h> @@ -31,11 +31,13 @@ #include "si2165_priv.h" #include "si2165.h" -/* Hauppauge WinTV-HVR-930C-HD B130 / PCTV QuatroStick 521e 1113xx - * uses 16 MHz xtal */ - -/* Hauppauge WinTV-HVR-930C-HD B131 / PCTV QuatroStick 522e 1114xx - * uses 24 MHz clock provided by tuner */ +/* + * Hauppauge WinTV-HVR-930C-HD B130 / PCTV QuatroStick 521e 1113xx + * uses 16 MHz xtal + * + * Hauppauge WinTV-HVR-930C-HD B131 / PCTV QuatroStick 522e 1114xx + * uses 24 MHz clock provided by tuner + */ struct si2165_state { struct i2c_adapter *i2c; @@ -258,8 +260,10 @@ static int si2165_init_pll(struct si2165_state *state) u8 divl = 12; u8 buf[4]; - /* hardcoded values can be deleted if calculation is verified - * or it yields the same values as the windows driver */ + /* + * hardcoded values can be deleted if calculation is verified + * or it yields the same values as the windows driver + */ switch (ref_freq_Hz) { case 16000000u: divn = 56; @@ -274,8 +278,10 @@ static int si2165_init_pll(struct si2165_state *state) if (ref_freq_Hz > 16000000u) divr = 2; - /* now select divn and divp such that - * fvco is in 1624..1824 MHz */ + /* + * now select divn and divp such that + * fvco is in 1624..1824 MHz + */ if (1624000000u * divr > ref_freq_Hz * 2u * 63u) divp = 4; @@ -341,10 +347,12 @@ static int si2165_upload_firmware_block(struct si2165_state *state, if (len % 4 != 0) return -EINVAL; - deb_fw_load("si2165_upload_firmware_block called with len=0x%x offset=0x%x blockcount=0x%x\n", + deb_fw_load( + "si2165_upload_firmware_block called with len=0x%x offset=0x%x blockcount=0x%x\n", len, offset, block_count); while (offset+12 <= len && cur_block < block_count) { - deb_fw_load("si2165_upload_firmware_block in while len=0x%x offset=0x%x cur_block=0x%x blockcount=0x%x\n", + deb_fw_load( + "si2165_upload_firmware_block in while len=0x%x offset=0x%x cur_block=0x%x blockcount=0x%x\n", len, offset, cur_block, block_count); wordcount = data[offset]; if (wordcount < 1 || data[offset+1] || @@ -383,7 +391,8 @@ static int si2165_upload_firmware_block(struct si2165_state *state, cur_block++; } - deb_fw_load("si2165_upload_firmware_block after while len=0x%x offset=0x%x cur_block=0x%x blockcount=0x%x\n", + deb_fw_load( + "si2165_upload_firmware_block after while len=0x%x offset=0x%x cur_block=0x%x blockcount=0x%x\n", len, offset, cur_block, block_count); if (poffset) @@ -633,7 +642,7 @@ static int si2165_init(struct dvb_frontend *fe) goto error; /* ber_pkt */ - ret = si2165_writereg16(state, 0x0470 , 0x7530); + ret = si2165_writereg16(state, 0x0470, 0x7530); if (ret < 0) goto error; |