From patchwork Fri Nov 13 22:54:57 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthias Schwarzott X-Patchwork-Id: 31879 Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.72) (envelope-from ) id 1ZxNG5-0002PX-O2; Fri, 13 Nov 2015 23:55:53 +0100 X-tubIT-Incoming-IP: 209.132.180.67 Received: from vger.kernel.org ([209.132.180.67]) by mail.tu-berlin.de (exim-4.76/mailfrontend-8) with esmtp id 1ZxNG3-0007CX-ly; Fri, 13 Nov 2015 23:55:53 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751965AbbKMWzt (ORCPT + 1 other); Fri, 13 Nov 2015 17:55:49 -0500 Received: from smtp.gentoo.org ([140.211.166.183]:41610 "EHLO smtp.gentoo.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750872AbbKMWzs (ORCPT ); Fri, 13 Nov 2015 17:55:48 -0500 Received: from gauss.fritz.box (unknown [IPv6:2001:a62:10bd:5401:e11e:7dd8:4593:b5b9]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: zzam) by smtp.gentoo.org (Postfix) with ESMTPSA id 9FAAE340784; Fri, 13 Nov 2015 22:55:46 +0000 (UTC) From: Matthias Schwarzott To: linux-media@vger.kernel.org Cc: mchehab@osg.samsung.com, crope@iki.fi, xpert-reactos@gmx.de, Matthias Schwarzott Subject: [PATCH 3/4] si2165: cleanup logic Date: Fri, 13 Nov 2015 23:54:57 +0100 Message-Id: <1447455298-5562-3-git-send-email-zzam@gentoo.org> X-Mailer: git-send-email 2.6.3 In-Reply-To: <1447455298-5562-1-git-send-email-zzam@gentoo.org> References: <1447455298-5562-1-git-send-email-zzam@gentoo.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-PMX-Version: 6.0.0.2142326, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2015.11.13.224817 X-PMX-Spam: Gauge=IIIIIIII, Probability=8%, Report=' MULTIPLE_RCPTS 0.1, HTML_00_01 0.05, HTML_00_10 0.05, NO_URI_HTTPS 0, REFERENCES 0, SINGLE_URI_IN_BODY 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CP_URI_IN_BODY 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __IN_REP_TO 0, __MIME_TEXT_ONLY 0, __MULTIPLE_RCPTS_CC_X2 0, __REFERENCES 0, __SANE_MSGID 0, __SINGLE_URI_TEXT 0, __SUBJ_ALPHA_END 0, __TO_MALFORMED_2 0, __TO_NO_NAME 0, __URI_IN_BODY 0, __URI_NO_WWW 0, __URI_NS ' Make si2165_set_if_freq_shift query IF frequency itself. create function to write a set of registers Always write adc registers after reset. Signed-off-by: Matthias Schwarzott --- drivers/media/dvb-frontends/si2165.c | 173 ++++++++++++++++++----------------- 1 file changed, 87 insertions(+), 86 deletions(-) diff --git a/drivers/media/dvb-frontends/si2165.c b/drivers/media/dvb-frontends/si2165.c index c5d7c0d..c87d927 100644 --- a/drivers/media/dvb-frontends/si2165.c +++ b/drivers/media/dvb-frontends/si2165.c @@ -243,6 +243,27 @@ err: return ret; } +#define REG16(reg, val) { (reg), (val) & 0xff }, { (reg)+1, (val)>>8 & 0xff } +struct si2165_reg_value_pair { + u16 reg; + u8 val; +}; + +static int si2165_write_reg_list(struct si2165_state *state, + const struct si2165_reg_value_pair *regs, + int count) +{ + int i; + int ret; + + for (i = 0; i < count; i++) { + ret = si2165_writereg8(state, regs[i].reg, regs[i].val); + if (ret < 0) + return ret; + } + return 0; +} + static int si2165_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *s) { @@ -669,22 +690,19 @@ static int si2165_init(struct dvb_frontend *fe) goto error; } - /* write adc values after each reset*/ - ret = si2165_writereg8(state, 0x012a, 0x46); - if (ret < 0) - goto error; - ret = si2165_writereg8(state, 0x012c, 0x00); + /* ts output config */ + ret = si2165_writereg8(state, 0x04e4, 0x20); if (ret < 0) - goto error; - ret = si2165_writereg8(state, 0x012e, 0x0a); + return ret; + ret = si2165_writereg16(state, 0x04ef, 0x00fe); if (ret < 0) - goto error; - ret = si2165_writereg8(state, 0x012f, 0xff); + return ret; + ret = si2165_writereg24(state, 0x04f4, 0x555555); if (ret < 0) - goto error; - ret = si2165_writereg8(state, 0x0123, 0x70); + return ret; + ret = si2165_writereg8(state, 0x04e5, 0x01); if (ret < 0) - goto error; + return ret; return 0; error: @@ -746,12 +764,22 @@ static int si2165_set_oversamp(struct si2165_state *state, u32 dvb_rate) return si2165_writereg32(state, 0x00e4, reg_value); } -static int si2165_set_if_freq_shift(struct si2165_state *state, u32 IF) +static int si2165_set_if_freq_shift(struct si2165_state *state) { + struct dvb_frontend *fe = &(state->frontend); u64 if_freq_shift; s32 reg_value = 0; u32 fe_clk = si2165_get_fe_clk(state); + u32 IF = 0; + + if (!fe->ops.tuner_ops.get_if_frequency) { + dev_err(&state->i2c->dev, + "%s: Error: get_if_frequency() not defined at tuner. Can't work without it!\n", + KBUILD_MODNAME); + return -EINVAL; + } + fe->ops.tuner_ops.get_if_frequency(fe, &IF); if_freq_shift = IF; if_freq_shift <<= 29; @@ -767,35 +795,53 @@ static int si2165_set_if_freq_shift(struct si2165_state *state, u32 IF) return si2165_writereg32(state, 0x00e8, reg_value); } +static const struct si2165_reg_value_pair agc_rewrite[] = { + { 0x012a, 0x46 }, + { 0x012c, 0x00 }, + { 0x012e, 0x0a }, + { 0x012f, 0xff }, + { 0x0123, 0x70 } +}; + +static const struct si2165_reg_value_pair dvbt_regs[] = { + /* impulsive_noise_remover */ + { 0x031c, 0x01 }, + { 0x00cb, 0x00 }, + /* agc2 */ + { 0x016e, 0x41 }, + { 0x016c, 0x0e }, + { 0x016d, 0x10 }, + /* agc */ + { 0x015b, 0x03 }, + { 0x0150, 0x78 }, + /* agc */ + { 0x01a0, 0x78 }, + { 0x01c8, 0x68 }, + /* freq_sync_range */ + REG16(0x030c, 0x0064), + /* gp_reg0 */ + { 0x0387, 0x00 } +}; + static int si2165_set_parameters(struct dvb_frontend *fe) { int ret; struct dtv_frontend_properties *p = &fe->dtv_property_cache; struct si2165_state *state = fe->demodulator_priv; - u8 val[3]; - u32 IF; u32 dvb_rate = 0; u16 bw10k; + u32 bw_hz = p->bandwidth_hz; dprintk("%s: called\n", __func__); - if (!fe->ops.tuner_ops.get_if_frequency) { - dev_err(&state->i2c->dev, - "%s: Error: get_if_frequency() not defined at tuner. Can't work without it!\n", - KBUILD_MODNAME); - return -EINVAL; - } - if (!state->has_dvbt) return -EINVAL; - if (p->bandwidth_hz > 0) { - dvb_rate = p->bandwidth_hz * 8 / 7; - bw10k = p->bandwidth_hz / 10000; - } else { - dvb_rate = 8 * 8 / 7; - bw10k = 800; - } + if (bw_hz == 0) + bw_hz = 8000000; + + dvb_rate = bw_hz * 8 / 7; + bw10k = bw_hz / 10000; /* standard = DVB-T */ ret = si2165_writereg8(state, 0x00ec, 0x01); @@ -805,26 +851,12 @@ static int si2165_set_parameters(struct dvb_frontend *fe) if (ret < 0) return ret; - fe->ops.tuner_ops.get_if_frequency(fe, &IF); - ret = si2165_set_if_freq_shift(state, IF); + ret = si2165_set_if_freq_shift(state); if (ret < 0) return ret; ret = si2165_writereg8(state, 0x08f8, 0x00); if (ret < 0) return ret; - /* ts output config */ - ret = si2165_writereg8(state, 0x04e4, 0x20); - if (ret < 0) - return ret; - ret = si2165_writereg16(state, 0x04ef, 0x00fe); - if (ret < 0) - return ret; - ret = si2165_writereg24(state, 0x04f4, 0x555555); - if (ret < 0) - return ret; - ret = si2165_writereg8(state, 0x04e5, 0x01); - if (ret < 0) - return ret; /* bandwidth in 10KHz steps */ ret = si2165_writereg16(state, 0x0308, bw10k); if (ret < 0) @@ -832,48 +864,11 @@ static int si2165_set_parameters(struct dvb_frontend *fe) ret = si2165_set_oversamp(state, dvb_rate); if (ret < 0) return ret; - /* impulsive_noise_remover */ - ret = si2165_writereg8(state, 0x031c, 0x01); - if (ret < 0) - return ret; - ret = si2165_writereg8(state, 0x00cb, 0x00); - if (ret < 0) - return ret; - /* agc2 */ - ret = si2165_writereg8(state, 0x016e, 0x41); - if (ret < 0) - return ret; - ret = si2165_writereg8(state, 0x016c, 0x0e); - if (ret < 0) - return ret; - ret = si2165_writereg8(state, 0x016d, 0x10); - if (ret < 0) - return ret; - /* agc */ - ret = si2165_writereg8(state, 0x015b, 0x03); - if (ret < 0) - return ret; - ret = si2165_writereg8(state, 0x0150, 0x78); - if (ret < 0) - return ret; - /* agc */ - ret = si2165_writereg8(state, 0x01a0, 0x78); - if (ret < 0) - return ret; - ret = si2165_writereg8(state, 0x01c8, 0x68); - if (ret < 0) - return ret; - /* freq_sync_range */ - ret = si2165_writereg16(state, 0x030c, 0x0064); - if (ret < 0) - return ret; - /* gp_reg0 */ - ret = si2165_readreg8(state, 0x0387, val); - if (ret < 0) - return ret; - ret = si2165_writereg8(state, 0x0387, 0x00); + + ret = si2165_write_reg_list(state, dvbt_regs, ARRAY_SIZE(dvbt_regs)); if (ret < 0) return ret; + /* dsp_addr_jump */ ret = si2165_writereg32(state, 0x0348, 0xf4000000); if (ret < 0) @@ -883,8 +878,7 @@ static int si2165_set_parameters(struct dvb_frontend *fe) fe->ops.tuner_ops.set_params(fe); /* recalc if_freq_shift if IF might has changed */ - fe->ops.tuner_ops.get_if_frequency(fe, &IF); - ret = si2165_set_if_freq_shift(state, IF); + ret = si2165_set_if_freq_shift(state); if (ret < 0) return ret; @@ -903,6 +897,13 @@ static int si2165_set_parameters(struct dvb_frontend *fe) ret = si2165_writereg32(state, 0x0384, 0x00000000); if (ret < 0) return ret; + + /* write adc values after each reset*/ + ret = si2165_write_reg_list(state, agc_rewrite, + ARRAY_SIZE(agc_rewrite)); + if (ret < 0) + goto error; + /* start_synchro */ ret = si2165_writereg8(state, 0x02e0, 0x01); if (ret < 0)