From patchwork Wed Nov 12 04:11:10 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antti Palosaari X-Patchwork-Id: 5284431 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 4B214C11AC for ; Wed, 12 Nov 2014 04:11:53 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 66E3520165 for ; Wed, 12 Nov 2014 04:11:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5EE552010B for ; Wed, 12 Nov 2014 04:11:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934136AbaKLELl (ORCPT ); Tue, 11 Nov 2014 23:11:41 -0500 Received: from mail.kapsi.fi ([217.30.184.167]:40253 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934133AbaKLELh (ORCPT ); Tue, 11 Nov 2014 23:11:37 -0500 Received: from dyn3-82-128-189-191.psoas.suomi.net ([82.128.189.191] helo=localhost.localdomain) by mail.kapsi.fi with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from ) id 1XoPHL-0001LW-Hn; Wed, 12 Nov 2014 06:11:35 +0200 From: Antti Palosaari To: linux-media@vger.kernel.org Cc: Antti Palosaari Subject: [PATCH 04/11] mn88472: rename mn88472_c.c => mn88472.c Date: Wed, 12 Nov 2014 06:11:10 +0200 Message-Id: <1415765477-23153-5-git-send-email-crope@iki.fi> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1415765477-23153-1-git-send-email-crope@iki.fi> References: <1415765477-23153-1-git-send-email-crope@iki.fi> X-SA-Exim-Connect-IP: 82.128.189.191 X-SA-Exim-Mail-From: crope@iki.fi X-SA-Exim-Scanned: No (on mail.kapsi.fi); SAEximRunCond expanded to false Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-7.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Original plan was to implement driver as one file per used demod standard (mn88472_c.c, mn88472_t.c and mn88472_t2.c). However, that plan was a mistake as driver code differences are so small between different standards. Due to that rename this file and implement all the needed functionality to that file. Signed-off-by: Antti Palosaari --- drivers/media/dvb-frontends/Makefile | 1 - drivers/media/dvb-frontends/mn88472.c | 423 +++++++++++++++++++++++++++++ drivers/media/dvb-frontends/mn88472.h | 10 +- drivers/media/dvb-frontends/mn88472_c.c | 423 ----------------------------- drivers/media/dvb-frontends/mn88472_priv.h | 2 +- 5 files changed, 429 insertions(+), 430 deletions(-) create mode 100644 drivers/media/dvb-frontends/mn88472.c delete mode 100644 drivers/media/dvb-frontends/mn88472_c.c diff --git a/drivers/media/dvb-frontends/Makefile b/drivers/media/dvb-frontends/Makefile index 27d82b6..b82225f6 100644 --- a/drivers/media/dvb-frontends/Makefile +++ b/drivers/media/dvb-frontends/Makefile @@ -15,7 +15,6 @@ stv0900-objs := stv0900_core.o stv0900_sw.o drxd-objs := drxd_firm.o drxd_hard.o cxd2820r-objs := cxd2820r_core.o cxd2820r_c.o cxd2820r_t.o cxd2820r_t2.o drxk-objs := drxk_hard.o -mn88472-objs := mn88472_c.o obj-$(CONFIG_DVB_PLL) += dvb-pll.o obj-$(CONFIG_DVB_STV0299) += stv0299.o diff --git a/drivers/media/dvb-frontends/mn88472.c b/drivers/media/dvb-frontends/mn88472.c new file mode 100644 index 0000000..a3c4ae1 --- /dev/null +++ b/drivers/media/dvb-frontends/mn88472.c @@ -0,0 +1,423 @@ +/* + * Panasonic MN88472 DVB-T/T2/C demodulator driver + * + * Copyright (C) 2013 Antti Palosaari + * + * 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. + */ + +#include "mn88472_priv.h" + +static struct dvb_frontend_ops mn88472_ops; + +/* write multiple registers */ +static int mn88472_wregs(struct mn88472_state *s, u16 reg, const u8 *val, int len) +{ +#define MAX_WR_LEN 21 +#define MAX_WR_XFER_LEN (MAX_WR_LEN + 1) + int ret; + u8 buf[MAX_WR_XFER_LEN]; + struct i2c_msg msg[1] = { + { + .addr = (reg >> 8) & 0xff, + .flags = 0, + .len = 1 + len, + .buf = buf, + } + }; + + if (WARN_ON(len > MAX_WR_LEN)) + return -EINVAL; + + buf[0] = (reg >> 0) & 0xff; + memcpy(&buf[1], val, len); + + ret = i2c_transfer(s->i2c, msg, 1); + if (ret == 1) { + ret = 0; + } else { + dev_warn(&s->i2c->dev, + "%s: i2c wr failed=%d reg=%02x len=%d\n", + KBUILD_MODNAME, ret, reg, len); + ret = -EREMOTEIO; + } + + return ret; +} + +/* read multiple registers */ +static int mn88472_rregs(struct mn88472_state *s, u16 reg, u8 *val, int len) +{ +#define MAX_RD_LEN 2 +#define MAX_RD_XFER_LEN (MAX_RD_LEN) + int ret; + u8 buf[MAX_RD_XFER_LEN]; + struct i2c_msg msg[2] = { + { + .addr = (reg >> 8) & 0xff, + .flags = 0, + .len = 1, + .buf = buf, + }, { + .addr = (reg >> 8) & 0xff, + .flags = I2C_M_RD, + .len = len, + .buf = buf, + } + }; + + if (WARN_ON(len > MAX_RD_LEN)) + return -EINVAL; + + buf[0] = (reg >> 0) & 0xff; + + ret = i2c_transfer(s->i2c, msg, 2); + if (ret == 2) { + memcpy(val, buf, len); + ret = 0; + } else { + dev_warn(&s->i2c->dev, + "%s: i2c rd failed=%d reg=%02x len=%d\n", + KBUILD_MODNAME, ret, reg, len); + ret = -EREMOTEIO; + } + + return ret; +} + +/* write single register */ +static int mn88472_wreg(struct mn88472_state *s, u16 reg, u8 val) +{ + return mn88472_wregs(s, reg, &val, 1); +} + +/* read single register */ +static int mn88472_rreg(struct mn88472_state *s, u16 reg, u8 *val) +{ + return mn88472_rregs(s, reg, val, 1); +} + +static int mn88472_get_tune_settings(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings *s) +{ + s->min_delay_ms = 400; + return 0; +} + +static int mn88472_set_frontend(struct dvb_frontend *fe) +{ + struct mn88472_state *s = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret; + u32 if_frequency = 0; + dev_dbg(&s->i2c->dev, + "%s: delivery_system=%d modulation=%d frequency=%d symbol_rate=%d inversion=%d\n", + __func__, c->delivery_system, c->modulation, + c->frequency, c->symbol_rate, c->inversion); + + if (!s->warm) { + ret = -EAGAIN; + goto err; + } + + /* program tuner */ + if (fe->ops.tuner_ops.set_params) { + ret = fe->ops.tuner_ops.set_params(fe); + if (ret) + goto err; + } + + if (fe->ops.tuner_ops.get_if_frequency) { + ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency); + if (ret) + goto err; + + dev_dbg(&s->i2c->dev, "%s: get_if_frequency=%d\n", + __func__, if_frequency); + } + + if (if_frequency != 5070000) { + dev_err(&s->i2c->dev, "%s: IF frequency %d not supported\n", + KBUILD_MODNAME, if_frequency); + ret = -EINVAL; + goto err; + } + + ret = mn88472_wregs(s, 0x1c08, "\x1d", 1); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x18d9, "\xe3", 1); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x1c83, "\x01", 1); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x1c00, "\x66\x00\x01\x04\x00", 5); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x1c10, + "\x3f\x50\x2c\x8f\x80\x00\x08\xee\x08\xee", 10); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x1846, "\x00", 1); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x18ae, "\x00", 1); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x18b0, "\x0b", 1); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x18b4, "\x00", 1); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x18cd, "\x17", 1); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x18d4, "\x09", 1); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x18d6, "\x48", 1); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x1a00, "\xb0", 1); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x1cf8, "\x9f", 1); + if (ret) + goto err; + + s->delivery_system = c->delivery_system; + + return 0; +err: + dev_dbg(&s->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int mn88472_read_status(struct dvb_frontend *fe, fe_status_t *status) +{ + struct mn88472_state *s = fe->demodulator_priv; + int ret; + u8 u8tmp; + + *status = 0; + + if (!s->warm) { + ret = -EAGAIN; + goto err; + } + + ret = mn88472_rreg(s, 0x1a84, &u8tmp); + if (ret) + goto err; + + if (u8tmp == 0x08) + *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | + FE_HAS_SYNC | FE_HAS_LOCK; + + return 0; +err: + dev_dbg(&s->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int mn88472_init(struct dvb_frontend *fe) +{ + struct mn88472_state *s = fe->demodulator_priv; + int ret, len, remaining; + const struct firmware *fw = NULL; + u8 *fw_file = MN88472_FIRMWARE; + dev_dbg(&s->i2c->dev, "%s:\n", __func__); + + /* set cold state by default */ + s->warm = false; + + /* power on */ + ret = mn88472_wreg(s, 0x1c05, 0x00); + if (ret) + goto err; + + ret = mn88472_wregs(s, 0x1c0b, "\x00\x00", 2); + if (ret) + goto err; + + /* request the firmware, this will block and timeout */ + ret = request_firmware(&fw, fw_file, s->i2c->dev.parent); + if (ret) { + dev_err(&s->i2c->dev, "%s: firmare file '%s' not found\n", + KBUILD_MODNAME, fw_file); + goto err; + } + + dev_info(&s->i2c->dev, "%s: downloading firmware from file '%s'\n", + KBUILD_MODNAME, fw_file); + + ret = mn88472_wreg(s, 0x18f5, 0x03); + if (ret) + goto err; + + for (remaining = fw->size; remaining > 0; + remaining -= (s->cfg->i2c_wr_max - 1)) { + len = remaining; + if (len > (s->cfg->i2c_wr_max - 1)) + len = (s->cfg->i2c_wr_max - 1); + + ret = mn88472_wregs(s, 0x18f6, + &fw->data[fw->size - remaining], len); + if (ret) { + dev_err(&s->i2c->dev, + "%s: firmware download failed=%d\n", + KBUILD_MODNAME, ret); + goto err; + } + } + + ret = mn88472_wreg(s, 0x18f5, 0x00); + if (ret) + goto err; + + release_firmware(fw); + fw = NULL; + + /* warm state */ + s->warm = true; + + return 0; +err: + if (fw) + release_firmware(fw); + + dev_dbg(&s->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int mn88472_sleep(struct dvb_frontend *fe) +{ + struct mn88472_state *s = fe->demodulator_priv; + int ret; + dev_dbg(&s->i2c->dev, "%s:\n", __func__); + + /* power off */ + ret = mn88472_wreg(s, 0x1c0b, 0x30); + if (ret) + goto err; + + ret = mn88472_wreg(s, 0x1c05, 0x3e); + if (ret) + goto err; + + s->delivery_system = SYS_UNDEFINED; + + return 0; +err: + dev_dbg(&s->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static void mn88472_release(struct dvb_frontend *fe) +{ + struct mn88472_state *s = fe->demodulator_priv; + kfree(s); +} + +struct dvb_frontend *mn88472_attach(const struct mn88472_config *cfg, + struct i2c_adapter *i2c) +{ + int ret; + struct mn88472_state *s; + u8 u8tmp; + dev_dbg(&i2c->dev, "%s:\n", __func__); + + /* allocate memory for the internal state */ + s = kzalloc(sizeof(struct mn88472_state), GFP_KERNEL); + if (!s) { + ret = -ENOMEM; + dev_err(&i2c->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME); + goto err; + } + + s->cfg = cfg; + s->i2c = i2c; + + /* check demod responds to I2C */ + ret = mn88472_rreg(s, 0x1c00, &u8tmp); + if (ret) + goto err; + + /* create dvb_frontend */ + memcpy(&s->fe.ops, &mn88472_ops, sizeof(struct dvb_frontend_ops)); + s->fe.demodulator_priv = s; + + return &s->fe; +err: + dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret); + kfree(s); + return NULL; +} +EXPORT_SYMBOL(mn88472_attach); + +static struct dvb_frontend_ops mn88472_ops = { + .delsys = {SYS_DVBC_ANNEX_A}, + .info = { + .name = "Panasonic MN88472", + .caps = FE_CAN_FEC_1_2 | + FE_CAN_FEC_2_3 | + FE_CAN_FEC_3_4 | + FE_CAN_FEC_5_6 | + FE_CAN_FEC_7_8 | + FE_CAN_FEC_AUTO | + FE_CAN_QPSK | + FE_CAN_QAM_16 | + FE_CAN_QAM_32 | + FE_CAN_QAM_64 | + FE_CAN_QAM_128 | + FE_CAN_QAM_256 | + FE_CAN_QAM_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | + FE_CAN_GUARD_INTERVAL_AUTO | + FE_CAN_HIERARCHY_AUTO | + FE_CAN_MUTE_TS | + FE_CAN_2G_MODULATION | + FE_CAN_MULTISTREAM + }, + + .release = mn88472_release, + + .get_tune_settings = mn88472_get_tune_settings, + + .init = mn88472_init, + .sleep = mn88472_sleep, + + .set_frontend = mn88472_set_frontend, +/* .get_frontend = mn88472_get_frontend, */ + + .read_status = mn88472_read_status, +/* .read_snr = mn88472_read_snr, */ +}; + +MODULE_AUTHOR("Antti Palosaari "); +MODULE_DESCRIPTION("Panasonic MN88472 DVB-T/T2/C demodulator driver"); +MODULE_LICENSE("GPL"); +MODULE_FIRMWARE(MN88472_FIRMWARE); diff --git a/drivers/media/dvb-frontends/mn88472.h b/drivers/media/dvb-frontends/mn88472.h index c817bfb..5ce6ac1 100644 --- a/drivers/media/dvb-frontends/mn88472.h +++ b/drivers/media/dvb-frontends/mn88472.h @@ -19,7 +19,7 @@ #include -struct mn88472_c_config { +struct mn88472_config { /* * max bytes I2C client could write * Value must be set. @@ -28,13 +28,13 @@ struct mn88472_c_config { }; #if IS_ENABLED(CONFIG_DVB_MN88472) -extern struct dvb_frontend *mn88472_attach_c( - const struct mn88472_c_config *cfg, +extern struct dvb_frontend *mn88472_attach( + const struct mn88472_config *cfg, struct i2c_adapter *i2c ); #else -static inline struct dvb_frontend *mn88472_attach_c( - const struct mn88472_c_config *cfg, +static inline struct dvb_frontend *mn88472_attach( + const struct mn88472_config *cfg, struct i2c_adapter *i2c ) { diff --git a/drivers/media/dvb-frontends/mn88472_c.c b/drivers/media/dvb-frontends/mn88472_c.c deleted file mode 100644 index b5bd326..0000000 --- a/drivers/media/dvb-frontends/mn88472_c.c +++ /dev/null @@ -1,423 +0,0 @@ -/* - * Panasonic MN88472 DVB-T/T2/C demodulator driver - * - * Copyright (C) 2013 Antti Palosaari - * - * 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. - */ - -#include "mn88472_priv.h" - -static struct dvb_frontend_ops mn88472_ops_c; - -/* write multiple registers */ -static int mn88472_wregs(struct mn88472_state *s, u16 reg, const u8 *val, int len) -{ -#define MAX_WR_LEN 21 -#define MAX_WR_XFER_LEN (MAX_WR_LEN + 1) - int ret; - u8 buf[MAX_WR_XFER_LEN]; - struct i2c_msg msg[1] = { - { - .addr = (reg >> 8) & 0xff, - .flags = 0, - .len = 1 + len, - .buf = buf, - } - }; - - if (WARN_ON(len > MAX_WR_LEN)) - return -EINVAL; - - buf[0] = (reg >> 0) & 0xff; - memcpy(&buf[1], val, len); - - ret = i2c_transfer(s->i2c, msg, 1); - if (ret == 1) { - ret = 0; - } else { - dev_warn(&s->i2c->dev, - "%s: i2c wr failed=%d reg=%02x len=%d\n", - KBUILD_MODNAME, ret, reg, len); - ret = -EREMOTEIO; - } - - return ret; -} - -/* read multiple registers */ -static int mn88472_rregs(struct mn88472_state *s, u16 reg, u8 *val, int len) -{ -#define MAX_RD_LEN 2 -#define MAX_RD_XFER_LEN (MAX_RD_LEN) - int ret; - u8 buf[MAX_RD_XFER_LEN]; - struct i2c_msg msg[2] = { - { - .addr = (reg >> 8) & 0xff, - .flags = 0, - .len = 1, - .buf = buf, - }, { - .addr = (reg >> 8) & 0xff, - .flags = I2C_M_RD, - .len = len, - .buf = buf, - } - }; - - if (WARN_ON(len > MAX_RD_LEN)) - return -EINVAL; - - buf[0] = (reg >> 0) & 0xff; - - ret = i2c_transfer(s->i2c, msg, 2); - if (ret == 2) { - memcpy(val, buf, len); - ret = 0; - } else { - dev_warn(&s->i2c->dev, - "%s: i2c rd failed=%d reg=%02x len=%d\n", - KBUILD_MODNAME, ret, reg, len); - ret = -EREMOTEIO; - } - - return ret; -} - -/* write single register */ -static int mn88472_wreg(struct mn88472_state *s, u16 reg, u8 val) -{ - return mn88472_wregs(s, reg, &val, 1); -} - -/* read single register */ -static int mn88472_rreg(struct mn88472_state *s, u16 reg, u8 *val) -{ - return mn88472_rregs(s, reg, val, 1); -} - -static int mn88472_get_tune_settings(struct dvb_frontend *fe, - struct dvb_frontend_tune_settings *s) -{ - s->min_delay_ms = 400; - return 0; -} - -static int mn88472_set_frontend_c(struct dvb_frontend *fe) -{ - struct mn88472_state *s = fe->demodulator_priv; - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - int ret; - u32 if_frequency = 0; - dev_dbg(&s->i2c->dev, - "%s: delivery_system=%d modulation=%d frequency=%d symbol_rate=%d inversion=%d\n", - __func__, c->delivery_system, c->modulation, - c->frequency, c->symbol_rate, c->inversion); - - if (!s->warm) { - ret = -EAGAIN; - goto err; - } - - /* program tuner */ - if (fe->ops.tuner_ops.set_params) { - ret = fe->ops.tuner_ops.set_params(fe); - if (ret) - goto err; - } - - if (fe->ops.tuner_ops.get_if_frequency) { - ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency); - if (ret) - goto err; - - dev_dbg(&s->i2c->dev, "%s: get_if_frequency=%d\n", - __func__, if_frequency); - } - - if (if_frequency != 5070000) { - dev_err(&s->i2c->dev, "%s: IF frequency %d not supported\n", - KBUILD_MODNAME, if_frequency); - ret = -EINVAL; - goto err; - } - - ret = mn88472_wregs(s, 0x1c08, "\x1d", 1); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x18d9, "\xe3", 1); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x1c83, "\x01", 1); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x1c00, "\x66\x00\x01\x04\x00", 5); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x1c10, - "\x3f\x50\x2c\x8f\x80\x00\x08\xee\x08\xee", 10); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x1846, "\x00", 1); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x18ae, "\x00", 1); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x18b0, "\x0b", 1); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x18b4, "\x00", 1); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x18cd, "\x17", 1); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x18d4, "\x09", 1); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x18d6, "\x48", 1); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x1a00, "\xb0", 1); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x1cf8, "\x9f", 1); - if (ret) - goto err; - - s->delivery_system = c->delivery_system; - - return 0; -err: - dev_dbg(&s->i2c->dev, "%s: failed=%d\n", __func__, ret); - return ret; -} - -static int mn88472_read_status_c(struct dvb_frontend *fe, fe_status_t *status) -{ - struct mn88472_state *s = fe->demodulator_priv; - int ret; - u8 u8tmp; - - *status = 0; - - if (!s->warm) { - ret = -EAGAIN; - goto err; - } - - ret = mn88472_rreg(s, 0x1a84, &u8tmp); - if (ret) - goto err; - - if (u8tmp == 0x08) - *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | - FE_HAS_SYNC | FE_HAS_LOCK; - - return 0; -err: - dev_dbg(&s->i2c->dev, "%s: failed=%d\n", __func__, ret); - return ret; -} - -static int mn88472_init_c(struct dvb_frontend *fe) -{ - struct mn88472_state *s = fe->demodulator_priv; - int ret, len, remaining; - const struct firmware *fw = NULL; - u8 *fw_file = MN88472_FIRMWARE; - dev_dbg(&s->i2c->dev, "%s:\n", __func__); - - /* set cold state by default */ - s->warm = false; - - /* power on */ - ret = mn88472_wreg(s, 0x1c05, 0x00); - if (ret) - goto err; - - ret = mn88472_wregs(s, 0x1c0b, "\x00\x00", 2); - if (ret) - goto err; - - /* request the firmware, this will block and timeout */ - ret = request_firmware(&fw, fw_file, s->i2c->dev.parent); - if (ret) { - dev_err(&s->i2c->dev, "%s: firmare file '%s' not found\n", - KBUILD_MODNAME, fw_file); - goto err; - } - - dev_info(&s->i2c->dev, "%s: downloading firmware from file '%s'\n", - KBUILD_MODNAME, fw_file); - - ret = mn88472_wreg(s, 0x18f5, 0x03); - if (ret) - goto err; - - for (remaining = fw->size; remaining > 0; - remaining -= (s->cfg->i2c_wr_max - 1)) { - len = remaining; - if (len > (s->cfg->i2c_wr_max - 1)) - len = (s->cfg->i2c_wr_max - 1); - - ret = mn88472_wregs(s, 0x18f6, - &fw->data[fw->size - remaining], len); - if (ret) { - dev_err(&s->i2c->dev, - "%s: firmware download failed=%d\n", - KBUILD_MODNAME, ret); - goto err; - } - } - - ret = mn88472_wreg(s, 0x18f5, 0x00); - if (ret) - goto err; - - release_firmware(fw); - fw = NULL; - - /* warm state */ - s->warm = true; - - return 0; -err: - if (fw) - release_firmware(fw); - - dev_dbg(&s->i2c->dev, "%s: failed=%d\n", __func__, ret); - return ret; -} - -static int mn88472_sleep_c(struct dvb_frontend *fe) -{ - struct mn88472_state *s = fe->demodulator_priv; - int ret; - dev_dbg(&s->i2c->dev, "%s:\n", __func__); - - /* power off */ - ret = mn88472_wreg(s, 0x1c0b, 0x30); - if (ret) - goto err; - - ret = mn88472_wreg(s, 0x1c05, 0x3e); - if (ret) - goto err; - - s->delivery_system = SYS_UNDEFINED; - - return 0; -err: - dev_dbg(&s->i2c->dev, "%s: failed=%d\n", __func__, ret); - return ret; -} - -static void mn88472_release_c(struct dvb_frontend *fe) -{ - struct mn88472_state *s = fe->demodulator_priv; - kfree(s); -} - -struct dvb_frontend *mn88472_attach_c(const struct mn88472_c_config *cfg, - struct i2c_adapter *i2c) -{ - int ret; - struct mn88472_state *s; - u8 u8tmp; - dev_dbg(&i2c->dev, "%s:\n", __func__); - - /* allocate memory for the internal state */ - s = kzalloc(sizeof(struct mn88472_state), GFP_KERNEL); - if (!s) { - ret = -ENOMEM; - dev_err(&i2c->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME); - goto err; - } - - s->cfg = cfg; - s->i2c = i2c; - - /* check demod responds to I2C */ - ret = mn88472_rreg(s, 0x1c00, &u8tmp); - if (ret) - goto err; - - /* create dvb_frontend */ - memcpy(&s->fe.ops, &mn88472_ops_c, sizeof(struct dvb_frontend_ops)); - s->fe.demodulator_priv = s; - - return &s->fe; -err: - dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret); - kfree(s); - return NULL; -} -EXPORT_SYMBOL(mn88472_attach_c); - -static struct dvb_frontend_ops mn88472_ops_c = { - .delsys = {SYS_DVBC_ANNEX_A}, - .info = { - .name = "Panasonic MN88472", - .caps = FE_CAN_FEC_1_2 | - FE_CAN_FEC_2_3 | - FE_CAN_FEC_3_4 | - FE_CAN_FEC_5_6 | - FE_CAN_FEC_7_8 | - FE_CAN_FEC_AUTO | - FE_CAN_QPSK | - FE_CAN_QAM_16 | - FE_CAN_QAM_32 | - FE_CAN_QAM_64 | - FE_CAN_QAM_128 | - FE_CAN_QAM_256 | - FE_CAN_QAM_AUTO | - FE_CAN_TRANSMISSION_MODE_AUTO | - FE_CAN_GUARD_INTERVAL_AUTO | - FE_CAN_HIERARCHY_AUTO | - FE_CAN_MUTE_TS | - FE_CAN_2G_MODULATION | - FE_CAN_MULTISTREAM - }, - - .release = mn88472_release_c, - - .get_tune_settings = mn88472_get_tune_settings, - - .init = mn88472_init_c, - .sleep = mn88472_sleep_c, - - .set_frontend = mn88472_set_frontend_c, -/* .get_frontend = mn88472_get_frontend_c, */ - - .read_status = mn88472_read_status_c, -/* .read_snr = mn88472_read_snr_c, */ -}; - -MODULE_AUTHOR("Antti Palosaari "); -MODULE_DESCRIPTION("Panasonic MN88472 DVB-T/T2/C demodulator driver"); -MODULE_LICENSE("GPL"); -MODULE_FIRMWARE(MN88472_FIRMWARE); diff --git a/drivers/media/dvb-frontends/mn88472_priv.h b/drivers/media/dvb-frontends/mn88472_priv.h index ecade84..1aaa25f 100644 --- a/drivers/media/dvb-frontends/mn88472_priv.h +++ b/drivers/media/dvb-frontends/mn88472_priv.h @@ -27,7 +27,7 @@ struct mn88472_state { struct i2c_adapter *i2c; - const struct mn88472_c_config *cfg; + const struct mn88472_config *cfg; struct dvb_frontend fe; fe_delivery_system_t delivery_system; bool warm; /* FW running */