From patchwork Wed Oct 3 08:28:56 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antti Palosaari X-Patchwork-Id: 1540511 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id E12CDDF238 for ; Wed, 3 Oct 2012 08:29:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753122Ab2JCI3a (ORCPT ); Wed, 3 Oct 2012 04:29:30 -0400 Received: from mail.kapsi.fi ([217.30.184.167]:59991 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751767Ab2JCI31 (ORCPT ); Wed, 3 Oct 2012 04:29:27 -0400 Received: from dyn3-82-128-186-237.psoas.suomi.net ([82.128.186.237] helo=localhost.localdomain) by mail.kapsi.fi with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from ) id 1TJKKb-0005Js-4E; Wed, 03 Oct 2012 11:29:25 +0300 From: Antti Palosaari To: linux-media@vger.kernel.org Cc: Hans Verkuil , Mauro Carvalho Chehab , Antti Palosaari Subject: [PATCH RFC v3] dvb: LNA implementation changes Date: Wed, 3 Oct 2012 11:28:56 +0300 Message-Id: <1349252936-2728-1-git-send-email-crope@iki.fi> X-Mailer: git-send-email 1.7.11.4 X-SA-Exim-Connect-IP: 82.128.186.237 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 * use dvb property cache * implement get (thus API minor++) * PCTV 290e: 1=LNA ON, all the other values LNA OFF Also fix PCTV 290e LNA comment, it is disabled by default Hans and Mauro proposed use of cache implementation of get as they were planning to extend LNA usage for analog side too. Reported-by: Hans Verkuil Reported-by: Mauro Carvalho Chehab Signed-off-by: Antti Palosaari Acked-by: Hans Verkuil --- drivers/media/dvb-core/dvb_frontend.c | 18 ++++++++++++++---- drivers/media/dvb-core/dvb_frontend.h | 4 +++- drivers/media/usb/em28xx/em28xx-dvb.c | 13 +++++++------ include/linux/dvb/version.h | 2 +- 4 files changed, 25 insertions(+), 12 deletions(-) diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c index 8f58f24..246a3c5 100644 --- a/drivers/media/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb-core/dvb_frontend.c @@ -966,6 +966,8 @@ static int dvb_frontend_clear_cache(struct dvb_frontend *fe) break; } + c->lna = LNA_AUTO; + return 0; } @@ -1054,6 +1056,8 @@ static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_B, 0, 0), _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_C, 0, 0), _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_D, 0, 0), + + _DTV_CMD(DTV_LNA, 0, 0), }; static void dtv_property_dump(struct dvb_frontend *fe, struct dtv_property *tvp) @@ -1440,6 +1444,10 @@ static int dtv_property_process_get(struct dvb_frontend *fe, tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_d; break; + case DTV_LNA: + tvp->u.data = c->lna; + break; + default: return -EINVAL; } @@ -1731,10 +1739,6 @@ static int dtv_property_process_set(struct dvb_frontend *fe, case DTV_INTERLEAVING: c->interleaving = tvp->u.data; break; - case DTV_LNA: - if (fe->ops.set_lna) - r = fe->ops.set_lna(fe, tvp->u.data); - break; /* ISDB-T Support here */ case DTV_ISDBT_PARTIAL_RECEPTION: @@ -1806,6 +1810,12 @@ static int dtv_property_process_set(struct dvb_frontend *fe, fe->dtv_property_cache.atscmh_rs_frame_ensemble = tvp->u.data; break; + case DTV_LNA: + c->lna = tvp->u.data; + if (fe->ops.set_lna) + r = fe->ops.set_lna(fe); + break; + default: return -EINVAL; } diff --git a/drivers/media/dvb-core/dvb_frontend.h b/drivers/media/dvb-core/dvb_frontend.h index 44a445c..97112cd 100644 --- a/drivers/media/dvb-core/dvb_frontend.h +++ b/drivers/media/dvb-core/dvb_frontend.h @@ -303,7 +303,7 @@ struct dvb_frontend_ops { int (*dishnetwork_send_legacy_command)(struct dvb_frontend* fe, unsigned long cmd); int (*i2c_gate_ctrl)(struct dvb_frontend* fe, int enable); int (*ts_bus_ctrl)(struct dvb_frontend* fe, int acquire); - int (*set_lna)(struct dvb_frontend *, int); + int (*set_lna)(struct dvb_frontend *); /* These callbacks are for devices that implement their own * tuning algorithms, rather than a simple swzigzag @@ -391,6 +391,8 @@ struct dtv_frontend_properties { u8 atscmh_sccc_code_mode_b; u8 atscmh_sccc_code_mode_c; u8 atscmh_sccc_code_mode_d; + + u32 lna; }; struct dvb_frontend { diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c index 913e522..13ae821 100644 --- a/drivers/media/usb/em28xx/em28xx-dvb.c +++ b/drivers/media/usb/em28xx/em28xx-dvb.c @@ -574,18 +574,19 @@ static void pctv_520e_init(struct em28xx *dev) i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len); }; -static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe, int val) +static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe) { + struct dtv_frontend_properties *c = &fe->dtv_property_cache; struct em28xx *dev = fe->dvb->priv; #ifdef CONFIG_GPIOLIB struct em28xx_dvb *dvb = dev->dvb; int ret; unsigned long flags; - if (val) - flags = GPIOF_OUT_INIT_LOW; + if (c->lna == 1) + flags = GPIOF_OUT_INIT_HIGH; /* enable LNA */ else - flags = GPIOF_OUT_INIT_HIGH; + flags = GPIOF_OUT_INIT_LOW; /* disable LNA */ ret = gpio_request_one(dvb->lna_gpio, flags, NULL); if (ret) @@ -595,8 +596,8 @@ static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe, int val) return ret; #else - dev_warn(&dev->udev->dev, "%s: LNA control is disabled\n", - KBUILD_MODNAME); + dev_warn(&dev->udev->dev, "%s: LNA control is disabled (lna=%u)\n", + KBUILD_MODNAME, c->lna); return 0; #endif } diff --git a/include/linux/dvb/version.h b/include/linux/dvb/version.h index 20e5eac..827cce7 100644 --- a/include/linux/dvb/version.h +++ b/include/linux/dvb/version.h @@ -24,6 +24,6 @@ #define _DVBVERSION_H_ #define DVB_API_VERSION 5 -#define DVB_API_VERSION_MINOR 8 +#define DVB_API_VERSION_MINOR 9 #endif /*_DVBVERSION_H_*/