From patchwork Tue Aug 27 15:01:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akihiro TSUKADA X-Patchwork-Id: 11117129 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 54B6614D5 for ; Tue, 27 Aug 2019 15:02:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1505221883 for ; Tue, 27 Aug 2019 15:02:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="c8ni349x" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726527AbfH0PCC (ORCPT ); Tue, 27 Aug 2019 11:02:02 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:43917 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725811AbfH0PCC (ORCPT ); Tue, 27 Aug 2019 11:02:02 -0400 Received: by mail-pf1-f196.google.com with SMTP id v12so14290251pfn.10 for ; Tue, 27 Aug 2019 08:02:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=7SlE2aa666dXHnwY5r/fAMvQnmaT2MNgvCaijlyocYM=; b=c8ni349xdIVyCKDzMB9HtqhjKyKkApAe3/UF+i8o/vjBgMiuzb9JraCuPn5iT3ASr0 1S0CFTfOgYDJz/nGkxrtiddXdtgBcKioyJFsM2u46weathoar0mxUGUeTdLo9fwcWkE8 jbbjWsvPVefKBceVBhjMPYxMw+CyE3mDNFEgLDbLrNoyAvr7K4FgmStJa8z4yrWhXKYG 5+lJ0FoaZafHpkZ7WGUaqs4uJwsDibhVd1vpjvbzvF03sCEeHp92WGXFcIiA4IeWRCXE B8nadLkvCr00xATZffBtGhLuKa9SRJ+NrTllx3AsOo0PxlOQXE3C8/umZ+48HgUUxo+8 Um/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=7SlE2aa666dXHnwY5r/fAMvQnmaT2MNgvCaijlyocYM=; b=XD2ISKkukYAdqEaN5k28LgvMwVcexNz0Qo2QwdcTBIiWPCdbfoBuUhQQWGCJd4Hu5m Tup9JqO5PgV0qju5hgSQ+IZrxjqd25Ng4wV3D+kH9k52adiEsgAiFNBGkGmv9vEp0b50 /S+/fyV6b0H+C2uIf30DYEzHdkqA+u8tm/hOpodSVQkvMJNnvw79fXQkt685V+zs/bC3 zmzwSbcN4MkAe02wer//r4C3UIc0erXJPw+euanjwXgf92XW4Ttg6TNWHoHcANUbs8iW 2HyJvcfa1qJz6w+QjUE8mhYbvo055K2jwP7riBaKP/+jLrjsw5eBO9E+WjXrdVel8nop qXzQ== X-Gm-Message-State: APjAAAV5CLqpJCmiyYOStzka9VYR15KarQMyfG3Y6P9En4q/BiGB56/g UvafUP9CpYXd2DWqajxPGzT6FZXi X-Google-Smtp-Source: APXvYqwDDx4XQi9q8aAwQPJISwQwVx6a+9U0cT+Sp9zy4fk5KowcInTOCjAy549f3oWpeGn5f6AIYA== X-Received: by 2002:a62:5c5:: with SMTP id 188mr26717793pff.227.1566918121363; Tue, 27 Aug 2019 08:02:01 -0700 (PDT) Received: from localhost.localdomain (softbank219203027033.bbtec.net. [219.203.27.33]) by smtp.googlemail.com with ESMTPSA id p20sm14845699pgj.47.2019.08.27.08.01.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Aug 2019 08:02:00 -0700 (PDT) From: tskd08@gmail.com To: linux-media@vger.kernel.org Cc: crope@iki.fi, sean@mess.org, mchehab@kernel.org, Akihiro Tsukada Subject: [PATCH 1/2] dvb-usb-v2/gl861: remove device-specific i2c algo Date: Wed, 28 Aug 2019 00:01:40 +0900 Message-Id: <20190827150141.10240-2-tskd08@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190827150141.10240-1-tskd08@gmail.com> References: <20190827150141.10240-1-tskd08@gmail.com> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Akihiro Tsukada For Friio dvb cards, a dintinct I2C algo was provided to support some "long" I2C messages used in relaying tuner I2C via demod. Since the other (generic) i2c algo in this module has been patched to support those messages in a more generic way, this patch replaces and integrates the device-specific i2c algo with the generic one and simplify the code. Signed-off-by: Akihiro Tsukada --- depends on the patch: "gl861: re-implement i2c adapter logic" https://patchwork.linuxtv.org/patch/58340/ drivers/media/usb/dvb-usb-v2/gl861.c | 234 +++------------------------ 1 file changed, 26 insertions(+), 208 deletions(-) diff --git a/drivers/media/usb/dvb-usb-v2/gl861.c b/drivers/media/usb/dvb-usb-v2/gl861.c index ead6268af7a..7e5bcf49896 100644 --- a/drivers/media/usb/dvb-usb-v2/gl861.c +++ b/drivers/media/usb/dvb-usb-v2/gl861.c @@ -21,7 +21,6 @@ struct gl861 { struct i2c_adapter *demod_sub_i2c; struct i2c_client *i2c_client_demod; struct i2c_client *i2c_client_tuner; - struct i2c_adapter tuner_adap; }; #define CMD_WRITE_SHORT 0x01 @@ -79,6 +78,12 @@ static int gl861_ctrl_msg(struct dvb_usb_device *d, u8 request, u16 value, return ret; } +static int gl861_short_write(struct dvb_usb_device *d, u8 addr, u8 reg, u8 val) +{ + return gl861_ctrl_msg(d, CMD_WRITE_SHORT, + (addr << 9) | val, reg, NULL, 0); +} + static int gl861_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num) { @@ -162,55 +167,6 @@ static struct i2c_algorithm gl861_i2c_algo = { .functionality = gl861_i2c_functionality, }; -static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr, - u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) -{ - u16 index; - u16 value = addr << (8 + 1); - int wo = (rbuf == NULL || rlen == 0); /* write-only */ - u8 req, type; - u8 *buf; - int ret; - - if (wo) { - req = GL861_REQ_I2C_WRITE; - type = GL861_WRITE; - buf = kmemdup(wbuf, wlen, GFP_KERNEL); - } else { /* rw */ - req = GL861_REQ_I2C_READ; - type = GL861_READ; - buf = kmalloc(rlen, GFP_KERNEL); - } - if (!buf) - return -ENOMEM; - - switch (wlen) { - case 1: - index = wbuf[0]; - break; - case 2: - index = wbuf[0]; - value = value + wbuf[1]; - break; - default: - dev_err(&d->udev->dev, "%s: wlen=%d, aborting\n", - KBUILD_MODNAME, wlen); - kfree(buf); - return -EINVAL; - } - - usleep_range(1000, 2000); /* avoid I2C errors */ - - ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type, - value, index, buf, rlen, 2000); - - if (!wo && ret > 0) - memcpy(rbuf, buf, rlen); - - kfree(buf); - return ret; -} - /* Callbacks for DVB USB */ static struct zl10353_config gl861_zl10353_config = { .demod_address = 0x0f, @@ -289,129 +245,6 @@ static const struct friio_config friio_config = { .tuner_info = { I2C_BOARD_INFO("tua6034_friio", 0x60), }, }; -/* For another type of I2C: - * message sent by a USB control-read/write transaction with data stage. - * Used in init/config of Friio. - */ -static int -gl861_i2c_write_ex(struct dvb_usb_device *d, u8 addr, u8 *wbuf, u16 wlen) -{ - u8 *buf; - int ret; - - buf = kmemdup(wbuf, wlen, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0), - GL861_REQ_I2C_RAW, GL861_WRITE, - addr << (8 + 1), 0x0100, buf, wlen, 2000); - kfree(buf); - return ret; -} - -static int -gl861_i2c_read_ex(struct dvb_usb_device *d, u8 addr, u8 *rbuf, u16 rlen) -{ - u8 *buf; - int ret; - - buf = kmalloc(rlen, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), - GL861_REQ_I2C_READ, GL861_READ, - addr << (8 + 1), 0x0100, buf, rlen, 2000); - if (ret > 0 && rlen > 0) - memcpy(buf, rbuf, rlen); - kfree(buf); - return ret; -} - -/* For I2C transactions to the tuner of Friio (dvb_pll). - * - * Friio uses irregular USB encapsulation for tuner i2c transactions: - * write transacions are encapsulated with a different USB 'request' value. - * - * Although all transactions are sent via the demod(tc90522) - * and the demod provides an i2c adapter for them, it cannot be used in Friio - * since it assumes using the same parent adapter with the demod, - * which does not use the request value and uses same one for both read/write. - * So we define a dedicated i2c adapter here. - */ - -static int -friio_i2c_tuner_read(struct dvb_usb_device *d, struct i2c_msg *msg) -{ - struct gl861 *priv; - u8 addr; - - priv = d_to_priv(d); - addr = priv->i2c_client_demod->addr; - return gl861_i2c_read_ex(d, addr, msg->buf, msg->len); -} - -static int -friio_i2c_tuner_write(struct dvb_usb_device *d, struct i2c_msg *msg) -{ - u8 *buf; - int ret; - struct gl861 *priv; - - priv = d_to_priv(d); - - if (msg->len < 1) - return -EINVAL; - - buf = kmalloc(msg->len + 1, GFP_KERNEL); - if (!buf) - return -ENOMEM; - buf[0] = msg->addr << 1; - memcpy(buf + 1, msg->buf, msg->len); - - ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0), - GL861_REQ_I2C_RAW, GL861_WRITE, - priv->i2c_client_demod->addr << (8 + 1), - 0xFE, buf, msg->len + 1, 2000); - kfree(buf); - return ret; -} - -static int friio_tuner_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], - int num) -{ - struct dvb_usb_device *d = i2c_get_adapdata(adap); - int i; - - if (num > 2) - return -EINVAL; - - if (mutex_lock_interruptible(&d->i2c_mutex) < 0) - return -EAGAIN; - - for (i = 0; i < num; i++) { - int ret; - - if (msg[i].flags & I2C_M_RD) - ret = friio_i2c_tuner_read(d, &msg[i]); - else - ret = friio_i2c_tuner_write(d, &msg[i]); - - if (ret < 0) - break; - - usleep_range(1000, 2000); /* avoid I2C errors */ - } - - mutex_unlock(&d->i2c_mutex); - return i; -} - -static struct i2c_algorithm friio_tuner_i2c_algo = { - .master_xfer = friio_tuner_i2c_xfer, - .functionality = gl861_i2c_functionality, -}; /* GPIO control in Friio */ @@ -479,9 +312,11 @@ static int friio_ext_ctl(struct dvb_usb_device *d, /* init/config of gl861 for Friio */ /* NOTE: * This function cannot be moved to friio_init()/dvb_usbv2_init(), - * because the init defined here must be done before any activities like I2C, + * because the init defined here includes a whole device reset, + * it must be run early before any activities like I2C, * but friio_init() is called by dvb-usbv2 after {_frontend, _tuner}_attach(), * where I2C communication is used. + * In addition, this reset is required in reset_resume() as well. * Thus this function is set to be called from _power_ctl(). * * Since it will be called on the early init stage @@ -491,7 +326,7 @@ static int friio_ext_ctl(struct dvb_usb_device *d, static int friio_reset(struct dvb_usb_device *d) { int i, ret; - u8 wbuf[2], rbuf[2]; + u8 wbuf[1], rbuf[2]; static const u8 friio_init_cmds[][2] = { {0x33, 0x08}, {0x37, 0x40}, {0x3a, 0x1f}, {0x3b, 0xff}, @@ -503,16 +338,12 @@ static int friio_reset(struct dvb_usb_device *d) if (ret < 0) return ret; - wbuf[0] = 0x11; - wbuf[1] = 0x02; - ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0); + ret = gl861_short_write(d, 0x00, 0x11, 0x02); if (ret < 0) return ret; usleep_range(2000, 3000); - wbuf[0] = 0x11; - wbuf[1] = 0x00; - ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0); + ret = gl861_short_write(d, 0x00, 0x11, 0x00); if (ret < 0) return ret; @@ -522,14 +353,13 @@ static int friio_reset(struct dvb_usb_device *d) */ usleep_range(1000, 2000); - wbuf[0] = 0x03; - wbuf[1] = 0x80; - ret = gl861_i2c_write_ex(d, 0x09, wbuf, 2); + wbuf[0] = 0x80; + ret = gl861_ctrl_msg(d, CMD_WRITE, 0x09 << 9, 0x03, wbuf, 1); if (ret < 0) return ret; usleep_range(2000, 3000); - ret = gl861_i2c_read_ex(d, 0x09, rbuf, 2); + ret = gl861_ctrl_msg(d, CMD_READ, 0x09 << 9, 0x0100, rbuf, 2); if (ret < 0) return ret; if (rbuf[0] != 0xff || rbuf[1] != 0xff) @@ -537,38 +367,33 @@ static int friio_reset(struct dvb_usb_device *d) usleep_range(1000, 2000); - ret = gl861_i2c_write_ex(d, 0x48, wbuf, 2); + wbuf[0] = 0x80; + ret = gl861_ctrl_msg(d, CMD_WRITE, 0x48 << 9, 0x03, wbuf, 1); if (ret < 0) return ret; usleep_range(2000, 3000); - ret = gl861_i2c_read_ex(d, 0x48, rbuf, 2); + ret = gl861_ctrl_msg(d, CMD_READ, 0x48 << 9, 0x0100, rbuf, 2); if (ret < 0) return ret; if (rbuf[0] != 0xff || rbuf[1] != 0xff) return -ENODEV; - wbuf[0] = 0x30; - wbuf[1] = 0x04; - ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0); + ret = gl861_short_write(d, 0x00, 0x30, 0x04); if (ret < 0) return ret; - wbuf[0] = 0x00; - wbuf[1] = 0x01; - ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0); + ret = gl861_short_write(d, 0x00, 0x00, 0x01); if (ret < 0) return ret; - wbuf[0] = 0x06; - wbuf[1] = 0x0f; - ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0); + ret = gl861_short_write(d, 0x00, 0x06, 0x0f); if (ret < 0) return ret; for (i = 0; i < ARRAY_SIZE(friio_init_cmds); i++) { - ret = gl861_i2c_msg(d, 0x00, (u8 *)friio_init_cmds[i], 2, - NULL, 0); + ret = gl861_short_write(d, 0x00, friio_init_cmds[i][0], + friio_init_cmds[i][1]); if (ret < 0) return ret; } @@ -593,6 +418,7 @@ static int friio_frontend_attach(struct dvb_usb_adapter *adap) struct gl861 *priv; info = &friio_config.demod_info; + cfg = friio_config.demod_cfg; d = adap_to_d(adap); cl = dvb_module_probe("tc90522", info->type, &d->i2c_adap, info->addr, &cfg); @@ -600,17 +426,10 @@ static int friio_frontend_attach(struct dvb_usb_adapter *adap) return -ENODEV; adap->fe[0] = cfg.fe; - /* ignore cfg.tuner_i2c and create new one */ priv = adap_to_priv(adap); priv->i2c_client_demod = cl; - priv->tuner_adap.algo = &friio_tuner_i2c_algo; - priv->tuner_adap.dev.parent = &d->udev->dev; - strscpy(priv->tuner_adap.name, d->name, sizeof(priv->tuner_adap.name)); - strlcat(priv->tuner_adap.name, "-tuner", sizeof(priv->tuner_adap.name)); - priv->demod_sub_i2c = &priv->tuner_adap; - i2c_set_adapdata(&priv->tuner_adap, d); - - return i2c_add_adapter(&priv->tuner_adap); + priv->demod_sub_i2c = cfg.tuner_i2c; + return 0; } static int friio_frontend_detach(struct dvb_usb_adapter *adap) @@ -618,7 +437,6 @@ static int friio_frontend_detach(struct dvb_usb_adapter *adap) struct gl861 *priv; priv = adap_to_priv(adap); - i2c_del_adapter(&priv->tuner_adap); dvb_module_release(priv->i2c_client_demod); return 0; } From patchwork Tue Aug 27 15:01:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akihiro TSUKADA X-Patchwork-Id: 11117133 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 346DB1800 for ; Tue, 27 Aug 2019 15:02:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 12CF12184D for ; Tue, 27 Aug 2019 15:02:32 +0000 (UTC) Authentication-Results: mail.kernel.org; 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[219.203.27.33]) by smtp.googlemail.com with ESMTPSA id p20sm14845699pgj.47.2019.08.27.08.02.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Aug 2019 08:02:29 -0700 (PDT) From: tskd08@gmail.com To: linux-media@vger.kernel.org Cc: crope@iki.fi, sean@mess.org, mchehab@kernel.org, Akihiro Tsukada Subject: [PATCH 2/2] dvb-usb-v2/gl861: remove un-used header file Date: Wed, 28 Aug 2019 00:01:41 +0900 Message-Id: <20190827150141.10240-3-tskd08@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190827150141.10240-1-tskd08@gmail.com> References: <20190827150141.10240-1-tskd08@gmail.com> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Akihiro Tsukada The header contained just internal definitions and they are not used anymore. Signed-off-by: Akihiro Tsukada --- drivers/media/usb/dvb-usb-v2/gl861.c | 2 +- drivers/media/usb/dvb-usb-v2/gl861.h | 14 -------------- 2 files changed, 1 insertion(+), 15 deletions(-) delete mode 100644 drivers/media/usb/dvb-usb-v2/gl861.h diff --git a/drivers/media/usb/dvb-usb-v2/gl861.c b/drivers/media/usb/dvb-usb-v2/gl861.c index 7e5bcf49896..e5dc1fc409f 100644 --- a/drivers/media/usb/dvb-usb-v2/gl861.c +++ b/drivers/media/usb/dvb-usb-v2/gl861.c @@ -5,7 +5,7 @@ */ #include -#include "gl861.h" +#include "dvb_usb.h" #include "zl10353.h" #include "qt1010.h" diff --git a/drivers/media/usb/dvb-usb-v2/gl861.h b/drivers/media/usb/dvb-usb-v2/gl861.h deleted file mode 100644 index 02c00e10748..00000000000 --- a/drivers/media/usb/dvb-usb-v2/gl861.h +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _DVB_USB_GL861_H_ -#define _DVB_USB_GL861_H_ - -#include "dvb_usb.h" - -#define GL861_WRITE 0x40 -#define GL861_READ 0xc0 - -#define GL861_REQ_I2C_WRITE 0x01 -#define GL861_REQ_I2C_READ 0x02 -#define GL861_REQ_I2C_RAW 0x03 - -#endif