From patchwork Mon Dec 11 12:05:02 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 10104855 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 9190C602B3 for ; Mon, 11 Dec 2017 12:05:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 991F429503 for ; Mon, 11 Dec 2017 12:05:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8CFD229563; Mon, 11 Dec 2017 12:05:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CDF6329503 for ; Mon, 11 Dec 2017 12:05:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752407AbdLKMF0 (ORCPT ); Mon, 11 Dec 2017 07:05:26 -0500 Received: from mout.kundenserver.de ([212.227.17.10]:54612 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751281AbdLKMFY (ORCPT ); Mon, 11 Dec 2017 07:05:24 -0500 Received: from wuerfel.lan ([149.172.96.106]) by mrelayeu.kundenserver.de (mreue104 [212.227.15.145]) with ESMTPA (Nemesis) id 0Lgoo2-1erbEP0sK6-00oGpC; Mon, 11 Dec 2017 13:05:19 +0100 From: Arnd Bergmann To: Mauro Carvalho Chehab Cc: Arnd Bergmann , Kevin Cheng , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] em28xx: split up em28xx_dvb_init to reduce stack size Date: Mon, 11 Dec 2017 13:05:02 +0100 Message-Id: <20171211120518.3746850-1-arnd@arndb.de> X-Mailer: git-send-email 2.9.0 X-Provags-ID: V03:K0:VgbNvh3OVSjpzucWSdrfOLpAm+Y8deUp61ufVv/PczX9AmeLX/2 BdyrWxVONrvIzSoWPWKl4VYhKTvpop9V7/0DcmWGC62fwN94XSHRJdpQFIy4qFdOUNnxGzD 1VQWsvsIRif/jLw3nCndRQaS9eTxKBmi7a4VnR9SA3SKmc6i/VfjhvVOb82m0nWVTBwYwow c0zY87Q4sExsYduNXg73g== X-UI-Out-Filterresults: notjunk:1; V01:K0:HMGHtg172Do=:GbLhvESNZ7XZscB33SH4EE Yofs/n+BZ9AGxOCrhCcMkLtAg1thfjvwFbupw52rLSXL8AY1BEohSuOCsftG/CKEncLXAJCQ3 JZIBREmUGAKN2LPSNBkHljSHyTZEZnPy6Nt7mth1XGDkPcexfTnrtcCJXmC4seRVlaLhcFjT6 Y0lwk0GhI5ELGgJlmSwVse2DSrlhlUOeDOLUlRw1I52Ih35xpixacd1IfTP+iUIvk4NsHNWus AMzOeDlwOHUa6iSSSjnLaNvgxisQw6rbyqc8MMrtJ3jLFtDfPTgJ2SY8hCq/aBILyA/W8ZdBl gbE9Dt6YUerUa/sPAL4EZETy0bIX9MCKV41hAVc5uKKcKcnT32LCRzXReA1wQIRXJe1Izx7k4 pm5pdz8qU1/me5yd2xgXOp0xzTM9G8XNpEoPDsIXYJVQVidqZnKR4hzxjPPX2w9fbwkjFHu6J DKoB0t89H7lmxfKL7jhv/tZ4fBpXYtffJ0J8Xo9bpSMCwsv1xbefzmgay1YuDAmFgGBKqsX8R x6yx21/T/4AiFtTsOPTnoP8P9mXFNWDNm7JCmNQr0XUiXtP06K8k1T5LjD7ioHCkzfJqVoqpN uTFks50/iZ6F+2tuPDbMfU+r7O0mAmI1PEaBoXU53XC3Arnn6AoghDh3Ep9Lf+vsOqj2JW6Aw 99TOy9B2UNcI5aKJu/+5ZbUelcyw4sT4hKW1KC9Sz4BgRz6FvbUbuwornLhM75h+wGlV0t2+Y kgQAz6XXsg4CIflujPfgDZoqB6g29LklRsjyCw== Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP With CONFIG_KASAN, the init function uses a large amount of kernel stack: drivers/media/usb/em28xx/em28xx-dvb.c: In function 'em28xx_dvb_init.part.4': drivers/media/usb/em28xx/em28xx-dvb.c:2061:1: error: the frame size of 3232 bytes is larger than 2048 bytes [-Werror=frame-larger-than=] Using gcc-7 with -fsanitize-address-use-after-scope makes this even worse: drivers/media/usb/em28xx/em28xx-dvb.c: In function 'em28xx_dvb_init': drivers/media/usb/em28xx/em28xx-dvb.c:2069:1: error: the frame size of 4280 bytes is larger than 3072 bytes [-Werror=frame-larger-than=] By splitting out each part of the switch/case statement that has its own local variables into a separate function, no single one of them uses more than 500 bytes, and with a noinline_for_stack annotation we can ensure that they are not merged back together. Signed-off-by: Arnd Bergmann --- drivers/media/usb/em28xx/em28xx-dvb.c | 947 ++++++++++++++++++---------------- 1 file changed, 508 insertions(+), 439 deletions(-) diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c index 9950a740e04e..6665885dbaa7 100644 --- a/drivers/media/usb/em28xx/em28xx-dvb.c +++ b/drivers/media/usb/em28xx/em28xx-dvb.c @@ -934,7 +934,7 @@ static struct lgdt3306a_config hauppauge_01595_lgdt3306a_config = { /* ------------------------------------------------------------------ */ -static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev) +static noinline_for_stack int em28xx_attach_xc3028(u8 addr, struct em28xx *dev) { struct dvb_frontend *fe; struct xc2028_config cfg; @@ -1126,6 +1126,492 @@ static void em28xx_unregister_dvb(struct em28xx_dvb *dvb) dvb_unregister_adapter(&dvb->adapter); } +static noinline_for_stack int em28174_dvb_init_pctv_460e(struct em28xx *dev) +{ + struct em28xx_dvb *dvb = dev->dvb; + struct i2c_client *client; + struct i2c_board_info board_info; + struct tda10071_platform_data tda10071_pdata = {}; + struct a8293_platform_data a8293_pdata = {}; + int result; + + /* attach demod + tuner combo */ + tda10071_pdata.clk = 40444000, /* 40.444 MHz */ + tda10071_pdata.i2c_wr_max = 64, + tda10071_pdata.ts_mode = TDA10071_TS_SERIAL, + tda10071_pdata.pll_multiplier = 20, + tda10071_pdata.tuner_i2c_addr = 0x14, + memset(&board_info, 0, sizeof(board_info)); + strlcpy(board_info.type, "tda10071_cx24118", I2C_NAME_SIZE); + board_info.addr = 0x55; + board_info.platform_data = &tda10071_pdata; + request_module("tda10071"); + client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info); + if (client == NULL || client->dev.driver == NULL) { + result = -ENODEV; + goto out_free; + } + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + result = -ENODEV; + goto out_free; + } + dvb->fe[0] = tda10071_pdata.get_dvb_frontend(client); + dvb->i2c_client_demod = client; + + /* attach SEC */ + a8293_pdata.dvb_frontend = dvb->fe[0]; + memset(&board_info, 0, sizeof(board_info)); + strlcpy(board_info.type, "a8293", I2C_NAME_SIZE); + board_info.addr = 0x08; + board_info.platform_data = &a8293_pdata; + request_module("a8293"); + client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info); + if (client == NULL || client->dev.driver == NULL) { + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + dvb->i2c_client_sec = client; + result = 0; +out_free: + return result; +} + +static noinline_for_stack int em28178_dvb_init_pctv_461e(struct em28xx *dev) +{ + struct em28xx_dvb *dvb = dev->dvb; + struct i2c_client *client; + struct i2c_adapter *i2c_adapter; + struct i2c_board_info board_info; + struct m88ds3103_platform_data m88ds3103_pdata = {}; + struct ts2020_config ts2020_config = {}; + struct a8293_platform_data a8293_pdata = {}; + int result; + + /* attach demod */ + m88ds3103_pdata.clk = 27000000; + m88ds3103_pdata.i2c_wr_max = 33; + m88ds3103_pdata.ts_mode = M88DS3103_TS_PARALLEL; + m88ds3103_pdata.ts_clk = 16000; + m88ds3103_pdata.ts_clk_pol = 1; + m88ds3103_pdata.agc = 0x99; + memset(&board_info, 0, sizeof(board_info)); + strlcpy(board_info.type, "m88ds3103", I2C_NAME_SIZE); + board_info.addr = 0x68; + board_info.platform_data = &m88ds3103_pdata; + request_module("m88ds3103"); + client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info); + if (client == NULL || client->dev.driver == NULL) { + result = -ENODEV; + goto out_free; + } + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + result = -ENODEV; + goto out_free; + } + dvb->fe[0] = m88ds3103_pdata.get_dvb_frontend(client); + i2c_adapter = m88ds3103_pdata.get_i2c_adapter(client); + dvb->i2c_client_demod = client; + + /* attach tuner */ + ts2020_config.fe = dvb->fe[0]; + memset(&board_info, 0, sizeof(board_info)); + strlcpy(board_info.type, "ts2022", I2C_NAME_SIZE); + board_info.addr = 0x60; + board_info.platform_data = &ts2020_config; + request_module("ts2020"); + client = i2c_new_device(i2c_adapter, &board_info); + if (client == NULL || client->dev.driver == NULL) { + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + dvb->i2c_client_tuner = client; + /* delegate signal strength measurement to tuner */ + dvb->fe[0]->ops.read_signal_strength = + dvb->fe[0]->ops.tuner_ops.get_rf_strength; + + /* attach SEC */ + a8293_pdata.dvb_frontend = dvb->fe[0]; + memset(&board_info, 0, sizeof(board_info)); + strlcpy(board_info.type, "a8293", I2C_NAME_SIZE); + board_info.addr = 0x08; + board_info.platform_data = &a8293_pdata; + request_module("a8293"); + client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info); + if (client == NULL || client->dev.driver == NULL) { + module_put(dvb->i2c_client_tuner->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_tuner); + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + module_put(dvb->i2c_client_tuner->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_tuner); + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + dvb->i2c_client_sec = client; + result = 0; +out_free: + return result; +} + +static noinline_for_stack int em28178_dvb_init_pctv_292e(struct em28xx *dev) +{ + struct em28xx_dvb *dvb = dev->dvb; + struct i2c_adapter *adapter; + struct i2c_client *client; + struct i2c_board_info info; + struct si2168_config si2168_config; + struct si2157_config si2157_config; + int result; + + /* attach demod */ + memset(&si2168_config, 0, sizeof(si2168_config)); + si2168_config.i2c_adapter = &adapter; + si2168_config.fe = &dvb->fe[0]; + si2168_config.ts_mode = SI2168_TS_PARALLEL; + memset(&info, 0, sizeof(struct i2c_board_info)); + strlcpy(info.type, "si2168", I2C_NAME_SIZE); + info.addr = 0x64; + info.platform_data = &si2168_config; + request_module(info.type); + client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info); + if (client == NULL || client->dev.driver == NULL) { + result = -ENODEV; + goto out_free; + } + + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + result = -ENODEV; + goto out_free; + } + + dvb->i2c_client_demod = client; + + /* attach tuner */ + memset(&si2157_config, 0, sizeof(si2157_config)); + si2157_config.fe = dvb->fe[0]; + si2157_config.if_port = 1; +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + si2157_config.mdev = dev->media_dev; +#endif + memset(&info, 0, sizeof(struct i2c_board_info)); + strlcpy(info.type, "si2157", I2C_NAME_SIZE); + info.addr = 0x60; + info.platform_data = &si2157_config; + request_module(info.type); + client = i2c_new_device(adapter, &info); + if (client == NULL || client->dev.driver == NULL) { + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + + dvb->i2c_client_tuner = client; + dvb->fe[0]->ops.set_lna = em28xx_pctv_292e_set_lna; + result = 0; +out_free: + return result; +} + +static noinline_for_stack int em28178_dvb_init_terratec_t2_stick_hd(struct em28xx *dev) +{ + struct em28xx_dvb *dvb = dev->dvb; + struct i2c_adapter *adapter; + struct i2c_client *client; + struct i2c_board_info info; + struct si2168_config si2168_config; + struct si2157_config si2157_config; + int result; + + /* attach demod */ + memset(&si2168_config, 0, sizeof(si2168_config)); + si2168_config.i2c_adapter = &adapter; + si2168_config.fe = &dvb->fe[0]; + si2168_config.ts_mode = SI2168_TS_PARALLEL; + memset(&info, 0, sizeof(struct i2c_board_info)); + strlcpy(info.type, "si2168", I2C_NAME_SIZE); + info.addr = 0x64; + info.platform_data = &si2168_config; + request_module(info.type); + client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info); + if (client == NULL || client->dev.driver == NULL) { + result = -ENODEV; + goto out_free; + } + + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + result = -ENODEV; + goto out_free; + } + + dvb->i2c_client_demod = client; + + /* attach tuner */ + memset(&si2157_config, 0, sizeof(si2157_config)); + si2157_config.fe = dvb->fe[0]; + si2157_config.if_port = 0; +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + si2157_config.mdev = dev->media_dev; +#endif + memset(&info, 0, sizeof(struct i2c_board_info)); + strlcpy(info.type, "si2146", I2C_NAME_SIZE); + info.addr = 0x60; + info.platform_data = &si2157_config; + request_module("si2157"); + client = i2c_new_device(adapter, &info); + if (client == NULL || client->dev.driver == NULL) { + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + + dvb->i2c_client_tuner = client; + result = 0; +out_free: + return result; +} + +static noinline_for_stack int em28178_dvb_init_plex_px_bcud(struct em28xx *dev) +{ + struct em28xx_dvb *dvb = dev->dvb; + struct i2c_client *client; + struct i2c_board_info info; + struct tc90522_config tc90522_config; + struct qm1d1c0042_config qm1d1c0042_config; + int result; + + /* attach demod */ + memset(&tc90522_config, 0, sizeof(tc90522_config)); + memset(&info, 0, sizeof(struct i2c_board_info)); + strlcpy(info.type, "tc90522sat", I2C_NAME_SIZE); + info.addr = 0x15; + info.platform_data = &tc90522_config; + request_module("tc90522"); + client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info); + if (client == NULL || client->dev.driver == NULL) { + result = -ENODEV; + goto out_free; + } + dvb->i2c_client_demod = client; + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + result = -ENODEV; + goto out_free; + } + + /* attach tuner */ + memset(&qm1d1c0042_config, 0, + sizeof(qm1d1c0042_config)); + qm1d1c0042_config.fe = tc90522_config.fe; + qm1d1c0042_config.lpf = 1; + memset(&info, 0, sizeof(struct i2c_board_info)); + strlcpy(info.type, "qm1d1c0042", I2C_NAME_SIZE); + info.addr = 0x61; + info.platform_data = &qm1d1c0042_config; + request_module(info.type); + client = i2c_new_device(tc90522_config.tuner_i2c, + &info); + if (client == NULL || client->dev.driver == NULL) { + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + dvb->i2c_client_tuner = client; + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + dvb->fe[0] = tc90522_config.fe; + px_bcud_init(dev); + result = 0; +out_free: + return result; +} + +static noinline_for_stack int em28174_dvb_init_hauppauge_wintv_dualhd_dvb(struct em28xx *dev) +{ + struct em28xx_dvb *dvb = dev->dvb; + struct i2c_adapter *adapter; + struct i2c_client *client; + struct i2c_board_info info; + struct si2168_config si2168_config; + struct si2157_config si2157_config; + int result; + + /* attach demod */ + memset(&si2168_config, 0, sizeof(si2168_config)); + si2168_config.i2c_adapter = &adapter; + si2168_config.fe = &dvb->fe[0]; + si2168_config.ts_mode = SI2168_TS_SERIAL; + memset(&info, 0, sizeof(struct i2c_board_info)); + strlcpy(info.type, "si2168", I2C_NAME_SIZE); + info.addr = 0x64; + info.platform_data = &si2168_config; + request_module(info.type); + client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info); + if (client == NULL || client->dev.driver == NULL) { + result = -ENODEV; + goto out_free; + } + + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + result = -ENODEV; + goto out_free; + } + + dvb->i2c_client_demod = client; + + /* attach tuner */ + memset(&si2157_config, 0, sizeof(si2157_config)); + si2157_config.fe = dvb->fe[0]; + si2157_config.if_port = 1; +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + si2157_config.mdev = dev->media_dev; +#endif + memset(&info, 0, sizeof(struct i2c_board_info)); + strlcpy(info.type, "si2157", I2C_NAME_SIZE); + info.addr = 0x60; + info.platform_data = &si2157_config; + request_module(info.type); + client = i2c_new_device(adapter, &info); + if (client == NULL || client->dev.driver == NULL) { + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + + dvb->i2c_client_tuner = client; + result = 0; +out_free: + return result; +} + +static int em28174_dvb_init_hauppauge_wintv_dualhd_01595(struct em28xx *dev) +{ + struct em28xx_dvb *dvb = dev->dvb; + struct i2c_adapter *adapter; + struct i2c_client *client; + struct i2c_board_info info = {}; + struct lgdt3306a_config lgdt3306a_config; + struct si2157_config si2157_config = {}; + int result; + + /* attach demod */ + lgdt3306a_config = hauppauge_01595_lgdt3306a_config; + lgdt3306a_config.fe = &dvb->fe[0]; + lgdt3306a_config.i2c_adapter = &adapter; + strlcpy(info.type, "lgdt3306a", sizeof(info.type)); + info.addr = 0x59; + info.platform_data = &lgdt3306a_config; + request_module(info.type); + client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], + &info); + if (client == NULL || client->dev.driver == NULL) { + result = -ENODEV; + goto out_free; + } + + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + result = -ENODEV; + goto out_free; + } + + dvb->i2c_client_demod = client; + + /* attach tuner */ + si2157_config.fe = dvb->fe[0]; + si2157_config.if_port = 1; + si2157_config.inversion = 1; +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + si2157_config.mdev = dev->media_dev; +#endif + memset(&info, 0, sizeof(struct i2c_board_info)); + strlcpy(info.type, "si2157", sizeof(info.type)); + info.addr = 0x60; + info.platform_data = &si2157_config; + request_module(info.type); + + client = i2c_new_device(adapter, &info); + if (client == NULL || client->dev.driver == NULL) { + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + module_put(dvb->i2c_client_demod->dev.driver->owner); + i2c_unregister_device(dvb->i2c_client_demod); + result = -ENODEV; + goto out_free; + } + + dvb->i2c_client_tuner = client; + result = 0; +out_free: + return result; +} static int em28xx_dvb_init(struct em28xx *dev) { int result = 0; @@ -1427,60 +1913,11 @@ static int em28xx_dvb_init(struct em28xx *dev) &dev->i2c_adap[dev->def_i2c_bus], &c3tech_duo_tda18271_config); break; - case EM28174_BOARD_PCTV_460E: { - struct i2c_client *client; - struct i2c_board_info board_info; - struct tda10071_platform_data tda10071_pdata = {}; - struct a8293_platform_data a8293_pdata = {}; - - /* attach demod + tuner combo */ - tda10071_pdata.clk = 40444000, /* 40.444 MHz */ - tda10071_pdata.i2c_wr_max = 64, - tda10071_pdata.ts_mode = TDA10071_TS_SERIAL, - tda10071_pdata.pll_multiplier = 20, - tda10071_pdata.tuner_i2c_addr = 0x14, - memset(&board_info, 0, sizeof(board_info)); - strlcpy(board_info.type, "tda10071_cx24118", I2C_NAME_SIZE); - board_info.addr = 0x55; - board_info.platform_data = &tda10071_pdata; - request_module("tda10071"); - client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info); - if (client == NULL || client->dev.driver == NULL) { - result = -ENODEV; - goto out_free; - } - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - result = -ENODEV; - goto out_free; - } - dvb->fe[0] = tda10071_pdata.get_dvb_frontend(client); - dvb->i2c_client_demod = client; - - /* attach SEC */ - a8293_pdata.dvb_frontend = dvb->fe[0]; - memset(&board_info, 0, sizeof(board_info)); - strlcpy(board_info.type, "a8293", I2C_NAME_SIZE); - board_info.addr = 0x08; - board_info.platform_data = &a8293_pdata; - request_module("a8293"); - client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info); - if (client == NULL || client->dev.driver == NULL) { - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; + case EM28174_BOARD_PCTV_460E: + result = em28174_dvb_init_pctv_460e(dev); + if (result) goto out_free; - } - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - dvb->i2c_client_sec = client; break; - } case EM2874_BOARD_DELOCK_61959: case EM2874_BOARD_MAXMEDIA_UB425_TC: /* attach demodulator */ @@ -1627,403 +2064,35 @@ static int em28xx_dvb_init(struct em28xx *dev) } } break; - case EM28178_BOARD_PCTV_461E: { - struct i2c_client *client; - struct i2c_adapter *i2c_adapter; - struct i2c_board_info board_info; - struct m88ds3103_platform_data m88ds3103_pdata = {}; - struct ts2020_config ts2020_config = {}; - struct a8293_platform_data a8293_pdata = {}; - - /* attach demod */ - m88ds3103_pdata.clk = 27000000; - m88ds3103_pdata.i2c_wr_max = 33; - m88ds3103_pdata.ts_mode = M88DS3103_TS_PARALLEL; - m88ds3103_pdata.ts_clk = 16000; - m88ds3103_pdata.ts_clk_pol = 1; - m88ds3103_pdata.agc = 0x99; - memset(&board_info, 0, sizeof(board_info)); - strlcpy(board_info.type, "m88ds3103", I2C_NAME_SIZE); - board_info.addr = 0x68; - board_info.platform_data = &m88ds3103_pdata; - request_module("m88ds3103"); - client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info); - if (client == NULL || client->dev.driver == NULL) { - result = -ENODEV; + case EM28178_BOARD_PCTV_461E: + result = em28178_dvb_init_pctv_461e(dev); + if (result) goto out_free; - } - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - result = -ENODEV; - goto out_free; - } - dvb->fe[0] = m88ds3103_pdata.get_dvb_frontend(client); - i2c_adapter = m88ds3103_pdata.get_i2c_adapter(client); - dvb->i2c_client_demod = client; - - /* attach tuner */ - ts2020_config.fe = dvb->fe[0]; - memset(&board_info, 0, sizeof(board_info)); - strlcpy(board_info.type, "ts2022", I2C_NAME_SIZE); - board_info.addr = 0x60; - board_info.platform_data = &ts2020_config; - request_module("ts2020"); - client = i2c_new_device(i2c_adapter, &board_info); - if (client == NULL || client->dev.driver == NULL) { - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - dvb->i2c_client_tuner = client; - /* delegate signal strength measurement to tuner */ - dvb->fe[0]->ops.read_signal_strength = - dvb->fe[0]->ops.tuner_ops.get_rf_strength; - - /* attach SEC */ - a8293_pdata.dvb_frontend = dvb->fe[0]; - memset(&board_info, 0, sizeof(board_info)); - strlcpy(board_info.type, "a8293", I2C_NAME_SIZE); - board_info.addr = 0x08; - board_info.platform_data = &a8293_pdata; - request_module("a8293"); - client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info); - if (client == NULL || client->dev.driver == NULL) { - module_put(dvb->i2c_client_tuner->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_tuner); - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - module_put(dvb->i2c_client_tuner->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_tuner); - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - dvb->i2c_client_sec = client; break; - } case EM28178_BOARD_PCTV_292E: - { - struct i2c_adapter *adapter; - struct i2c_client *client; - struct i2c_board_info info; - struct si2168_config si2168_config; - struct si2157_config si2157_config; - - /* attach demod */ - memset(&si2168_config, 0, sizeof(si2168_config)); - si2168_config.i2c_adapter = &adapter; - si2168_config.fe = &dvb->fe[0]; - si2168_config.ts_mode = SI2168_TS_PARALLEL; - memset(&info, 0, sizeof(struct i2c_board_info)); - strlcpy(info.type, "si2168", I2C_NAME_SIZE); - info.addr = 0x64; - info.platform_data = &si2168_config; - request_module(info.type); - client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info); - if (client == NULL || client->dev.driver == NULL) { - result = -ENODEV; - goto out_free; - } - - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - result = -ENODEV; - goto out_free; - } - - dvb->i2c_client_demod = client; - - /* attach tuner */ - memset(&si2157_config, 0, sizeof(si2157_config)); - si2157_config.fe = dvb->fe[0]; - si2157_config.if_port = 1; -#ifdef CONFIG_MEDIA_CONTROLLER_DVB - si2157_config.mdev = dev->media_dev; -#endif - memset(&info, 0, sizeof(struct i2c_board_info)); - strlcpy(info.type, "si2157", I2C_NAME_SIZE); - info.addr = 0x60; - info.platform_data = &si2157_config; - request_module(info.type); - client = i2c_new_device(adapter, &info); - if (client == NULL || client->dev.driver == NULL) { - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - - dvb->i2c_client_tuner = client; - dvb->fe[0]->ops.set_lna = em28xx_pctv_292e_set_lna; - } + result = em28178_dvb_init_pctv_292e(dev); + if (result) + goto out_free; break; case EM28178_BOARD_TERRATEC_T2_STICK_HD: - { - struct i2c_adapter *adapter; - struct i2c_client *client; - struct i2c_board_info info; - struct si2168_config si2168_config; - struct si2157_config si2157_config; - - /* attach demod */ - memset(&si2168_config, 0, sizeof(si2168_config)); - si2168_config.i2c_adapter = &adapter; - si2168_config.fe = &dvb->fe[0]; - si2168_config.ts_mode = SI2168_TS_PARALLEL; - memset(&info, 0, sizeof(struct i2c_board_info)); - strlcpy(info.type, "si2168", I2C_NAME_SIZE); - info.addr = 0x64; - info.platform_data = &si2168_config; - request_module(info.type); - client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info); - if (client == NULL || client->dev.driver == NULL) { - result = -ENODEV; - goto out_free; - } - - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - result = -ENODEV; - goto out_free; - } - - dvb->i2c_client_demod = client; - - /* attach tuner */ - memset(&si2157_config, 0, sizeof(si2157_config)); - si2157_config.fe = dvb->fe[0]; - si2157_config.if_port = 0; -#ifdef CONFIG_MEDIA_CONTROLLER_DVB - si2157_config.mdev = dev->media_dev; -#endif - memset(&info, 0, sizeof(struct i2c_board_info)); - strlcpy(info.type, "si2146", I2C_NAME_SIZE); - info.addr = 0x60; - info.platform_data = &si2157_config; - request_module("si2157"); - client = i2c_new_device(adapter, &info); - if (client == NULL || client->dev.driver == NULL) { - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - - dvb->i2c_client_tuner = client; - } + result = em28178_dvb_init_terratec_t2_stick_hd(dev); + if (result) + goto out_free; break; - case EM28178_BOARD_PLEX_PX_BCUD: - { - struct i2c_client *client; - struct i2c_board_info info; - struct tc90522_config tc90522_config; - struct qm1d1c0042_config qm1d1c0042_config; - - /* attach demod */ - memset(&tc90522_config, 0, sizeof(tc90522_config)); - memset(&info, 0, sizeof(struct i2c_board_info)); - strlcpy(info.type, "tc90522sat", I2C_NAME_SIZE); - info.addr = 0x15; - info.platform_data = &tc90522_config; - request_module("tc90522"); - client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info); - if (client == NULL || client->dev.driver == NULL) { - result = -ENODEV; - goto out_free; - } - dvb->i2c_client_demod = client; - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - result = -ENODEV; - goto out_free; - } - - /* attach tuner */ - memset(&qm1d1c0042_config, 0, - sizeof(qm1d1c0042_config)); - qm1d1c0042_config.fe = tc90522_config.fe; - qm1d1c0042_config.lpf = 1; - memset(&info, 0, sizeof(struct i2c_board_info)); - strlcpy(info.type, "qm1d1c0042", I2C_NAME_SIZE); - info.addr = 0x61; - info.platform_data = &qm1d1c0042_config; - request_module(info.type); - client = i2c_new_device(tc90522_config.tuner_i2c, - &info); - if (client == NULL || client->dev.driver == NULL) { - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - dvb->i2c_client_tuner = client; - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - dvb->fe[0] = tc90522_config.fe; - px_bcud_init(dev); - } + result = em28178_dvb_init_plex_px_bcud(dev); + if (result) + goto out_free; break; case EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB: - { - struct i2c_adapter *adapter; - struct i2c_client *client; - struct i2c_board_info info; - struct si2168_config si2168_config; - struct si2157_config si2157_config; - - /* attach demod */ - memset(&si2168_config, 0, sizeof(si2168_config)); - si2168_config.i2c_adapter = &adapter; - si2168_config.fe = &dvb->fe[0]; - si2168_config.ts_mode = SI2168_TS_SERIAL; - memset(&info, 0, sizeof(struct i2c_board_info)); - strlcpy(info.type, "si2168", I2C_NAME_SIZE); - info.addr = 0x64; - info.platform_data = &si2168_config; - request_module(info.type); - client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info); - if (client == NULL || client->dev.driver == NULL) { - result = -ENODEV; - goto out_free; - } - - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - result = -ENODEV; - goto out_free; - } - - dvb->i2c_client_demod = client; - - /* attach tuner */ - memset(&si2157_config, 0, sizeof(si2157_config)); - si2157_config.fe = dvb->fe[0]; - si2157_config.if_port = 1; -#ifdef CONFIG_MEDIA_CONTROLLER_DVB - si2157_config.mdev = dev->media_dev; -#endif - memset(&info, 0, sizeof(struct i2c_board_info)); - strlcpy(info.type, "si2157", I2C_NAME_SIZE); - info.addr = 0x60; - info.platform_data = &si2157_config; - request_module(info.type); - client = i2c_new_device(adapter, &info); - if (client == NULL || client->dev.driver == NULL) { - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - - dvb->i2c_client_tuner = client; - - } + result = em28174_dvb_init_hauppauge_wintv_dualhd_dvb(dev); + if (result) + goto out_free; break; case EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_01595: - { - struct i2c_adapter *adapter; - struct i2c_client *client; - struct i2c_board_info info = {}; - struct lgdt3306a_config lgdt3306a_config; - struct si2157_config si2157_config = {}; - - /* attach demod */ - lgdt3306a_config = hauppauge_01595_lgdt3306a_config; - lgdt3306a_config.fe = &dvb->fe[0]; - lgdt3306a_config.i2c_adapter = &adapter; - strlcpy(info.type, "lgdt3306a", sizeof(info.type)); - info.addr = 0x59; - info.platform_data = &lgdt3306a_config; - request_module(info.type); - client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], - &info); - if (client == NULL || client->dev.driver == NULL) { - result = -ENODEV; - goto out_free; - } - - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - result = -ENODEV; - goto out_free; - } - - dvb->i2c_client_demod = client; - - /* attach tuner */ - si2157_config.fe = dvb->fe[0]; - si2157_config.if_port = 1; - si2157_config.inversion = 1; -#ifdef CONFIG_MEDIA_CONTROLLER_DVB - si2157_config.mdev = dev->media_dev; -#endif - memset(&info, 0, sizeof(struct i2c_board_info)); - strlcpy(info.type, "si2157", sizeof(info.type)); - info.addr = 0x60; - info.platform_data = &si2157_config; - request_module(info.type); - - client = i2c_new_device(adapter, &info); - if (client == NULL || client->dev.driver == NULL) { - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - if (!try_module_get(client->dev.driver->owner)) { - i2c_unregister_device(client); - module_put(dvb->i2c_client_demod->dev.driver->owner); - i2c_unregister_device(dvb->i2c_client_demod); - result = -ENODEV; - goto out_free; - } - - dvb->i2c_client_tuner = client; - } + result = em28174_dvb_init_hauppauge_wintv_dualhd_01595(dev); + if (result) + goto out_free; break; default: dev_err(&dev->intf->dev,