From 2b0aac3011bc7a9db27791bed4978554263ef079 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 23 Dec 2014 13:48:07 -0200 Subject: [PATCH] [media] cx23885: move CI/MAC registration to a separate function As reported by smatch: drivers/media/pci/cx23885/cx23885-dvb.c:2080 dvb_register() Function too hairy. Giving up. This is indeed a too complex function, with lots of stuff inside. Breaking this into two functions makes it a little bit less hairy. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/pci/cx23885/cx23885-dvb.c | 272 ++++++++++++------------ 1 file changed, 135 insertions(+), 137 deletions(-) diff --git a/drivers/media/pci/cx23885/cx23885-dvb.c b/drivers/media/pci/cx23885/cx23885-dvb.c index 351fa952f210..45fbe1e4d2d0 100644 --- a/drivers/media/pci/cx23885/cx23885-dvb.c +++ b/drivers/media/pci/cx23885/cx23885-dvb.c @@ -1069,6 +1069,116 @@ static struct dib7000p_config dib7070p_dib7000p_config = { .hostbus_diversity = 1, }; +static int dvb_register_ci_mac(struct cx23885_tsport *port) +{ + struct cx23885_dev *dev = port->dev; + struct i2c_client *client_ci = NULL; + struct vb2_dvb_frontend *fe0; + + fe0 = vb2_dvb_get_frontend(&port->frontends, 1); + if (!fe0) + return -EINVAL; + + switch (dev->board) { + case CX23885_BOARD_NETUP_DUAL_DVBS2_CI: { + static struct netup_card_info cinfo; + + netup_get_card_info(&dev->i2c_bus[0].i2c_adap, &cinfo); + memcpy(port->frontends.adapter.proposed_mac, + cinfo.port[port->nr - 1].mac, 6); + printk(KERN_INFO "NetUP Dual DVB-S2 CI card port%d MAC=%pM\n", + port->nr, port->frontends.adapter.proposed_mac); + + netup_ci_init(port); + return 0; + } + case CX23885_BOARD_NETUP_DUAL_DVB_T_C_CI_RF: { + struct altera_ci_config netup_ci_cfg = { + .dev = dev,/* magic number to identify*/ + .adapter = &port->frontends.adapter,/* for CI */ + .demux = &fe0->dvb.demux,/* for hw pid filter */ + .fpga_rw = netup_altera_fpga_rw, + }; + + altera_ci_init(&netup_ci_cfg, port->nr); + return 0; + } + case CX23885_BOARD_TEVII_S470: { + u8 eeprom[256]; /* 24C02 i2c eeprom */ + + if (port->nr != 1) + return 0; + + /* Read entire EEPROM */ + dev->i2c_bus[0].i2c_client.addr = 0xa0 >> 1; + tveeprom_read(&dev->i2c_bus[0].i2c_client, eeprom, sizeof(eeprom)); + printk(KERN_INFO "TeVii S470 MAC= %pM\n", eeprom + 0xa0); + memcpy(port->frontends.adapter.proposed_mac, eeprom + 0xa0, 6); + return 0; + } + case CX23885_BOARD_DVBSKY_T9580: + case CX23885_BOARD_DVBSKY_S950: + case CX23885_BOARD_DVBSKY_S952: + case CX23885_BOARD_DVBSKY_T982: { + u8 eeprom[256]; /* 24C02 i2c eeprom */ + + if (port->nr > 2) + return 0; + + /* Read entire EEPROM */ + dev->i2c_bus[0].i2c_client.addr = 0xa0 >> 1; + tveeprom_read(&dev->i2c_bus[0].i2c_client, eeprom, + sizeof(eeprom)); + printk(KERN_INFO "%s port %d MAC address: %pM\n", + cx23885_boards[dev->board].name, port->nr, + eeprom + 0xc0 + (port->nr-1) * 8); + memcpy(port->frontends.adapter.proposed_mac, eeprom + 0xc0 + + (port->nr-1) * 8, 6); + return 0; + } + case CX23885_BOARD_DVBSKY_S950C: + case CX23885_BOARD_DVBSKY_T980C: + case CX23885_BOARD_TT_CT2_4500_CI: { + u8 eeprom[256]; /* 24C02 i2c eeprom */ + struct sp2_config sp2_config; + struct i2c_board_info info; + struct cx23885_i2c *i2c_bus2 = &dev->i2c_bus[1]; + + /* attach CI */ + memset(&sp2_config, 0, sizeof(sp2_config)); + sp2_config.dvb_adap = &port->frontends.adapter; + sp2_config.priv = port; + sp2_config.ci_control = cx23885_sp2_ci_ctrl; + memset(&info, 0, sizeof(struct i2c_board_info)); + strlcpy(info.type, "sp2", I2C_NAME_SIZE); + info.addr = 0x40; + info.platform_data = &sp2_config; + request_module(info.type); + client_ci = i2c_new_device(&i2c_bus2->i2c_adap, &info); + if (client_ci == NULL || client_ci->dev.driver == NULL) + return -ENODEV; + if (!try_module_get(client_ci->dev.driver->owner)) { + i2c_unregister_device(client_ci); + return -ENODEV; + } + port->i2c_client_ci = client_ci; + + if (port->nr != 1) + return 0; + + /* Read entire EEPROM */ + dev->i2c_bus[0].i2c_client.addr = 0xa0 >> 1; + tveeprom_read(&dev->i2c_bus[0].i2c_client, eeprom, + sizeof(eeprom)); + printk(KERN_INFO "%s MAC address: %pM\n", + cx23885_boards[dev->board].name, eeprom + 0xc0); + memcpy(port->frontends.adapter.proposed_mac, eeprom + 0xc0, 6); + return 0; + } + } + return 0; +} + static int dvb_register(struct cx23885_tsport *port) { struct dib7000p_ops dib7000p_ops; @@ -1077,11 +1187,10 @@ static int dvb_register(struct cx23885_tsport *port) struct vb2_dvb_frontend *fe0, *fe1 = NULL; struct si2168_config si2168_config; struct si2157_config si2157_config; - struct sp2_config sp2_config; struct m88ts2022_config m88ts2022_config; struct i2c_board_info info; struct i2c_adapter *adapter; - struct i2c_client *client_demod = NULL, *client_tuner = NULL, *client_ci = NULL; + struct i2c_client *client_demod = NULL, *client_tuner = NULL; const struct m88ds3103_config *p_m88ds3103_config = NULL; int (*p_set_voltage)(struct dvb_frontend *fe, fe_sec_voltage_t voltage) = NULL; int mfe_shared = 0; /* bus not shared by default */ @@ -1812,17 +1921,11 @@ static int dvb_register(struct cx23885_tsport *port) request_module(info.type); client_tuner = i2c_new_device(adapter, &info); if (client_tuner == NULL || - client_tuner->dev.driver == NULL) { - module_put(client_demod->dev.driver->owner); - i2c_unregister_device(client_demod); - port->i2c_client_demod = NULL; + client_tuner->dev.driver == NULL) goto frontend_detach; - } + if (!try_module_get(client_tuner->dev.driver->owner)) { i2c_unregister_device(client_tuner); - module_put(client_demod->dev.driver->owner); - i2c_unregister_device(client_demod); - port->i2c_client_demod = NULL; goto frontend_detach; } port->i2c_client_tuner = client_tuner; @@ -1862,17 +1965,11 @@ static int dvb_register(struct cx23885_tsport *port) info.platform_data = &si2157_config; request_module(info.type); client_tuner = i2c_new_device(adapter, &info); - if (client_tuner == NULL || client_tuner->dev.driver == NULL) { - module_put(client_demod->dev.driver->owner); - i2c_unregister_device(client_demod); - port->i2c_client_demod = NULL; + if (client_tuner == NULL || + client_tuner->dev.driver == NULL) goto frontend_detach; - } if (!try_module_get(client_tuner->dev.driver->owner)) { i2c_unregister_device(client_tuner); - module_put(client_demod->dev.driver->owner); - i2c_unregister_device(client_demod); - port->i2c_client_demod = NULL; goto frontend_detach; } port->i2c_client_tuner = client_tuner; @@ -2006,17 +2103,11 @@ static int dvb_register(struct cx23885_tsport *port) info.platform_data = &si2157_config; request_module(info.type); client_tuner = i2c_new_device(adapter, &info); - if (client_tuner == NULL || client_tuner->dev.driver == NULL) { - module_put(client_demod->dev.driver->owner); - i2c_unregister_device(client_demod); - port->i2c_client_demod = NULL; + if (client_tuner == NULL || + client_tuner->dev.driver == NULL) goto frontend_detach; - } if (!try_module_get(client_tuner->dev.driver->owner)) { i2c_unregister_device(client_tuner); - module_put(client_demod->dev.driver->owner); - i2c_unregister_device(client_demod); - port->i2c_client_demod = NULL; goto frontend_detach; } port->i2c_client_tuner = client_tuner; @@ -2144,122 +2235,29 @@ static int dvb_register(struct cx23885_tsport *port) if (ret) goto frontend_detach; - /* init CI & MAC */ - switch (dev->board) { - case CX23885_BOARD_NETUP_DUAL_DVBS2_CI: { - static struct netup_card_info cinfo; - - netup_get_card_info(&dev->i2c_bus[0].i2c_adap, &cinfo); - memcpy(port->frontends.adapter.proposed_mac, - cinfo.port[port->nr - 1].mac, 6); - printk(KERN_INFO "NetUP Dual DVB-S2 CI card port%d MAC=%pM\n", - port->nr, port->frontends.adapter.proposed_mac); - - netup_ci_init(port); - break; - } - case CX23885_BOARD_NETUP_DUAL_DVB_T_C_CI_RF: { - struct altera_ci_config netup_ci_cfg = { - .dev = dev,/* magic number to identify*/ - .adapter = &port->frontends.adapter,/* for CI */ - .demux = &fe0->dvb.demux,/* for hw pid filter */ - .fpga_rw = netup_altera_fpga_rw, - }; - - altera_ci_init(&netup_ci_cfg, port->nr); - break; - } - case CX23885_BOARD_TEVII_S470: { - u8 eeprom[256]; /* 24C02 i2c eeprom */ - - if (port->nr != 1) - break; - - /* Read entire EEPROM */ - dev->i2c_bus[0].i2c_client.addr = 0xa0 >> 1; - tveeprom_read(&dev->i2c_bus[0].i2c_client, eeprom, sizeof(eeprom)); - printk(KERN_INFO "TeVii S470 MAC= %pM\n", eeprom + 0xa0); - memcpy(port->frontends.adapter.proposed_mac, eeprom + 0xa0, 6); - break; - } - case CX23885_BOARD_DVBSKY_T9580: - case CX23885_BOARD_DVBSKY_S950: - case CX23885_BOARD_DVBSKY_S952: - case CX23885_BOARD_DVBSKY_T982: { - u8 eeprom[256]; /* 24C02 i2c eeprom */ - - if (port->nr > 2) - break; - - /* Read entire EEPROM */ - dev->i2c_bus[0].i2c_client.addr = 0xa0 >> 1; - tveeprom_read(&dev->i2c_bus[0].i2c_client, eeprom, - sizeof(eeprom)); - printk(KERN_INFO "%s port %d MAC address: %pM\n", - cx23885_boards[dev->board].name, port->nr, - eeprom + 0xc0 + (port->nr-1) * 8); - memcpy(port->frontends.adapter.proposed_mac, eeprom + 0xc0 + - (port->nr-1) * 8, 6); - break; - } - case CX23885_BOARD_DVBSKY_S950C: - case CX23885_BOARD_DVBSKY_T980C: - case CX23885_BOARD_TT_CT2_4500_CI: { - u8 eeprom[256]; /* 24C02 i2c eeprom */ - - /* attach CI */ - memset(&sp2_config, 0, sizeof(sp2_config)); - sp2_config.dvb_adap = &port->frontends.adapter; - sp2_config.priv = port; - sp2_config.ci_control = cx23885_sp2_ci_ctrl; - memset(&info, 0, sizeof(struct i2c_board_info)); - strlcpy(info.type, "sp2", I2C_NAME_SIZE); - info.addr = 0x40; - info.platform_data = &sp2_config; - request_module(info.type); - client_ci = i2c_new_device(&i2c_bus2->i2c_adap, &info); - if (client_ci == NULL || client_ci->dev.driver == NULL) { - if (client_tuner) { - module_put(client_tuner->dev.driver->owner); - i2c_unregister_device(client_tuner); - } - if (client_demod) { - module_put(client_demod->dev.driver->owner); - i2c_unregister_device(client_demod); - } - goto frontend_detach; - } - if (!try_module_get(client_ci->dev.driver->owner)) { - i2c_unregister_device(client_ci); - if (client_tuner) { - module_put(client_tuner->dev.driver->owner); - i2c_unregister_device(client_tuner); - } - if (client_demod) { - module_put(client_demod->dev.driver->owner); - i2c_unregister_device(client_demod); - } - goto frontend_detach; - } - port->i2c_client_ci = client_ci; + ret = dvb_register_ci_mac(port); + if (ret) + goto frontend_detach; - if (port->nr != 1) - break; + return 0; - /* Read entire EEPROM */ - dev->i2c_bus[0].i2c_client.addr = 0xa0 >> 1; - tveeprom_read(&dev->i2c_bus[0].i2c_client, eeprom, - sizeof(eeprom)); - printk(KERN_INFO "%s MAC address: %pM\n", - cx23885_boards[dev->board].name, eeprom + 0xc0); - memcpy(port->frontends.adapter.proposed_mac, eeprom + 0xc0, 6); - break; - } +frontend_detach: + /* remove I2C client for tuner */ + client_tuner = port->i2c_client_tuner; + if (client_tuner) { + module_put(client_tuner->dev.driver->owner); + i2c_unregister_device(client_tuner); + port->i2c_client_tuner = NULL; } - return ret; + /* remove I2C client for demodulator */ + client_demod = port->i2c_client_demod; + if (client_demod) { + module_put(client_demod->dev.driver->owner); + i2c_unregister_device(client_demod); + port->i2c_client_demod = NULL; + } -frontend_detach: port->gate_ctrl = NULL; vb2_dvb_dealloc_frontends(&port->frontends); return -EINVAL; -- 2.20.1