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authorMauro Carvalho Chehab <mchehab@osg.samsung.com>2014-12-23 13:48:07 -0200
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-02-02 13:16:01 -0200
commit2b0aac3011bc7a9db27791bed4978554263ef079 (patch)
tree23d391366a7f190d533dddc6d848e2e42a091a7b /drivers/media/pci/cx23885/cx23885-dvb.c
parent05439b1a36935992785c4f28f6693e73820321cb (diff)
[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 <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/pci/cx23885/cx23885-dvb.c')
-rw-r--r--drivers/media/pci/cx23885/cx23885-dvb.c272
1 files 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;