From: Antti Palosaari Date: Mon, 4 Aug 2014 00:47:10 +0000 (-0300) Subject: [media] anysee: convert tda18212 tuner to I2C client X-Git-Tag: v3.18-rc1~101^2^2~150 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=f80f2ae2135966dcd21020dcdca066d3fe5f06df;p=~emulex%2Finfiniband.git [media] anysee: convert tda18212 tuner to I2C client Used tda18212 tuner is implemented as I2C driver. Implement I2C client to anysee and use it for tda18212. Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/usb/dvb-usb-v2/anysee.c b/drivers/media/usb/dvb-usb-v2/anysee.c index e4a2382196f..d3c5f230e97 100644 --- a/drivers/media/usb/dvb-usb-v2/anysee.c +++ b/drivers/media/usb/dvb-usb-v2/anysee.c @@ -332,7 +332,6 @@ static struct tda10023_config anysee_tda10023_tda18212_config = { }; static struct tda18212_config anysee_tda18212_config = { - .i2c_address = (0xc0 >> 1), .if_dvbt_6 = 4150, .if_dvbt_7 = 4150, .if_dvbt_8 = 4150, @@ -340,7 +339,6 @@ static struct tda18212_config anysee_tda18212_config = { }; static struct tda18212_config anysee_tda18212_config2 = { - .i2c_address = 0x60 /* (0xc0 >> 1) */, .if_dvbt_6 = 3550, .if_dvbt_7 = 3700, .if_dvbt_8 = 4150, @@ -632,6 +630,92 @@ error: return ret; } +static int anysee_add_i2c_dev(struct dvb_usb_device *d, char *type, u8 addr, + void *platform_data) +{ + int ret, num; + struct anysee_state *state = d_to_priv(d); + struct i2c_client *client; + struct i2c_adapter *adapter = &d->i2c_adap; + struct i2c_board_info board_info = { + .addr = addr, + .platform_data = platform_data, + }; + + strlcpy(board_info.type, type, I2C_NAME_SIZE); + + /* find first free client */ + for (num = 0; num < ANYSEE_I2C_CLIENT_MAX; num++) { + if (state->i2c_client[num] == NULL) + break; + } + + dev_dbg(&d->udev->dev, "%s: num=%d\n", __func__, num); + + if (num == ANYSEE_I2C_CLIENT_MAX) { + dev_err(&d->udev->dev, "%s: I2C client out of index\n", + KBUILD_MODNAME); + ret = -ENODEV; + goto err; + } + + request_module(board_info.type); + + /* register I2C device */ + client = i2c_new_device(adapter, &board_info); + if (client == NULL || client->dev.driver == NULL) { + ret = -ENODEV; + goto err; + } + + /* increase I2C driver usage count */ + if (!try_module_get(client->dev.driver->owner)) { + i2c_unregister_device(client); + ret = -ENODEV; + goto err; + } + + state->i2c_client[num] = client; + return 0; +err: + dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static void anysee_del_i2c_dev(struct dvb_usb_device *d) +{ + int num; + struct anysee_state *state = d_to_priv(d); + struct i2c_client *client; + + /* find last used client */ + num = ANYSEE_I2C_CLIENT_MAX; + while (num--) { + if (state->i2c_client[num] != NULL) + break; + } + + dev_dbg(&d->udev->dev, "%s: num=%d\n", __func__, num); + + if (num == -1) { + dev_err(&d->udev->dev, "%s: I2C client out of index\n", + KBUILD_MODNAME); + goto err; + } + + client = state->i2c_client[num]; + + /* decrease I2C driver usage count */ + module_put(client->dev.driver->owner); + + /* unregister I2C device */ + i2c_unregister_device(client); + + state->i2c_client[num] = NULL; +err: + dev_dbg(&d->udev->dev, "%s: failed\n", __func__); +} + static int anysee_frontend_attach(struct dvb_usb_adapter *adap) { struct anysee_state *state = adap_to_priv(adap); @@ -640,12 +724,12 @@ static int anysee_frontend_attach(struct dvb_usb_adapter *adap) u8 tmp; struct i2c_msg msg[2] = { { - .addr = anysee_tda18212_config.i2c_address, + .addr = 0x60, .flags = 0, .len = 1, .buf = "\x00", }, { - .addr = anysee_tda18212_config.i2c_address, + .addr = 0x60, .flags = I2C_M_RD, .len = 1, .buf = &tmp, @@ -723,9 +807,11 @@ static int anysee_frontend_attach(struct dvb_usb_adapter *adap) /* probe TDA18212 */ tmp = 0; ret = i2c_transfer(&d->i2c_adap, msg, 2); - if (ret == 2 && tmp == 0xc7) + if (ret == 2 && tmp == 0xc7) { dev_dbg(&d->udev->dev, "%s: TDA18212 found\n", __func__); + state->has_tda18212 = true; + } else tmp = 0; @@ -939,46 +1025,63 @@ static int anysee_tuner_attach(struct dvb_usb_adapter *adap) * fails attach old simple PLL. */ /* attach tuner */ - fe = dvb_attach(tda18212_attach, adap->fe[0], &d->i2c_adap, - &anysee_tda18212_config); + if (state->has_tda18212) { + struct tda18212_config tda18212_config = + anysee_tda18212_config; - if (fe && adap->fe[1]) { - /* attach tuner for 2nd FE */ - fe = dvb_attach(tda18212_attach, adap->fe[1], - &d->i2c_adap, &anysee_tda18212_config); - break; - } else if (fe) { - break; - } - - /* attach tuner */ - fe = dvb_attach(dvb_pll_attach, adap->fe[0], (0xc0 >> 1), - &d->i2c_adap, DVB_PLL_SAMSUNG_DTOS403IH102A); + tda18212_config.fe = adap->fe[0]; + ret = anysee_add_i2c_dev(d, "tda18212", 0x60, + &tda18212_config); + if (ret) + goto err; + + /* copy tuner ops for 2nd FE as tuner is shared */ + if (adap->fe[1]) { + adap->fe[1]->tuner_priv = + adap->fe[0]->tuner_priv; + memcpy(&adap->fe[1]->ops.tuner_ops, + &adap->fe[0]->ops.tuner_ops, + sizeof(struct dvb_tuner_ops)); + } - if (fe && adap->fe[1]) { - /* attach tuner for 2nd FE */ - fe = dvb_attach(dvb_pll_attach, adap->fe[1], + return 0; + } else { + /* attach tuner */ + fe = dvb_attach(dvb_pll_attach, adap->fe[0], (0xc0 >> 1), &d->i2c_adap, DVB_PLL_SAMSUNG_DTOS403IH102A); + + if (fe && adap->fe[1]) { + /* attach tuner for 2nd FE */ + fe = dvb_attach(dvb_pll_attach, adap->fe[1], + (0xc0 >> 1), &d->i2c_adap, + DVB_PLL_SAMSUNG_DTOS403IH102A); + } } break; case ANYSEE_HW_508TC: /* 18 */ case ANYSEE_HW_508PTC: /* 21 */ + { /* E7 TC */ /* E7 PTC */ + struct tda18212_config tda18212_config = anysee_tda18212_config; - /* attach tuner */ - fe = dvb_attach(tda18212_attach, adap->fe[0], &d->i2c_adap, - &anysee_tda18212_config); - - if (fe) { - /* attach tuner for 2nd FE */ - fe = dvb_attach(tda18212_attach, adap->fe[1], - &d->i2c_adap, &anysee_tda18212_config); + tda18212_config.fe = adap->fe[0]; + ret = anysee_add_i2c_dev(d, "tda18212", 0x60, &tda18212_config); + if (ret) + goto err; + + /* copy tuner ops for 2nd FE as tuner is shared */ + if (adap->fe[1]) { + adap->fe[1]->tuner_priv = adap->fe[0]->tuner_priv; + memcpy(&adap->fe[1]->ops.tuner_ops, + &adap->fe[0]->ops.tuner_ops, + sizeof(struct dvb_tuner_ops)); } - break; + return 0; + } case ANYSEE_HW_508S2: /* 19 */ case ANYSEE_HW_508PS2: /* 22 */ /* E7 S2 */ @@ -997,13 +1100,18 @@ static int anysee_tuner_attach(struct dvb_usb_adapter *adap) break; case ANYSEE_HW_508T2C: /* 20 */ + { /* E7 T2C */ + struct tda18212_config tda18212_config = + anysee_tda18212_config2; - /* attach tuner */ - fe = dvb_attach(tda18212_attach, adap->fe[0], &d->i2c_adap, - &anysee_tda18212_config2); + tda18212_config.fe = adap->fe[0]; + ret = anysee_add_i2c_dev(d, "tda18212", 0x60, &tda18212_config); + if (ret) + goto err; - break; + return 0; + } default: fe = NULL; } @@ -1012,7 +1120,7 @@ static int anysee_tuner_attach(struct dvb_usb_adapter *adap) ret = 0; else ret = -ENODEV; - +err: return ret; } @@ -1270,6 +1378,11 @@ static int anysee_init(struct dvb_usb_device *d) static void anysee_exit(struct dvb_usb_device *d) { + struct anysee_state *state = d_to_priv(d); + + if (state->i2c_client[0]) + anysee_del_i2c_dev(d); + return anysee_ci_release(d); } diff --git a/drivers/media/usb/dvb-usb-v2/anysee.h b/drivers/media/usb/dvb-usb-v2/anysee.h index 8f426d9fc6e..3ca2bca4eba 100644 --- a/drivers/media/usb/dvb-usb-v2/anysee.h +++ b/drivers/media/usb/dvb-usb-v2/anysee.h @@ -55,8 +55,11 @@ struct anysee_state { u8 buf[64]; u8 seq; u8 hw; /* PCB ID */ + #define ANYSEE_I2C_CLIENT_MAX 1 + struct i2c_client *i2c_client[ANYSEE_I2C_CLIENT_MAX]; u8 fe_id:1; /* frondend ID */ u8 has_ci:1; + u8 has_tda18212:1; u8 ci_attached:1; struct dvb_ca_en50221 ci; unsigned long ci_cam_ready; /* jiffies */