diff options
Diffstat (limited to 'drivers/media/dvb/frontends')
| -rw-r--r-- | drivers/media/dvb/frontends/Kconfig | 22 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/Makefile | 5 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/au8522_common.c | 258 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/au8522_dig.c | 215 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/au8522_priv.h | 2 |
5 files changed, 281 insertions, 221 deletions
diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig index e11adb6..f479834 100644 --- a/drivers/media/dvb/frontends/Kconfig +++ b/drivers/media/dvb/frontends/Kconfig @@ -540,12 +540,26 @@ config DVB_S5H1409 to support this frontend. config DVB_AU8522 - tristate "Auvitek AU8522 based" - depends on DVB_CORE && I2C && VIDEO_V4L2 + depends on I2C + tristate + +config DVB_AU8522_DTV + tristate "Auvitek AU8522 based DTV demod" + depends on DVB_CORE && I2C + select DVB_AU8522 default m if DVB_FE_CUSTOMISE help - An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want - to support this frontend. + An ATSC 8VSB, QAM64/256 & NTSC demodulator module. Say Y when + you want to enable DTV demodulation support for this frontend. + +config DVB_AU8522_V4L + tristate "Auvitek AU8522 based ATV demod" + depends on VIDEO_V4L2 && I2C + select DVB_AU8522 + default m if DVB_FE_CUSTOMISE + help + An ATSC 8VSB, QAM64/256 & NTSC demodulator module. Say Y when + you want to enable ATV demodulation support for this frontend. config DVB_S5H1411 tristate "Samsung S5H1411 based" diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile index 6ca7557..b0381dc 100644 --- a/drivers/media/dvb/frontends/Makefile +++ b/drivers/media/dvb/frontends/Makefile @@ -7,7 +7,6 @@ ccflags-y += -I$(srctree)/drivers/media/common/tuners/ stb0899-objs = stb0899_drv.o stb0899_algo.o stv0900-objs = stv0900_core.o stv0900_sw.o -au8522-objs = au8522_dig.o au8522_decoder.o drxd-objs = drxd_firm.o drxd_hard.o cxd2820r-objs = cxd2820r_core.o cxd2820r_c.o cxd2820r_t.o cxd2820r_t2.o drxk-objs := drxk_hard.o @@ -63,7 +62,9 @@ obj-$(CONFIG_DVB_TUNER_DIB0090) += dib0090.o obj-$(CONFIG_DVB_TUA6100) += tua6100.o obj-$(CONFIG_DVB_S5H1409) += s5h1409.o obj-$(CONFIG_DVB_TUNER_ITD1000) += itd1000.o -obj-$(CONFIG_DVB_AU8522) += au8522.o +obj-$(CONFIG_DVB_AU8522) += au8522_common.o +obj-$(CONFIG_DVB_AU8522_DTV) += au8522_dig.o +obj-$(CONFIG_DVB_AU8522_V4L) += au8522_decoder.o obj-$(CONFIG_DVB_TDA10048) += tda10048.o obj-$(CONFIG_DVB_TUNER_CX24113) += cx24113.o obj-$(CONFIG_DVB_S5H1411) += s5h1411.o diff --git a/drivers/media/dvb/frontends/au8522_common.c b/drivers/media/dvb/frontends/au8522_common.c new file mode 100644 index 0000000..befdff9 --- /dev/null +++ b/drivers/media/dvb/frontends/au8522_common.c @@ -0,0 +1,258 @@ +/* + Auvitek AU8522 QAM/8VSB demodulator driver + + Copyright (C) 2008 Steven Toth <stoth@linuxtv.org> + Copyright (C) 2008 Devin Heitmueller <dheitmueller@linuxtv.org> + Copyright (C) 2005-2008 Auvitek International, Ltd. + Copyright (C) 2012 Michael Krufky <mkrufky@linuxtv.org> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#include <linux/i2c.h> +#include "dvb_frontend.h" +#include "au8522_priv.h" + +static int debug; + +#define dprintk(arg...)\ + do { if (debug)\ + printk(arg);\ + } while (0) + +/* Despite the name "hybrid_tuner", the framework works just as well for + hybrid demodulators as well... */ +static LIST_HEAD(hybrid_tuner_instance_list); +static DEFINE_MUTEX(au8522_list_mutex); + +/* 16 bit registers, 8 bit values */ +int au8522_writereg(struct au8522_state *state, u16 reg, u8 data) +{ + int ret; + u8 buf[] = { (reg >> 8) | 0x80, reg & 0xff, data }; + + struct i2c_msg msg = { .addr = state->config->demod_address, + .flags = 0, .buf = buf, .len = 3 }; + + ret = i2c_transfer(state->i2c, &msg, 1); + + if (ret != 1) + printk("%s: writereg error (reg == 0x%02x, val == 0x%04x, " + "ret == %i)\n", __func__, reg, data, ret); + + return (ret != 1) ? -1 : 0; +} +EXPORT_SYMBOL(au8522_writereg); + +u8 au8522_readreg(struct au8522_state *state, u16 reg) +{ + int ret; + u8 b0[] = { (reg >> 8) | 0x40, reg & 0xff }; + u8 b1[] = { 0 }; + + struct i2c_msg msg[] = { + { .addr = state->config->demod_address, .flags = 0, + .buf = b0, .len = 2 }, + { .addr = state->config->demod_address, .flags = I2C_M_RD, + .buf = b1, .len = 1 } }; + + ret = i2c_transfer(state->i2c, msg, 2); + + if (ret != 2) + printk(KERN_ERR "%s: readreg error (ret == %i)\n", + __func__, ret); + return b1[0]; +} +EXPORT_SYMBOL(au8522_readreg); + +int au8522_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) +{ + struct au8522_state *state = fe->demodulator_priv; + + dprintk("%s(%d)\n", __func__, enable); + + if (state->operational_mode == AU8522_ANALOG_MODE) { + /* We're being asked to manage the gate even though we're + not in digital mode. This can occur if we get switched + over to analog mode before the dvb_frontend kernel thread + has completely shutdown */ + return 0; + } + + if (enable) + return au8522_writereg(state, 0x106, 1); + else + return au8522_writereg(state, 0x106, 0); +} +EXPORT_SYMBOL(au8522_i2c_gate_ctrl); + +/* Reset the demod hardware and reset all of the configuration registers + to a default state. */ +int au8522_get_state(struct au8522_state **state, struct i2c_adapter *i2c, + u8 client_address) +{ + int ret; + + mutex_lock(&au8522_list_mutex); + ret = hybrid_tuner_request_state(struct au8522_state, (*state), + hybrid_tuner_instance_list, + i2c, client_address, "au8522"); + mutex_unlock(&au8522_list_mutex); + + return ret; +} +EXPORT_SYMBOL(au8522_get_state); + +void au8522_release_state(struct au8522_state *state) +{ + mutex_lock(&au8522_list_mutex); + if (state != NULL) + hybrid_tuner_release_state(state); + mutex_unlock(&au8522_list_mutex); +} +EXPORT_SYMBOL(au8522_release_state); + +int au8522_led_gpio_enable(struct au8522_state *state, int onoff) +{ + struct au8522_led_config *led_config = state->config->led_cfg; + u8 val; + + /* bail out if we can't control an LED */ + if (!led_config || !led_config->gpio_output || + !led_config->gpio_output_enable || !led_config->gpio_output_disable) + return 0; + + val = au8522_readreg(state, 0x4000 | + (led_config->gpio_output & ~0xc000)); + if (onoff) { + /* enable GPIO output */ + val &= ~((led_config->gpio_output_enable >> 8) & 0xff); + val |= (led_config->gpio_output_enable & 0xff); + } else { + /* disable GPIO output */ + val &= ~((led_config->gpio_output_disable >> 8) & 0xff); + val |= (led_config->gpio_output_disable & 0xff); + } + return au8522_writereg(state, 0x8000 | + (led_config->gpio_output & ~0xc000), val); +} +EXPORT_SYMBOL(au8522_led_gpio_enable); + +/* led = 0 | off + * led = 1 | signal ok + * led = 2 | signal strong + * led < 0 | only light led if leds are currently off + */ +int au8522_led_ctrl(struct au8522_state *state, int led) +{ + struct au8522_led_config *led_config = state->config->led_cfg; + int i, ret = 0; + + /* bail out if we can't control an LED */ + if (!led_config || !led_config->gpio_leds || + !led_config->num_led_states || !led_config->led_states) + return 0; + + if (led < 0) { + /* if LED is already lit, then leave it as-is */ + if (state->led_state) + return 0; + else + led *= -1; + } + + /* toggle LED if changing state */ + if (state->led_state != led) { + u8 val; + + dprintk("%s: %d\n", __func__, led); + + au8522_led_gpio_enable(state, 1); + + val = au8522_readreg(state, 0x4000 | + (led_config->gpio_leds & ~0xc000)); + + /* start with all leds off */ + for (i = 0; i < led_config->num_led_states; i++) + val &= ~led_config->led_states[i]; + + /* set selected LED state */ + if (led < led_config->num_led_states) + val |= led_config->led_states[led]; + else if (led_config->num_led_states) + val |= + led_config->led_states[led_config->num_led_states - 1]; + + ret = au8522_writereg(state, 0x8000 | + (led_config->gpio_leds & ~0xc000), val); + if (ret < 0) + return ret; + + state->led_state = led; + + if (led == 0) + au8522_led_gpio_enable(state, 0); + } + + return 0; +} +EXPORT_SYMBOL(au8522_led_ctrl); + +int au8522_init(struct dvb_frontend *fe) +{ + struct au8522_state *state = fe->demodulator_priv; + dprintk("%s()\n", __func__); + + state->operational_mode = AU8522_DIGITAL_MODE; + + /* Clear out any state associated with the digital side of the + chip, so that when it gets powered back up it won't think + that it is already tuned */ + state->current_frequency = 0; + + au8522_writereg(state, 0xa4, 1 << 5); + + au8522_i2c_gate_ctrl(fe, 1); + + return 0; +} +EXPORT_SYMBOL(au8522_init); + +int au8522_sleep(struct dvb_frontend *fe) +{ + struct au8522_state *state = fe->demodulator_priv; + dprintk("%s()\n", __func__); + + /* Only power down if the digital side is currently using the chip */ + if (state->operational_mode == AU8522_ANALOG_MODE) { + /* We're not in one of the expected power modes, which means + that the DVB thread is probably telling us to go to sleep + even though the analog frontend has already started using + the chip. So ignore the request */ + return 0; + } + + /* turn off led */ + au8522_led_ctrl(state, 0); + + /* Power down the chip */ + au8522_writereg(state, 0xa4, 1 << 5); + + state->current_frequency = 0; + + return 0; +} +EXPORT_SYMBOL(au8522_sleep); diff --git a/drivers/media/dvb/frontends/au8522_dig.c b/drivers/media/dvb/frontends/au8522_dig.c index 25f6509..5fc70d6 100644 --- a/drivers/media/dvb/frontends/au8522_dig.c +++ b/drivers/media/dvb/frontends/au8522_dig.c @@ -30,74 +30,11 @@ static int debug; -/* Despite the name "hybrid_tuner", the framework works just as well for - hybrid demodulators as well... */ -static LIST_HEAD(hybrid_tuner_instance_list); -static DEFINE_MUTEX(au8522_list_mutex); - #define dprintk(arg...)\ do { if (debug)\ printk(arg);\ } while (0) -/* 16 bit registers, 8 bit values */ -int au8522_writereg(struct au8522_state *state, u16 reg, u8 data) -{ - int ret; - u8 buf[] = { (reg >> 8) | 0x80, reg & 0xff, data }; - - struct i2c_msg msg = { .addr = state->config->demod_address, - .flags = 0, .buf = buf, .len = 3 }; - - ret = i2c_transfer(state->i2c, &msg, 1); - - if (ret != 1) - printk("%s: writereg error (reg == 0x%02x, val == 0x%04x, " - "ret == %i)\n", __func__, reg, data, ret); - - return (ret != 1) ? -1 : 0; -} - -u8 au8522_readreg(struct au8522_state *state, u16 reg) -{ - int ret; - u8 b0[] = { (reg >> 8) | 0x40, reg & 0xff }; - u8 b1[] = { 0 }; - - struct i2c_msg msg[] = { - { .addr = state->config->demod_address, .flags = 0, - .buf = b0, .len = 2 }, - { .addr = state->config->demod_address, .flags = I2C_M_RD, - .buf = b1, .len = 1 } }; - - ret = i2c_transfer(state->i2c, msg, 2); - - if (ret != 2) - printk(KERN_ERR "%s: readreg error (ret == %i)\n", - __func__, ret); - return b1[0]; -} - -static int au8522_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) -{ - struct au8522_state *state = fe->demodulator_priv; - - dprintk("%s(%d)\n", __func__, enable); - - if (state->operational_mode == AU8522_ANALOG_MODE) { - /* We're being asked to manage the gate even though we're - not in digital mode. This can occur if we get switched - over to analog mode before the dvb_frontend kernel thread - has completely shutdown */ - return 0; - } - - if (enable) - return au8522_writereg(state, 0x106, 1); - else - return au8522_writereg(state, 0x106, 0); -} - struct mse2snr_tab { u16 val; u16 data; @@ -609,136 +546,6 @@ static int au8522_set_frontend(struct dvb_frontend *fe) return 0; } -/* Reset the demod hardware and reset all of the configuration registers - to a default state. */ -int au8522_init(struct dvb_frontend *fe) -{ - struct au8522_state *state = fe->demodulator_priv; - dprintk("%s()\n", __func__); - - state->operational_mode = AU8522_DIGITAL_MODE; - - /* Clear out any state associated with the digital side of the - chip, so that when it gets powered back up it won't think - that it is already tuned */ - state->current_frequency = 0; - - au8522_writereg(state, 0xa4, 1 << 5); - - au8522_i2c_gate_ctrl(fe, 1); - - return 0; -} - -static int au8522_led_gpio_enable(struct au8522_state *state, int onoff) -{ - struct au8522_led_config *led_config = state->config->led_cfg; - u8 val; - - /* bail out if we can't control an LED */ - if (!led_config || !led_config->gpio_output || - !led_config->gpio_output_enable || !led_config->gpio_output_disable) - return 0; - - val = au8522_readreg(state, 0x4000 | - (led_config->gpio_output & ~0xc000)); - if (onoff) { - /* enable GPIO output */ - val &= ~((led_config->gpio_output_enable >> 8) & 0xff); - val |= (led_config->gpio_output_enable & 0xff); - } else { - /* disable GPIO output */ - val &= ~((led_config->gpio_output_disable >> 8) & 0xff); - val |= (led_config->gpio_output_disable & 0xff); - } - return au8522_writereg(state, 0x8000 | - (led_config->gpio_output & ~0xc000), val); -} - -/* led = 0 | off - * led = 1 | signal ok - * led = 2 | signal strong - * led < 0 | only light led if leds are currently off - */ -static int au8522_led_ctrl(struct au8522_state *state, int led) -{ - struct au8522_led_config *led_config = state->config->led_cfg; - int i, ret = 0; - - /* bail out if we can't control an LED */ - if (!led_config || !led_config->gpio_leds || - !led_config->num_led_states || !led_config->led_states) - return 0; - - if (led < 0) { - /* if LED is already lit, then leave it as-is */ - if (state->led_state) - return 0; - else - led *= -1; - } - - /* toggle LED if changing state */ - if (state->led_state != led) { - u8 val; - - dprintk("%s: %d\n", __func__, led); - - au8522_led_gpio_enable(state, 1); - - val = au8522_readreg(state, 0x4000 | - (led_config->gpio_leds & ~0xc000)); - - /* start with all leds off */ - for (i = 0; i < led_config->num_led_states; i++) - val &= ~led_config->led_states[i]; - - /* set selected LED state */ - if (led < led_config->num_led_states) - val |= led_config->led_states[led]; - else if (led_config->num_led_states) - val |= - led_config->led_states[led_config->num_led_states - 1]; - - ret = au8522_writereg(state, 0x8000 | - (led_config->gpio_leds & ~0xc000), val); - if (ret < 0) - return ret; - - state->led_state = led; - - if (led == 0) - au8522_led_gpio_enable(state, 0); - } - - return 0; -} - -int au8522_sleep(struct dvb_frontend *fe) -{ - struct au8522_state *state = fe->demodulator_priv; - dprintk("%s()\n", __func__); - - /* Only power down if the digital side is currently using the chip */ - if (state->operational_mode == AU8522_ANALOG_MODE) { - /* We're not in one of the expected power modes, which means - that the DVB thread is probably telling us to go to sleep - even though the analog frontend has already started using - the chip. So ignore the request */ - return 0; - } - - /* turn off led */ - au8522_led_ctrl(state, 0); - - /* Power down the chip */ - au8522_writereg(state, 0xa4, 1 << 5); - - state->current_frequency = 0; - - return 0; -} - static int au8522_read_status(struct dvb_frontend *fe, fe_status_t *status) { struct au8522_state *state = fe->demodulator_priv; @@ -931,28 +738,6 @@ static int au8522_get_tune_settings(struct dvb_frontend *fe, static struct dvb_frontend_ops au8522_ops; -int au8522_get_state(struct au8522_state **state, struct i2c_adapter *i2c, - u8 client_address) -{ - int ret; - - mutex_lock(&au8522_list_mutex); - ret = hybrid_tuner_request_state(struct au8522_state, (*state), - hybrid_tuner_instance_list, - i2c, client_address, "au8522"); - mutex_unlock(&au8522_list_mutex); - - return ret; -} - -void au8522_release_state(struct au8522_state *state) -{ - mutex_lock(&au8522_list_mutex); - if (state != NULL) - hybrid_tuner_release_state(state); - mutex_unlock(&au8522_list_mutex); -} - static void au8522_release(struct dvb_frontend *fe) { diff --git a/drivers/media/dvb/frontends/au8522_priv.h b/drivers/media/dvb/frontends/au8522_priv.h index 751e17d..6e4a438 100644 --- a/drivers/media/dvb/frontends/au8522_priv.h +++ b/drivers/media/dvb/frontends/au8522_priv.h @@ -81,6 +81,8 @@ int au8522_sleep(struct dvb_frontend *fe); int au8522_get_state(struct au8522_state **state, struct i2c_adapter *i2c, u8 client_address); void au8522_release_state(struct au8522_state *state); +int au8522_i2c_gate_ctrl(struct dvb_frontend *fe, int enable); +int au8522_led_ctrl(struct au8522_state *state, int led); /* REGISTERS */ #define AU8522_INPUT_CONTROL_REG081H 0x081 |
