diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/dvb/frontends/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/Makefile | 1 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/tda10048.c | 704 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/tda10048.h | 63 |
4 files changed, 776 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig index ae3659be323..68fab616f55 100644 --- a/drivers/media/dvb/frontends/Kconfig +++ b/drivers/media/dvb/frontends/Kconfig @@ -188,6 +188,14 @@ config DVB_DIB7000P A DVB-T tuner module. Designed for mobile usage. Say Y when you want to support this frontend. +config DVB_TDA10048 + tristate "Philips TDA10048HN based" + depends on DVB_CORE && I2C + default m if DVB_FE_CUSTOMISE + select FW_LOADER + help + A DVB-T tuner module. Say Y when you want to support this frontend. + comment "DVB-C (cable) frontends" depends on DVB_CORE diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile index 8e23a30ed3b..2f873fc0f64 100644 --- a/drivers/media/dvb/frontends/Makefile +++ b/drivers/media/dvb/frontends/Makefile @@ -54,3 +54,4 @@ obj-$(CONFIG_DVB_S5H1409) += s5h1409.o obj-$(CONFIG_DVB_TUNER_XC5000) += xc5000.o obj-$(CONFIG_DVB_TUNER_ITD1000) += itd1000.o obj-$(CONFIG_DVB_AU8522) += au8522.o +obj-$(CONFIG_DVB_TDA10048) += tda10048.o diff --git a/drivers/media/dvb/frontends/tda10048.c b/drivers/media/dvb/frontends/tda10048.c new file mode 100644 index 00000000000..701dd02b0d0 --- /dev/null +++ b/drivers/media/dvb/frontends/tda10048.c @@ -0,0 +1,704 @@ +/* + NXP TDA10048HN DVB OFDM demodulator driver + + Copyright (C) 2008 Steven Toth <stoth@hauppauge.com> + + 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/kernel.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include "dvb_frontend.h" +#include "tda10048.h" + +#define TDA10048_DEFAULT_FIRMWARE "dvb-fe-tda10048-1.0.fw" +#define TDA10048_DEFAULT_FIRMWARE_SIZE 24878 + +/* Register name definitions */ +#define TDA10048_IDENTITY 0x00 +#define TDA10048_VERSION 0x01 +#define TDA10048_DSP_CODE_CPT 0x0C +#define TDA10048_DSP_CODE_IN 0x0E +#define TDA10048_IN_CONF1 0x10 +#define TDA10048_IN_CONF2 0x11 +#define TDA10048_IN_CONF3 0x12 +#define TDA10048_OUT_CONF1 0x14 +#define TDA10048_OUT_CONF2 0x15 +#define TDA10048_OUT_CONF3 0x16 +#define TDA10048_AUTO 0x18 +#define TDA10048_SYNC_STATUS 0x1A +#define TDA10048_CONF_C4_1 0x1E +#define TDA10048_CONF_C4_2 0x1F +#define TDA10048_CODE_IN_RAM 0x20 +#define TDA10048_CHANNEL_INFO_1_R 0x22 +#define TDA10048_CHANNEL_INFO_2_R 0x23 +#define TDA10048_CHANNEL_INFO1 0x24 +#define TDA10048_CHANNEL_INFO2 0x25 +#define TDA10048_TIME_ERROR_R 0x26 +#define TDA10048_TIME_ERROR 0x27 +#define TDA10048_FREQ_ERROR_LSB_R 0x28 +#define TDA10048_FREQ_ERROR_MSB_R 0x29 +#define TDA10048_FREQ_ERROR_LSB 0x2A +#define TDA10048_FREQ_ERROR_MSB 0x2B +#define TDA10048_IT_SEL 0x30 +#define TDA10048_IT_STAT 0x32 +#define TDA10048_DSP_AD_LSB 0x3C +#define TDA10048_DSP_AD_MSB 0x3D +#define TDA10048_DSP_REF_LSB 0x3E +#define TDA10048_DSP_REF_MSB 0x3F +#define TDA10048_CONF_TRISTATE1 0x44 +#define TDA10048_CONF_TRISTATE2 0x45 +#define TDA10048_CONF_POLARITY 0x46 +#define TDA10048_GPIO_SP_DS0 0x48 +#define TDA10048_GPIO_SP_DS1 0x49 +#define TDA10048_GPIO_SP_DS2 0x4A +#define TDA10048_GPIO_SP_DS3 0x4B +#define TDA10048_GPIO_OUT_SEL 0x4C +#define TDA10048_GPIO_SELECT 0x4D +#define TDA10048_IC_MODE 0x4E +#define TDA10048_CONF_XO 0x50 +#define TDA10048_CONF_PLL1 0x51 +#define TDA10048_CONF_PLL2 0x52 +#define TDA10048_CONF_PLL3 0x53 +#define TDA10048_CONF_ADC 0x54 +#define TDA10048_CONF_ADC_2 0x55 +#define TDA10048_CONF_C1_1 0x60 +#define TDA10048_CONF_C1_3 0x62 +#define TDA10048_AGC_CONF 0x70 +#define TDA10048_AGC_THRESHOLD_LSB 0x72 +#define TDA10048_AGC_THRESHOLD_MSB 0x73 +#define TDA10048_AGC_RENORM 0x74 +#define TDA10048_AGC_GAINS 0x76 +#define TDA10048_AGC_TUN_MIN 0x78 +#define TDA10048_AGC_TUN_MAX 0x79 +#define TDA10048_AGC_IF_MIN 0x7A +#define TDA10048_AGC_IF_MAX 0x7B +#define TDA10048_AGC_TUN_LEVEL 0x7E +#define TDA10048_AGC_IF_LEVEL 0x7F +#define TDA10048_DIG_AGC_LEVEL 0x81 +#define TDA10048_FREQ_PHY2_LSB 0x86 +#define TDA10048_FREQ_PHY2_MSB 0x87 +#define TDA10048_TIME_INVWREF_LSB 0x88 +#define TDA10048_TIME_INVWREF_MSB 0x89 +#define TDA10048_TIME_WREF_LSB 0x8A +#define TDA10048_TIME_WREF_MID1 0x8B +#define TDA10048_TIME_WREF_MID2 0x8C +#define TDA10048_TIME_WREF_MSB 0x8D +#define TDA10048_NP_OUT 0xA2 +#define TDA10048_CELL_ID_LSB 0xA4 +#define TDA10048_CELL_ID_MSB 0xA5 +#define TDA10048_EXTTPS_ODD 0xAA +#define TDA10048_EXTTPS_EVEN 0xAB +#define TDA10048_TPS_LENGTH 0xAC +#define TDA10048_FREE_REG_1 0xB2 +#define TDA10048_FREE_REG_2 0xB3 +#define TDA10048_CONF_C3_1 0xC0 +#define TDA10048_CYBER_CTRL 0xC2 +#define TDA10048_CBER_NMAX_LSB 0xC4 +#define TDA10048_CBER_NMAX_MSB 0xC5 +#define TDA10048_CBER_LSB 0xC6 +#define TDA10048_CBER_MSB 0xC7 +#define TDA10048_VBER_LSB 0xC8 +#define TDA10048_VBER_MID 0xC9 +#define TDA10048_VBER_MSB 0xCA +#define TDA10048_CYBER_LUT 0xCC +#define TDA10048_UNCOR_CTRL 0xCD +#define TDA10048_UNCOR_CPT_LSB 0xCE +#define TDA10048_UNCOR_CPT_MSB 0xCF +#define TDA10048_SOFT_IT_C3 0xD6 +#define TDA10048_CONF_TS2 0xE0 +#define TDA10048_CONF_TS1 0xE1 + +static unsigned int debug; + +#define dprintk(level, fmt, arg...)\ + do { if (debug >= level)\ + printk(KERN_DEBUG "tda10048: " fmt, ## arg);\ + } while (0) + +struct tda10048_state { + + struct i2c_adapter *i2c; + + /* configuration settings */ + const struct tda10048_config *config; + struct dvb_frontend frontend; + + int fwloaded; +}; + +static struct init_tab { + u8 reg; + u16 data; +} init_tab[] = { + { TDA10048_CONF_PLL1, 0x08 }, + { TDA10048_CONF_ADC_2, 0x00 }, + { TDA10048_CONF_C4_1, 0x00 }, + { TDA10048_CONF_PLL1, 0x0f }, + { TDA10048_CONF_PLL2, 0x0a }, + { TDA10048_CONF_PLL3, 0x43 }, + { TDA10048_FREQ_PHY2_LSB, 0x02 }, + { TDA10048_FREQ_PHY2_MSB, 0x0a }, + { TDA10048_TIME_WREF_LSB, 0xbd }, + { TDA10048_TIME_WREF_MID1, 0xe4 }, + { TDA10048_TIME_WREF_MID2, 0xa8 }, + { TDA10048_TIME_WREF_MSB, 0x02 }, + { TDA10048_TIME_INVWREF_LSB, 0x04 }, + { TDA10048_TIME_INVWREF_MSB, 0x06 }, + { TDA10048_CONF_C4_1, 0x00 }, + { TDA10048_CONF_C1_1, 0xa8 }, + { TDA10048_AGC_CONF, 0x16 }, + { TDA10048_CONF_C1_3, 0x0b }, + { TDA10048_AGC_TUN_MIN, 0x00 }, + { TDA10048_AGC_TUN_MAX, 0xff }, + { TDA10048_AGC_IF_MIN, 0x00 }, + { TDA10048_AGC_IF_MAX, 0xff }, + { TDA10048_AGC_THRESHOLD_MSB, 0x00 }, + { TDA10048_AGC_THRESHOLD_LSB, 0x70 }, + { TDA10048_CYBER_CTRL, 0x38 }, + { TDA10048_AGC_GAINS, 0x12 }, + { TDA10048_CONF_XO, 0x00 }, + { TDA10048_CONF_TS1, 0x07 }, + { TDA10048_IC_MODE, 0x00 }, + { TDA10048_CONF_TS2, 0xc0 }, + { TDA10048_CONF_TRISTATE1, 0x21 }, + { TDA10048_CONF_TRISTATE2, 0x00 }, + { TDA10048_CONF_POLARITY, 0x00 }, + { TDA10048_CONF_C4_2, 0x04 }, + { TDA10048_CONF_ADC, 0x60 }, + { TDA10048_CONF_ADC_2, 0x10 }, + { TDA10048_CONF_ADC, 0x60 }, + { TDA10048_CONF_ADC_2, 0x00 }, + { TDA10048_CONF_C1_1, 0xa8 }, + { TDA10048_UNCOR_CTRL, 0x00 }, + { TDA10048_CONF_C4_2, 0x04 }, +}; + +static int tda10048_writereg(struct tda10048_state *state, u8 reg, u8 data) +{ + int ret; + u8 buf [] = { reg, data }; + struct i2c_msg msg = { + .addr = state->config->demod_address, + .flags = 0, .buf = buf, .len = 2 }; + + dprintk(2, "%s(reg = 0x%02x, data = 0x%02x)\n", __func__, reg, data); + + ret = i2c_transfer(state->i2c, &msg, 1); + + if (ret != 1) + printk("%s: writereg error (ret == %i)\n", __func__, ret); + + return (ret != 1) ? -1 : 0; +} + +static u8 tda10048_readreg(struct tda10048_state *state, u8 reg) +{ + int ret; + u8 b0 [] = { reg }; + u8 b1 [] = { 0 }; + struct i2c_msg msg [] = { + { .addr = state->config->demod_address, + .flags = 0, .buf = b0, .len = 1 }, + { .addr = state->config->demod_address, + .flags = I2C_M_RD, .buf = b1, .len = 1 } }; + + dprintk(2, "%s(reg = 0x%02x)\n", __func__, reg); + + 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 tda10048_writeregbulk(struct tda10048_state *state, u8 reg, + u8 *data, u16 len) +{ + int ret = -EREMOTEIO; + struct i2c_msg msg; + u8 *buf; + + dprintk(2, "%s(%d, ?, len = %d)\n", __func__, reg, len); + + buf = kmalloc(len + 1, GFP_KERNEL); + if (buf == NULL) { + ret = -ENOMEM; + goto error; + } + + *buf = reg; + memcpy(buf + 1, data, len); + + msg.addr = state->config->demod_address; + msg.flags = 0; + msg.buf = buf; + msg.len = len + 1; + + dprintk(2, "%s(): write len = %d\n", + __func__, msg.len); + + ret = i2c_transfer(state->i2c, &msg, 1); + if (ret != 1) { + printk(KERN_ERR "%s(): writereg error err %i\n", + __func__, ret); + ret = -EREMOTEIO; + } + +error: + kfree(buf); + + return ret; +} + +static int tda10048_firmware_upload(struct dvb_frontend *fe) +{ + struct tda10048_state *state = fe->demodulator_priv; + const struct firmware *fw; + int ret; + int pos = 0; + int cnt; + u8 wlen = state->config->fwbulkwritelen; + + if ((wlen != TDA10048_BULKWRITE_200) && (wlen != TDA10048_BULKWRITE_50)) + wlen = TDA10048_BULKWRITE_200; + + /* request the firmware, this will block and timeout */ + printk(KERN_INFO "%s: waiting for firmware upload (%s)...\n", + __func__, + TDA10048_DEFAULT_FIRMWARE); + + ret = request_firmware(&fw, TDA10048_DEFAULT_FIRMWARE, + &state->i2c->dev); + if (ret) { + printk(KERN_ERR "%s: Upload failed. (file not found?)\n", + __func__); + return -EIO; + } else { + printk(KERN_INFO "%s: firmware read %Zu bytes.\n", + __func__, + fw->size); + ret = 0; + } + + if (fw->size != TDA10048_DEFAULT_FIRMWARE_SIZE) { + printk(KERN_ERR "%s: firmware incorrect size\n", __func__); + return -EIO; + } else { + printk(KERN_INFO "%s: firmware uploading\n", __func__); + + /* Soft reset */ + tda10048_writereg(state, TDA10048_CONF_TRISTATE1, + tda10048_readreg(state, TDA10048_CONF_TRISTATE1) + & 0xfe); + tda10048_writereg(state, TDA10048_CONF_TRISTATE1, + tda10048_readreg(state, TDA10048_CONF_TRISTATE1) + | 0x01); + + /* Put the demod into host download mode */ + tda10048_writereg(state, TDA10048_CONF_C4_1, + tda10048_readreg(state, TDA10048_CONF_C4_1) & 0xf9); + + /* Boot the DSP */ + tda10048_writereg(state, TDA10048_CONF_C4_1, + tda10048_readreg(state, TDA10048_CONF_C4_1) | 0x08); + + /* Prepare for download */ + tda10048_writereg(state, TDA10048_DSP_CODE_CPT, 0); + + /* Download the firmware payload */ + while (pos < fw->size) { + + if ((fw->size - pos) > wlen) + cnt = wlen; + else + cnt = fw->size - pos; + + tda10048_writeregbulk(state, TDA10048_DSP_CODE_IN, + &fw->data[pos], cnt); + + pos += cnt; + } + + ret = -EIO; + /* Wait up to 250ms for the DSP to boot */ + for (cnt = 0; cnt < 250 ; cnt += 10) { + + msleep(10); + + if (tda10048_readreg(state, TDA10048_SYNC_STATUS) + & 0x40) { + ret = 0; + break; + } + } + } + + release_firmware(fw); + + if (ret == 0) { + printk(KERN_INFO "%s: firmware uploaded\n", __func__); + state->fwloaded = 1; + } else + printk(KERN_ERR "%s: firmware upload failed\n", __func__); + + return ret; +} + +static int tda10048_set_inversion(struct dvb_frontend *fe, int inversion) +{ + struct tda10048_state *state = fe->demodulator_priv; + + dprintk(1, "%s(%d)\n", __func__, inversion); + + if (inversion == TDA10048_INVERSION_ON) + tda10048_writereg(state, TDA10048_CONF_C1_1, + tda10048_readreg(state, TDA10048_CONF_C1_1) | 0x20); + else + tda10048_writereg(state, TDA10048_CONF_C1_1, + tda10048_readreg(state, TDA10048_CONF_C1_1) & 0xdf); + + return 0; +} + +/* Retrieve the demod settings */ +static int tda10048_get_tps(struct tda10048_state *state, + struct dvb_ofdm_parameters *p) +{ + u8 val; + + /* Make sure the TPS regs are valid */ + if (!(tda10048_readreg(state, TDA10048_AUTO) & 0x01)) + return -EAGAIN; + + val = tda10048_readreg(state, TDA10048_OUT_CONF2); + switch ((val & 0x60) >> 5) { + case 0: p->constellation = QPSK; break; + case 1: p->constellation = QAM_16; break; + case 2: p->constellation = QAM_64; break; + } + switch ((val & 0x18) >> 3) { + case 0: p->hierarchy_information = HIERARCHY_NONE; break; + case 1: p->hierarchy_information = HIERARCHY_1; break; + case 2: p->hierarchy_information = HIERARCHY_2; break; + case 3: p->hierarchy_information = HIERARCHY_4; break; + } + switch (val & 0x07) { + case 0: p->code_rate_HP = FEC_1_2; break; + case 1: p->code_rate_HP = FEC_2_3; break; + case 2: p->code_rate_HP = FEC_3_4; break; + case 3: p->code_rate_HP = FEC_5_6; break; + case 4: p->code_rate_HP = FEC_7_8; break; + } + + val = tda10048_readreg(state, TDA10048_OUT_CONF3); + switch (val & 0x07) { + case 0: p->code_rate_LP = FEC_1_2; break; + case 1: p->code_rate_LP = FEC_2_3; break; + case 2: p->code_rate_LP = FEC_3_4; break; + case 3: p->code_rate_LP = FEC_5_6; break; + case 4: p->code_rate_LP = FEC_7_8; break; + } + + val = tda10048_readreg(state, TDA10048_OUT_CONF1); + switch ((val & 0x0c) >> 2) { + case 0: p->guard_interval = GUARD_INTERVAL_1_32; break; + case 1: p->guard_interval = GUARD_INTERVAL_1_16; break; + case 2: p->guard_interval = GUARD_INTERVAL_1_8; break; + case 3: p->guard_interval = GUARD_INTERVAL_1_4; break; + } + switch (val & 0x02) { + case 0: p->transmission_mode = TRANSMISSION_MODE_2K; break; + case 1: p->transmission_mode = TRANSMISSION_MODE_8K; break; + } + + return 0; +} + +static int tda10048_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) +{ + struct tda10048_state *state = fe->demodulator_priv; + dprintk(1, "%s(%d)\n", __func__, enable); + + if (enable) + return tda10048_writereg(state, TDA10048_CONF_C4_1, + tda10048_readreg(state, TDA10048_CONF_C4_1) | 0x02); + else + return tda10048_writereg(state, TDA10048_CONF_C4_1, + tda10048_readreg(state, TDA10048_CONF_C4_1) & 0xfd); +} + +static int tda10048_output_mode(struct dvb_frontend *fe, int serial) +{ + struct tda10048_state *state = fe->demodulator_priv; + dprintk(1, "%s(%d)\n", __func__, serial); + + /* Ensure pins are out of tri-state */ + tda10048_writereg(state, TDA10048_CONF_TRISTATE1, 0x21); + tda10048_writereg(state, TDA10048_CONF_TRISTATE2, 0x00); + + if (serial) { + tda10048_writereg(state, TDA10048_IC_MODE, 0x80 | 0x20); + tda10048_writereg(state, TDA10048_CONF_TS2, 0xc0); + } else { + tda10048_writereg(state, TDA10048_IC_MODE, 0x00); + tda10048_writereg(state, TDA10048_CONF_TS2, 0x01); + } + + return 0; +} + +/* Talk to the demod, set the FEC, GUARD, QAM settings etc */ +/* TODO: Support manual tuning with specific params */ +static int tda10048_set_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) +{ + struct tda10048_state *state = fe->demodulator_priv; + + dprintk(1, "%s(frequency=%d)\n", __func__, p->frequency); + + if (fe->ops.tuner_ops.set_params) { + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + + fe->ops.tuner_ops.set_params(fe, p); + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + } + + /* Enable demod TPS auto detection and begin acquisition */ + tda10048_writereg(state, TDA10048_AUTO, 0x57); + + return 0; +} + +/* Establish sane defaults and load firmware. */ +static int tda10048_init(struct dvb_frontend *fe) +{ + struct tda10048_state *state = fe->demodulator_priv; + int ret = 0, i; + + dprintk(1, "%s()\n", __func__); + + /* Apply register defaults */ + for (i = 0; i < ARRAY_SIZE(init_tab); i++) + tda10048_writereg(state, init_tab[i].reg, init_tab[i].data); + + if (state->fwloaded == 0) + ret = tda10048_firmware_upload(fe); + + /* Set either serial or parallel */ + tda10048_output_mode(fe, state->config->output_mode); + + /* set inversion */ + tda10048_set_inversion(fe, state->config->inversion); + + /* Ensure we leave the gate closed */ + tda10048_i2c_gate_ctrl(fe, 0); + + return ret; +} + +static int tda10048_read_status(struct dvb_frontend *fe, fe_status_t *status) +{ + struct tda10048_state *state = fe->demodulator_priv; + u8 reg; + + *status = 0; + + reg = tda10048_readreg(state, TDA10048_SYNC_STATUS); + + dprintk(1, "%s() status =0x%02x\n", __func__, reg); + + if (reg & 0x02) + *status |= FE_HAS_CARRIER; + + if (reg & 0x04) + *status |= FE_HAS_SIGNAL; + + if (reg & 0x08) { + *status |= FE_HAS_LOCK; + *status |= FE_HAS_VITERBI; + *status |= FE_HAS_SYNC; + } + + return 0; +} + +static int tda10048_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + struct tda10048_state *state = fe->demodulator_priv; + + dprintk(1, "%s()\n", __func__); + + /* TODO: A reset may be required here */ + *ber = tda10048_readreg(state, TDA10048_CBER_MSB) << 8 | + tda10048_readreg(state, TDA10048_CBER_LSB); + + return 0; +} + +static int tda10048_read_signal_strength(struct dvb_frontend *fe, + u16 *signal_strength) +{ + struct tda10048_state *state = fe->demodulator_priv; + u16 v; + + dprintk(1, "%s()\n", __func__); + + v = tda10048_readreg(state, TDA10048_NP_OUT); + if (v == 0) + *signal_strength = 100; + else { + /* TODO: Apply .db math for correct values */ + *signal_strength = v; + } + + return 0; +} + +static int tda10048_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + struct tda10048_state *state = fe->demodulator_priv; + + dprintk(1, "%s()\n", __func__); + + /* TODO: This result should be the same as signal strength */ + *snr = tda10048_readreg(state, TDA10048_NP_OUT); + + return 0; +} + +static int tda10048_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) +{ + struct tda10048_state *state = fe->demodulator_priv; + + dprintk(1, "%s()\n", __func__); + + *ucblocks = tda10048_readreg(state, TDA10048_UNCOR_CPT_MSB) << 8 | + tda10048_readreg(state, TDA10048_UNCOR_CPT_LSB); + + return 0; +} + +static int tda10048_get_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) +{ + struct tda10048_state *state = fe->demodulator_priv; + + dprintk(1, "%s()\n", __func__); + + p->inversion = tda10048_readreg(state, TDA10048_CONF_C1_1) + & 0x20 ? INVERSION_ON : INVERSION_OFF; + + return tda10048_get_tps(state, &p->u.ofdm); +} + +static int tda10048_get_tune_settings(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings *tune) +{ + tune->min_delay_ms = 1000; + return 0; +} + +static void tda10048_release(struct dvb_frontend *fe) +{ + struct tda10048_state *state = fe->demodulator_priv; + dprintk(1, "%s()\n", __func__); + kfree(state); +} + +static struct dvb_frontend_ops tda10048_ops; + +struct dvb_frontend *tda10048_attach(const struct tda10048_config *config, + struct i2c_adapter *i2c) +{ + struct tda10048_state *state = NULL; + + dprintk(1, "%s()\n", __func__); + + /* allocate memory for the internal state */ + state = kmalloc(sizeof(struct tda10048_state), GFP_KERNEL); + if (state == NULL) + goto error; + + /* setup the state */ + state->config = config; + state->i2c = i2c; + state->fwloaded = 0; + + /* check if the demod is present */ + if (tda10048_readreg(state, TDA10048_IDENTITY) != 0x048) + goto error; + + /* create dvb_frontend */ + memcpy(&state->frontend.ops, &tda10048_ops, + sizeof(struct dvb_frontend_ops)); + state->frontend.demodulator_priv = state; + + /* Leave the gate closed */ + tda10048_i2c_gate_ctrl(&state->frontend, 0); + + return &state->frontend; + +error: + kfree(state); + return NULL; +} +EXPORT_SYMBOL(tda10048_attach); + +static struct dvb_frontend_ops tda10048_ops = { + + .info = { + .name = "NXP TDA10048HN DVB-T", + .type = FE_OFDM, + .frequency_min = 177000000, + .frequency_max = 858000000, + .frequency_stepsize = 166666, + .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | + FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | + FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | + FE_CAN_HIERARCHY_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_RECOVER + }, + + .release = tda10048_release, + .init = tda10048_init, + .i2c_gate_ctrl = tda10048_i2c_gate_ctrl, + .set_frontend = tda10048_set_frontend, + .get_frontend = tda10048_get_frontend, + .get_tune_settings = tda10048_get_tune_settings, + .read_status = tda10048_read_status, + .read_ber = tda10048_read_ber, + .read_signal_strength = tda10048_read_signal_strength, + .read_snr = tda10048_read_snr, + .read_ucblocks = tda10048_read_ucblocks, +}; + +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "Enable verbose debug messages"); + +MODULE_DESCRIPTION("NXP TDA10048HN DVB-T Demodulator driver"); +MODULE_AUTHOR("Steven Toth"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/dvb/frontends/tda10048.h b/drivers/media/dvb/frontends/tda10048.h new file mode 100644 index 00000000000..2b5c78e62c8 --- /dev/null +++ b/drivers/media/dvb/frontends/tda10048.h @@ -0,0 +1,63 @@ +/* + NXP TDA10048HN DVB OFDM demodulator driver + + Copyright (C) 2008 Steven Toth <stoth@hauppauge.com> + + 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. + +*/ + +#ifndef TDA10048_H +#define TDA10048_H + +#include <linux/dvb/frontend.h> +#include <linux/firmware.h> + +struct tda10048_config { + + /* the demodulator's i2c address */ + u8 demod_address; + + /* serial/parallel output */ +#define TDA10048_PARALLEL_OUTPUT 0 +#define TDA10048_SERIAL_OUTPUT 1 + u8 output_mode; + +#define TDA10048_BULKWRITE_200 200 +#define TDA10048_BULKWRITE_50 50 + u8 fwbulkwritelen; + + /* Spectral Inversion */ +#define TDA10048_INVERSION_OFF 0 +#define TDA10048_INVERSION_ON 1 + u8 inversion; +}; + +#if defined(CONFIG_DVB_TDA10048) || \ + (defined(CONFIG_DVB_TDA10048_MODULE) && defined(MODULE)) +extern struct dvb_frontend *tda10048_attach( + const struct tda10048_config *config, + struct i2c_adapter *i2c); +#else +static inline struct dvb_frontend *tda10048_attach( + const struct tda10048_config *config, + struct i2c_adapter *i2c) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif /* CONFIG_DVB_TDA10048 */ + +#endif /* TDA10048_H */ |