diff options
Diffstat (limited to 'drivers/media/dvb/frontends/tda8083.c')
| -rw-r--r-- | drivers/media/dvb/frontends/tda8083.c | 487 |
1 files changed, 0 insertions, 487 deletions
diff --git a/drivers/media/dvb/frontends/tda8083.c b/drivers/media/dvb/frontends/tda8083.c deleted file mode 100644 index 15912c9..0000000 --- a/drivers/media/dvb/frontends/tda8083.c +++ /dev/null @@ -1,487 +0,0 @@ -/* - Driver for Philips TDA8083 based QPSK Demodulator - - Copyright (C) 2001 Convergence Integrated Media GmbH - - written by Ralph Metzler <ralph@convergence.de> - - adoption to the new DVB frontend API and diagnostic ioctl's - by Holger Waechtler <holger@convergence.de> - - 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/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/jiffies.h> -#include "dvb_frontend.h" -#include "tda8083.h" - - -struct tda8083_state { - struct i2c_adapter* i2c; - /* configuration settings */ - const struct tda8083_config* config; - struct dvb_frontend frontend; -}; - -static int debug; -#define dprintk(args...) \ - do { \ - if (debug) printk(KERN_DEBUG "tda8083: " args); \ - } while (0) - - -static u8 tda8083_init_tab [] = { - 0x04, 0x00, 0x4a, 0x79, 0x04, 0x00, 0xff, 0xea, - 0x48, 0x42, 0x79, 0x60, 0x70, 0x52, 0x9a, 0x10, - 0x0e, 0x10, 0xf2, 0xa7, 0x93, 0x0b, 0x05, 0xc8, - 0x9d, 0x00, 0x42, 0x80, 0x00, 0x60, 0x40, 0x00, - 0x00, 0x75, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00 -}; - - -static int tda8083_writereg (struct tda8083_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 }; - - ret = i2c_transfer(state->i2c, &msg, 1); - - if (ret != 1) - dprintk ("%s: writereg error (reg %02x, ret == %i)\n", - __func__, reg, ret); - - return (ret != 1) ? -1 : 0; -} - -static int tda8083_readregs (struct tda8083_state* state, u8 reg1, u8 *b, u8 len) -{ - int ret; - struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = ®1, .len = 1 }, - { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b, .len = len } }; - - ret = i2c_transfer(state->i2c, msg, 2); - - if (ret != 2) - dprintk ("%s: readreg error (reg %02x, ret == %i)\n", - __func__, reg1, ret); - - return ret == 2 ? 0 : -1; -} - -static inline u8 tda8083_readreg (struct tda8083_state* state, u8 reg) -{ - u8 val; - - tda8083_readregs (state, reg, &val, 1); - - return val; -} - -static int tda8083_set_inversion (struct tda8083_state* state, fe_spectral_inversion_t inversion) -{ - /* XXX FIXME: implement other modes than FEC_AUTO */ - if (inversion == INVERSION_AUTO) - return 0; - - return -EINVAL; -} - -static int tda8083_set_fec (struct tda8083_state* state, fe_code_rate_t fec) -{ - if (fec == FEC_AUTO) - return tda8083_writereg (state, 0x07, 0xff); - - if (fec >= FEC_1_2 && fec <= FEC_8_9) - return tda8083_writereg (state, 0x07, 1 << (FEC_8_9 - fec)); - - return -EINVAL; -} - -static fe_code_rate_t tda8083_get_fec (struct tda8083_state* state) -{ - u8 index; - static fe_code_rate_t fec_tab [] = { FEC_8_9, FEC_1_2, FEC_2_3, FEC_3_4, - FEC_4_5, FEC_5_6, FEC_6_7, FEC_7_8 }; - - index = tda8083_readreg(state, 0x0e) & 0x07; - - return fec_tab [index]; -} - -static int tda8083_set_symbolrate (struct tda8083_state* state, u32 srate) -{ - u32 ratio; - u32 tmp; - u8 filter; - - if (srate > 32000000) - srate = 32000000; - if (srate < 500000) - srate = 500000; - - filter = 0; - if (srate < 24000000) - filter = 2; - if (srate < 16000000) - filter = 3; - - tmp = 31250 << 16; - ratio = tmp / srate; - - tmp = (tmp % srate) << 8; - ratio = (ratio << 8) + tmp / srate; - - tmp = (tmp % srate) << 8; - ratio = (ratio << 8) + tmp / srate; - - dprintk("tda8083: ratio == %08x\n", (unsigned int) ratio); - - tda8083_writereg (state, 0x05, filter); - tda8083_writereg (state, 0x02, (ratio >> 16) & 0xff); - tda8083_writereg (state, 0x03, (ratio >> 8) & 0xff); - tda8083_writereg (state, 0x04, (ratio ) & 0xff); - - tda8083_writereg (state, 0x00, 0x3c); - tda8083_writereg (state, 0x00, 0x04); - - return 1; -} - -static void tda8083_wait_diseqc_fifo (struct tda8083_state* state, int timeout) -{ - unsigned long start = jiffies; - - while (jiffies - start < timeout && - !(tda8083_readreg(state, 0x02) & 0x80)) - { - msleep(50); - }; -} - -static int tda8083_set_tone (struct tda8083_state* state, fe_sec_tone_mode_t tone) -{ - tda8083_writereg (state, 0x26, 0xf1); - - switch (tone) { - case SEC_TONE_OFF: - return tda8083_writereg (state, 0x29, 0x00); - case SEC_TONE_ON: - return tda8083_writereg (state, 0x29, 0x80); - default: - return -EINVAL; - }; -} - -static int tda8083_set_voltage (struct tda8083_state* state, fe_sec_voltage_t voltage) -{ - switch (voltage) { - case SEC_VOLTAGE_13: - return tda8083_writereg (state, 0x20, 0x00); - case SEC_VOLTAGE_18: - return tda8083_writereg (state, 0x20, 0x11); - default: - return -EINVAL; - }; -} - -static int tda8083_send_diseqc_burst (struct tda8083_state* state, fe_sec_mini_cmd_t burst) -{ - switch (burst) { - case SEC_MINI_A: - tda8083_writereg (state, 0x29, (5 << 2)); /* send burst A */ - break; - case SEC_MINI_B: - tda8083_writereg (state, 0x29, (7 << 2)); /* send B */ - break; - default: - return -EINVAL; - }; - - tda8083_wait_diseqc_fifo (state, 100); - - return 0; -} - -static int tda8083_send_diseqc_msg (struct dvb_frontend* fe, - struct dvb_diseqc_master_cmd *m) -{ - struct tda8083_state* state = fe->demodulator_priv; - int i; - - tda8083_writereg (state, 0x29, (m->msg_len - 3) | (1 << 2)); /* enable */ - - for (i=0; i<m->msg_len; i++) - tda8083_writereg (state, 0x23 + i, m->msg[i]); - - tda8083_writereg (state, 0x29, (m->msg_len - 3) | (3 << 2)); /* send!! */ - - tda8083_wait_diseqc_fifo (state, 100); - - return 0; -} - -static int tda8083_read_status(struct dvb_frontend* fe, fe_status_t* status) -{ - struct tda8083_state* state = fe->demodulator_priv; - - u8 signal = ~tda8083_readreg (state, 0x01); - u8 sync = tda8083_readreg (state, 0x02); - - *status = 0; - - if (signal > 10) - *status |= FE_HAS_SIGNAL; - - if (sync & 0x01) - *status |= FE_HAS_CARRIER; - - if (sync & 0x02) - *status |= FE_HAS_VITERBI; - - if (sync & 0x10) - *status |= FE_HAS_SYNC; - - if (sync & 0x20) /* frontend can not lock */ - *status |= FE_TIMEDOUT; - - if ((sync & 0x1f) == 0x1f) - *status |= FE_HAS_LOCK; - - return 0; -} - -static int tda8083_read_ber(struct dvb_frontend* fe, u32* ber) -{ - struct tda8083_state* state = fe->demodulator_priv; - int ret; - u8 buf[3]; - - if ((ret = tda8083_readregs(state, 0x0b, buf, sizeof(buf)))) - return ret; - - *ber = ((buf[0] & 0x1f) << 16) | (buf[1] << 8) | buf[2]; - - return 0; -} - -static int tda8083_read_signal_strength(struct dvb_frontend* fe, u16* strength) -{ - struct tda8083_state* state = fe->demodulator_priv; - - u8 signal = ~tda8083_readreg (state, 0x01); - *strength = (signal << 8) | signal; - - return 0; -} - -static int tda8083_read_snr(struct dvb_frontend* fe, u16* snr) -{ - struct tda8083_state* state = fe->demodulator_priv; - - u8 _snr = tda8083_readreg (state, 0x08); - *snr = (_snr << 8) | _snr; - - return 0; -} - -static int tda8083_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) -{ - struct tda8083_state* state = fe->demodulator_priv; - - *ucblocks = tda8083_readreg(state, 0x0f); - if (*ucblocks == 0xff) - *ucblocks = 0xffffffff; - - return 0; -} - -static int tda8083_set_frontend(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *p = &fe->dtv_property_cache; - struct tda8083_state* state = fe->demodulator_priv; - - if (fe->ops.tuner_ops.set_params) { - fe->ops.tuner_ops.set_params(fe); - if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); - } - - tda8083_set_inversion (state, p->inversion); - tda8083_set_fec(state, p->fec_inner); - tda8083_set_symbolrate(state, p->symbol_rate); - - tda8083_writereg (state, 0x00, 0x3c); - tda8083_writereg (state, 0x00, 0x04); - - return 0; -} - -static int tda8083_get_frontend(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *p = &fe->dtv_property_cache; - struct tda8083_state* state = fe->demodulator_priv; - - /* FIXME: get symbolrate & frequency offset...*/ - /*p->frequency = ???;*/ - p->inversion = (tda8083_readreg (state, 0x0e) & 0x80) ? - INVERSION_ON : INVERSION_OFF; - p->fec_inner = tda8083_get_fec(state); - /*p->symbol_rate = tda8083_get_symbolrate (state);*/ - - return 0; -} - -static int tda8083_sleep(struct dvb_frontend* fe) -{ - struct tda8083_state* state = fe->demodulator_priv; - - tda8083_writereg (state, 0x00, 0x02); - return 0; -} - -static int tda8083_init(struct dvb_frontend* fe) -{ - struct tda8083_state* state = fe->demodulator_priv; - int i; - - for (i=0; i<44; i++) - tda8083_writereg (state, i, tda8083_init_tab[i]); - - tda8083_writereg (state, 0x00, 0x3c); - tda8083_writereg (state, 0x00, 0x04); - - return 0; -} - -static int tda8083_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t burst) -{ - struct tda8083_state* state = fe->demodulator_priv; - - tda8083_send_diseqc_burst (state, burst); - tda8083_writereg (state, 0x00, 0x3c); - tda8083_writereg (state, 0x00, 0x04); - - return 0; -} - -static int tda8083_diseqc_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone) -{ - struct tda8083_state* state = fe->demodulator_priv; - - tda8083_set_tone (state, tone); - tda8083_writereg (state, 0x00, 0x3c); - tda8083_writereg (state, 0x00, 0x04); - - return 0; -} - -static int tda8083_diseqc_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage) -{ - struct tda8083_state* state = fe->demodulator_priv; - - tda8083_set_voltage (state, voltage); - tda8083_writereg (state, 0x00, 0x3c); - tda8083_writereg (state, 0x00, 0x04); - - return 0; -} - -static void tda8083_release(struct dvb_frontend* fe) -{ - struct tda8083_state* state = fe->demodulator_priv; - kfree(state); -} - -static struct dvb_frontend_ops tda8083_ops; - -struct dvb_frontend* tda8083_attach(const struct tda8083_config* config, - struct i2c_adapter* i2c) -{ - struct tda8083_state* state = NULL; - - /* allocate memory for the internal state */ - state = kzalloc(sizeof(struct tda8083_state), GFP_KERNEL); - if (state == NULL) goto error; - - /* setup the state */ - state->config = config; - state->i2c = i2c; - - /* check if the demod is there */ - if ((tda8083_readreg(state, 0x00)) != 0x05) goto error; - - /* create dvb_frontend */ - memcpy(&state->frontend.ops, &tda8083_ops, sizeof(struct dvb_frontend_ops)); - state->frontend.demodulator_priv = state; - return &state->frontend; - -error: - kfree(state); - return NULL; -} - -static struct dvb_frontend_ops tda8083_ops = { - .delsys = { SYS_DVBS }, - .info = { - .name = "Philips TDA8083 DVB-S", - .frequency_min = 920000, /* TDA8060 */ - .frequency_max = 2200000, /* TDA8060 */ - .frequency_stepsize = 125, /* kHz for QPSK frontends */ - /* .frequency_tolerance = ???,*/ - .symbol_rate_min = 12000000, - .symbol_rate_max = 30000000, - /* .symbol_rate_tolerance = ???,*/ - .caps = FE_CAN_INVERSION_AUTO | - FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | - FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | - FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO | - FE_CAN_QPSK | FE_CAN_MUTE_TS - }, - - .release = tda8083_release, - - .init = tda8083_init, - .sleep = tda8083_sleep, - - .set_frontend = tda8083_set_frontend, - .get_frontend = tda8083_get_frontend, - - .read_status = tda8083_read_status, - .read_signal_strength = tda8083_read_signal_strength, - .read_snr = tda8083_read_snr, - .read_ber = tda8083_read_ber, - .read_ucblocks = tda8083_read_ucblocks, - - .diseqc_send_master_cmd = tda8083_send_diseqc_msg, - .diseqc_send_burst = tda8083_diseqc_send_burst, - .set_tone = tda8083_diseqc_set_tone, - .set_voltage = tda8083_diseqc_set_voltage, -}; - -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); - -MODULE_DESCRIPTION("Philips TDA8083 DVB-S Demodulator"); -MODULE_AUTHOR("Ralph Metzler, Holger Waechtler"); -MODULE_LICENSE("GPL"); - -EXPORT_SYMBOL(tda8083_attach); |
