diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/media/dvb/frontends/ves1x93.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/media/dvb/frontends/ves1x93.c | 553 |
1 files changed, 0 insertions, 553 deletions
diff --git a/ANDROID_3.4.5/drivers/media/dvb/frontends/ves1x93.c b/ANDROID_3.4.5/drivers/media/dvb/frontends/ves1x93.c deleted file mode 100644 index 9c17eaca..00000000 --- a/ANDROID_3.4.5/drivers/media/dvb/frontends/ves1x93.c +++ /dev/null @@ -1,553 +0,0 @@ -/* - Driver for VES1893 and VES1993 QPSK Demodulators - - Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de> - Copyright (C) 2001 Ronny Strutz <3des@elitedvb.de> - Copyright (C) 2002 Dennis Noermann <dennis.noermann@noernet.de> - Copyright (C) 2002-2003 Andreas Oberritter <obi@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/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/delay.h> - -#include "dvb_frontend.h" -#include "ves1x93.h" - - -struct ves1x93_state { - struct i2c_adapter* i2c; - /* configuration settings */ - const struct ves1x93_config* config; - struct dvb_frontend frontend; - - /* previous uncorrected block counter */ - fe_spectral_inversion_t inversion; - u8 *init_1x93_tab; - u8 *init_1x93_wtab; - u8 tab_size; - u8 demod_type; - u32 frequency; -}; - -static int debug; -#define dprintk if (debug) printk - -#define DEMOD_VES1893 0 -#define DEMOD_VES1993 1 - -static u8 init_1893_tab [] = { - 0x01, 0xa4, 0x35, 0x80, 0x2a, 0x0b, 0x55, 0xc4, - 0x09, 0x69, 0x00, 0x86, 0x4c, 0x28, 0x7f, 0x00, - 0x00, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x80, 0x00, 0x21, 0xb0, 0x14, 0x00, 0xdc, 0x00, - 0x81, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x55, 0x00, 0x00, 0x7f, 0x00 -}; - -static u8 init_1993_tab [] = { - 0x00, 0x9c, 0x35, 0x80, 0x6a, 0x09, 0x72, 0x8c, - 0x09, 0x6b, 0x00, 0x00, 0x4c, 0x08, 0x00, 0x00, - 0x00, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x80, 0x40, 0x21, 0xb0, 0x00, 0x00, 0x00, 0x10, - 0x81, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x55, 0x03, 0x00, 0x00, 0x00, 0x00, 0x03, - 0x00, 0x00, 0x0e, 0x80, 0x00 -}; - -static u8 init_1893_wtab[] = -{ - 1,1,1,1,1,1,1,1, 1,1,0,0,1,1,0,0, - 0,1,0,0,0,0,0,0, 1,0,1,1,0,0,0,1, - 1,1,1,0,0,0,0,0, 0,0,1,1,0,0,0,0, - 1,1,1,0,1,1 -}; - -static u8 init_1993_wtab[] = -{ - 1,1,1,1,1,1,1,1, 1,1,0,0,1,1,0,0, - 0,1,0,0,0,0,0,0, 1,1,1,1,0,0,0,1, - 1,1,1,0,0,0,0,0, 0,0,1,1,0,0,0,0, - 1,1,1,0,1,1,1,1, 1,1,1,1,1 -}; - -static int ves1x93_writereg (struct ves1x93_state* state, u8 reg, u8 data) -{ - u8 buf [] = { 0x00, reg, data }; - struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 3 }; - int err; - - if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) { - dprintk ("%s: writereg error (err == %i, reg == 0x%02x, data == 0x%02x)\n", __func__, err, reg, data); - return -EREMOTEIO; - } - - return 0; -} - -static u8 ves1x93_readreg (struct ves1x93_state* state, u8 reg) -{ - int ret; - u8 b0 [] = { 0x00, reg }; - 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) return ret; - - return b1[0]; -} - -static int ves1x93_clr_bit (struct ves1x93_state* state) -{ - msleep(10); - ves1x93_writereg (state, 0, state->init_1x93_tab[0] & 0xfe); - ves1x93_writereg (state, 0, state->init_1x93_tab[0]); - msleep(50); - return 0; -} - -static int ves1x93_set_inversion (struct ves1x93_state* state, fe_spectral_inversion_t inversion) -{ - u8 val; - - /* - * inversion on/off are interchanged because i and q seem to - * be swapped on the hardware - */ - - switch (inversion) { - case INVERSION_OFF: - val = 0xc0; - break; - case INVERSION_ON: - val = 0x80; - break; - case INVERSION_AUTO: - val = 0x00; - break; - default: - return -EINVAL; - } - - return ves1x93_writereg (state, 0x0c, (state->init_1x93_tab[0x0c] & 0x3f) | val); -} - -static int ves1x93_set_fec (struct ves1x93_state* state, fe_code_rate_t fec) -{ - if (fec == FEC_AUTO) - return ves1x93_writereg (state, 0x0d, 0x08); - else if (fec < FEC_1_2 || fec > FEC_8_9) - return -EINVAL; - else - return ves1x93_writereg (state, 0x0d, fec - FEC_1_2); -} - -static fe_code_rate_t ves1x93_get_fec (struct ves1x93_state* state) -{ - return FEC_1_2 + ((ves1x93_readreg (state, 0x0d) >> 4) & 0x7); -} - -static int ves1x93_set_symbolrate (struct ves1x93_state* state, u32 srate) -{ - u32 BDR; - u32 ratio; - u8 ADCONF, FCONF, FNR, AGCR; - u32 BDRI; - u32 tmp; - u32 FIN; - - dprintk("%s: srate == %d\n", __func__, (unsigned int) srate); - - if (srate > state->config->xin/2) - srate = state->config->xin/2; - - if (srate < 500000) - srate = 500000; - -#define MUL (1UL<<26) - - FIN = (state->config->xin + 6000) >> 4; - - tmp = srate << 6; - ratio = tmp / FIN; - - tmp = (tmp % FIN) << 8; - ratio = (ratio << 8) + tmp / FIN; - - tmp = (tmp % FIN) << 8; - ratio = (ratio << 8) + tmp / FIN; - - FNR = 0xff; - - if (ratio < MUL/3) FNR = 0; - if (ratio < (MUL*11)/50) FNR = 1; - if (ratio < MUL/6) FNR = 2; - if (ratio < MUL/9) FNR = 3; - if (ratio < MUL/12) FNR = 4; - if (ratio < (MUL*11)/200) FNR = 5; - if (ratio < MUL/24) FNR = 6; - if (ratio < (MUL*27)/1000) FNR = 7; - if (ratio < MUL/48) FNR = 8; - if (ratio < (MUL*137)/10000) FNR = 9; - - if (FNR == 0xff) { - ADCONF = 0x89; - FCONF = 0x80; - FNR = 0; - } else { - ADCONF = 0x81; - FCONF = 0x88 | (FNR >> 1) | ((FNR & 0x01) << 5); - /*FCONF = 0x80 | ((FNR & 0x01) << 5) | (((FNR > 1) & 0x03) << 3) | ((FNR >> 1) & 0x07);*/ - } - - BDR = (( (ratio << (FNR >> 1)) >> 4) + 1) >> 1; - BDRI = ( ((FIN << 8) / ((srate << (FNR >> 1)) >> 2)) + 1) >> 1; - - dprintk("FNR= %d\n", FNR); - dprintk("ratio= %08x\n", (unsigned int) ratio); - dprintk("BDR= %08x\n", (unsigned int) BDR); - dprintk("BDRI= %02x\n", (unsigned int) BDRI); - - if (BDRI > 0xff) - BDRI = 0xff; - - ves1x93_writereg (state, 0x06, 0xff & BDR); - ves1x93_writereg (state, 0x07, 0xff & (BDR >> 8)); - ves1x93_writereg (state, 0x08, 0x0f & (BDR >> 16)); - - ves1x93_writereg (state, 0x09, BDRI); - ves1x93_writereg (state, 0x20, ADCONF); - ves1x93_writereg (state, 0x21, FCONF); - - AGCR = state->init_1x93_tab[0x05]; - if (state->config->invert_pwm) - AGCR |= 0x20; - - if (srate < 6000000) - AGCR |= 0x80; - else - AGCR &= ~0x80; - - ves1x93_writereg (state, 0x05, AGCR); - - /* ves1993 hates this, will lose lock */ - if (state->demod_type != DEMOD_VES1993) - ves1x93_clr_bit (state); - - return 0; -} - -static int ves1x93_init (struct dvb_frontend* fe) -{ - struct ves1x93_state* state = fe->demodulator_priv; - int i; - int val; - - dprintk("%s: init chip\n", __func__); - - for (i = 0; i < state->tab_size; i++) { - if (state->init_1x93_wtab[i]) { - val = state->init_1x93_tab[i]; - - if (state->config->invert_pwm && (i == 0x05)) val |= 0x20; /* invert PWM */ - ves1x93_writereg (state, i, val); - } - } - - return 0; -} - -static int ves1x93_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage) -{ - struct ves1x93_state* state = fe->demodulator_priv; - - switch (voltage) { - case SEC_VOLTAGE_13: - return ves1x93_writereg (state, 0x1f, 0x20); - case SEC_VOLTAGE_18: - return ves1x93_writereg (state, 0x1f, 0x30); - case SEC_VOLTAGE_OFF: - return ves1x93_writereg (state, 0x1f, 0x00); - default: - return -EINVAL; - } -} - -static int ves1x93_read_status(struct dvb_frontend* fe, fe_status_t* status) -{ - struct ves1x93_state* state = fe->demodulator_priv; - - u8 sync = ves1x93_readreg (state, 0x0e); - - /* - * The ves1893 sometimes returns sync values that make no sense, - * because, e.g., the SIGNAL bit is 0, while some of the higher - * bits are 1 (and how can there be a CARRIER w/o a SIGNAL?). - * Tests showed that the VITERBI and SYNC bits are returned - * reliably, while the SIGNAL and CARRIER bits ar sometimes wrong. - * If such a case occurs, we read the value again, until we get a - * valid value. - */ - int maxtry = 10; /* just for safety - let's not get stuck here */ - while ((sync & 0x03) != 0x03 && (sync & 0x0c) && maxtry--) { - msleep(10); - sync = ves1x93_readreg (state, 0x0e); - } - - *status = 0; - - if (sync & 1) - *status |= FE_HAS_SIGNAL; - - if (sync & 2) - *status |= FE_HAS_CARRIER; - - if (sync & 4) - *status |= FE_HAS_VITERBI; - - if (sync & 8) - *status |= FE_HAS_SYNC; - - if ((sync & 0x1f) == 0x1f) - *status |= FE_HAS_LOCK; - - return 0; -} - -static int ves1x93_read_ber(struct dvb_frontend* fe, u32* ber) -{ - struct ves1x93_state* state = fe->demodulator_priv; - - *ber = ves1x93_readreg (state, 0x15); - *ber |= (ves1x93_readreg (state, 0x16) << 8); - *ber |= ((ves1x93_readreg (state, 0x17) & 0x0F) << 16); - *ber *= 10; - - return 0; -} - -static int ves1x93_read_signal_strength(struct dvb_frontend* fe, u16* strength) -{ - struct ves1x93_state* state = fe->demodulator_priv; - - u8 signal = ~ves1x93_readreg (state, 0x0b); - *strength = (signal << 8) | signal; - - return 0; -} - -static int ves1x93_read_snr(struct dvb_frontend* fe, u16* snr) -{ - struct ves1x93_state* state = fe->demodulator_priv; - - u8 _snr = ~ves1x93_readreg (state, 0x1c); - *snr = (_snr << 8) | _snr; - - return 0; -} - -static int ves1x93_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) -{ - struct ves1x93_state* state = fe->demodulator_priv; - - *ucblocks = ves1x93_readreg (state, 0x18) & 0x7f; - - if (*ucblocks == 0x7f) - *ucblocks = 0xffffffff; /* counter overflow... */ - - ves1x93_writereg (state, 0x18, 0x00); /* reset the counter */ - ves1x93_writereg (state, 0x18, 0x80); /* dto. */ - - return 0; -} - -static int ves1x93_set_frontend(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *p = &fe->dtv_property_cache; - struct ves1x93_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); - } - ves1x93_set_inversion (state, p->inversion); - ves1x93_set_fec(state, p->fec_inner); - ves1x93_set_symbolrate(state, p->symbol_rate); - state->inversion = p->inversion; - state->frequency = p->frequency; - - return 0; -} - -static int ves1x93_get_frontend(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *p = &fe->dtv_property_cache; - struct ves1x93_state* state = fe->demodulator_priv; - int afc; - - afc = ((int)((char)(ves1x93_readreg (state, 0x0a) << 1)))/2; - afc = (afc * (int)(p->symbol_rate/1000/8))/16; - - p->frequency = state->frequency - afc; - - /* - * inversion indicator is only valid - * if auto inversion was used - */ - if (state->inversion == INVERSION_AUTO) - p->inversion = (ves1x93_readreg (state, 0x0f) & 2) ? - INVERSION_OFF : INVERSION_ON; - p->fec_inner = ves1x93_get_fec(state); - /* XXX FIXME: timing offset !! */ - - return 0; -} - -static int ves1x93_sleep(struct dvb_frontend* fe) -{ - struct ves1x93_state* state = fe->demodulator_priv; - - return ves1x93_writereg (state, 0x00, 0x08); -} - -static void ves1x93_release(struct dvb_frontend* fe) -{ - struct ves1x93_state* state = fe->demodulator_priv; - kfree(state); -} - -static int ves1x93_i2c_gate_ctrl(struct dvb_frontend* fe, int enable) -{ - struct ves1x93_state* state = fe->demodulator_priv; - - if (enable) { - return ves1x93_writereg(state, 0x00, 0x11); - } else { - return ves1x93_writereg(state, 0x00, 0x01); - } -} - -static struct dvb_frontend_ops ves1x93_ops; - -struct dvb_frontend* ves1x93_attach(const struct ves1x93_config* config, - struct i2c_adapter* i2c) -{ - struct ves1x93_state* state = NULL; - u8 identity; - - /* allocate memory for the internal state */ - state = kzalloc(sizeof(struct ves1x93_state), GFP_KERNEL); - if (state == NULL) goto error; - - /* setup the state */ - state->config = config; - state->i2c = i2c; - state->inversion = INVERSION_OFF; - - /* check if the demod is there + identify it */ - identity = ves1x93_readreg(state, 0x1e); - switch (identity) { - case 0xdc: /* VES1893A rev1 */ - printk("ves1x93: Detected ves1893a rev1\n"); - state->demod_type = DEMOD_VES1893; - state->init_1x93_tab = init_1893_tab; - state->init_1x93_wtab = init_1893_wtab; - state->tab_size = sizeof(init_1893_tab); - break; - - case 0xdd: /* VES1893A rev2 */ - printk("ves1x93: Detected ves1893a rev2\n"); - state->demod_type = DEMOD_VES1893; - state->init_1x93_tab = init_1893_tab; - state->init_1x93_wtab = init_1893_wtab; - state->tab_size = sizeof(init_1893_tab); - break; - - case 0xde: /* VES1993 */ - printk("ves1x93: Detected ves1993\n"); - state->demod_type = DEMOD_VES1993; - state->init_1x93_tab = init_1993_tab; - state->init_1x93_wtab = init_1993_wtab; - state->tab_size = sizeof(init_1993_tab); - break; - - default: - goto error; - } - - /* create dvb_frontend */ - memcpy(&state->frontend.ops, &ves1x93_ops, sizeof(struct dvb_frontend_ops)); - state->frontend.demodulator_priv = state; - return &state->frontend; - -error: - kfree(state); - return NULL; -} - -static struct dvb_frontend_ops ves1x93_ops = { - .delsys = { SYS_DVBS }, - .info = { - .name = "VLSI VES1x93 DVB-S", - .frequency_min = 950000, - .frequency_max = 2150000, - .frequency_stepsize = 125, /* kHz for QPSK frontends */ - .frequency_tolerance = 29500, - .symbol_rate_min = 1000000, - .symbol_rate_max = 45000000, - /* .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_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | - FE_CAN_QPSK - }, - - .release = ves1x93_release, - - .init = ves1x93_init, - .sleep = ves1x93_sleep, - .i2c_gate_ctrl = ves1x93_i2c_gate_ctrl, - - .set_frontend = ves1x93_set_frontend, - .get_frontend = ves1x93_get_frontend, - - .read_status = ves1x93_read_status, - .read_ber = ves1x93_read_ber, - .read_signal_strength = ves1x93_read_signal_strength, - .read_snr = ves1x93_read_snr, - .read_ucblocks = ves1x93_read_ucblocks, - - .set_voltage = ves1x93_set_voltage, -}; - -module_param(debug, int, 0644); - -MODULE_DESCRIPTION("VLSI VES1x93 DVB-S Demodulator driver"); -MODULE_AUTHOR("Ralph Metzler"); -MODULE_LICENSE("GPL"); - -EXPORT_SYMBOL(ves1x93_attach); |