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Diffstat (limited to 'drivers/media/dvb/frontends/tda10023.c')
-rw-r--r--drivers/media/dvb/frontends/tda10023.c610
1 files changed, 0 insertions, 610 deletions
diff --git a/drivers/media/dvb/frontends/tda10023.c b/drivers/media/dvb/frontends/tda10023.c
deleted file mode 100644
index ca1e0d54b69a..000000000000
--- a/drivers/media/dvb/frontends/tda10023.c
+++ /dev/null
@@ -1,610 +0,0 @@
-/*
- TDA10023 - DVB-C decoder
- (as used in Philips CU1216-3 NIM and the Reelbox DVB-C tuner card)
-
- Copyright (C) 2005 Georg Acher, BayCom GmbH (acher at baycom dot de)
- Copyright (c) 2006 Hartmut Birr (e9hack at gmail dot com)
-
- Remotely based on tda10021.c
- Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
- Copyright (C) 2004 Markus Schulz <msc@antzsystem.de>
- Support for TDA10021
-
- 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/delay.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-
-#include <asm/div64.h>
-
-#include "dvb_frontend.h"
-#include "tda1002x.h"
-
-#define REG0_INIT_VAL 0x23
-
-struct tda10023_state {
- struct i2c_adapter* i2c;
- /* configuration settings */
- const struct tda10023_config *config;
- struct dvb_frontend frontend;
-
- u8 pwm;
- u8 reg0;
-
- /* clock settings */
- u32 xtal;
- u8 pll_m;
- u8 pll_p;
- u8 pll_n;
- u32 sysclk;
-};
-
-#define dprintk(x...)
-
-static int verbose;
-
-static u8 tda10023_readreg (struct tda10023_state* state, u8 reg)
-{
- 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 } };
- int ret;
-
- ret = i2c_transfer (state->i2c, msg, 2);
- if (ret != 2) {
- int num = state->frontend.dvb ? state->frontend.dvb->num : -1;
- printk(KERN_ERR "DVB: TDA10023(%d): %s: readreg error "
- "(reg == 0x%02x, ret == %i)\n",
- num, __func__, reg, ret);
- }
- return b1[0];
-}
-
-static int tda10023_writereg (struct tda10023_state* state, u8 reg, u8 data)
-{
- u8 buf[] = { reg, data };
- struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
- int ret;
-
- ret = i2c_transfer (state->i2c, &msg, 1);
- if (ret != 1) {
- int num = state->frontend.dvb ? state->frontend.dvb->num : -1;
- printk(KERN_ERR "DVB: TDA10023(%d): %s, writereg error "
- "(reg == 0x%02x, val == 0x%02x, ret == %i)\n",
- num, __func__, reg, data, ret);
- }
- return (ret != 1) ? -EREMOTEIO : 0;
-}
-
-
-static int tda10023_writebit (struct tda10023_state* state, u8 reg, u8 mask,u8 data)
-{
- if (mask==0xff)
- return tda10023_writereg(state, reg, data);
- else {
- u8 val;
- val=tda10023_readreg(state,reg);
- val&=~mask;
- val|=(data&mask);
- return tda10023_writereg(state, reg, val);
- }
-}
-
-static void tda10023_writetab(struct tda10023_state* state, u8* tab)
-{
- u8 r,m,v;
- while (1) {
- r=*tab++;
- m=*tab++;
- v=*tab++;
- if (r==0xff) {
- if (m==0xff)
- break;
- else
- msleep(m);
- }
- else
- tda10023_writebit(state,r,m,v);
- }
-}
-
-//get access to tuner
-static int lock_tuner(struct tda10023_state* state)
-{
- u8 buf[2] = { 0x0f, 0xc0 };
- struct i2c_msg msg = {.addr=state->config->demod_address, .flags=0, .buf=buf, .len=2};
-
- if(i2c_transfer(state->i2c, &msg, 1) != 1)
- {
- printk("tda10023: lock tuner fails\n");
- return -EREMOTEIO;
- }
- return 0;
-}
-
-//release access from tuner
-static int unlock_tuner(struct tda10023_state* state)
-{
- u8 buf[2] = { 0x0f, 0x40 };
- struct i2c_msg msg_post={.addr=state->config->demod_address, .flags=0, .buf=buf, .len=2};
-
- if(i2c_transfer(state->i2c, &msg_post, 1) != 1)
- {
- printk("tda10023: unlock tuner fails\n");
- return -EREMOTEIO;
- }
- return 0;
-}
-
-static int tda10023_setup_reg0 (struct tda10023_state* state, u8 reg0)
-{
- reg0 |= state->reg0 & 0x63;
-
- tda10023_writereg (state, 0x00, reg0 & 0xfe);
- tda10023_writereg (state, 0x00, reg0 | 0x01);
-
- state->reg0 = reg0;
- return 0;
-}
-
-static int tda10023_set_symbolrate (struct tda10023_state* state, u32 sr)
-{
- s32 BDR;
- s32 BDRI;
- s16 SFIL=0;
- u16 NDEC = 0;
-
- /* avoid floating point operations multiplying syscloc and divider
- by 10 */
- u32 sysclk_x_10 = state->sysclk * 10;
-
- if (sr < (u32)(sysclk_x_10/984)) {
- NDEC=3;
- SFIL=1;
- } else if (sr < (u32)(sysclk_x_10/640)) {
- NDEC=3;
- SFIL=0;
- } else if (sr < (u32)(sysclk_x_10/492)) {
- NDEC=2;
- SFIL=1;
- } else if (sr < (u32)(sysclk_x_10/320)) {
- NDEC=2;
- SFIL=0;
- } else if (sr < (u32)(sysclk_x_10/246)) {
- NDEC=1;
- SFIL=1;
- } else if (sr < (u32)(sysclk_x_10/160)) {
- NDEC=1;
- SFIL=0;
- } else if (sr < (u32)(sysclk_x_10/123)) {
- NDEC=0;
- SFIL=1;
- }
-
- BDRI = (state->sysclk)*16;
- BDRI>>=NDEC;
- BDRI +=sr/2;
- BDRI /=sr;
-
- if (BDRI>255)
- BDRI=255;
-
- {
- u64 BDRX;
-
- BDRX=1<<(24+NDEC);
- BDRX*=sr;
- do_div(BDRX, state->sysclk); /* BDRX/=SYSCLK; */
-
- BDR=(s32)BDRX;
- }
- dprintk("Symbolrate %i, BDR %i BDRI %i, NDEC %i\n",
- sr, BDR, BDRI, NDEC);
- tda10023_writebit (state, 0x03, 0xc0, NDEC<<6);
- tda10023_writereg (state, 0x0a, BDR&255);
- tda10023_writereg (state, 0x0b, (BDR>>8)&255);
- tda10023_writereg (state, 0x0c, (BDR>>16)&31);
- tda10023_writereg (state, 0x0d, BDRI);
- tda10023_writereg (state, 0x3d, (SFIL<<7));
- return 0;
-}
-
-static int tda10023_init (struct dvb_frontend *fe)
-{
- struct tda10023_state* state = fe->demodulator_priv;
- u8 tda10023_inittab[] = {
-/* reg mask val */
-/* 000 */ 0x2a, 0xff, 0x02, /* PLL3, Bypass, Power Down */
-/* 003 */ 0xff, 0x64, 0x00, /* Sleep 100ms */
-/* 006 */ 0x2a, 0xff, 0x03, /* PLL3, Bypass, Power Down */
-/* 009 */ 0xff, 0x64, 0x00, /* Sleep 100ms */
- /* PLL1 */
-/* 012 */ 0x28, 0xff, (state->pll_m-1),
- /* PLL2 */
-/* 015 */ 0x29, 0xff, ((state->pll_p-1)<<6)|(state->pll_n-1),
- /* GPR FSAMPLING=1 */
-/* 018 */ 0x00, 0xff, REG0_INIT_VAL,
-/* 021 */ 0x2a, 0xff, 0x08, /* PLL3 PSACLK=1 */
-/* 024 */ 0xff, 0x64, 0x00, /* Sleep 100ms */
-/* 027 */ 0x1f, 0xff, 0x00, /* RESET */
-/* 030 */ 0xff, 0x64, 0x00, /* Sleep 100ms */
-/* 033 */ 0xe6, 0x0c, 0x04, /* RSCFG_IND */
-/* 036 */ 0x10, 0xc0, 0x80, /* DECDVBCFG1 PBER=1 */
-
-/* 039 */ 0x0e, 0xff, 0x82, /* GAIN1 */
-/* 042 */ 0x03, 0x08, 0x08, /* CLKCONF DYN=1 */
-/* 045 */ 0x2e, 0xbf, 0x30, /* AGCCONF2 TRIAGC=0,POSAGC=ENAGCIF=1
- PPWMTUN=0 PPWMIF=0 */
-/* 048 */ 0x01, 0xff, 0x30, /* AGCREF */
-/* 051 */ 0x1e, 0x84, 0x84, /* CONTROL SACLK_ON=1 */
-/* 054 */ 0x1b, 0xff, 0xc8, /* ADC TWOS=1 */
-/* 057 */ 0x3b, 0xff, 0xff, /* IFMAX */
-/* 060 */ 0x3c, 0xff, 0x00, /* IFMIN */
-/* 063 */ 0x34, 0xff, 0x00, /* PWMREF */
-/* 066 */ 0x35, 0xff, 0xff, /* TUNMAX */
-/* 069 */ 0x36, 0xff, 0x00, /* TUNMIN */
-/* 072 */ 0x06, 0xff, 0x7f, /* EQCONF1 POSI=7 ENADAPT=ENEQUAL=DFE=1 */
-/* 075 */ 0x1c, 0x30, 0x30, /* EQCONF2 STEPALGO=SGNALGO=1 */
-/* 078 */ 0x37, 0xff, 0xf6, /* DELTAF_LSB */
-/* 081 */ 0x38, 0xff, 0xff, /* DELTAF_MSB */
-/* 084 */ 0x02, 0xff, 0x93, /* AGCCONF1 IFS=1 KAGCIF=2 KAGCTUN=3 */
-/* 087 */ 0x2d, 0xff, 0xf6, /* SWEEP SWPOS=1 SWDYN=7 SWSTEP=1 SWLEN=2 */
-/* 090 */ 0x04, 0x10, 0x00, /* SWRAMP=1 */
-/* 093 */ 0x12, 0xff, TDA10023_OUTPUT_MODE_PARALLEL_B, /*
- INTP1 POCLKP=1 FEL=1 MFS=0 */
-/* 096 */ 0x2b, 0x01, 0xa1, /* INTS1 */
-/* 099 */ 0x20, 0xff, 0x04, /* INTP2 SWAPP=? MSBFIRSTP=? INTPSEL=? */
-/* 102 */ 0x2c, 0xff, 0x0d, /* INTP/S TRIP=0 TRIS=0 */
-/* 105 */ 0xc4, 0xff, 0x00,
-/* 108 */ 0xc3, 0x30, 0x00,
-/* 111 */ 0xb5, 0xff, 0x19, /* ERAGC_THD */
-/* 114 */ 0x00, 0x03, 0x01, /* GPR, CLBS soft reset */
-/* 117 */ 0x00, 0x03, 0x03, /* GPR, CLBS soft reset */
-/* 120 */ 0xff, 0x64, 0x00, /* Sleep 100ms */
-/* 123 */ 0xff, 0xff, 0xff
-};
- dprintk("DVB: TDA10023(%d): init chip\n", fe->dvb->num);
-
- /* override default values if set in config */
- if (state->config->deltaf) {
- tda10023_inittab[80] = (state->config->deltaf & 0xff);
- tda10023_inittab[83] = (state->config->deltaf >> 8);
- }
-
- if (state->config->output_mode)
- tda10023_inittab[95] = state->config->output_mode;
-
- tda10023_writetab(state, tda10023_inittab);
-
- return 0;
-}
-
-struct qam_params {
- u8 qam, lockthr, mseth, aref, agcrefnyq, eragnyq_thd;
-};
-
-static int tda10023_set_parameters(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- u32 delsys = c->delivery_system;
- unsigned qam = c->modulation;
- bool is_annex_c;
- struct tda10023_state* state = fe->demodulator_priv;
- static const struct qam_params qam_params[] = {
- /* Modulation QAM LOCKTHR MSETH AREF AGCREFNYQ ERAGCNYQ_THD */
- [QPSK] = { (5<<2), 0x78, 0x8c, 0x96, 0x78, 0x4c },
- [QAM_16] = { (0<<2), 0x87, 0xa2, 0x91, 0x8c, 0x57 },
- [QAM_32] = { (1<<2), 0x64, 0x74, 0x96, 0x8c, 0x57 },
- [QAM_64] = { (2<<2), 0x46, 0x43, 0x6a, 0x6a, 0x44 },
- [QAM_128] = { (3<<2), 0x36, 0x34, 0x7e, 0x78, 0x4c },
- [QAM_256] = { (4<<2), 0x26, 0x23, 0x6c, 0x5c, 0x3c },
- };
-
- switch (delsys) {
- case SYS_DVBC_ANNEX_A:
- is_annex_c = false;
- break;
- case SYS_DVBC_ANNEX_C:
- is_annex_c = true;
- break;
- default:
- return -EINVAL;
- }
-
- /*
- * gcc optimizes the code bellow the same way as it would code:
- * "if (qam > 5) return -EINVAL;"
- * Yet, the code is clearer, as it shows what QAM standards are
- * supported by the driver, and avoids the usage of magic numbers on
- * it.
- */
- switch (qam) {
- case QPSK:
- case QAM_16:
- case QAM_32:
- case QAM_64:
- case QAM_128:
- case QAM_256:
- break;
- default:
- return -EINVAL;
- }
-
- 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);
- }
-
- tda10023_set_symbolrate(state, c->symbol_rate);
- tda10023_writereg(state, 0x05, qam_params[qam].lockthr);
- tda10023_writereg(state, 0x08, qam_params[qam].mseth);
- tda10023_writereg(state, 0x09, qam_params[qam].aref);
- tda10023_writereg(state, 0xb4, qam_params[qam].agcrefnyq);
- tda10023_writereg(state, 0xb6, qam_params[qam].eragnyq_thd);
-#if 0
- tda10023_writereg(state, 0x04, (c->inversion ? 0x12 : 0x32));
- tda10023_writebit(state, 0x04, 0x60, (c->inversion ? 0 : 0x20));
-#endif
- tda10023_writebit(state, 0x04, 0x40, 0x40);
-
- if (is_annex_c)
- tda10023_writebit(state, 0x3d, 0xfc, 0x03);
- else
- tda10023_writebit(state, 0x3d, 0xfc, 0x02);
-
- tda10023_setup_reg0(state, qam_params[qam].qam);
-
- return 0;
-}
-
-static int tda10023_read_status(struct dvb_frontend* fe, fe_status_t* status)
-{
- struct tda10023_state* state = fe->demodulator_priv;
- int sync;
-
- *status = 0;
-
- //0x11[1] == CARLOCK -> Carrier locked
- //0x11[2] == FSYNC -> Frame synchronisation
- //0x11[3] == FEL -> Front End locked
- //0x11[6] == NODVB -> DVB Mode Information
- sync = tda10023_readreg (state, 0x11);
-
- if (sync & 2)
- *status |= FE_HAS_SIGNAL|FE_HAS_CARRIER;
-
- if (sync & 4)
- *status |= FE_HAS_SYNC|FE_HAS_VITERBI;
-
- if (sync & 8)
- *status |= FE_HAS_LOCK;
-
- return 0;
-}
-
-static int tda10023_read_ber(struct dvb_frontend* fe, u32* ber)
-{
- struct tda10023_state* state = fe->demodulator_priv;
- u8 a,b,c;
- a=tda10023_readreg(state, 0x14);
- b=tda10023_readreg(state, 0x15);
- c=tda10023_readreg(state, 0x16)&0xf;
- tda10023_writebit (state, 0x10, 0xc0, 0x00);
-
- *ber = a | (b<<8)| (c<<16);
- return 0;
-}
-
-static int tda10023_read_signal_strength(struct dvb_frontend* fe, u16* strength)
-{
- struct tda10023_state* state = fe->demodulator_priv;
- u8 ifgain=tda10023_readreg(state, 0x2f);
-
- u16 gain = ((255-tda10023_readreg(state, 0x17))) + (255-ifgain)/16;
- // Max raw value is about 0xb0 -> Normalize to >0xf0 after 0x90
- if (gain>0x90)
- gain=gain+2*(gain-0x90);
- if (gain>255)
- gain=255;
-
- *strength = (gain<<8)|gain;
- return 0;
-}
-
-static int tda10023_read_snr(struct dvb_frontend* fe, u16* snr)
-{
- struct tda10023_state* state = fe->demodulator_priv;
-
- u8 quality = ~tda10023_readreg(state, 0x18);
- *snr = (quality << 8) | quality;
- return 0;
-}
-
-static int tda10023_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
-{
- struct tda10023_state* state = fe->demodulator_priv;
- u8 a,b,c,d;
- a= tda10023_readreg (state, 0x74);
- b= tda10023_readreg (state, 0x75);
- c= tda10023_readreg (state, 0x76);
- d= tda10023_readreg (state, 0x77);
- *ucblocks = a | (b<<8)|(c<<16)|(d<<24);
-
- tda10023_writebit (state, 0x10, 0x20,0x00);
- tda10023_writebit (state, 0x10, 0x20,0x20);
- tda10023_writebit (state, 0x13, 0x01, 0x00);
-
- return 0;
-}
-
-static int tda10023_get_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct tda10023_state* state = fe->demodulator_priv;
- int sync,inv;
- s8 afc = 0;
-
- sync = tda10023_readreg(state, 0x11);
- afc = tda10023_readreg(state, 0x19);
- inv = tda10023_readreg(state, 0x04);
-
- if (verbose) {
- /* AFC only valid when carrier has been recovered */
- printk(sync & 2 ? "DVB: TDA10023(%d): AFC (%d) %dHz\n" :
- "DVB: TDA10023(%d): [AFC (%d) %dHz]\n",
- state->frontend.dvb->num, afc,
- -((s32)p->symbol_rate * afc) >> 10);
- }
-
- p->inversion = (inv&0x20?0:1);
- p->modulation = ((state->reg0 >> 2) & 7) + QAM_16;
-
- p->fec_inner = FEC_NONE;
- p->frequency = ((p->frequency + 31250) / 62500) * 62500;
-
- if (sync & 2)
- p->frequency -= ((s32)p->symbol_rate * afc) >> 10;
-
- return 0;
-}
-
-static int tda10023_sleep(struct dvb_frontend* fe)
-{
- struct tda10023_state* state = fe->demodulator_priv;
-
- tda10023_writereg (state, 0x1b, 0x02); /* pdown ADC */
- tda10023_writereg (state, 0x00, 0x80); /* standby */
-
- return 0;
-}
-
-static int tda10023_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
-{
- struct tda10023_state* state = fe->demodulator_priv;
-
- if (enable) {
- lock_tuner(state);
- } else {
- unlock_tuner(state);
- }
- return 0;
-}
-
-static void tda10023_release(struct dvb_frontend* fe)
-{
- struct tda10023_state* state = fe->demodulator_priv;
- kfree(state);
-}
-
-static struct dvb_frontend_ops tda10023_ops;
-
-struct dvb_frontend *tda10023_attach(const struct tda10023_config *config,
- struct i2c_adapter *i2c,
- u8 pwm)
-{
- struct tda10023_state* state = NULL;
-
- /* allocate memory for the internal state */
- state = kzalloc(sizeof(struct tda10023_state), GFP_KERNEL);
- if (state == NULL) goto error;
-
- /* setup the state */
- state->config = config;
- state->i2c = i2c;
-
- /* wakeup if in standby */
- tda10023_writereg (state, 0x00, 0x33);
- /* check if the demod is there */
- if ((tda10023_readreg(state, 0x1a) & 0xf0) != 0x70) goto error;
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &tda10023_ops, sizeof(struct dvb_frontend_ops));
- state->pwm = pwm;
- state->reg0 = REG0_INIT_VAL;
- if (state->config->xtal) {
- state->xtal = state->config->xtal;
- state->pll_m = state->config->pll_m;
- state->pll_p = state->config->pll_p;
- state->pll_n = state->config->pll_n;
- } else {
- /* set default values if not defined in config */
- state->xtal = 28920000;
- state->pll_m = 8;
- state->pll_p = 4;
- state->pll_n = 1;
- }
-
- /* calc sysclk */
- state->sysclk = (state->xtal * state->pll_m / \
- (state->pll_n * state->pll_p));
-
- state->frontend.ops.info.symbol_rate_min = (state->sysclk/2)/64;
- state->frontend.ops.info.symbol_rate_max = (state->sysclk/2)/4;
-
- dprintk("DVB: TDA10023 %s: xtal:%d pll_m:%d pll_p:%d pll_n:%d\n",
- __func__, state->xtal, state->pll_m, state->pll_p,
- state->pll_n);
-
- state->frontend.demodulator_priv = state;
- return &state->frontend;
-
-error:
- kfree(state);
- return NULL;
-}
-
-static struct dvb_frontend_ops tda10023_ops = {
- .delsys = { SYS_DVBC_ANNEX_A, SYS_DVBC_ANNEX_C },
- .info = {
- .name = "Philips TDA10023 DVB-C",
- .frequency_stepsize = 62500,
- .frequency_min = 47000000,
- .frequency_max = 862000000,
- .symbol_rate_min = 0, /* set in tda10023_attach */
- .symbol_rate_max = 0, /* set in tda10023_attach */
- .caps = 0x400 | //FE_CAN_QAM_4
- FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 |
- FE_CAN_QAM_128 | FE_CAN_QAM_256 |
- FE_CAN_FEC_AUTO
- },
-
- .release = tda10023_release,
-
- .init = tda10023_init,
- .sleep = tda10023_sleep,
- .i2c_gate_ctrl = tda10023_i2c_gate_ctrl,
-
- .set_frontend = tda10023_set_parameters,
- .get_frontend = tda10023_get_frontend,
- .read_status = tda10023_read_status,
- .read_ber = tda10023_read_ber,
- .read_signal_strength = tda10023_read_signal_strength,
- .read_snr = tda10023_read_snr,
- .read_ucblocks = tda10023_read_ucblocks,
-};
-
-
-MODULE_DESCRIPTION("Philips TDA10023 DVB-C demodulator driver");
-MODULE_AUTHOR("Georg Acher, Hartmut Birr");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(tda10023_attach);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 04:49:28 +0100