/* Universal driver for STV0299/TDA5059/SL1935 based DVB QPSK frontends Alps BSRU6, LG TDQB-S00x Copyright (C) 2001-2002 Convergence Integrated Media GmbH , , Philips SU1278/SH Copyright (C) 2002 by Peter Schildmann LG TDQF-S001F Copyright (C) 2002 Felix Domke & Andreas Oberritter 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 #include #include "dvb_frontend.h" static int debug = 0; #define dprintk if (debug) printk /* frontend types */ #define UNKNOWN_FRONTEND -1 #define PHILIPS_SU1278SH 0 #define ALPS_BSRU6 1 #define LG_TDQF_S001F 2 /* Master Clock = 88 MHz */ #define M_CLK (88000000UL) static struct dvb_frontend_info uni0299_info = { name: "STV0299/TSA5059/SL1935 based", type: FE_QPSK, frequency_min: 950000, frequency_max: 2150000, frequency_stepsize: 125, /* kHz for QPSK frontends */ frequency_tolerance: M_CLK/2000, symbol_rate_min: 1000000, symbol_rate_max: 45000000, symbol_rate_tolerance: 500, /* ppm */ notifier_delay: 0, 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_QPSK | FE_CAN_FEC_AUTO | FE_CAN_INVERSION_AUTO | FE_CAN_CLEAN_SETUP }; static u8 init_tab [] = { /* clock registers */ 0x01, 0x15, /* K = 0, DIRCLK = 0, M = 0x15 */ 0x02, 0x30, /* STDBY = 0, VCO = 0 (ON), SERCLK = 0, P = 0 */ /* f_VCO = 4MHz * 4 * (M+1) / (K+1) = 352 MHz */ 0x03, 0x00, /* auxiliary clock not used */ 0x04, 0x7d, /* F22FR = 0x7d */ /* F22 = f_VCO / 128 / 0x7d = 22 kHz */ /* I2C bus repeater */ 0x05, 0x35, /* I2CT = 0, SCLT = 1, SDAT = 1 */ /* general purpose DAC registers */ 0x06, 0x40, /* DAC not used, set to high impendance mode */ 0x07, 0x00, /* DAC LSB */ /* DiSEqC registers */ 0x08, 0x40, /* DiSEqC off */ 0x09, 0x00, /* FIFO */ /* Input/Output configuration register */ 0x0c, 0x51, /* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */ /* OP0 ctl = Normal, OP0 val = 1 (18 V) */ /* Nyquist filter = 00, QPSK reverse = 0 */ /* AGC1 control register */ 0x0d, 0x82, /* DC offset compensation = ON, beta_agc1 = 2 */ /* Timing loop register */ 0x0e, 0x23, /* alpha_tmg = 2, beta_tmg = 3 */ 0x10, 0x3f, // AGC2 0x3d 0x11, 0x84, 0x12, 0xb5, // Lock detect: -64 Carrier freq detect:on 0x13, 0xb6, // alpha_car b:4 a:0 noise est:256ks derot:on 0x14, 0x93, // beat carc:0 d:0 e:0xf phase detect algo: 1 0x15, 0xc9, // lock detector threshold 0x16, 0x1d, /* AGC1 integrator value */ 0x17, 0x00, 0x18, 0x14, 0x19, 0xf2, 0x1a, 0x11, 0x1b, 0x9c, 0x1c, 0x00, 0x1d, 0x00, 0x1e, 0x0b, 0x1f, 0x50, 0x20, 0x00, 0x21, 0x00, 0x22, 0x00, 0x23, 0x00, 0x24, 0xff, 0x25, 0xff, 0x26, 0xff, 0x28, 0x00, // out imp: normal out type: parallel FEC mode:0 0x29, 0x1e, // 1/2 threshold 0x2a, 0x14, // 2/3 threshold 0x2b, 0x0f, // 3/4 threshold 0x2c, 0x09, // 5/6 threshold 0x2d, 0x05, // 7/8 threshold 0x2e, 0x01, 0x31, 0x1f, // test all FECs 0x32, 0x19, // viterbi and synchro search 0x33, 0xfc, // rs control 0x34, 0x93, // error control 0x0b, 0x00, 0x27, 0x00, 0x2f, 0x00, 0x30, 0x00, 0x35, 0x00, 0x36, 0x00, 0x37, 0x00, 0x38, 0x00, 0x39, 0x00, 0x3a, 0x00, 0x3b, 0x00, 0x3c, 0x00, 0x3d, 0x00, 0x3e, 0x00, 0x3f, 0x00, 0x40, 0x00, 0x41, 0x00, 0x42, 0x00, 0x43, 0x00, 0x44, 0x00, 0x45, 0x00, 0x46, 0x00, 0x47, 0x00, 0x48, 0x00, 0x49, 0x00, 0x4a, 0x00, 0x4b, 0x00, 0x4c, 0x00, 0x4d, 0x00, 0x4e, 0x00, 0x4f, 0x00 }; static int stv0299_writereg (struct dvb_i2c_bus *i2c, u8 reg, u8 data) { int ret; u8 buf [] = { reg, data }; struct i2c_msg msg = { addr: 0x68, flags: 0, buf: buf, len: 2 }; dprintk ("%s\n", __FUNCTION__); ret = i2c->xfer (i2c, &msg, 1); if (ret != 1) dprintk("%s: writereg error (reg == 0x%02x, val == 0x%02x, ret == %i)\n", __FUNCTION__, reg, data, ret); return (ret != 1) ? -1 : 0; } static u8 stv0299_readreg (struct dvb_i2c_bus *i2c, u8 reg) { int ret; u8 b0 [] = { reg }; u8 b1 [] = { 0 }; struct i2c_msg msg [] = { { addr: 0x68, flags: 0, buf: b0, len: 1 }, { addr: 0x68, flags: I2C_M_RD, buf: b1, len: 1 } }; dprintk ("%s\n", __FUNCTION__); ret = i2c->xfer (i2c, msg, 2); if (ret != 2) dprintk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret); return b1[0]; } static int stv0299_readregs (struct dvb_i2c_bus *i2c, u8 reg1, u8 *b, u8 len) { int ret; struct i2c_msg msg [] = { { addr: 0x68, flags: 0, buf: ®1, len: 1 }, { addr: 0x68, flags: I2C_M_RD, buf: b, len: len } }; dprintk ("%s\n", __FUNCTION__); ret = i2c->xfer (i2c, msg, 2); if (ret != 2) dprintk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret); return ret == 2 ? 0 : -1; } static int pll_write (struct dvb_i2c_bus *i2c, u8 data [4], int ftype) { int ret; u8 rpt1 [] = { 0x05, 0xb5 }; /* enable i2c repeater on stv0299 */ /* TSA5059 i2c-bus address */ u8 addr = (ftype == PHILIPS_SU1278SH) ? 0x60 : 0x61; struct i2c_msg msg [] = {{ addr: 0x68, flags: 0, buf: rpt1, len: 2 }, { addr: addr, flags: 0, buf: data, len: 4 }}; dprintk ("%s\n", __FUNCTION__); if (ftype == LG_TDQF_S001F) { ret = i2c->xfer (i2c, &msg[0], 1); ret += i2c->xfer (i2c, &msg[1], 1); } else { ret = i2c->xfer (i2c, msg, 2); } if (ret != 2) dprintk("%s: i/o error (ret == %i)\n", __FUNCTION__, ret); return (ret != 2) ? -1 : 0; } static int sl1935_set_tv_freq (struct dvb_i2c_bus *i2c, u32 freq, int ftype) { u8 buf[4]; u32 div; u32 ratios[] = { 2000, 1000, 500, 250, 125 }; u8 ratio; for (ratio = 4; ratio > 0; ratio--) if ((freq / ratios[ratio]) <= 0x3fff) break; div = freq / ratios[ratio]; buf[0] = (freq >> 8) & 0x7f; buf[1] = freq & 0xff; buf[2] = 0x80 | ratio; if (freq < 1531000) buf[3] = 0x10; else buf[3] = 0x00; return pll_write (i2c, buf, ftype); } /** * set up the downconverter frequency divisor for a * reference clock comparision frequency of 125 kHz. */ static int tsa5059_set_tv_freq (struct dvb_i2c_bus *i2c, u32 freq, int ftype) { u32 div = freq / 125; u8 buf[4] = { (div >> 8) & 0x7f, div & 0xff, 0x84 }; if (ftype == PHILIPS_SU1278SH) /* activate f_xtal/f_comp signal output */ /* charge pump current C0/C1 = 00 */ buf[3] = 0x20; else buf[3] = freq > 1530000 ? 0xc0 : 0xc4; dprintk ("%s\n", __FUNCTION__); return pll_write (i2c, buf, ftype); } static int pll_set_tv_freq (struct dvb_i2c_bus *i2c, u32 freq, int ftype) { if (ftype == LG_TDQF_S001F) return sl1935_set_tv_freq(i2c, freq, ftype); else return tsa5059_set_tv_freq(i2c, freq, ftype); } #if 0 static int tsa5059_read_status (struct dvb_i2c_bus *i2c) { int ret; u8 rpt1 [] = { 0x05, 0xb5 }; u8 stat [] = { 0 }; struct i2c_msg msg [] = {{ addr: 0x68, flags: 0, buf: rpt1, len: 2 }, { addr: 0x60, flags: I2C_M_RD, buf: stat, len: 1 }}; dprintk ("%s\n", __FUNCTION__); ret = i2c->xfer (i2c, msg, 2); if (ret != 2) dprintk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret); return stat[0]; } #endif static int stv0299_init (struct dvb_i2c_bus *i2c, int ftype) { int i; dprintk("stv0299: init chip\n"); for (i=0; i 4) return FEC_AUTO; return fec_tab [index]; } static int stv0299_wait_diseqc_fifo (struct dvb_i2c_bus *i2c, int timeout) { unsigned long start = jiffies; dprintk ("%s\n", __FUNCTION__); while (stv0299_readreg(i2c, 0x0a) & 1) { if (jiffies - start > timeout) { dprintk ("%s: timeout!!\n", __FUNCTION__); return -ETIMEDOUT; } current->state = TASK_INTERRUPTIBLE; schedule_timeout (1); }; return 0; } static int stv0299_wait_diseqc_idle (struct dvb_i2c_bus *i2c, int timeout) { unsigned long start = jiffies; dprintk ("%s\n", __FUNCTION__); while ((stv0299_readreg(i2c, 0x0a) & 3) != 2 ) { if (jiffies - start > timeout) { dprintk ("%s: timeout!!\n", __FUNCTION__); return -ETIMEDOUT; } current->state = TASK_INTERRUPTIBLE; schedule_timeout (1); }; return 0; } static int stv0299_send_diseqc_msg (struct dvb_i2c_bus *i2c, struct dvb_diseqc_master_cmd *m) { u8 val; int i; dprintk ("%s\n", __FUNCTION__); if (stv0299_wait_diseqc_idle (i2c, 100) < 0) return -ETIMEDOUT; val = stv0299_readreg (i2c, 0x08); if (stv0299_writereg (i2c, 0x08, (val & ~0x7) | 0x6)) /* DiSEqC mode */ return -EREMOTEIO; for (i=0; imsg_len; i++) { if (stv0299_wait_diseqc_fifo (i2c, 100) < 0) return -ETIMEDOUT; if (stv0299_writereg (i2c, 0x09, m->msg[i])) return -EREMOTEIO; } if (stv0299_wait_diseqc_idle (i2c, 100) < 0) return -ETIMEDOUT; return 0; } static int stv0299_send_diseqc_burst (struct dvb_i2c_bus *i2c, fe_sec_mini_cmd_t burst) { u8 val; dprintk ("%s\n", __FUNCTION__); if (stv0299_wait_diseqc_idle (i2c, 100) < 0) return -ETIMEDOUT; val = stv0299_readreg (i2c, 0x08); if (stv0299_writereg (i2c, 0x08, (val & ~0x7) | 0x2)) /* burst mode */ return -EREMOTEIO; if (stv0299_writereg (i2c, 0x09, burst == SEC_MINI_A ? 0x00 : 0xff)) return -EREMOTEIO; if (stv0299_wait_diseqc_idle (i2c, 100) < 0) return -ETIMEDOUT; if (stv0299_writereg (i2c, 0x08, val)) return -EREMOTEIO; return 0; } static int stv0299_set_tone (struct dvb_i2c_bus *i2c, fe_sec_tone_mode_t tone) { u8 val; dprintk ("%s\n", __FUNCTION__); if (stv0299_wait_diseqc_idle (i2c, 100) < 0) return -ETIMEDOUT; val = stv0299_readreg (i2c, 0x08); switch (tone) { case SEC_TONE_ON: return stv0299_writereg (i2c, 0x08, val | 0x3); case SEC_TONE_OFF: return stv0299_writereg (i2c, 0x08, (val & ~0x3) | 0x02); default: return -EINVAL; }; } static int stv0299_set_voltage (struct dvb_i2c_bus *i2c, fe_sec_voltage_t voltage) { u8 val; dprintk ("%s\n", __FUNCTION__); val = stv0299_readreg (i2c, 0x0c); val &= 0x0f; val |= 0x40; /* LNB power on */ switch (voltage) { case SEC_VOLTAGE_13: return stv0299_writereg (i2c, 0x0c, val); case SEC_VOLTAGE_18: return stv0299_writereg (i2c, 0x0c, val | 0x10); default: return -EINVAL; }; } static int stv0299_set_symbolrate (struct dvb_i2c_bus *i2c, u32 srate) { u32 ratio; u32 tmp; u8 aclk = 0xb4, bclk = 0x51; if (srate > M_CLK) srate = M_CLK; if (srate < 500000) srate = 500000; if (srate < 30000000) { aclk = 0xb6; bclk = 0x53; } if (srate < 14000000) { aclk = 0xb7; bclk = 0x53; } if (srate < 7000000) { aclk = 0xb7; bclk = 0x4f; } if (srate < 3000000) { aclk = 0xb7; bclk = 0x4b; } if (srate < 1500000) { aclk = 0xb7; bclk = 0x47; } #define FIN (M_CLK >> 4) tmp = srate << 4; ratio = tmp / FIN; tmp = (tmp % FIN) << 8; ratio = (ratio << 8) + tmp / FIN; tmp = (tmp % FIN) << 8; ratio = (ratio << 8) + tmp / FIN; stv0299_writereg (i2c, 0x13, aclk); stv0299_writereg (i2c, 0x14, bclk); stv0299_writereg (i2c, 0x1f, (ratio >> 16) & 0xff); stv0299_writereg (i2c, 0x20, (ratio >> 8) & 0xff); stv0299_writereg (i2c, 0x21, (ratio ) & 0xf0); return 0; } static int stv0299_get_symbolrate (struct dvb_i2c_bus *i2c) { u32 Mclk = M_CLK / 4096L; u32 srate; s32 offset; u8 sfr[3]; s8 rtf; dprintk ("%s\n", __FUNCTION__); stv0299_readregs (i2c, 0x1f, sfr, 3); stv0299_readregs (i2c, 0x1a, &rtf, 1); srate = (sfr[0] << 8) | sfr[1]; srate *= Mclk; srate /= 16; srate += (sfr[2] >> 4) * Mclk / 256; offset = (s32) rtf * (srate / 4096L); offset /= 128; srate += offset; srate += 1000; srate /= 2000; srate *= 2000; return srate; } static int uni0299_ioctl (struct dvb_frontend *fe, unsigned int cmd, void *arg) { int tuner_type = (int)fe->data; struct dvb_i2c_bus *i2c = fe->i2c; dprintk ("%s\n", __FUNCTION__); switch (cmd) { case FE_GET_INFO: memcpy (arg, &uni0299_info, sizeof(struct dvb_frontend_info)); break; case FE_READ_STATUS: { fe_status_t *status = (fe_status_t *) arg; u8 signal = 0xff - stv0299_readreg (i2c, 0x18); u8 sync = stv0299_readreg (i2c, 0x1b); dprintk ("VSTATUS: 0x%02x\n", sync); *status = 0; if (signal > 10) *status |= FE_HAS_SIGNAL; if (sync & 0x80) *status |= FE_HAS_CARRIER; if (sync & 0x10) *status |= FE_HAS_VITERBI; if (sync & 0x08) *status |= FE_HAS_SYNC; if ((sync & 0x98) == 0x98) *status |= FE_HAS_LOCK; break; } case FE_READ_BER: *((u32*) arg) = (stv0299_readreg (i2c, 0x1d) << 8) | stv0299_readreg (i2c, 0x1e); break; case FE_READ_SIGNAL_STRENGTH: { s32 signal = 0xffff - ((stv0299_readreg (i2c, 0x18) << 8) | stv0299_readreg (i2c, 0x19)); dprintk ("AGC2I: 0x%02x%02x, signal=0x%04x\n", stv0299_readreg (i2c, 0x18), stv0299_readreg (i2c, 0x19), signal); signal = signal * 5 / 4; *((u16*) arg) = (signal > 0xffff) ? 0xffff : (signal < 0) ? 0 : signal; break; } case FE_READ_SNR: { s32 snr = 0xffff - ((stv0299_readreg (i2c, 0x24) << 8) | stv0299_readreg (i2c, 0x25)); snr = 3 * (snr - 0xa100); *((u16*) arg) = (snr > 0xffff) ? 0xffff : (snr < 0) ? 0 : snr; break; } case FE_READ_UNCORRECTED_BLOCKS: *((u32*) arg) = 0; /* the stv0299 can't measure BER and */ return -EOPNOTSUPP; /* errors at the same time.... */ case FE_SET_FRONTEND: { struct dvb_frontend_parameters *p = arg; pll_set_tv_freq (i2c, p->frequency, tuner_type); stv0299_set_FEC (i2c, p->u.qpsk.fec_inner); stv0299_set_symbolrate (i2c, p->u.qpsk.symbol_rate); stv0299_check_inversion (i2c); /* pll_set_tv_freq (i2c, p->frequency, tuner_type); */ stv0299_writereg (i2c, 0x22, 0x00); stv0299_writereg (i2c, 0x23, 0x00); stv0299_readreg (i2c, 0x23); stv0299_writereg (i2c, 0x12, 0xb9); /* printk ("%s: tsa5059 status: %x\n", __FUNCTION__, tsa5059_read_status(i2c)); */ break; } case FE_GET_FRONTEND: { struct dvb_frontend_parameters *p = arg; s32 derot_freq; derot_freq = (s32)(s16) ((stv0299_readreg (i2c, 0x22) << 8) | stv0299_readreg (i2c, 0x23)); derot_freq *= (M_CLK >> 16); derot_freq += 500; derot_freq /= 1000; p->frequency += derot_freq; p->inversion = (stv0299_readreg (i2c, 0x0c) & 1) ? INVERSION_OFF : INVERSION_ON; p->u.qpsk.fec_inner = stv0299_get_fec (i2c); p->u.qpsk.symbol_rate = stv0299_get_symbolrate (i2c); break; } case FE_SLEEP: stv0299_writereg (i2c, 0x0c, 0x00); /* LNB power off! */ stv0299_writereg (i2c, 0x02, 0x80); break; case FE_INIT: return stv0299_init (i2c, tuner_type); case FE_RESET: stv0299_writereg (i2c, 0x22, 0x00); stv0299_writereg (i2c, 0x23, 0x00); stv0299_readreg (i2c, 0x23); stv0299_writereg (i2c, 0x12, 0xb9); break; case FE_DISEQC_SEND_MASTER_CMD: return stv0299_send_diseqc_msg (i2c, arg); case FE_DISEQC_SEND_BURST: return stv0299_send_diseqc_burst (i2c, (fe_sec_mini_cmd_t) arg); case FE_SET_TONE: return stv0299_set_tone (i2c, (fe_sec_tone_mode_t) arg); case FE_SET_VOLTAGE: return stv0299_set_voltage (i2c, (fe_sec_voltage_t) arg); default: return -EOPNOTSUPP; }; return 0; } static int probe_tuner (struct dvb_i2c_bus *i2c) { int type; /* read the status register of TSA5059 */ u8 rpt[] = { 0x05, 0xb5 }; u8 stat [] = { 0 }; struct i2c_msg msg1 [] = {{ addr: 0x68, flags: 0, buf: rpt, len: 2 }, { addr: 0x60, flags: I2C_M_RD, buf: stat, len: 1 }}; struct i2c_msg msg2 [] = {{ addr: 0x68, flags: 0, buf: rpt, len: 2 }, { addr: 0x61, flags: I2C_M_RD, buf: stat, len: 1 }}; if (i2c->xfer(i2c, msg1, 2) == 2) { type = PHILIPS_SU1278SH; printk ("%s: setup for tuner SU1278/SH\n", __FILE__); } else if (i2c->xfer(i2c, msg2, 2) == 2) { if (0) { // if ((stat[0] & 0x3f) == 0) { type = LG_TDQF_S001F; printk ("%s: setup for tuner TDQF-S001F\n", __FILE__); } else { type = ALPS_BSRU6; printk ("%s: setup for tuner BSRU6, TDQB-S00x\n", __FILE__); } } else { type = UNKNOWN_FRONTEND; printk ("%s: unknown PLL synthesizer, " "please report to !!\n", __FILE__); } return type; } static int uni0299_attach (struct dvb_i2c_bus *i2c) { int tuner_type; u8 id = stv0299_readreg (i2c, 0x00); dprintk ("%s\n", __FUNCTION__); /* register 0x00 contains 0xa1 for STV0299 and STV0299B */ /* register 0x00 might contain 0x80 when returning from standby */ if (id != 0xa1 && id != 0x80) return -ENODEV; if ((tuner_type = probe_tuner(i2c)) < 0) return -ENODEV; dvb_register_frontend (uni0299_ioctl, i2c, (void*) tuner_type, &uni0299_info); return 0; } static void uni0299_detach (struct dvb_i2c_bus *i2c) { dprintk ("%s\n", __FUNCTION__); dvb_unregister_frontend (uni0299_ioctl, i2c); } static int __init init_uni0299 (void) { dprintk ("%s\n", __FUNCTION__); return dvb_register_i2c_device (THIS_MODULE, uni0299_attach, uni0299_detach); } static void __exit exit_uni0299 (void) { dprintk ("%s\n", __FUNCTION__); dvb_unregister_i2c_device (uni0299_attach); } module_init (init_uni0299); module_exit (exit_uni0299); MODULE_PARM(debug,"i"); MODULE_PARM_DESC(debug, "enable verbose debug messages"); MODULE_DESCRIPTION("Universal STV0299/TSA5059/SL1935 DVB Frontend driver"); MODULE_AUTHOR("Ralph Metzler, Holger Waechtler, Peter Schildmann, Felix Domke, Andreas Oberritter"); MODULE_LICENSE("GPL");