| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Manu Abraham | 8453 | 96.86% | 21 | 38.18% |
| Reinhard Nißl | 105 | 1.20% | 5 | 9.09% |
| Mauro Carvalho Chehab | 95 | 1.09% | 13 | 23.64% |
| Max Kellermann | 20 | 0.23% | 2 | 3.64% |
| Asaf Vertz | 18 | 0.21% | 1 | 1.82% |
| Klaus Schmidinger | 17 | 0.19% | 3 | 5.45% |
| Arnd Bergmann | 6 | 0.07% | 1 | 1.82% |
| Andreas Regel | 3 | 0.03% | 2 | 3.64% |
| Thomas Gleixner | 2 | 0.02% | 1 | 1.82% |
| Lutz Sammer | 2 | 0.02% | 1 | 1.82% |
| Linus Torvalds (pre-git) | 2 | 0.02% | 1 | 1.82% |
| Sigmund Augdal Helberg | 1 | 0.01% | 1 | 1.82% |
| Marko Schluessler | 1 | 0.01% | 1 | 1.82% |
| Linus Torvalds | 1 | 0.01% | 1 | 1.82% |
| Hans Petter Selasky | 1 | 0.01% | 1 | 1.82% |
| Total | 8727 | 55 |
// SPDX-License-Identifier: GPL-2.0-or-later /* STB0899 Multistandard Frontend driver Copyright (C) Manu Abraham (abraham.manu@gmail.com) Copyright (C) ST Microelectronics */ #include <linux/init.h> #include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/dvb/frontend.h> #include <media/dvb_frontend.h> #include "stb0899_drv.h" #include "stb0899_priv.h" #include "stb0899_reg.h" /* Max transfer size done by I2C transfer functions */ #define MAX_XFER_SIZE 64 static unsigned int verbose = 0;//1; module_param(verbose, int, 0644); /* C/N in dB/10, NIRM/NIRL */ static const struct stb0899_tab stb0899_cn_tab[] = { { 200, 2600 }, { 190, 2700 }, { 180, 2860 }, { 170, 3020 }, { 160, 3210 }, { 150, 3440 }, { 140, 3710 }, { 130, 4010 }, { 120, 4360 }, { 110, 4740 }, { 100, 5190 }, { 90, 5670 }, { 80, 6200 }, { 70, 6770 }, { 60, 7360 }, { 50, 7970 }, { 40, 8250 }, { 30, 9000 }, { 20, 9450 }, { 15, 9600 }, }; /* DVB-S AGCIQ_VALUE vs. signal level in dBm/10. * As measured, connected to a modulator. * -8.0 to -50.0 dBm directly connected, * -52.0 to -74.8 with extra attenuation. * Cut-off to AGCIQ_VALUE = 0x80 below -74.8dBm. * Crude linear extrapolation below -84.8dBm and above -8.0dBm. */ static const struct stb0899_tab stb0899_dvbsrf_tab[] = { { -750, -128 }, { -748, -94 }, { -745, -92 }, { -735, -90 }, { -720, -87 }, { -670, -77 }, { -640, -70 }, { -610, -62 }, { -600, -60 }, { -590, -56 }, { -560, -41 }, { -540, -25 }, { -530, -17 }, { -520, -11 }, { -500, 1 }, { -490, 6 }, { -480, 10 }, { -440, 22 }, { -420, 27 }, { -400, 31 }, { -380, 34 }, { -340, 40 }, { -320, 43 }, { -280, 48 }, { -250, 52 }, { -230, 55 }, { -180, 61 }, { -140, 66 }, { -90, 73 }, { -80, 74 }, { 500, 127 } }; /* DVB-S2 IF_AGC_GAIN vs. signal level in dBm/10. * As measured, connected to a modulator. * -8.0 to -50.1 dBm directly connected, * -53.0 to -76.6 with extra attenuation. * Cut-off to IF_AGC_GAIN = 0x3fff below -76.6dBm. * Crude linear extrapolation below -76.6dBm and above -8.0dBm. */ static const struct stb0899_tab stb0899_dvbs2rf_tab[] = { { 700, 0 }, { -80, 3217 }, { -150, 3893 }, { -190, 4217 }, { -240, 4621 }, { -280, 4945 }, { -320, 5273 }, { -350, 5545 }, { -370, 5741 }, { -410, 6147 }, { -450, 6671 }, { -490, 7413 }, { -501, 7665 }, { -530, 8767 }, { -560, 10219 }, { -580, 10939 }, { -590, 11518 }, { -600, 11723 }, { -650, 12659 }, { -690, 13219 }, { -730, 13645 }, { -750, 13909 }, { -766, 14153 }, { -950, 16383 } }; /* DVB-S2 Es/N0 quant in dB/100 vs read value * 100*/ static struct stb0899_tab stb0899_quant_tab[] = { { 0, 0 }, { 0, 100 }, { 600, 200 }, { 950, 299 }, { 1200, 398 }, { 1400, 501 }, { 1560, 603 }, { 1690, 700 }, { 1810, 804 }, { 1910, 902 }, { 2000, 1000 }, { 2080, 1096 }, { 2160, 1202 }, { 2230, 1303 }, { 2350, 1496 }, { 2410, 1603 }, { 2460, 1698 }, { 2510, 1799 }, { 2600, 1995 }, { 2650, 2113 }, { 2690, 2213 }, { 2720, 2291 }, { 2760, 2399 }, { 2800, 2512 }, { 2860, 2692 }, { 2930, 2917 }, { 2960, 3020 }, { 3010, 3199 }, { 3040, 3311 }, { 3060, 3388 }, { 3120, 3631 }, { 3190, 3936 }, { 3400, 5012 }, { 3610, 6383 }, { 3800, 7943 }, { 4210, 12735 }, { 4500, 17783 }, { 4690, 22131 }, { 4810, 25410 } }; /* DVB-S2 Es/N0 estimate in dB/100 vs read value */ static struct stb0899_tab stb0899_est_tab[] = { { 0, 0 }, { 0, 1 }, { 301, 2 }, { 1204, 16 }, { 1806, 64 }, { 2408, 256 }, { 2709, 512 }, { 3010, 1023 }, { 3311, 2046 }, { 3612, 4093 }, { 3823, 6653 }, { 3913, 8185 }, { 4010, 10233 }, { 4107, 12794 }, { 4214, 16368 }, { 4266, 18450 }, { 4311, 20464 }, { 4353, 22542 }, { 4391, 24604 }, { 4425, 26607 }, { 4457, 28642 }, { 4487, 30690 }, { 4515, 32734 }, { 4612, 40926 }, { 4692, 49204 }, { 4816, 65464 }, { 4913, 81846 }, { 4993, 98401 }, { 5060, 114815 }, { 5118, 131220 }, { 5200, 158489 }, { 5300, 199526 }, { 5400, 251189 }, { 5500, 316228 }, { 5600, 398107 }, { 5720, 524807 }, { 5721, 526017 }, }; static int _stb0899_read_reg(struct stb0899_state *state, unsigned int reg) { int ret; u8 b0[] = { reg >> 8, reg & 0xff }; u8 buf; 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 = &buf, .len = 1 } }; ret = i2c_transfer(state->i2c, msg, 2); if (ret != 2) { if (ret != -ERESTARTSYS) dprintk(state->verbose, FE_ERROR, 1, "Read error, Reg=[0x%02x], Status=%d", reg, ret); return ret < 0 ? ret : -EREMOTEIO; } if (unlikely(*state->verbose >= FE_DEBUGREG)) dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%02x], data=%02x", reg, buf); return (unsigned int)buf; } int stb0899_read_reg(struct stb0899_state *state, unsigned int reg) { int result; result = _stb0899_read_reg(state, reg); /* * Bug ID 9: * access to 0xf2xx/0xf6xx * must be followed by read from 0xf2ff/0xf6ff. */ if ((reg != 0xf2ff) && (reg != 0xf6ff) && (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600))) _stb0899_read_reg(state, (reg | 0x00ff)); return result; } u32 _stb0899_read_s2reg(struct stb0899_state *state, u32 stb0899_i2cdev, u32 stb0899_base_addr, u16 stb0899_reg_offset) { int status; u32 data; u8 buf[7] = { 0 }; u16 tmpaddr; u8 buf_0[] = { GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */ GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */ GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */ GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */ GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */ GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */ }; u8 buf_1[] = { 0x00, /* 0xf3 Reg Offset */ 0x00, /* 0x44 Reg Offset */ }; struct i2c_msg msg_0 = { .addr = state->config->demod_address, .flags = 0, .buf = buf_0, .len = 6 }; struct i2c_msg msg_1 = { .addr = state->config->demod_address, .flags = 0, .buf = buf_1, .len = 2 }; struct i2c_msg msg_r = { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = buf, .len = 4 }; tmpaddr = stb0899_reg_offset & 0xff00; if (!(stb0899_reg_offset & 0x8)) tmpaddr = stb0899_reg_offset | 0x20; buf_1[0] = GETBYTE(tmpaddr, BYTE1); buf_1[1] = GETBYTE(tmpaddr, BYTE0); status = i2c_transfer(state->i2c, &msg_0, 1); if (status < 1) { if (status != -ERESTARTSYS) printk(KERN_ERR "%s ERR(1), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n", __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status); goto err; } /* Dummy */ status = i2c_transfer(state->i2c, &msg_1, 1); if (status < 1) goto err; status = i2c_transfer(state->i2c, &msg_r, 1); if (status < 1) goto err; buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1); buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0); /* Actual */ status = i2c_transfer(state->i2c, &msg_1, 1); if (status < 1) { if (status != -ERESTARTSYS) printk(KERN_ERR "%s ERR(2), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n", __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status); goto err; } status = i2c_transfer(state->i2c, &msg_r, 1); if (status < 1) { if (status != -ERESTARTSYS) printk(KERN_ERR "%s ERR(3), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n", __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status); return status < 0 ? status : -EREMOTEIO; } data = MAKEWORD32(buf[3], buf[2], buf[1], buf[0]); if (unlikely(*state->verbose >= FE_DEBUGREG)) printk(KERN_DEBUG "%s Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n", __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, data); return data; err: return status < 0 ? status : -EREMOTEIO; } int stb0899_write_s2reg(struct stb0899_state *state, u32 stb0899_i2cdev, u32 stb0899_base_addr, u16 stb0899_reg_offset, u32 stb0899_data) { int status; /* Base Address Setup */ u8 buf_0[] = { GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */ GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */ GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */ GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */ GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */ GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */ }; u8 buf_1[] = { 0x00, /* 0xf3 Reg Offset */ 0x00, /* 0x44 Reg Offset */ 0x00, /* data */ 0x00, /* data */ 0x00, /* data */ 0x00, /* data */ }; struct i2c_msg msg_0 = { .addr = state->config->demod_address, .flags = 0, .buf = buf_0, .len = 6 }; struct i2c_msg msg_1 = { .addr = state->config->demod_address, .flags = 0, .buf = buf_1, .len = 6 }; buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1); buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0); buf_1[2] = GETBYTE(stb0899_data, BYTE0); buf_1[3] = GETBYTE(stb0899_data, BYTE1); buf_1[4] = GETBYTE(stb0899_data, BYTE2); buf_1[5] = GETBYTE(stb0899_data, BYTE3); if (unlikely(*state->verbose >= FE_DEBUGREG)) printk(KERN_DEBUG "%s Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n", __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data); status = i2c_transfer(state->i2c, &msg_0, 1); if (unlikely(status < 1)) { if (status != -ERESTARTSYS) printk(KERN_ERR "%s ERR (1), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n", __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status); goto err; } status = i2c_transfer(state->i2c, &msg_1, 1); if (unlikely(status < 1)) { if (status != -ERESTARTSYS) printk(KERN_ERR "%s ERR (2), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n", __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status); return status < 0 ? status : -EREMOTEIO; } return 0; err: return status < 0 ? status : -EREMOTEIO; } int stb0899_read_regs(struct stb0899_state *state, unsigned int reg, u8 *buf, u32 count) { int status; u8 b0[] = { reg >> 8, reg & 0xff }; 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 = buf, .len = count } }; status = i2c_transfer(state->i2c, msg, 2); if (status != 2) { if (status != -ERESTARTSYS) printk(KERN_ERR "%s Read error, Reg=[0x%04x], Count=%u, Status=%d\n", __func__, reg, count, status); goto err; } /* * Bug ID 9: * access to 0xf2xx/0xf6xx * must be followed by read from 0xf2ff/0xf6ff. */ if ((reg != 0xf2ff) && (reg != 0xf6ff) && (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600))) _stb0899_read_reg(state, (reg | 0x00ff)); dprintk(state->verbose, FE_DEBUGREG, 1, "%s [0x%04x]: %*ph", __func__, reg, count, buf); return 0; err: return status < 0 ? status : -EREMOTEIO; } int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, u32 count) { int ret; u8 buf[MAX_XFER_SIZE]; struct i2c_msg i2c_msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 + count }; if (2 + count > sizeof(buf)) { printk(KERN_WARNING "%s: i2c wr reg=%04x: len=%d is too big!\n", KBUILD_MODNAME, reg, count); return -EINVAL; } buf[0] = reg >> 8; buf[1] = reg & 0xff; memcpy(&buf[2], data, count); dprintk(state->verbose, FE_DEBUGREG, 1, "%s [0x%04x]: %*ph", __func__, reg, count, data); ret = i2c_transfer(state->i2c, &i2c_msg, 1); /* * Bug ID 9: * access to 0xf2xx/0xf6xx * must be followed by read from 0xf2ff/0xf6ff. */ if ((((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600))) stb0899_read_reg(state, (reg | 0x00ff)); if (ret != 1) { if (ret != -ERESTARTSYS) dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d", reg, data[0], count, ret); return ret < 0 ? ret : -EREMOTEIO; } return 0; } int stb0899_write_reg(struct stb0899_state *state, unsigned int reg, u8 data) { u8 tmp = data; return stb0899_write_regs(state, reg, &tmp, 1); } /* * stb0899_get_mclk * Get STB0899 master clock frequency * ExtClk: external clock frequency (Hz) */ static u32 stb0899_get_mclk(struct stb0899_state *state) { u32 mclk = 0, div = 0; div = stb0899_read_reg(state, STB0899_NCOARSE); mclk = (div + 1) * state->config->xtal_freq / 6; dprintk(state->verbose, FE_DEBUG, 1, "div=%d, mclk=%d", div, mclk); return mclk; } /* * stb0899_set_mclk * Set STB0899 master Clock frequency * Mclk: demodulator master clock * ExtClk: external clock frequency (Hz) */ static void stb0899_set_mclk(struct stb0899_state *state, u32 Mclk) { struct stb0899_internal *internal = &state->internal; u8 mdiv = 0; dprintk(state->verbose, FE_DEBUG, 1, "state->config=%p", state->config); mdiv = ((6 * Mclk) / state->config->xtal_freq) - 1; dprintk(state->verbose, FE_DEBUG, 1, "mdiv=%d", mdiv); stb0899_write_reg(state, STB0899_NCOARSE, mdiv); internal->master_clk = stb0899_get_mclk(state); dprintk(state->verbose, FE_DEBUG, 1, "MasterCLOCK=%d", internal->master_clk); } static int stb0899_postproc(struct stb0899_state *state, u8 ctl, int enable) { struct stb0899_config *config = state->config; const struct stb0899_postproc *postproc = config->postproc; /* post process event */ if (postproc) { if (enable) { if (postproc[ctl].level == STB0899_GPIOPULLUP) stb0899_write_reg(state, postproc[ctl].gpio, 0x02); else stb0899_write_reg(state, postproc[ctl].gpio, 0x82); } else { if (postproc[ctl].level == STB0899_GPIOPULLUP) stb0899_write_reg(state, postproc[ctl].gpio, 0x82); else stb0899_write_reg(state, postproc[ctl].gpio, 0x02); } } return 0; } static void stb0899_detach(struct dvb_frontend *fe) { struct stb0899_state *state = fe->demodulator_priv; /* post process event */ stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0); } static void stb0899_release(struct dvb_frontend *fe) { struct stb0899_state *state = fe->demodulator_priv; dprintk(state->verbose, FE_DEBUG, 1, "Release Frontend"); kfree(state); } /* * stb0899_get_alpha * return: rolloff */ static int stb0899_get_alpha(struct stb0899_state *state) { u8 mode_coeff; mode_coeff = stb0899_read_reg(state, STB0899_DEMOD); if (STB0899_GETFIELD(MODECOEFF, mode_coeff) == 1) return 20; else return 35; } /* * stb0899_init_calc */ static void stb0899_init_calc(struct stb0899_state *state) { struct stb0899_internal *internal = &state->internal; int master_clk; u8 agc[2]; u32 reg; /* Read registers (in burst mode) */ stb0899_read_regs(state, STB0899_AGC1REF, agc, 2); /* AGC1R and AGC2O */ /* Initial calculations */ master_clk = stb0899_get_mclk(state); internal->t_agc1 = 0; internal->t_agc2 = 0; internal->master_clk = master_clk; internal->mclk = master_clk / 65536L; internal->rolloff = stb0899_get_alpha(state); /* DVBS2 Initial calculations */ /* Set AGC value to the middle */ internal->agc_gain = 8154; reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_CNTRL); STB0899_SETFIELD_VAL(IF_GAIN_INIT, reg, internal->agc_gain); stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_IF_AGC_CNTRL, STB0899_OFF0_IF_AGC_CNTRL, reg); reg = STB0899_READ_S2REG(STB0899_S2DEMOD, RRC_ALPHA); internal->rrc_alpha = STB0899_GETFIELD(RRC_ALPHA, reg); internal->center_freq = 0; internal->av_frame_coarse = 10; internal->av_frame_fine = 20; internal->step_size = 2; /* if ((pParams->SpectralInv == FE_IQ_NORMAL) || (pParams->SpectralInv == FE_IQ_AUTO)) pParams->IQLocked = 0; else pParams->IQLocked = 1; */ } static int stb0899_wait_diseqc_fifo_empty(struct stb0899_state *state, int timeout) { u8 reg = 0; unsigned long start = jiffies; while (1) { reg = stb0899_read_reg(state, STB0899_DISSTATUS); if (!STB0899_GETFIELD(FIFOFULL, reg)) break; if (time_after(jiffies, start + timeout)) { dprintk(state->verbose, FE_ERROR, 1, "timed out !!"); return -ETIMEDOUT; } } return 0; } static int stb0899_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd) { struct stb0899_state *state = fe->demodulator_priv; u8 reg, i; if (cmd->msg_len > sizeof(cmd->msg)) return -EINVAL; /* enable FIFO precharge */ reg = stb0899_read_reg(state, STB0899_DISCNTRL1); STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 1); stb0899_write_reg(state, STB0899_DISCNTRL1, reg); for (i = 0; i < cmd->msg_len; i++) { /* wait for FIFO empty */ if (stb0899_wait_diseqc_fifo_empty(state, 100) < 0) return -ETIMEDOUT; stb0899_write_reg(state, STB0899_DISFIFO, cmd->msg[i]); } reg = stb0899_read_reg(state, STB0899_DISCNTRL1); STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0); stb0899_write_reg(state, STB0899_DISCNTRL1, reg); msleep(100); return 0; } static int stb0899_wait_diseqc_rxidle(struct stb0899_state *state, int timeout) { u8 reg = 0; unsigned long start = jiffies; while (!STB0899_GETFIELD(RXEND, reg)) { reg = stb0899_read_reg(state, STB0899_DISRX_ST0); if (time_after(jiffies, start + timeout)) { dprintk(state->verbose, FE_ERROR, 1, "timed out!!"); return -ETIMEDOUT; } msleep(10); } return 0; } static int stb0899_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply) { struct stb0899_state *state = fe->demodulator_priv; u8 reg, length = 0, i; int result; if (stb0899_wait_diseqc_rxidle(state, 100) < 0) return -ETIMEDOUT; reg = stb0899_read_reg(state, STB0899_DISRX_ST0); if (STB0899_GETFIELD(RXEND, reg)) { reg = stb0899_read_reg(state, STB0899_DISRX_ST1); length = STB0899_GETFIELD(FIFOBYTENBR, reg); if (length > sizeof (reply->msg)) { result = -EOVERFLOW; goto exit; } reply->msg_len = length; /* extract data */ for (i = 0; i < length; i++) reply->msg[i] = stb0899_read_reg(state, STB0899_DISFIFO); } return 0; exit: return result; } static int stb0899_wait_diseqc_txidle(struct stb0899_state *state, int timeout) { u8 reg = 0; unsigned long start = jiffies; while (!STB0899_GETFIELD(TXIDLE, reg)) { reg = stb0899_read_reg(state, STB0899_DISSTATUS); if (time_after(jiffies, start + timeout)) { dprintk(state->verbose, FE_ERROR, 1, "timed out!!"); return -ETIMEDOUT; } msleep(10); } return 0; } static int stb0899_send_diseqc_burst(struct dvb_frontend *fe, enum fe_sec_mini_cmd burst) { struct stb0899_state *state = fe->demodulator_priv; u8 reg, old_state; /* wait for diseqc idle */ if (stb0899_wait_diseqc_txidle(state, 100) < 0) return -ETIMEDOUT; reg = stb0899_read_reg(state, STB0899_DISCNTRL1); old_state = reg; /* set to burst mode */ STB0899_SETFIELD_VAL(DISEQCMODE, reg, 0x03); STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x01); stb0899_write_reg(state, STB0899_DISCNTRL1, reg); switch (burst) { case SEC_MINI_A: /* unmodulated */ stb0899_write_reg(state, STB0899_DISFIFO, 0x00); break; case SEC_MINI_B: /* modulated */ stb0899_write_reg(state, STB0899_DISFIFO, 0xff); break; } reg = stb0899_read_reg(state, STB0899_DISCNTRL1); STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x00); stb0899_write_reg(state, STB0899_DISCNTRL1, reg); /* wait for diseqc idle */ if (stb0899_wait_diseqc_txidle(state, 100) < 0) return -ETIMEDOUT; /* restore state */ stb0899_write_reg(state, STB0899_DISCNTRL1, old_state); return 0; } static int stb0899_diseqc_init(struct stb0899_state *state) { /* struct dvb_diseqc_slave_reply rx_data; */ u8 f22_tx, reg; u32 mclk, tx_freq = 22000;/* count = 0, i; */ reg = stb0899_read_reg(state, STB0899_DISCNTRL2); STB0899_SETFIELD_VAL(ONECHIP_TRX, reg, 0); stb0899_write_reg(state, STB0899_DISCNTRL2, reg); /* disable Tx spy */ reg = stb0899_read_reg(state, STB0899_DISCNTRL1); STB0899_SETFIELD_VAL(DISEQCRESET, reg, 1); stb0899_write_reg(state, STB0899_DISCNTRL1, reg); reg = stb0899_read_reg(state, STB0899_DISCNTRL1); STB0899_SETFIELD_VAL(DISEQCRESET, reg, 0); stb0899_write_reg(state, STB0899_DISCNTRL1, reg); mclk = stb0899_get_mclk(state); f22_tx = mclk / (tx_freq * 32); stb0899_write_reg(state, STB0899_DISF22, f22_tx); /* DiSEqC Tx freq */ state->rx_freq = 20000; return 0; } static int stb0899_sleep(struct dvb_frontend *fe) { struct stb0899_state *state = fe->demodulator_priv; /* u8 reg; */ dprintk(state->verbose, FE_DEBUG, 1, "Going to Sleep .. (Really tired .. :-))"); /* post process event */ stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0); return 0; } static int stb0899_wakeup(struct dvb_frontend *fe) { int rc; struct stb0899_state *state = fe->demodulator_priv; if ((rc = stb0899_write_reg(state, STB0899_SYNTCTRL, STB0899_SELOSCI))) return rc; /* Activate all clocks; DVB-S2 registers are inaccessible otherwise. */ if ((rc = stb0899_write_reg(state, STB0899_STOPCLK1, 0x00))) return rc; if ((rc = stb0899_write_reg(state, STB0899_STOPCLK2, 0x00))) return rc; /* post process event */ stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 1); return 0; } static int stb0899_init(struct dvb_frontend *fe) { int i; struct stb0899_state *state = fe->demodulator_priv; struct stb0899_config *config = state->config; dprintk(state->verbose, FE_DEBUG, 1, "Initializing STB0899 ... "); /* init device */ dprintk(state->verbose, FE_DEBUG, 1, "init device"); for (i = 0; config->init_dev[i].address != 0xffff; i++) stb0899_write_reg(state, config->init_dev[i].address, config->init_dev[i].data); dprintk(state->verbose, FE_DEBUG, 1, "init S2 demod"); /* init S2 demod */ for (i = 0; config->init_s2_demod[i].offset != 0xffff; i++) stb0899_write_s2reg(state, STB0899_S2DEMOD, config->init_s2_demod[i].base_address, config->init_s2_demod[i].offset, config->init_s2_demod[i].data); dprintk(state->verbose, FE_DEBUG, 1, "init S1 demod"); /* init S1 demod */ for (i = 0; config->init_s1_demod[i].address != 0xffff; i++) stb0899_write_reg(state, config->init_s1_demod[i].address, config->init_s1_demod[i].data); dprintk(state->verbose, FE_DEBUG, 1, "init S2 FEC"); /* init S2 fec */ for (i = 0; config->init_s2_fec[i].offset != 0xffff; i++) stb0899_write_s2reg(state, STB0899_S2FEC, config->init_s2_fec[i].base_address, config->init_s2_fec[i].offset, config->init_s2_fec[i].data); dprintk(state->verbose, FE_DEBUG, 1, "init TST"); /* init test */ for (i = 0; config->init_tst[i].address != 0xffff; i++) stb0899_write_reg(state, config->init_tst[i].address, config->init_tst[i].data); stb0899_init_calc(state); stb0899_diseqc_init(state); return 0; } static int stb0899_table_lookup(const struct stb0899_tab *tab, int max, int val) { int res = 0; int min = 0, med; if (val < tab[min].read) res = tab[min].real; else if (val >= tab[max].read) res = tab[max].real; else { while ((max - min) > 1) { med = (max + min) / 2; if (val >= tab[min].read && val < tab[med].read) max = med; else min = med; } res = ((val - tab[min].read) * (tab[max].real - tab[min].real) / (tab[max].read - tab[min].read)) + tab[min].real; } return res; } static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength) { struct stb0899_state *state = fe->demodulator_priv; struct stb0899_internal *internal = &state->internal; int val; u32 reg; *strength = 0; switch (state->delsys) { case SYS_DVBS: case SYS_DSS: if (internal->lock) { reg = stb0899_read_reg(state, STB0899_VSTATUS); if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) { reg = stb0899_read_reg(state, STB0899_AGCIQIN); val = (s32)(s8)STB0899_GETFIELD(AGCIQVALUE, reg); *strength = stb0899_table_lookup(stb0899_dvbsrf_tab, ARRAY_SIZE(stb0899_dvbsrf_tab) - 1, val); *strength += 750; dprintk(state->verbose, FE_DEBUG, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm", val & 0xff, *strength); } } break; case SYS_DVBS2: if (internal->lock) { reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_GAIN); val = STB0899_GETFIELD(IF_AGC_GAIN, reg); *strength = stb0899_table_lookup(stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val); *strength += 950; dprintk(state->verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm", val & 0x3fff, *strength); } break; default: dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system"); return -EINVAL; } return 0; } static int stb0899_read_snr(struct dvb_frontend *fe, u16 *snr) { struct stb0899_state *state = fe->demodulator_priv; struct stb0899_internal *internal = &state->internal; unsigned int val, quant, quantn = -1, est, estn = -1; u8 buf[2]; u32 reg; *snr = 0; reg = stb0899_read_reg(state, STB0899_VSTATUS); switch (state->delsys) { case SYS_DVBS: case SYS_DSS: if (internal->lock) { if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) { stb0899_read_regs(state, STB0899_NIRM, buf, 2); val = MAKEWORD16(buf[0], buf[1]); *snr = stb0899_table_lookup(stb0899_cn_tab, ARRAY_SIZE(stb0899_cn_tab) - 1, val); dprintk(state->verbose, FE_DEBUG, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n", buf[0], buf[1], val, *snr); } } break; case SYS_DVBS2: if (internal->lock) { reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_CNTRL1); quant = STB0899_GETFIELD(UWP_ESN0_QUANT, reg); reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_STAT2); est = STB0899_GETFIELD(ESN0_EST, reg); if (est == 1) val = 301; /* C/N = 30.1 dB */ else if (est == 2) val = 270; /* C/N = 27.0 dB */ else { /* quantn = 100 * log(quant^2) */ quantn = stb0899_table_lookup(stb0899_quant_tab, ARRAY_SIZE(stb0899_quant_tab) - 1, quant * 100); /* estn = 100 * log(est) */ estn = stb0899_table_lookup(stb0899_est_tab, ARRAY_SIZE(stb0899_est_tab) - 1, est); /* snr(dBm/10) = -10*(log(est)-log(quant^2)) => snr(dBm/10) = (100*log(quant^2)-100*log(est))/10 */ val = (quantn - estn) / 10; } *snr = val; dprintk(state->verbose, FE_DEBUG, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm", quant, quantn, est, estn, val); } break; default: dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system"); return -EINVAL; } return 0; } static int stb0899_read_status(struct dvb_frontend *fe, enum fe_status *status) { struct stb0899_state *state = fe->demodulator_priv; struct stb0899_internal *internal = &state->internal; u8 reg; *status = 0; switch (state->delsys) { case SYS_DVBS: case SYS_DSS: dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S/DSS"); if (internal->lock) { reg = stb0899_read_reg(state, STB0899_VSTATUS); if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) { dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_CARRIER | FE_HAS_LOCK"); *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK; reg = stb0899_read_reg(state, STB0899_PLPARM); if (STB0899_GETFIELD(VITCURPUN, reg)) { dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_VITERBI | FE_HAS_SYNC"); *status |= FE_HAS_VITERBI | FE_HAS_SYNC; /* post process event */ stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1); } } } break; case SYS_DVBS2: dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S2"); if (internal->lock) { reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STAT2); if (STB0899_GETFIELD(UWP_LOCK, reg) && STB0899_GETFIELD(CSM_LOCK, reg)) { *status |= FE_HAS_CARRIER; dprintk(state->verbose, FE_DEBUG, 1, "UWP & CSM Lock ! ---> DVB-S2 FE_HAS_CARRIER"); reg = stb0899_read_reg(state, STB0899_CFGPDELSTATUS1); if (STB0899_GETFIELD(CFGPDELSTATUS_LOCK, reg)) { *status |= FE_HAS_LOCK; dprintk(state->verbose, FE_DEBUG, 1, "Packet Delineator Locked ! -----> DVB-S2 FE_HAS_LOCK"); } if (STB0899_GETFIELD(CONTINUOUS_STREAM, reg)) { *status |= FE_HAS_VITERBI; dprintk(state->verbose, FE_DEBUG, 1, "Packet Delineator found VITERBI ! -----> DVB-S2 FE_HAS_VITERBI"); } if (STB0899_GETFIELD(ACCEPTED_STREAM, reg)) { *status |= FE_HAS_SYNC; dprintk(state->verbose, FE_DEBUG, 1, "Packet Delineator found SYNC ! -----> DVB-S2 FE_HAS_SYNC"); /* post process event */ stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1); } } } break; default: dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system"); return -EINVAL; } return 0; } /* * stb0899_get_error * viterbi error for DVB-S/DSS * packet error for DVB-S2 * Bit Error Rate or Packet Error Rate * 10 ^ 7 */ static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber) { struct stb0899_state *state = fe->demodulator_priv; struct stb0899_internal *internal = &state->internal; u8 lsb, msb; *ber = 0; switch (state->delsys) { case SYS_DVBS: case SYS_DSS: if (internal->lock) { lsb = stb0899_read_reg(state, STB0899_ECNT1L); msb = stb0899_read_reg(state, STB0899_ECNT1M); *ber = MAKEWORD16(msb, lsb); /* Viterbi Check */ if (STB0899_GETFIELD(VSTATUS_PRFVIT, internal->v_status)) { /* Error Rate */ *ber *= 9766; /* ber = ber * 10 ^ 7 */ *ber /= (-1 + (1 << (2 * STB0899_GETFIELD(NOE, internal->err_ctrl)))); *ber /= 8; } } break; case SYS_DVBS2: if (internal->lock) { lsb = stb0899_read_reg(state, STB0899_ECNT1L); msb = stb0899_read_reg(state, STB0899_ECNT1M); *ber = MAKEWORD16(msb, lsb); /* ber = ber * 10 ^ 7 */ *ber *= 10000000; *ber /= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE, internal->err_ctrl)))); } break; default: dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system"); return -EINVAL; } return 0; } static int stb0899_set_voltage(struct dvb_frontend *fe, enum fe_sec_voltage voltage) { struct stb0899_state *state = fe->demodulator_priv; switch (voltage) { case SEC_VOLTAGE_13: stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82); stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02); stb0899_write_reg(state, STB0899_GPIO02CFG, 0x00); break; case SEC_VOLTAGE_18: stb0899_write_reg(state, STB0899_GPIO00CFG, 0x02); stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02); stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82); break; case SEC_VOLTAGE_OFF: stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82); stb0899_write_reg(state, STB0899_GPIO01CFG, 0x82); stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82); break; default: return -EINVAL; } return 0; } static int stb0899_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone) { struct stb0899_state *state = fe->demodulator_priv; struct stb0899_internal *internal = &state->internal; u8 div, reg; /* wait for diseqc idle */ if (stb0899_wait_diseqc_txidle(state, 100) < 0) return -ETIMEDOUT; switch (tone) { case SEC_TONE_ON: div = (internal->master_clk / 100) / 5632; div = (div + 5) / 10; stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x66); reg = stb0899_read_reg(state, STB0899_ACRPRESC); STB0899_SETFIELD_VAL(ACRPRESC, reg, 0x03); stb0899_write_reg(state, STB0899_ACRPRESC, reg); stb0899_write_reg(state, STB0899_ACRDIV1, div); break; case SEC_TONE_OFF: stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x20); break; default: return -EINVAL; } return 0; } int stb0899_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) { int i2c_stat; struct stb0899_state *state = fe->demodulator_priv; i2c_stat = stb0899_read_reg(state, STB0899_I2CRPT); if (i2c_stat < 0) goto err; if (enable) { dprintk(state->verbose, FE_DEBUG, 1, "Enabling I2C Repeater ..."); i2c_stat |= STB0899_I2CTON; if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0) goto err; } else { dprintk(state->verbose, FE_DEBUG, 1, "Disabling I2C Repeater ..."); i2c_stat &= ~STB0899_I2CTON; if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0) goto err; } return 0; err: dprintk(state->verbose, FE_ERROR, 1, "I2C Repeater control failed"); return -EREMOTEIO; } static inline void CONVERT32(u32 x, char *str) { *str++ = (x >> 24) & 0xff; *str++ = (x >> 16) & 0xff; *str++ = (x >> 8) & 0xff; *str++ = (x >> 0) & 0xff; *str = '\0'; } static int stb0899_get_dev_id(struct stb0899_state *state) { u8 chip_id, release; u16 id; u32 demod_ver = 0, fec_ver = 0; char demod_str[5] = { 0 }; char fec_str[5] = { 0 }; id = stb0899_read_reg(state, STB0899_DEV_ID); dprintk(state->verbose, FE_DEBUG, 1, "ID reg=[0x%02x]", id); chip_id = STB0899_GETFIELD(CHIP_ID, id); release = STB0899_GETFIELD(CHIP_REL, id); dprintk(state->verbose, FE_ERROR, 1, "Device ID=[%d], Release=[%d]", chip_id, release); CONVERT32(STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_CORE_ID), (char *)&demod_str); demod_ver = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_VERSION_ID); dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str, demod_ver); CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), (char *)&fec_str); fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG); if (! (chip_id > 0)) { dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899"); return -ENODEV; } dprintk(state->verbose, FE_ERROR, 1, "FEC Core ID=[%s], Version=[%d]", (char*) &fec_str, fec_ver); return 0; } static void stb0899_set_delivery(struct stb0899_state *state) { u8 reg; u8 stop_clk[2]; stop_clk[0] = stb0899_read_reg(state, STB0899_STOPCLK1); stop_clk[1] = stb0899_read_reg(state, STB0899_STOPCLK2); switch (state->delsys) { case SYS_DVBS: dprintk(state->verbose, FE_DEBUG, 1, "Delivery System -- DVB-S"); /* FECM/Viterbi ON */ reg = stb0899_read_reg(state, STB0899_FECM); STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0); STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1); stb0899_write_reg(state, STB0899_FECM, reg); stb0899_write_reg(state, STB0899_RSULC, 0xb1); stb0899_write_reg(state, STB0899_TSULC, 0x40); stb0899_write_reg(state, STB0899_RSLLC, 0x42); stb0899_write_reg(state, STB0899_TSLPL, 0x12); reg = stb0899_read_reg(state, STB0899_TSTRES); STB0899_SETFIELD_VAL(FRESLDPC, reg, 1); stb0899_write_reg(state, STB0899_TSTRES, reg); STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1); STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1); STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1); STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1); STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1); STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 1); STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0); STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1); break; case SYS_DVBS2: /* FECM/Viterbi OFF */ reg = stb0899_read_reg(state, STB0899_FECM); STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0); STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 0); stb0899_write_reg(state, STB0899_FECM, reg); stb0899_write_reg(state, STB0899_RSULC, 0xb1); stb0899_write_reg(state, STB0899_TSULC, 0x42); stb0899_write_reg(state, STB0899_RSLLC, 0x40); stb0899_write_reg(state, STB0899_TSLPL, 0x02); reg = stb0899_read_reg(state, STB0899_TSTRES); STB0899_SETFIELD_VAL(FRESLDPC, reg, 0); stb0899_write_reg(state, STB0899_TSTRES, reg); STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1); STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 0); STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 0); STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 0); STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 0); STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 0); STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0); STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 0); break; case SYS_DSS: /* FECM/Viterbi ON */ reg = stb0899_read_reg(state, STB0899_FECM); STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 1); STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1); stb0899_write_reg(state, STB0899_FECM, reg); stb0899_write_reg(state, STB0899_RSULC, 0xa1); stb0899_write_reg(state, STB0899_TSULC, 0x61); stb0899_write_reg(state, STB0899_RSLLC, 0x42); reg = stb0899_read_reg(state, STB0899_TSTRES); STB0899_SETFIELD_VAL(FRESLDPC, reg, 1); stb0899_write_reg(state, STB0899_TSTRES, reg); STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1); STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1); STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1); STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1); STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1); STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0); STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1); break; default: dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system"); break; } STB0899_SETFIELD_VAL(STOP_CKADCI108, stop_clk[0], 0); stb0899_write_regs(state, STB0899_STOPCLK1, stop_clk, 2); } /* * stb0899_set_iterations * set the LDPC iteration scale function */ static void stb0899_set_iterations(struct stb0899_state *state) { struct stb0899_internal *internal = &state->internal; struct stb0899_config *config = state->config; s32 iter_scale; u32 reg; iter_scale = 17 * (internal->master_clk / 1000); iter_scale += 410000; iter_scale /= (internal->srate / 1000000); iter_scale /= 1000; if (iter_scale > config->ldpc_max_iter) iter_scale = config->ldpc_max_iter; reg = STB0899_READ_S2REG(STB0899_S2FEC, MAX_ITER); STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale); stb0899_write_s2reg(state, STB0899_S2FEC, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg); } static enum dvbfe_search stb0899_search(struct dvb_frontend *fe) { struct stb0899_state *state = fe->demodulator_priv; struct stb0899_params *i_params = &state->params; struct stb0899_internal *internal = &state->internal; struct stb0899_config *config = state->config; struct dtv_frontend_properties *props = &fe->dtv_property_cache; u32 SearchRange, gain; i_params->freq = props->frequency; i_params->srate = props->symbol_rate; state->delsys = props->delivery_system; dprintk(state->verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys); SearchRange = 10000000; dprintk(state->verbose, FE_DEBUG, 1, "Frequency=%d, Srate=%d", i_params->freq, i_params->srate); /* checking Search Range is meaningless for a fixed 3 Mhz */ if (INRANGE(i_params->srate, 1000000, 45000000)) { dprintk(state->verbose, FE_DEBUG, 1, "Parameters IN RANGE"); stb0899_set_delivery(state); if (state->config->tuner_set_rfsiggain) { if (internal->srate > 15000000) gain = 8; /* 15Mb < srate < 45Mb, gain = 8dB */ else if (internal->srate > 5000000) gain = 12; /* 5Mb < srate < 15Mb, gain = 12dB */ else gain = 14; /* 1Mb < srate < 5Mb, gain = 14db */ state->config->tuner_set_rfsiggain(fe, gain); } if (i_params->srate <= 5000000) stb0899_set_mclk(state, config->lo_clk); else stb0899_set_mclk(state, config->hi_clk); switch (state->delsys) { case SYS_DVBS: case SYS_DSS: dprintk(state->verbose, FE_DEBUG, 1, "DVB-S delivery system"); internal->freq = i_params->freq; internal->srate = i_params->srate; /* * search = user search range + * 500Khz + * 2 * Tuner_step_size + * 10% of the symbol rate */ internal->srch_range = SearchRange + 1500000 + (i_params->srate / 5); internal->derot_percent = 30; /* What to do for tuners having no bandwidth setup ? */ /* enable tuner I/O */ stb0899_i2c_gate_ctrl(&state->frontend, 1); if (state->config->tuner_set_bandwidth) state->config->tuner_set_bandwidth(fe, (13 * (stb0899_carr_width(state) + SearchRange)) / 10); if (state->config->tuner_get_bandwidth) state->config->tuner_get_bandwidth(fe, &internal->tuner_bw); /* disable tuner I/O */ stb0899_i2c_gate_ctrl(&state->frontend, 0); /* Set DVB-S1 AGC */ stb0899_write_reg(state, STB0899_AGCRFCFG, 0x11); /* Run the search algorithm */ dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S search algo .."); if (stb0899_dvbs_algo(state) == RANGEOK) { internal->lock = 1; dprintk(state->verbose, FE_DEBUG, 1, "-------------------------------------> DVB-S LOCK !"); // stb0899_write_reg(state, STB0899_ERRCTRL1, 0x3d); /* Viterbi Errors */ // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS); // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1); // dprintk(state->verbose, FE_DEBUG, 1, "VSTATUS=0x%02x", internal->v_status); // dprintk(state->verbose, FE_DEBUG, 1, "ERR_CTRL=0x%02x", internal->err_ctrl); return DVBFE_ALGO_SEARCH_SUCCESS; } else { internal->lock = 0; return DVBFE_ALGO_SEARCH_FAILED; } break; case SYS_DVBS2: internal->freq = i_params->freq; internal->srate = i_params->srate; internal->srch_range = SearchRange; /* enable tuner I/O */ stb0899_i2c_gate_ctrl(&state->frontend, 1); if (state->config->tuner_set_bandwidth) state->config->tuner_set_bandwidth(fe, (stb0899_carr_width(state) + SearchRange)); if (state->config->tuner_get_bandwidth) state->config->tuner_get_bandwidth(fe, &internal->tuner_bw); /* disable tuner I/O */ stb0899_i2c_gate_ctrl(&state->frontend, 0); // pParams->SpectralInv = pSearch->IQ_Inversion; /* Set DVB-S2 AGC */ stb0899_write_reg(state, STB0899_AGCRFCFG, 0x1c); /* Set IterScale =f(MCLK,SYMB) */ stb0899_set_iterations(state); /* Run the search algorithm */ dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S2 search algo .."); if (stb0899_dvbs2_algo(state) == DVBS2_FEC_LOCK) { internal->lock = 1; dprintk(state->verbose, FE_DEBUG, 1, "-------------------------------------> DVB-S2 LOCK !"); // stb0899_write_reg(state, STB0899_ERRCTRL1, 0xb6); /* Packet Errors */ // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS); // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1); return DVBFE_ALGO_SEARCH_SUCCESS; } else { internal->lock = 0; return DVBFE_ALGO_SEARCH_FAILED; } break; default: dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system"); return DVBFE_ALGO_SEARCH_INVALID; } } return DVBFE_ALGO_SEARCH_ERROR; } static int stb0899_get_frontend(struct dvb_frontend *fe, struct dtv_frontend_properties *p) { struct stb0899_state *state = fe->demodulator_priv; struct stb0899_internal *internal = &state->internal; dprintk(state->verbose, FE_DEBUG, 1, "Get params"); p->symbol_rate = internal->srate; p->frequency = internal->freq; return 0; } static enum dvbfe_algo stb0899_frontend_algo(struct dvb_frontend *fe) { return DVBFE_ALGO_CUSTOM; } static const struct dvb_frontend_ops stb0899_ops = { .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS }, .info = { .name = "STB0899 Multistandard", .frequency_min_hz = 950 * MHz, .frequency_max_hz = 2150 * MHz, .symbol_rate_min = 5000000, .symbol_rate_max = 45000000, .caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_AUTO | FE_CAN_2G_MODULATION | FE_CAN_QPSK }, .detach = stb0899_detach, .release = stb0899_release, .init = stb0899_init, .sleep = stb0899_sleep, // .wakeup = stb0899_wakeup, .i2c_gate_ctrl = stb0899_i2c_gate_ctrl, .get_frontend_algo = stb0899_frontend_algo, .search = stb0899_search, .get_frontend = stb0899_get_frontend, .read_status = stb0899_read_status, .read_snr = stb0899_read_snr, .read_signal_strength = stb0899_read_signal_strength, .read_ber = stb0899_read_ber, .set_voltage = stb0899_set_voltage, .set_tone = stb0899_set_tone, .diseqc_send_master_cmd = stb0899_send_diseqc_msg, .diseqc_recv_slave_reply = stb0899_recv_slave_reply, .diseqc_send_burst = stb0899_send_diseqc_burst, }; struct dvb_frontend *stb0899_attach(struct stb0899_config *config, struct i2c_adapter *i2c) { struct stb0899_state *state = NULL; state = kzalloc(sizeof (struct stb0899_state), GFP_KERNEL); if (state == NULL) goto error; state->verbose = &verbose; state->config = config; state->i2c = i2c; state->frontend.ops = stb0899_ops; state->frontend.demodulator_priv = state; /* use configured inversion as default -- we'll later autodetect inversion */ state->internal.inversion = config->inversion; stb0899_wakeup(&state->frontend); if (stb0899_get_dev_id(state) == -ENODEV) { printk("%s: Exiting .. !\n", __func__); goto error; } printk("%s: Attaching STB0899 \n", __func__); return &state->frontend; error: kfree(state); return NULL; } EXPORT_SYMBOL(stb0899_attach); MODULE_PARM_DESC(verbose, "Set Verbosity level"); MODULE_AUTHOR("Manu Abraham"); MODULE_DESCRIPTION("STB0899 Multi-Std frontend"); MODULE_LICENSE("GPL");
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