diff options
Diffstat (limited to 'drivers/media/dvb/frontends/qt1010.c')
-rw-r--r-- | drivers/media/dvb/frontends/qt1010.c | 485 |
1 files changed, 0 insertions, 485 deletions
diff --git a/drivers/media/dvb/frontends/qt1010.c b/drivers/media/dvb/frontends/qt1010.c deleted file mode 100644 index 825aa14..0000000 --- a/drivers/media/dvb/frontends/qt1010.c +++ /dev/null @@ -1,485 +0,0 @@ -/* - * Driver for Quantek QT1010 silicon tuner - * - * Copyright (C) 2006 Antti Palosaari <crope@iki.fi> - * Aapo Tahkola <aet@rasterburn.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 "qt1010.h" -#include "qt1010_priv.h" - -static int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); - -#define dprintk(args...) \ - do { \ - if (debug) printk(KERN_DEBUG "QT1010: " args); \ - } while (0) - -/* read single register */ -static int qt1010_readreg(struct qt1010_priv *priv, u8 reg, u8 *val) -{ - struct i2c_msg msg[2] = { - { .addr = priv->cfg->i2c_address, - .flags = 0, .buf = ®, .len = 1 }, - { .addr = priv->cfg->i2c_address, - .flags = I2C_M_RD, .buf = val, .len = 1 }, - }; - - if (i2c_transfer(priv->i2c, msg, 2) != 2) { - printk(KERN_WARNING "qt1010 I2C read failed\n"); - return -EREMOTEIO; - } - return 0; -} - -/* write single register */ -static int qt1010_writereg(struct qt1010_priv *priv, u8 reg, u8 val) -{ - u8 buf[2] = { reg, val }; - struct i2c_msg msg = { .addr = priv->cfg->i2c_address, - .flags = 0, .buf = buf, .len = 2 }; - - if (i2c_transfer(priv->i2c, &msg, 1) != 1) { - printk(KERN_WARNING "qt1010 I2C write failed\n"); - return -EREMOTEIO; - } - return 0; -} - -/* dump all registers */ -static void qt1010_dump_regs(struct qt1010_priv *priv) -{ - char buf[52], buf2[4]; - u8 reg, val; - - for (reg = 0; ; reg++) { - if (reg % 16 == 0) { - if (reg) - printk("%s\n", buf); - sprintf(buf, "%02x: ", reg); - } - if (qt1010_readreg(priv, reg, &val) == 0) - sprintf(buf2, "%02x ", val); - else - strcpy(buf2, "-- "); - strcat(buf, buf2); - if (reg == 0x2f) - break; - } - printk("%s\n", buf); -} - -static int qt1010_set_params(struct dvb_frontend *fe, - struct dvb_frontend_parameters *params) -{ - struct qt1010_priv *priv; - int err; - u32 freq, div, mod1, mod2; - u8 i, tmpval, reg05; - qt1010_i2c_oper_t rd[48] = { - { QT1010_WR, 0x01, 0x80 }, - { QT1010_WR, 0x02, 0x3f }, - { QT1010_WR, 0x05, 0xff }, /* 02 c write */ - { QT1010_WR, 0x06, 0x44 }, - { QT1010_WR, 0x07, 0xff }, /* 04 c write */ - { QT1010_WR, 0x08, 0x08 }, - { QT1010_WR, 0x09, 0xff }, /* 06 c write */ - { QT1010_WR, 0x0a, 0xff }, /* 07 c write */ - { QT1010_WR, 0x0b, 0xff }, /* 08 c write */ - { QT1010_WR, 0x0c, 0xe1 }, - { QT1010_WR, 0x1a, 0xff }, /* 10 c write */ - { QT1010_WR, 0x1b, 0x00 }, - { QT1010_WR, 0x1c, 0x89 }, - { QT1010_WR, 0x11, 0xff }, /* 13 c write */ - { QT1010_WR, 0x12, 0xff }, /* 14 c write */ - { QT1010_WR, 0x22, 0xff }, /* 15 c write */ - { QT1010_WR, 0x1e, 0x00 }, - { QT1010_WR, 0x1e, 0xd0 }, - { QT1010_RD, 0x22, 0xff }, /* 16 c read */ - { QT1010_WR, 0x1e, 0x00 }, - { QT1010_RD, 0x05, 0xff }, /* 20 c read */ - { QT1010_RD, 0x22, 0xff }, /* 21 c read */ - { QT1010_WR, 0x23, 0xd0 }, - { QT1010_WR, 0x1e, 0x00 }, - { QT1010_WR, 0x1e, 0xe0 }, - { QT1010_RD, 0x23, 0xff }, /* 25 c read */ - { QT1010_RD, 0x23, 0xff }, /* 26 c read */ - { QT1010_WR, 0x1e, 0x00 }, - { QT1010_WR, 0x24, 0xd0 }, - { QT1010_WR, 0x1e, 0x00 }, - { QT1010_WR, 0x1e, 0xf0 }, - { QT1010_RD, 0x24, 0xff }, /* 31 c read */ - { QT1010_WR, 0x1e, 0x00 }, - { QT1010_WR, 0x14, 0x7f }, - { QT1010_WR, 0x15, 0x7f }, - { QT1010_WR, 0x05, 0xff }, /* 35 c write */ - { QT1010_WR, 0x06, 0x00 }, - { QT1010_WR, 0x15, 0x1f }, - { QT1010_WR, 0x16, 0xff }, - { QT1010_WR, 0x18, 0xff }, - { QT1010_WR, 0x1f, 0xff }, /* 40 c write */ - { QT1010_WR, 0x20, 0xff }, /* 41 c write */ - { QT1010_WR, 0x21, 0x53 }, - { QT1010_WR, 0x25, 0xff }, /* 43 c write */ - { QT1010_WR, 0x26, 0x15 }, - { QT1010_WR, 0x00, 0xff }, /* 45 c write */ - { QT1010_WR, 0x02, 0x00 }, - { QT1010_WR, 0x01, 0x00 } - }; - -#define FREQ1 32000000 /* 32 MHz */ -#define FREQ2 4000000 /* 4 MHz Quartz oscillator in the stick? */ - - priv = fe->tuner_priv; - freq = params->frequency; - div = (freq + QT1010_OFFSET) / QT1010_STEP; - freq = (div * QT1010_STEP) - QT1010_OFFSET; - mod1 = (freq + QT1010_OFFSET) % FREQ1; - mod2 = (freq + QT1010_OFFSET) % FREQ2; - priv->bandwidth = - (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0; - priv->frequency = freq; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */ - - /* reg 05 base value */ - if (freq < 290000000) reg05 = 0x14; /* 290 MHz */ - else if (freq < 610000000) reg05 = 0x34; /* 610 MHz */ - else if (freq < 802000000) reg05 = 0x54; /* 802 MHz */ - else reg05 = 0x74; - - /* 0x5 */ - rd[2].val = reg05; - - /* 07 - set frequency: 32 MHz scale */ - rd[4].val = (freq + QT1010_OFFSET) / FREQ1; - - /* 09 - changes every 8/24 MHz */ - if (mod1 < 8000000) rd[6].val = 0x1d; - else rd[6].val = 0x1c; - - /* 0a - set frequency: 4 MHz scale (max 28 MHz) */ - if (mod1 < 1*FREQ2) rd[7].val = 0x09; /* +0 MHz */ - else if (mod1 < 2*FREQ2) rd[7].val = 0x08; /* +4 MHz */ - else if (mod1 < 3*FREQ2) rd[7].val = 0x0f; /* +8 MHz */ - else if (mod1 < 4*FREQ2) rd[7].val = 0x0e; /* +12 MHz */ - else if (mod1 < 5*FREQ2) rd[7].val = 0x0d; /* +16 MHz */ - else if (mod1 < 6*FREQ2) rd[7].val = 0x0c; /* +20 MHz */ - else if (mod1 < 7*FREQ2) rd[7].val = 0x0b; /* +24 MHz */ - else rd[7].val = 0x0a; /* +28 MHz */ - - /* 0b - changes every 2/2 MHz */ - if (mod2 < 2000000) rd[8].val = 0x45; - else rd[8].val = 0x44; - - /* 1a - set frequency: 125 kHz scale (max 3875 kHz)*/ - tmpval = 0x78; /* byte, overflows intentionally */ - rd[10].val = tmpval-((mod2/QT1010_STEP)*0x08); - - /* 11 */ - rd[13].val = 0xfd; /* TODO: correct value calculation */ - - /* 12 */ - rd[14].val = 0x91; /* TODO: correct value calculation */ - - /* 22 */ - if (freq < 450000000) rd[15].val = 0xd0; /* 450 MHz */ - else if (freq < 482000000) rd[15].val = 0xd1; /* 482 MHz */ - else if (freq < 514000000) rd[15].val = 0xd4; /* 514 MHz */ - else if (freq < 546000000) rd[15].val = 0xd7; /* 546 MHz */ - else if (freq < 610000000) rd[15].val = 0xda; /* 610 MHz */ - else rd[15].val = 0xd0; - - /* 05 */ - rd[35].val = (reg05 & 0xf0); - - /* 1f */ - if (mod1 < 8000000) tmpval = 0x00; - else if (mod1 < 12000000) tmpval = 0x01; - else if (mod1 < 16000000) tmpval = 0x02; - else if (mod1 < 24000000) tmpval = 0x03; - else if (mod1 < 28000000) tmpval = 0x04; - else tmpval = 0x05; - rd[40].val = (priv->reg1f_init_val + 0x0e + tmpval); - - /* 20 */ - if (mod1 < 8000000) tmpval = 0x00; - else if (mod1 < 12000000) tmpval = 0x01; - else if (mod1 < 20000000) tmpval = 0x02; - else if (mod1 < 24000000) tmpval = 0x03; - else if (mod1 < 28000000) tmpval = 0x04; - else tmpval = 0x05; - rd[41].val = (priv->reg20_init_val + 0x0d + tmpval); - - /* 25 */ - rd[43].val = priv->reg25_init_val; - - /* 00 */ - rd[45].val = 0x92; /* TODO: correct value calculation */ - - dprintk("freq:%u 05:%02x 07:%02x 09:%02x 0a:%02x 0b:%02x " \ - "1a:%02x 11:%02x 12:%02x 22:%02x 05:%02x 1f:%02x " \ - "20:%02x 25:%02x 00:%02x", \ - freq, rd[2].val, rd[4].val, rd[6].val, rd[7].val, rd[8].val, \ - rd[10].val, rd[13].val, rd[14].val, rd[15].val, rd[35].val, \ - rd[40].val, rd[41].val, rd[43].val, rd[45].val); - - for (i = 0; i < ARRAY_SIZE(rd); i++) { - if (rd[i].oper == QT1010_WR) { - err = qt1010_writereg(priv, rd[i].reg, rd[i].val); - } else { /* read is required to proper locking */ - err = qt1010_readreg(priv, rd[i].reg, &tmpval); - } - if (err) return err; - } - - if (debug) - qt1010_dump_regs(priv); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */ - - return 0; -} - -static int qt1010_init_meas1(struct qt1010_priv *priv, - u8 oper, u8 reg, u8 reg_init_val, u8 *retval) -{ - u8 i, val1, val2; - int err; - - qt1010_i2c_oper_t i2c_data[] = { - { QT1010_WR, reg, reg_init_val }, - { QT1010_WR, 0x1e, 0x00 }, - { QT1010_WR, 0x1e, oper }, - { QT1010_RD, reg, 0xff } - }; - - for (i = 0; i < ARRAY_SIZE(i2c_data); i++) { - if (i2c_data[i].oper == QT1010_WR) { - err = qt1010_writereg(priv, i2c_data[i].reg, - i2c_data[i].val); - } else { - err = qt1010_readreg(priv, i2c_data[i].reg, &val2); - } - if (err) return err; - } - - do { - val1 = val2; - err = qt1010_readreg(priv, reg, &val2); - if (err) return err; - dprintk("compare reg:%02x %02x %02x", reg, val1, val2); - } while (val1 != val2); - *retval = val1; - - return qt1010_writereg(priv, 0x1e, 0x00); -} - -static u8 qt1010_init_meas2(struct qt1010_priv *priv, - u8 reg_init_val, u8 *retval) -{ - u8 i, val; - int err; - qt1010_i2c_oper_t i2c_data[] = { - { QT1010_WR, 0x07, reg_init_val }, - { QT1010_WR, 0x22, 0xd0 }, - { QT1010_WR, 0x1e, 0x00 }, - { QT1010_WR, 0x1e, 0xd0 }, - { QT1010_RD, 0x22, 0xff }, - { QT1010_WR, 0x1e, 0x00 }, - { QT1010_WR, 0x22, 0xff } - }; - for (i = 0; i < ARRAY_SIZE(i2c_data); i++) { - if (i2c_data[i].oper == QT1010_WR) { - err = qt1010_writereg(priv, i2c_data[i].reg, - i2c_data[i].val); - } else { - err = qt1010_readreg(priv, i2c_data[i].reg, &val); - } - if (err) return err; - } - *retval = val; - return 0; -} - -static int qt1010_init(struct dvb_frontend *fe) -{ - struct qt1010_priv *priv = fe->tuner_priv; - struct dvb_frontend_parameters params; - int err = 0; - u8 i, tmpval, *valptr = NULL; - - qt1010_i2c_oper_t i2c_data[] = { - { QT1010_WR, 0x01, 0x80 }, - { QT1010_WR, 0x0d, 0x84 }, - { QT1010_WR, 0x0e, 0xb7 }, - { QT1010_WR, 0x2a, 0x23 }, - { QT1010_WR, 0x2c, 0xdc }, - { QT1010_M1, 0x25, 0x40 }, /* get reg 25 init value */ - { QT1010_M1, 0x81, 0xff }, /* get reg 25 init value */ - { QT1010_WR, 0x2b, 0x70 }, - { QT1010_WR, 0x2a, 0x23 }, - { QT1010_M1, 0x26, 0x08 }, - { QT1010_M1, 0x82, 0xff }, - { QT1010_WR, 0x05, 0x14 }, - { QT1010_WR, 0x06, 0x44 }, - { QT1010_WR, 0x07, 0x28 }, - { QT1010_WR, 0x08, 0x0b }, - { QT1010_WR, 0x11, 0xfd }, - { QT1010_M1, 0x22, 0x0d }, - { QT1010_M1, 0xd0, 0xff }, - { QT1010_WR, 0x06, 0x40 }, - { QT1010_WR, 0x16, 0xf0 }, - { QT1010_WR, 0x02, 0x38 }, - { QT1010_WR, 0x03, 0x18 }, - { QT1010_WR, 0x20, 0xe0 }, - { QT1010_M1, 0x1f, 0x20 }, /* get reg 1f init value */ - { QT1010_M1, 0x84, 0xff }, /* get reg 1f init value */ - { QT1010_RD, 0x20, 0x20 }, /* get reg 20 init value */ - { QT1010_WR, 0x03, 0x19 }, - { QT1010_WR, 0x02, 0x3f }, - { QT1010_WR, 0x21, 0x53 }, - { QT1010_RD, 0x21, 0xff }, - { QT1010_WR, 0x11, 0xfd }, - { QT1010_WR, 0x05, 0x34 }, - { QT1010_WR, 0x06, 0x44 }, - { QT1010_WR, 0x08, 0x08 } - }; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */ - - for (i = 0; i < ARRAY_SIZE(i2c_data); i++) { - switch (i2c_data[i].oper) { - case QT1010_WR: - err = qt1010_writereg(priv, i2c_data[i].reg, - i2c_data[i].val); - break; - case QT1010_RD: - if (i2c_data[i].val == 0x20) - valptr = &priv->reg20_init_val; - else - valptr = &tmpval; - err = qt1010_readreg(priv, i2c_data[i].reg, valptr); - break; - case QT1010_M1: - if (i2c_data[i].val == 0x25) - valptr = &priv->reg25_init_val; - else if (i2c_data[i].val == 0x1f) - valptr = &priv->reg1f_init_val; - else - valptr = &tmpval; - err = qt1010_init_meas1(priv, i2c_data[i+1].reg, - i2c_data[i].reg, - i2c_data[i].val, valptr); - i++; - break; - } - if (err) return err; - } - - for (i = 0x31; i < 0x3a; i++) /* 0x31 - 0x39 */ - if ((err = qt1010_init_meas2(priv, i, &tmpval))) - return err; - - params.frequency = 545000000; /* Sigmatek DVB-110 545000000 */ - /* MSI Megasky 580 GL861 533000000 */ - return qt1010_set_params(fe, ¶ms); -} - -static int qt1010_release(struct dvb_frontend *fe) -{ - kfree(fe->tuner_priv); - fe->tuner_priv = NULL; - return 0; -} - -static int qt1010_get_frequency(struct dvb_frontend *fe, u32 *frequency) -{ - struct qt1010_priv *priv = fe->tuner_priv; - *frequency = priv->frequency; - return 0; -} - -static int qt1010_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) -{ - struct qt1010_priv *priv = fe->tuner_priv; - *bandwidth = priv->bandwidth; - return 0; -} - -static const struct dvb_tuner_ops qt1010_tuner_ops = { - .info = { - .name = "Quantek QT1010", - .frequency_min = QT1010_MIN_FREQ, - .frequency_max = QT1010_MAX_FREQ, - .frequency_step = QT1010_STEP, - }, - - .release = qt1010_release, - .init = qt1010_init, - /* TODO: implement sleep */ - - .set_params = qt1010_set_params, - .get_frequency = qt1010_get_frequency, - .get_bandwidth = qt1010_get_bandwidth -}; - -struct dvb_frontend * qt1010_attach(struct dvb_frontend *fe, - struct i2c_adapter *i2c, - struct qt1010_config *cfg) -{ - struct qt1010_priv *priv = NULL; - u8 id; - - priv = kzalloc(sizeof(struct qt1010_priv), GFP_KERNEL); - if (priv == NULL) - return NULL; - - priv->cfg = cfg; - priv->i2c = i2c; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */ - - - /* Try to detect tuner chip. Probably this is not correct register. */ - if (qt1010_readreg(priv, 0x29, &id) != 0 || (id != 0x39)) { - kfree(priv); - return NULL; - } - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */ - - printk(KERN_INFO "Quantek QT1010 successfully identified.\n"); - memcpy(&fe->ops.tuner_ops, &qt1010_tuner_ops, - sizeof(struct dvb_tuner_ops)); - - fe->tuner_priv = priv; - return fe; -} -EXPORT_SYMBOL(qt1010_attach); - -MODULE_DESCRIPTION("Quantek QT1010 silicon tuner driver"); -MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); -MODULE_AUTHOR("Aapo Tahkola <aet@rasterburn.org>"); -MODULE_VERSION("0.1"); -MODULE_LICENSE("GPL"); |