diff options
Diffstat (limited to 'drivers/media/dvb/frontends/ds3000.c')
| -rw-r--r-- | drivers/media/dvb/frontends/ds3000.c | 1312 |
1 files changed, 0 insertions, 1312 deletions
diff --git a/drivers/media/dvb/frontends/ds3000.c b/drivers/media/dvb/frontends/ds3000.c deleted file mode 100644 index 4c8ac26..0000000 --- a/drivers/media/dvb/frontends/ds3000.c +++ /dev/null @@ -1,1312 +0,0 @@ -/* - Montage Technology DS3000/TS2020 - DVBS/S2 Demodulator/Tuner driver - Copyright (C) 2009 Konstantin Dimitrov <kosio.dimitrov@gmail.com> - - Copyright (C) 2009 TurboSight.com - - 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/slab.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/init.h> -#include <linux/firmware.h> - -#include "dvb_frontend.h" -#include "ds3000.h" - -static int debug; - -#define dprintk(args...) \ - do { \ - if (debug) \ - printk(args); \ - } while (0) - -/* as of March 2009 current DS3000 firmware version is 1.78 */ -/* DS3000 FW v1.78 MD5: a32d17910c4f370073f9346e71d34b80 */ -#define DS3000_DEFAULT_FIRMWARE "dvb-fe-ds3000.fw" - -#define DS3000_SAMPLE_RATE 96000 /* in kHz */ -#define DS3000_XTAL_FREQ 27000 /* in kHz */ - -/* Register values to initialise the demod in DVB-S mode */ -static u8 ds3000_dvbs_init_tab[] = { - 0x23, 0x05, - 0x08, 0x03, - 0x0c, 0x00, - 0x21, 0x54, - 0x25, 0x82, - 0x27, 0x31, - 0x30, 0x08, - 0x31, 0x40, - 0x32, 0x32, - 0x33, 0x35, - 0x35, 0xff, - 0x3a, 0x00, - 0x37, 0x10, - 0x38, 0x10, - 0x39, 0x02, - 0x42, 0x60, - 0x4a, 0x40, - 0x4b, 0x04, - 0x4d, 0x91, - 0x5d, 0xc8, - 0x50, 0x77, - 0x51, 0x77, - 0x52, 0x36, - 0x53, 0x36, - 0x56, 0x01, - 0x63, 0x43, - 0x64, 0x30, - 0x65, 0x40, - 0x68, 0x26, - 0x69, 0x4c, - 0x70, 0x20, - 0x71, 0x70, - 0x72, 0x04, - 0x73, 0x00, - 0x70, 0x40, - 0x71, 0x70, - 0x72, 0x04, - 0x73, 0x00, - 0x70, 0x60, - 0x71, 0x70, - 0x72, 0x04, - 0x73, 0x00, - 0x70, 0x80, - 0x71, 0x70, - 0x72, 0x04, - 0x73, 0x00, - 0x70, 0xa0, - 0x71, 0x70, - 0x72, 0x04, - 0x73, 0x00, - 0x70, 0x1f, - 0x76, 0x00, - 0x77, 0xd1, - 0x78, 0x0c, - 0x79, 0x80, - 0x7f, 0x04, - 0x7c, 0x00, - 0x80, 0x86, - 0x81, 0xa6, - 0x85, 0x04, - 0xcd, 0xf4, - 0x90, 0x33, - 0xa0, 0x44, - 0xc0, 0x18, - 0xc3, 0x10, - 0xc4, 0x08, - 0xc5, 0x80, - 0xc6, 0x80, - 0xc7, 0x0a, - 0xc8, 0x1a, - 0xc9, 0x80, - 0xfe, 0x92, - 0xe0, 0xf8, - 0xe6, 0x8b, - 0xd0, 0x40, - 0xf8, 0x20, - 0xfa, 0x0f, - 0xfd, 0x20, - 0xad, 0x20, - 0xae, 0x07, - 0xb8, 0x00, -}; - -/* Register values to initialise the demod in DVB-S2 mode */ -static u8 ds3000_dvbs2_init_tab[] = { - 0x23, 0x0f, - 0x08, 0x07, - 0x0c, 0x00, - 0x21, 0x54, - 0x25, 0x82, - 0x27, 0x31, - 0x30, 0x08, - 0x31, 0x32, - 0x32, 0x32, - 0x33, 0x35, - 0x35, 0xff, - 0x3a, 0x00, - 0x37, 0x10, - 0x38, 0x10, - 0x39, 0x02, - 0x42, 0x60, - 0x4a, 0x80, - 0x4b, 0x04, - 0x4d, 0x81, - 0x5d, 0x88, - 0x50, 0x36, - 0x51, 0x36, - 0x52, 0x36, - 0x53, 0x36, - 0x63, 0x60, - 0x64, 0x10, - 0x65, 0x10, - 0x68, 0x04, - 0x69, 0x29, - 0x70, 0x20, - 0x71, 0x70, - 0x72, 0x04, - 0x73, 0x00, - 0x70, 0x40, - 0x71, 0x70, - 0x72, 0x04, - 0x73, 0x00, - 0x70, 0x60, - 0x71, 0x70, - 0x72, 0x04, - 0x73, 0x00, - 0x70, 0x80, - 0x71, 0x70, - 0x72, 0x04, - 0x73, 0x00, - 0x70, 0xa0, - 0x71, 0x70, - 0x72, 0x04, - 0x73, 0x00, - 0x70, 0x1f, - 0xa0, 0x44, - 0xc0, 0x08, - 0xc1, 0x10, - 0xc2, 0x08, - 0xc3, 0x10, - 0xc4, 0x08, - 0xc5, 0xf0, - 0xc6, 0xf0, - 0xc7, 0x0a, - 0xc8, 0x1a, - 0xc9, 0x80, - 0xca, 0x23, - 0xcb, 0x24, - 0xce, 0x74, - 0x90, 0x03, - 0x76, 0x80, - 0x77, 0x42, - 0x78, 0x0a, - 0x79, 0x80, - 0xad, 0x40, - 0xae, 0x07, - 0x7f, 0xd4, - 0x7c, 0x00, - 0x80, 0xa8, - 0x81, 0xda, - 0x7c, 0x01, - 0x80, 0xda, - 0x81, 0xec, - 0x7c, 0x02, - 0x80, 0xca, - 0x81, 0xeb, - 0x7c, 0x03, - 0x80, 0xba, - 0x81, 0xdb, - 0x85, 0x08, - 0x86, 0x00, - 0x87, 0x02, - 0x89, 0x80, - 0x8b, 0x44, - 0x8c, 0xaa, - 0x8a, 0x10, - 0xba, 0x00, - 0xf5, 0x04, - 0xfe, 0x44, - 0xd2, 0x32, - 0xb8, 0x00, -}; - -struct ds3000_state { - struct i2c_adapter *i2c; - const struct ds3000_config *config; - struct dvb_frontend frontend; - u8 skip_fw_load; - /* previous uncorrected block counter for DVB-S2 */ - u16 prevUCBS2; -}; - -static int ds3000_writereg(struct ds3000_state *state, int reg, int data) -{ - u8 buf[] = { reg, data }; - struct i2c_msg msg = { .addr = state->config->demod_address, - .flags = 0, .buf = buf, .len = 2 }; - int err; - - dprintk("%s: write reg 0x%02x, value 0x%02x\n", __func__, reg, data); - - err = i2c_transfer(state->i2c, &msg, 1); - if (err != 1) { - printk(KERN_ERR "%s: writereg error(err == %i, reg == 0x%02x," - " value == 0x%02x)\n", __func__, err, reg, data); - return -EREMOTEIO; - } - - return 0; -} - -static int ds3000_tuner_writereg(struct ds3000_state *state, int reg, int data) -{ - u8 buf[] = { reg, data }; - struct i2c_msg msg = { .addr = 0x60, - .flags = 0, .buf = buf, .len = 2 }; - int err; - - dprintk("%s: write reg 0x%02x, value 0x%02x\n", __func__, reg, data); - - ds3000_writereg(state, 0x03, 0x11); - err = i2c_transfer(state->i2c, &msg, 1); - if (err != 1) { - printk("%s: writereg error(err == %i, reg == 0x%02x," - " value == 0x%02x)\n", __func__, err, reg, data); - return -EREMOTEIO; - } - - return 0; -} - -/* I2C write for 8k firmware load */ -static int ds3000_writeFW(struct ds3000_state *state, int reg, - const u8 *data, u16 len) -{ - int i, ret = -EREMOTEIO; - struct i2c_msg msg; - u8 *buf; - - buf = kmalloc(33, GFP_KERNEL); - if (buf == NULL) { - printk(KERN_ERR "Unable to kmalloc\n"); - ret = -ENOMEM; - goto error; - } - - *(buf) = reg; - - msg.addr = state->config->demod_address; - msg.flags = 0; - msg.buf = buf; - msg.len = 33; - - for (i = 0; i < len; i += 32) { - memcpy(buf + 1, data + i, 32); - - dprintk("%s: write reg 0x%02x, len = %d\n", __func__, reg, len); - - ret = i2c_transfer(state->i2c, &msg, 1); - if (ret != 1) { - printk(KERN_ERR "%s: write error(err == %i, " - "reg == 0x%02x\n", __func__, ret, reg); - ret = -EREMOTEIO; - } - } - -error: - kfree(buf); - - return ret; -} - -static int ds3000_readreg(struct ds3000_state *state, u8 reg) -{ - int ret; - 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 - } - }; - - ret = i2c_transfer(state->i2c, msg, 2); - - if (ret != 2) { - printk(KERN_ERR "%s: reg=0x%x(error=%d)\n", __func__, reg, ret); - return ret; - } - - dprintk("%s: read reg 0x%02x, value 0x%02x\n", __func__, reg, b1[0]); - - return b1[0]; -} - -static int ds3000_tuner_readreg(struct ds3000_state *state, u8 reg) -{ - int ret; - u8 b0[] = { reg }; - u8 b1[] = { 0 }; - struct i2c_msg msg[] = { - { - .addr = 0x60, - .flags = 0, - .buf = b0, - .len = 1 - }, { - .addr = 0x60, - .flags = I2C_M_RD, - .buf = b1, - .len = 1 - } - }; - - ds3000_writereg(state, 0x03, 0x12); - ret = i2c_transfer(state->i2c, msg, 2); - - if (ret != 2) { - printk(KERN_ERR "%s: reg=0x%x(error=%d)\n", __func__, reg, ret); - return ret; - } - - dprintk("%s: read reg 0x%02x, value 0x%02x\n", __func__, reg, b1[0]); - - return b1[0]; -} - -static int ds3000_load_firmware(struct dvb_frontend *fe, - const struct firmware *fw); - -static int ds3000_firmware_ondemand(struct dvb_frontend *fe) -{ - struct ds3000_state *state = fe->demodulator_priv; - const struct firmware *fw; - int ret = 0; - - dprintk("%s()\n", __func__); - - if (ds3000_readreg(state, 0xb2) <= 0) - return ret; - - if (state->skip_fw_load) - return 0; - /* Load firmware */ - /* request the firmware, this will block until someone uploads it */ - printk(KERN_INFO "%s: Waiting for firmware upload (%s)...\n", __func__, - DS3000_DEFAULT_FIRMWARE); - ret = request_firmware(&fw, DS3000_DEFAULT_FIRMWARE, - state->i2c->dev.parent); - printk(KERN_INFO "%s: Waiting for firmware upload(2)...\n", __func__); - if (ret) { - printk(KERN_ERR "%s: No firmware uploaded (timeout or file not " - "found?)\n", __func__); - return ret; - } - - /* Make sure we don't recurse back through here during loading */ - state->skip_fw_load = 1; - - ret = ds3000_load_firmware(fe, fw); - if (ret) - printk("%s: Writing firmware to device failed\n", __func__); - - release_firmware(fw); - - dprintk("%s: Firmware upload %s\n", __func__, - ret == 0 ? "complete" : "failed"); - - /* Ensure firmware is always loaded if required */ - state->skip_fw_load = 0; - - return ret; -} - -static int ds3000_load_firmware(struct dvb_frontend *fe, - const struct firmware *fw) -{ - struct ds3000_state *state = fe->demodulator_priv; - - dprintk("%s\n", __func__); - dprintk("Firmware is %zu bytes (%02x %02x .. %02x %02x)\n", - fw->size, - fw->data[0], - fw->data[1], - fw->data[fw->size - 2], - fw->data[fw->size - 1]); - - /* Begin the firmware load process */ - ds3000_writereg(state, 0xb2, 0x01); - /* write the entire firmware */ - ds3000_writeFW(state, 0xb0, fw->data, fw->size); - ds3000_writereg(state, 0xb2, 0x00); - - return 0; -} - -static int ds3000_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage) -{ - struct ds3000_state *state = fe->demodulator_priv; - u8 data; - - dprintk("%s(%d)\n", __func__, voltage); - - data = ds3000_readreg(state, 0xa2); - data |= 0x03; /* bit0 V/H, bit1 off/on */ - - switch (voltage) { - case SEC_VOLTAGE_18: - data &= ~0x03; - break; - case SEC_VOLTAGE_13: - data &= ~0x03; - data |= 0x01; - break; - case SEC_VOLTAGE_OFF: - break; - } - - ds3000_writereg(state, 0xa2, data); - - return 0; -} - -static int ds3000_read_status(struct dvb_frontend *fe, fe_status_t* status) -{ - struct ds3000_state *state = fe->demodulator_priv; - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - int lock; - - *status = 0; - - switch (c->delivery_system) { - case SYS_DVBS: - lock = ds3000_readreg(state, 0xd1); - if ((lock & 0x07) == 0x07) - *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | - FE_HAS_VITERBI | FE_HAS_SYNC | - FE_HAS_LOCK; - - break; - case SYS_DVBS2: - lock = ds3000_readreg(state, 0x0d); - if ((lock & 0x8f) == 0x8f) - *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | - FE_HAS_VITERBI | FE_HAS_SYNC | - FE_HAS_LOCK; - - break; - default: - return 1; - } - - dprintk("%s: status = 0x%02x\n", __func__, lock); - - return 0; -} - -/* read DS3000 BER value */ -static int ds3000_read_ber(struct dvb_frontend *fe, u32* ber) -{ - struct ds3000_state *state = fe->demodulator_priv; - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - u8 data; - u32 ber_reading, lpdc_frames; - - dprintk("%s()\n", __func__); - - switch (c->delivery_system) { - case SYS_DVBS: - /* set the number of bytes checked during - BER estimation */ - ds3000_writereg(state, 0xf9, 0x04); - /* read BER estimation status */ - data = ds3000_readreg(state, 0xf8); - /* check if BER estimation is ready */ - if ((data & 0x10) == 0) { - /* this is the number of error bits, - to calculate the bit error rate - divide to 8388608 */ - *ber = (ds3000_readreg(state, 0xf7) << 8) | - ds3000_readreg(state, 0xf6); - /* start counting error bits */ - /* need to be set twice - otherwise it fails sometimes */ - data |= 0x10; - ds3000_writereg(state, 0xf8, data); - ds3000_writereg(state, 0xf8, data); - } else - /* used to indicate that BER estimation - is not ready, i.e. BER is unknown */ - *ber = 0xffffffff; - break; - case SYS_DVBS2: - /* read the number of LPDC decoded frames */ - lpdc_frames = (ds3000_readreg(state, 0xd7) << 16) | - (ds3000_readreg(state, 0xd6) << 8) | - ds3000_readreg(state, 0xd5); - /* read the number of packets with bad CRC */ - ber_reading = (ds3000_readreg(state, 0xf8) << 8) | - ds3000_readreg(state, 0xf7); - if (lpdc_frames > 750) { - /* clear LPDC frame counters */ - ds3000_writereg(state, 0xd1, 0x01); - /* clear bad packets counter */ - ds3000_writereg(state, 0xf9, 0x01); - /* enable bad packets counter */ - ds3000_writereg(state, 0xf9, 0x00); - /* enable LPDC frame counters */ - ds3000_writereg(state, 0xd1, 0x00); - *ber = ber_reading; - } else - /* used to indicate that BER estimation is not ready, - i.e. BER is unknown */ - *ber = 0xffffffff; - break; - default: - return 1; - } - - return 0; -} - -/* read TS2020 signal strength */ -static int ds3000_read_signal_strength(struct dvb_frontend *fe, - u16 *signal_strength) -{ - struct ds3000_state *state = fe->demodulator_priv; - u16 sig_reading, sig_strength; - u8 rfgain, bbgain; - - dprintk("%s()\n", __func__); - - rfgain = ds3000_tuner_readreg(state, 0x3d) & 0x1f; - bbgain = ds3000_tuner_readreg(state, 0x21) & 0x1f; - - if (rfgain > 15) - rfgain = 15; - if (bbgain > 13) - bbgain = 13; - - sig_reading = rfgain * 2 + bbgain * 3; - - sig_strength = 40 + (64 - sig_reading) * 50 / 64 ; - - /* cook the value to be suitable for szap-s2 human readable output */ - *signal_strength = sig_strength * 1000; - - dprintk("%s: raw / cooked = 0x%04x / 0x%04x\n", __func__, - sig_reading, *signal_strength); - - return 0; -} - -/* calculate DS3000 snr value in dB */ -static int ds3000_read_snr(struct dvb_frontend *fe, u16 *snr) -{ - struct ds3000_state *state = fe->demodulator_priv; - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - u8 snr_reading, snr_value; - u32 dvbs2_signal_reading, dvbs2_noise_reading, tmp; - static const u16 dvbs_snr_tab[] = { /* 20 x Table (rounded up) */ - 0x0000, 0x1b13, 0x2aea, 0x3627, 0x3ede, 0x45fe, 0x4c03, - 0x513a, 0x55d4, 0x59f2, 0x5dab, 0x6111, 0x6431, 0x6717, - 0x69c9, 0x6c4e, 0x6eac, 0x70e8, 0x7304, 0x7505 - }; - static const u16 dvbs2_snr_tab[] = { /* 80 x Table (rounded up) */ - 0x0000, 0x0bc2, 0x12a3, 0x1785, 0x1b4e, 0x1e65, 0x2103, - 0x2347, 0x2546, 0x2710, 0x28ae, 0x2a28, 0x2b83, 0x2cc5, - 0x2df1, 0x2f09, 0x3010, 0x3109, 0x31f4, 0x32d2, 0x33a6, - 0x3470, 0x3531, 0x35ea, 0x369b, 0x3746, 0x37ea, 0x3888, - 0x3920, 0x39b3, 0x3a42, 0x3acc, 0x3b51, 0x3bd3, 0x3c51, - 0x3ccb, 0x3d42, 0x3db6, 0x3e27, 0x3e95, 0x3f00, 0x3f68, - 0x3fcf, 0x4033, 0x4094, 0x40f4, 0x4151, 0x41ac, 0x4206, - 0x425e, 0x42b4, 0x4308, 0x435b, 0x43ac, 0x43fc, 0x444a, - 0x4497, 0x44e2, 0x452d, 0x4576, 0x45bd, 0x4604, 0x4649, - 0x468e, 0x46d1, 0x4713, 0x4755, 0x4795, 0x47d4, 0x4813, - 0x4851, 0x488d, 0x48c9, 0x4904, 0x493f, 0x4978, 0x49b1, - 0x49e9, 0x4a20, 0x4a57 - }; - - dprintk("%s()\n", __func__); - - switch (c->delivery_system) { - case SYS_DVBS: - snr_reading = ds3000_readreg(state, 0xff); - snr_reading /= 8; - if (snr_reading == 0) - *snr = 0x0000; - else { - if (snr_reading > 20) - snr_reading = 20; - snr_value = dvbs_snr_tab[snr_reading - 1] * 10 / 23026; - /* cook the value to be suitable for szap-s2 - human readable output */ - *snr = snr_value * 8 * 655; - } - dprintk("%s: raw / cooked = 0x%02x / 0x%04x\n", __func__, - snr_reading, *snr); - break; - case SYS_DVBS2: - dvbs2_noise_reading = (ds3000_readreg(state, 0x8c) & 0x3f) + - (ds3000_readreg(state, 0x8d) << 4); - dvbs2_signal_reading = ds3000_readreg(state, 0x8e); - tmp = dvbs2_signal_reading * dvbs2_signal_reading >> 1; - if (tmp == 0) { - *snr = 0x0000; - return 0; - } - if (dvbs2_noise_reading == 0) { - snr_value = 0x0013; - /* cook the value to be suitable for szap-s2 - human readable output */ - *snr = 0xffff; - return 0; - } - if (tmp > dvbs2_noise_reading) { - snr_reading = tmp / dvbs2_noise_reading; - if (snr_reading > 80) - snr_reading = 80; - snr_value = dvbs2_snr_tab[snr_reading - 1] / 1000; - /* cook the value to be suitable for szap-s2 - human readable output */ - *snr = snr_value * 5 * 655; - } else { - snr_reading = dvbs2_noise_reading / tmp; - if (snr_reading > 80) - snr_reading = 80; - *snr = -(dvbs2_snr_tab[snr_reading] / 1000); - } - dprintk("%s: raw / cooked = 0x%02x / 0x%04x\n", __func__, - snr_reading, *snr); - break; - default: - return 1; - } - - return 0; -} - -/* read DS3000 uncorrected blocks */ -static int ds3000_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) -{ - struct ds3000_state *state = fe->demodulator_priv; - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - u8 data; - u16 _ucblocks; - - dprintk("%s()\n", __func__); - - switch (c->delivery_system) { - case SYS_DVBS: - *ucblocks = (ds3000_readreg(state, 0xf5) << 8) | - ds3000_readreg(state, 0xf4); - data = ds3000_readreg(state, 0xf8); - /* clear packet counters */ - data &= ~0x20; - ds3000_writereg(state, 0xf8, data); - /* enable packet counters */ - data |= 0x20; - ds3000_writereg(state, 0xf8, data); - break; - case SYS_DVBS2: - _ucblocks = (ds3000_readreg(state, 0xe2) << 8) | - ds3000_readreg(state, 0xe1); - if (_ucblocks > state->prevUCBS2) - *ucblocks = _ucblocks - state->prevUCBS2; - else - *ucblocks = state->prevUCBS2 - _ucblocks; - state->prevUCBS2 = _ucblocks; - break; - default: - return 1; - } - - return 0; -} - -static int ds3000_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone) -{ - struct ds3000_state *state = fe->demodulator_priv; - u8 data; - - dprintk("%s(%d)\n", __func__, tone); - if ((tone != SEC_TONE_ON) && (tone != SEC_TONE_OFF)) { - printk(KERN_ERR "%s: Invalid, tone=%d\n", __func__, tone); - return -EINVAL; - } - - data = ds3000_readreg(state, 0xa2); - data &= ~0xc0; - ds3000_writereg(state, 0xa2, data); - - switch (tone) { - case SEC_TONE_ON: - dprintk("%s: setting tone on\n", __func__); - data = ds3000_readreg(state, 0xa1); - data &= ~0x43; - data |= 0x04; - ds3000_writereg(state, 0xa1, data); - break; - case SEC_TONE_OFF: - dprintk("%s: setting tone off\n", __func__); - data = ds3000_readreg(state, 0xa2); - data |= 0x80; - ds3000_writereg(state, 0xa2, data); - break; - } - - return 0; -} - -static int ds3000_send_diseqc_msg(struct dvb_frontend *fe, - struct dvb_diseqc_master_cmd *d) -{ - struct ds3000_state *state = fe->demodulator_priv; - int i; - u8 data; - - /* Dump DiSEqC message */ - dprintk("%s(", __func__); - for (i = 0 ; i < d->msg_len;) { - dprintk("0x%02x", d->msg[i]); - if (++i < d->msg_len) - dprintk(", "); - } - - /* enable DiSEqC message send pin */ - data = ds3000_readreg(state, 0xa2); - data &= ~0xc0; - ds3000_writereg(state, 0xa2, data); - - /* DiSEqC message */ - for (i = 0; i < d->msg_len; i++) - ds3000_writereg(state, 0xa3 + i, d->msg[i]); - - data = ds3000_readreg(state, 0xa1); - /* clear DiSEqC message length and status, - enable DiSEqC message send */ - data &= ~0xf8; - /* set DiSEqC mode, modulation active during 33 pulses, - set DiSEqC message length */ - data |= ((d->msg_len - 1) << 3) | 0x07; - ds3000_writereg(state, 0xa1, data); - - /* wait up to 150ms for DiSEqC transmission to complete */ - for (i = 0; i < 15; i++) { - data = ds3000_readreg(state, 0xa1); - if ((data & 0x40) == 0) - break; - msleep(10); - } - - /* DiSEqC timeout after 150ms */ - if (i == 15) { - data = ds3000_readreg(state, 0xa1); - data &= ~0x80; - data |= 0x40; - ds3000_writereg(state, 0xa1, data); - - data = ds3000_readreg(state, 0xa2); - data &= ~0xc0; - data |= 0x80; - ds3000_writereg(state, 0xa2, data); - - return 1; - } - - data = ds3000_readreg(state, 0xa2); - data &= ~0xc0; - data |= 0x80; - ds3000_writereg(state, 0xa2, data); - - return 0; -} - -/* Send DiSEqC burst */ -static int ds3000_diseqc_send_burst(struct dvb_frontend *fe, - fe_sec_mini_cmd_t burst) -{ - struct ds3000_state *state = fe->demodulator_priv; - int i; - u8 data; - - dprintk("%s()\n", __func__); - - data = ds3000_readreg(state, 0xa2); - data &= ~0xc0; - ds3000_writereg(state, 0xa2, data); - - /* DiSEqC burst */ - if (burst == SEC_MINI_A) - /* Unmodulated tone burst */ - ds3000_writereg(state, 0xa1, 0x02); - else if (burst == SEC_MINI_B) - /* Modulated tone burst */ - ds3000_writereg(state, 0xa1, 0x01); - else - return -EINVAL; - - msleep(13); - for (i = 0; i < 5; i++) { - data = ds3000_readreg(state, 0xa1); - if ((data & 0x40) == 0) - break; - msleep(1); - } - - if (i == 5) { - data = ds3000_readreg(state, 0xa1); - data &= ~0x80; - data |= 0x40; - ds3000_writereg(state, 0xa1, data); - - data = ds3000_readreg(state, 0xa2); - data &= ~0xc0; - data |= 0x80; - ds3000_writereg(state, 0xa2, data); - - return 1; - } - - data = ds3000_readreg(state, 0xa2); - data &= ~0xc0; - data |= 0x80; - ds3000_writereg(state, 0xa2, data); - - return 0; -} - -static void ds3000_release(struct dvb_frontend *fe) -{ - struct ds3000_state *state = fe->demodulator_priv; - dprintk("%s\n", __func__); - kfree(state); -} - -static struct dvb_frontend_ops ds3000_ops; - -struct dvb_frontend *ds3000_attach(const struct ds3000_config *config, - struct i2c_adapter *i2c) -{ - struct ds3000_state *state = NULL; - int ret; - - dprintk("%s\n", __func__); - - /* allocate memory for the internal state */ - state = kzalloc(sizeof(struct ds3000_state), GFP_KERNEL); - if (state == NULL) { - printk(KERN_ERR "Unable to kmalloc\n"); - goto error2; - } - - state->config = config; - state->i2c = i2c; - state->prevUCBS2 = 0; - - /* check if the demod is present */ - ret = ds3000_readreg(state, 0x00) & 0xfe; - if (ret != 0xe0) { - printk(KERN_ERR "Invalid probe, probably not a DS3000\n"); - goto error3; - } - - printk(KERN_INFO "DS3000 chip version: %d.%d attached.\n", - ds3000_readreg(state, 0x02), - ds3000_readreg(state, 0x01)); - - memcpy(&state->frontend.ops, &ds3000_ops, - sizeof(struct dvb_frontend_ops)); - state->frontend.demodulator_priv = state; - return &state->frontend; - -error3: - kfree(state); -error2: - return NULL; -} -EXPORT_SYMBOL(ds3000_attach); - -static int ds3000_set_carrier_offset(struct dvb_frontend *fe, - s32 carrier_offset_khz) -{ - struct ds3000_state *state = fe->demodulator_priv; - s32 tmp; - - tmp = carrier_offset_khz; - tmp *= 65536; - tmp = (2 * tmp + DS3000_SAMPLE_RATE) / (2 * DS3000_SAMPLE_RATE); - - if (tmp < 0) - tmp += 65536; - - ds3000_writereg(state, 0x5f, tmp >> 8); - ds3000_writereg(state, 0x5e, tmp & 0xff); - - return 0; -} - -static int ds3000_set_frontend(struct dvb_frontend *fe) -{ - struct ds3000_state *state = fe->demodulator_priv; - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - - int i; - fe_status_t status; - u8 mlpf, mlpf_new, mlpf_max, mlpf_min, nlpf, div4; - s32 offset_khz; - u16 value, ndiv; - u32 f3db; - - dprintk("%s() ", __func__); - - if (state->config->set_ts_params) - state->config->set_ts_params(fe, 0); - /* Tune */ - /* unknown */ - ds3000_tuner_writereg(state, 0x07, 0x02); - ds3000_tuner_writereg(state, 0x10, 0x00); - ds3000_tuner_writereg(state, 0x60, 0x79); - ds3000_tuner_writereg(state, 0x08, 0x01); - ds3000_tuner_writereg(state, 0x00, 0x01); - div4 = 0; - - /* calculate and set freq divider */ - if (c->frequency < 1146000) { - ds3000_tuner_writereg(state, 0x10, 0x11); - div4 = 1; - ndiv = ((c->frequency * (6 + 8) * 4) + - (DS3000_XTAL_FREQ / 2)) / - DS3000_XTAL_FREQ - 1024; - } else { - ds3000_tuner_writereg(state, 0x10, 0x01); - ndiv = ((c->frequency * (6 + 8) * 2) + - (DS3000_XTAL_FREQ / 2)) / - DS3000_XTAL_FREQ - 1024; - } - - ds3000_tuner_writereg(state, 0x01, (ndiv & 0x0f00) >> 8); - ds3000_tuner_writereg(state, 0x02, ndiv & 0x00ff); - - /* set pll */ - ds3000_tuner_writereg(state, 0x03, 0x06); - ds3000_tuner_writereg(state, 0x51, 0x0f); - ds3000_tuner_writereg(state, 0x51, 0x1f); - ds3000_tuner_writereg(state, 0x50, 0x10); - ds3000_tuner_writereg(state, 0x50, 0x00); - msleep(5); - - /* unknown */ - ds3000_tuner_writereg(state, 0x51, 0x17); - ds3000_tuner_writereg(state, 0x51, 0x1f); - ds3000_tuner_writereg(state, 0x50, 0x08); - ds3000_tuner_writereg(state, 0x50, 0x00); - msleep(5); - - value = ds3000_tuner_readreg(state, 0x3d); - value &= 0x0f; - if ((value > 4) && (value < 15)) { - value -= 3; - if (value < 4) - value = 4; - value = ((value << 3) | 0x01) & 0x79; - } - - ds3000_tuner_writereg(state, 0x60, value); - ds3000_tuner_writereg(state, 0x51, 0x17); - ds3000_tuner_writereg(state, 0x51, 0x1f); - ds3000_tuner_writereg(state, 0x50, 0x08); - ds3000_tuner_writereg(state, 0x50, 0x00); - - /* set low-pass filter period */ - ds3000_tuner_writereg(state, 0x04, 0x2e); - ds3000_tuner_writereg(state, 0x51, 0x1b); - ds3000_tuner_writereg(state, 0x51, 0x1f); - ds3000_tuner_writereg(state, 0x50, 0x04); - ds3000_tuner_writereg(state, 0x50, 0x00); - msleep(5); - - f3db = ((c->symbol_rate / 1000) << 2) / 5 + 2000; - if ((c->symbol_rate / 1000) < 5000) - f3db += 3000; - if (f3db < 7000) - f3db = 7000; - if (f3db > 40000) - f3db = 40000; - - /* set low-pass filter baseband */ - value = ds3000_tuner_readreg(state, 0x26); - mlpf = 0x2e * 207 / ((value << 1) + 151); - mlpf_max = mlpf * 135 / 100; - mlpf_min = mlpf * 78 / 100; - if (mlpf_max > 63) - mlpf_max = 63; - - /* rounded to the closest integer */ - nlpf = ((mlpf * f3db * 1000) + (2766 * DS3000_XTAL_FREQ / 2)) - / (2766 * DS3000_XTAL_FREQ); - if (nlpf > 23) - nlpf = 23; - if (nlpf < 1) - nlpf = 1; - - /* rounded to the closest integer */ - mlpf_new = ((DS3000_XTAL_FREQ * nlpf * 2766) + - (1000 * f3db / 2)) / (1000 * f3db); - - if (mlpf_new < mlpf_min) { - nlpf++; - mlpf_new = ((DS3000_XTAL_FREQ * nlpf * 2766) + - (1000 * f3db / 2)) / (1000 * f3db); - } - - if (mlpf_new > mlpf_max) - mlpf_new = mlpf_max; - - ds3000_tuner_writereg(state, 0x04, mlpf_new); - ds3000_tuner_writereg(state, 0x06, nlpf); - ds3000_tuner_writereg(state, 0x51, 0x1b); - ds3000_tuner_writereg(state, 0x51, 0x1f); - ds3000_tuner_writereg(state, 0x50, 0x04); - ds3000_tuner_writereg(state, 0x50, 0x00); - msleep(5); - - /* unknown */ - ds3000_tuner_writereg(state, 0x51, 0x1e); - ds3000_tuner_writereg(state, 0x51, 0x1f); - ds3000_tuner_writereg(state, 0x50, 0x01); - ds3000_tuner_writereg(state, 0x50, 0x00); - msleep(60); - - offset_khz = (ndiv - ndiv % 2 + 1024) * DS3000_XTAL_FREQ - / (6 + 8) / (div4 + 1) / 2 - c->frequency; - - /* ds3000 global reset */ - ds3000_writereg(state, 0x07, 0x80); - ds3000_writereg(state, 0x07, 0x00); - /* ds3000 build-in uC reset */ - ds3000_writereg(state, 0xb2, 0x01); - /* ds3000 software reset */ - ds3000_writereg(state, 0x00, 0x01); - - switch (c->delivery_system) { - case SYS_DVBS: - /* initialise the demod in DVB-S mode */ - for (i = 0; i < sizeof(ds3000_dvbs_init_tab); i += 2) - ds3000_writereg(state, - ds3000_dvbs_init_tab[i], - ds3000_dvbs_init_tab[i + 1]); - value = ds3000_readreg(state, 0xfe); - value &= 0xc0; - value |= 0x1b; - ds3000_writereg(state, 0xfe, value); - break; - case SYS_DVBS2: - /* initialise the demod in DVB-S2 mode */ - for (i = 0; i < sizeof(ds3000_dvbs2_init_tab); i += 2) - ds3000_writereg(state, - ds3000_dvbs2_init_tab[i], - ds3000_dvbs2_init_tab[i + 1]); - if (c->symbol_rate >= 30000000) - ds3000_writereg(state, 0xfe, 0x54); - else - ds3000_writereg(state, 0xfe, 0x98); - break; - default: - return 1; - } - - /* enable 27MHz clock output */ - ds3000_writereg(state, 0x29, 0x80); - /* enable ac coupling */ - ds3000_writereg(state, 0x25, 0x8a); - - /* enhance symbol rate performance */ - if ((c->symbol_rate / 1000) <= 5000) { - value = 29777 / (c->symbol_rate / 1000) + 1; - if (value % 2 != 0) - value++; - ds3000_writereg(state, 0xc3, 0x0d); - ds3000_writereg(state, 0xc8, value); - ds3000_writereg(state, 0xc4, 0x10); - ds3000_writereg(state, 0xc7, 0x0e); - } else if ((c->symbol_rate / 1000) <= 10000) { - value = 92166 / (c->symbol_rate / 1000) + 1; - if (value % 2 != 0) - value++; - ds3000_writereg(state, 0xc3, 0x07); - ds3000_writereg(state, 0xc8, value); - ds3000_writereg(state, 0xc4, 0x09); - ds3000_writereg(state, 0xc7, 0x12); - } else if ((c->symbol_rate / 1000) <= 20000) { - value = 64516 / (c->symbol_rate / 1000) + 1; - ds3000_writereg(state, 0xc3, value); - ds3000_writereg(state, 0xc8, 0x0e); - ds3000_writereg(state, 0xc4, 0x07); - ds3000_writereg(state, 0xc7, 0x18); - } else { - value = 129032 / (c->symbol_rate / 1000) + 1; - ds3000_writereg(state, 0xc3, value); - ds3000_writereg(state, 0xc8, 0x0a); - ds3000_writereg(state, 0xc4, 0x05); - ds3000_writereg(state, 0xc7, 0x24); - } - - /* normalized symbol rate rounded to the closest integer */ - value = (((c->symbol_rate / 1000) << 16) + - (DS3000_SAMPLE_RATE / 2)) / DS3000_SAMPLE_RATE; - ds3000_writereg(state, 0x61, value & 0x00ff); - ds3000_writereg(state, 0x62, (value & 0xff00) >> 8); - - /* co-channel interference cancellation disabled */ - ds3000_writereg(state, 0x56, 0x00); - - /* equalizer disabled */ - ds3000_writereg(state, 0x76, 0x00); - - /*ds3000_writereg(state, 0x08, 0x03); - ds3000_writereg(state, 0xfd, 0x22); - ds3000_writereg(state, 0x08, 0x07); - ds3000_writereg(state, 0xfd, 0x42); - ds3000_writereg(state, 0x08, 0x07);*/ - - if (state->config->ci_mode) { - switch (c->delivery_system) { - case SYS_DVBS: - default: - ds3000_writereg(state, 0xfd, 0x80); - break; - case SYS_DVBS2: - ds3000_writereg(state, 0xfd, 0x01); - break; - } - } - - /* ds3000 out of software reset */ - ds3000_writereg(state, 0x00, 0x00); - /* start ds3000 build-in uC */ - ds3000_writereg(state, 0xb2, 0x00); - - ds3000_set_carrier_offset(fe, offset_khz); - - for (i = 0; i < 30 ; i++) { - ds3000_read_status(fe, &status); - if (status & FE_HAS_LOCK) - break; - - msleep(10); - } - - return 0; -} - -static int ds3000_tune(struct dvb_frontend *fe, - bool re_tune, - unsigned int mode_flags, - unsigned int *delay, - fe_status_t *status) -{ - if (re_tune) { - int ret = ds3000_set_frontend(fe); - if (ret) - return ret; - } - - *delay = HZ / 5; - - return ds3000_read_status(fe, status); -} - -static enum dvbfe_algo ds3000_get_algo(struct dvb_frontend *fe) -{ - dprintk("%s()\n", __func__); - return DVBFE_ALGO_HW; -} - -/* - * Initialise or wake up device - * - * Power config will reset and load initial firmware if required - */ -static int ds3000_initfe(struct dvb_frontend *fe) -{ - struct ds3000_state *state = fe->demodulator_priv; - int ret; - - dprintk("%s()\n", __func__); - /* hard reset */ - ds3000_writereg(state, 0x08, 0x01 | ds3000_readreg(state, 0x08)); - msleep(1); - - /* TS2020 init */ - ds3000_tuner_writereg(state, 0x42, 0x73); - ds3000_tuner_writereg(state, 0x05, 0x01); - ds3000_tuner_writereg(state, 0x62, 0xf5); - /* Load the firmware if required */ - ret = ds3000_firmware_ondemand(fe); - if (ret != 0) { - printk(KERN_ERR "%s: Unable initialize firmware\n", __func__); - return ret; - } - - return 0; -} - -/* Put device to sleep */ -static int ds3000_sleep(struct dvb_frontend *fe) -{ - dprintk("%s()\n", __func__); - return 0; -} - -static struct dvb_frontend_ops ds3000_ops = { - .delsys = { SYS_DVBS, SYS_DVBS2}, - .info = { - .name = "Montage Technology DS3000/TS2020", - .frequency_min = 950000, - .frequency_max = 2150000, - .frequency_stepsize = 1011, /* kHz for QPSK frontends */ - .frequency_tolerance = 5000, - .symbol_rate_min = 1000000, - .symbol_rate_max = 45000000, - .caps = FE_CAN_INVERSION_AUTO | - FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | - FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | - FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | - FE_CAN_2G_MODULATION | - FE_CAN_QPSK | FE_CAN_RECOVER - }, - - .release = ds3000_release, - - .init = ds3000_initfe, - .sleep = ds3000_sleep, - .read_status = ds3000_read_status, - .read_ber = ds3000_read_ber, - .read_signal_strength = ds3000_read_signal_strength, - .read_snr = ds3000_read_snr, - .read_ucblocks = ds3000_read_ucblocks, - .set_voltage = ds3000_set_voltage, - .set_tone = ds3000_set_tone, - .diseqc_send_master_cmd = ds3000_send_diseqc_msg, - .diseqc_send_burst = ds3000_diseqc_send_burst, - .get_frontend_algo = ds3000_get_algo, - - .set_frontend = ds3000_set_frontend, - .tune = ds3000_tune, -}; - -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)"); - -MODULE_DESCRIPTION("DVB Frontend module for Montage Technology " - "DS3000/TS2020 hardware"); -MODULE_AUTHOR("Konstantin Dimitrov"); -MODULE_LICENSE("GPL"); |
