diff options
Diffstat (limited to 'drivers/media/dvb/frontends/itd1000.c')
| -rw-r--r-- | drivers/media/dvb/frontends/itd1000.c | 399 |
1 files changed, 0 insertions, 399 deletions
diff --git a/drivers/media/dvb/frontends/itd1000.c b/drivers/media/dvb/frontends/itd1000.c deleted file mode 100644 index 316457584fe..00000000000 --- a/drivers/media/dvb/frontends/itd1000.c +++ /dev/null @@ -1,399 +0,0 @@ -/* - * Driver for the Integrant ITD1000 "Zero-IF Tuner IC for Direct Broadcast Satellite" - * - * Copyright (c) 2007-8 Patrick Boettcher <pb@linuxtv.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 <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/delay.h> -#include <linux/dvb/frontend.h> -#include <linux/i2c.h> -#include <linux/slab.h> - -#include "dvb_frontend.h" - -#include "itd1000.h" -#include "itd1000_priv.h" - -static int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); - -#define itd_dbg(args...) do { \ - if (debug) { \ - printk(KERN_DEBUG "ITD1000: " args);\ - } \ -} while (0) - -#define itd_warn(args...) do { \ - printk(KERN_WARNING "ITD1000: " args); \ -} while (0) - -#define itd_info(args...) do { \ - printk(KERN_INFO "ITD1000: " args); \ -} while (0) - -/* don't write more than one byte with flexcop behind */ -static int itd1000_write_regs(struct itd1000_state *state, u8 reg, u8 v[], u8 len) -{ - u8 buf[1+len]; - struct i2c_msg msg = { - .addr = state->cfg->i2c_address, .flags = 0, .buf = buf, .len = len+1 - }; - buf[0] = reg; - memcpy(&buf[1], v, len); - - /* itd_dbg("wr %02x: %02x\n", reg, v[0]); */ - - if (i2c_transfer(state->i2c, &msg, 1) != 1) { - printk(KERN_WARNING "itd1000 I2C write failed\n"); - return -EREMOTEIO; - } - return 0; -} - -static int itd1000_read_reg(struct itd1000_state *state, u8 reg) -{ - u8 val; - struct i2c_msg msg[2] = { - { .addr = state->cfg->i2c_address, .flags = 0, .buf = ®, .len = 1 }, - { .addr = state->cfg->i2c_address, .flags = I2C_M_RD, .buf = &val, .len = 1 }, - }; - - /* ugly flexcop workaround */ - itd1000_write_regs(state, (reg - 1) & 0xff, &state->shadow[(reg - 1) & 0xff], 1); - - if (i2c_transfer(state->i2c, msg, 2) != 2) { - itd_warn("itd1000 I2C read failed\n"); - return -EREMOTEIO; - } - return val; -} - -static inline int itd1000_write_reg(struct itd1000_state *state, u8 r, u8 v) -{ - int ret = itd1000_write_regs(state, r, &v, 1); - state->shadow[r] = v; - return ret; -} - - -static struct { - u32 symbol_rate; - u8 pgaext : 4; /* PLLFH */ - u8 bbgvmin : 4; /* BBGVMIN */ -} itd1000_lpf_pga[] = { - { 0, 0x8, 0x3 }, - { 5200000, 0x8, 0x3 }, - { 12200000, 0x4, 0x3 }, - { 15400000, 0x2, 0x3 }, - { 19800000, 0x2, 0x3 }, - { 21500000, 0x2, 0x3 }, - { 24500000, 0x2, 0x3 }, - { 28400000, 0x2, 0x3 }, - { 33400000, 0x2, 0x3 }, - { 34400000, 0x1, 0x4 }, - { 34400000, 0x1, 0x4 }, - { 38400000, 0x1, 0x4 }, - { 38400000, 0x1, 0x4 }, - { 40400000, 0x1, 0x4 }, - { 45400000, 0x1, 0x4 }, -}; - -static void itd1000_set_lpf_bw(struct itd1000_state *state, u32 symbol_rate) -{ - u8 i; - u8 con1 = itd1000_read_reg(state, CON1) & 0xfd; - u8 pllfh = itd1000_read_reg(state, PLLFH) & 0x0f; - u8 bbgvmin = itd1000_read_reg(state, BBGVMIN) & 0xf0; - u8 bw = itd1000_read_reg(state, BW) & 0xf0; - - itd_dbg("symbol_rate = %d\n", symbol_rate); - - /* not sure what is that ? - starting to download the table */ - itd1000_write_reg(state, CON1, con1 | (1 << 1)); - - for (i = 0; i < ARRAY_SIZE(itd1000_lpf_pga); i++) - if (symbol_rate < itd1000_lpf_pga[i].symbol_rate) { - itd_dbg("symrate: index: %d pgaext: %x, bbgvmin: %x\n", i, itd1000_lpf_pga[i].pgaext, itd1000_lpf_pga[i].bbgvmin); - itd1000_write_reg(state, PLLFH, pllfh | (itd1000_lpf_pga[i].pgaext << 4)); - itd1000_write_reg(state, BBGVMIN, bbgvmin | (itd1000_lpf_pga[i].bbgvmin)); - itd1000_write_reg(state, BW, bw | (i & 0x0f)); - break; - } - - itd1000_write_reg(state, CON1, con1 | (0 << 1)); -} - -static struct { - u8 vcorg; - u32 fmax_rg; -} itd1000_vcorg[] = { - { 1, 920000 }, - { 2, 971000 }, - { 3, 1031000 }, - { 4, 1091000 }, - { 5, 1171000 }, - { 6, 1281000 }, - { 7, 1381000 }, - { 8, 500000 }, /* this is intentional. */ - { 9, 1451000 }, - { 10, 1531000 }, - { 11, 1631000 }, - { 12, 1741000 }, - { 13, 1891000 }, - { 14, 2071000 }, - { 15, 2250000 }, -}; - -static void itd1000_set_vco(struct itd1000_state *state, u32 freq_khz) -{ - u8 i; - u8 gvbb_i2c = itd1000_read_reg(state, GVBB_I2C) & 0xbf; - u8 vco_chp1_i2c = itd1000_read_reg(state, VCO_CHP1_I2C) & 0x0f; - u8 adcout; - - /* reserved bit again (reset ?) */ - itd1000_write_reg(state, GVBB_I2C, gvbb_i2c | (1 << 6)); - - for (i = 0; i < ARRAY_SIZE(itd1000_vcorg); i++) { - if (freq_khz < itd1000_vcorg[i].fmax_rg) { - itd1000_write_reg(state, VCO_CHP1_I2C, vco_chp1_i2c | (itd1000_vcorg[i].vcorg << 4)); - msleep(1); - - adcout = itd1000_read_reg(state, PLLLOCK) & 0x0f; - - itd_dbg("VCO: %dkHz: %d -> ADCOUT: %d %02x\n", freq_khz, itd1000_vcorg[i].vcorg, adcout, vco_chp1_i2c); - - if (adcout > 13) { - if (!(itd1000_vcorg[i].vcorg == 7 || itd1000_vcorg[i].vcorg == 15)) - itd1000_write_reg(state, VCO_CHP1_I2C, vco_chp1_i2c | ((itd1000_vcorg[i].vcorg + 1) << 4)); - } else if (adcout < 2) { - if (!(itd1000_vcorg[i].vcorg == 1 || itd1000_vcorg[i].vcorg == 9)) - itd1000_write_reg(state, VCO_CHP1_I2C, vco_chp1_i2c | ((itd1000_vcorg[i].vcorg - 1) << 4)); - } - break; - } - } -} - -static const struct { - u32 freq; - u8 values[10]; /* RFTR, RFST1 - RFST9 */ -} itd1000_fre_values[] = { - { 1075000, { 0x59, 0x1d, 0x1c, 0x17, 0x16, 0x0f, 0x0e, 0x0c, 0x0b, 0x0a } }, - { 1250000, { 0x89, 0x1e, 0x1d, 0x17, 0x15, 0x0f, 0x0e, 0x0c, 0x0b, 0x0a } }, - { 1450000, { 0x89, 0x1e, 0x1d, 0x17, 0x15, 0x0f, 0x0e, 0x0c, 0x0b, 0x0a } }, - { 1650000, { 0x69, 0x1e, 0x1d, 0x17, 0x15, 0x0f, 0x0e, 0x0c, 0x0b, 0x0a } }, - { 1750000, { 0x69, 0x1e, 0x17, 0x15, 0x14, 0x0f, 0x0e, 0x0c, 0x0b, 0x0a } }, - { 1850000, { 0x69, 0x1d, 0x17, 0x16, 0x14, 0x0f, 0x0e, 0x0d, 0x0b, 0x0a } }, - { 1900000, { 0x69, 0x1d, 0x17, 0x15, 0x14, 0x0f, 0x0e, 0x0d, 0x0b, 0x0a } }, - { 1950000, { 0x69, 0x1d, 0x17, 0x16, 0x14, 0x13, 0x0e, 0x0d, 0x0b, 0x0a } }, - { 2050000, { 0x69, 0x1e, 0x1d, 0x17, 0x16, 0x14, 0x13, 0x0e, 0x0b, 0x0a } }, - { 2150000, { 0x69, 0x1d, 0x1c, 0x17, 0x15, 0x14, 0x13, 0x0f, 0x0e, 0x0b } } -}; - - -#define FREF 16 - -static void itd1000_set_lo(struct itd1000_state *state, u32 freq_khz) -{ - int i, j; - u32 plln, pllf; - u64 tmp; - - plln = (freq_khz * 1000) / 2 / FREF; - - /* Compute the factional part times 1000 */ - tmp = plln % 1000000; - plln /= 1000000; - - tmp *= 1048576; - do_div(tmp, 1000000); - pllf = (u32) tmp; - - state->frequency = ((plln * 1000) + (pllf * 1000)/1048576) * 2*FREF; - itd_dbg("frequency: %dkHz (wanted) %dkHz (set), PLLF = %d, PLLN = %d\n", freq_khz, state->frequency, pllf, plln); - - itd1000_write_reg(state, PLLNH, 0x80); /* PLLNH */; - itd1000_write_reg(state, PLLNL, plln & 0xff); - itd1000_write_reg(state, PLLFH, (itd1000_read_reg(state, PLLFH) & 0xf0) | ((pllf >> 16) & 0x0f)); - itd1000_write_reg(state, PLLFM, (pllf >> 8) & 0xff); - itd1000_write_reg(state, PLLFL, (pllf >> 0) & 0xff); - - for (i = 0; i < ARRAY_SIZE(itd1000_fre_values); i++) { - if (freq_khz <= itd1000_fre_values[i].freq) { - itd_dbg("fre_values: %d\n", i); - itd1000_write_reg(state, RFTR, itd1000_fre_values[i].values[0]); - for (j = 0; j < 9; j++) - itd1000_write_reg(state, RFST1+j, itd1000_fre_values[i].values[j+1]); - break; - } - } - - itd1000_set_vco(state, freq_khz); -} - -static int itd1000_set_parameters(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - struct itd1000_state *state = fe->tuner_priv; - u8 pllcon1; - - itd1000_set_lo(state, c->frequency); - itd1000_set_lpf_bw(state, c->symbol_rate); - - pllcon1 = itd1000_read_reg(state, PLLCON1) & 0x7f; - itd1000_write_reg(state, PLLCON1, pllcon1 | (1 << 7)); - itd1000_write_reg(state, PLLCON1, pllcon1); - - return 0; -} - -static int itd1000_get_frequency(struct dvb_frontend *fe, u32 *frequency) -{ - struct itd1000_state *state = fe->tuner_priv; - *frequency = state->frequency; - return 0; -} - -static int itd1000_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) -{ - return 0; -} - -static u8 itd1000_init_tab[][2] = { - { PLLCON1, 0x65 }, /* Register does not change */ - { PLLNH, 0x80 }, /* Bits [7:6] do not change */ - { RESERVED_0X6D, 0x3b }, - { VCO_CHP2_I2C, 0x12 }, - { 0x72, 0xf9 }, /* No such regsister defined */ - { RESERVED_0X73, 0xff }, - { RESERVED_0X74, 0xb2 }, - { RESERVED_0X75, 0xc7 }, - { EXTGVBBRF, 0xf0 }, - { DIVAGCCK, 0x80 }, - { BBTR, 0xa0 }, - { RESERVED_0X7E, 0x4f }, - { 0x82, 0x88 }, /* No such regsister defined */ - { 0x83, 0x80 }, /* No such regsister defined */ - { 0x84, 0x80 }, /* No such regsister defined */ - { RESERVED_0X85, 0x74 }, - { RESERVED_0X86, 0xff }, - { RESERVED_0X88, 0x02 }, - { RESERVED_0X89, 0x16 }, - { RFST0, 0x1f }, - { RESERVED_0X94, 0x66 }, - { RESERVED_0X95, 0x66 }, - { RESERVED_0X96, 0x77 }, - { RESERVED_0X97, 0x99 }, - { RESERVED_0X98, 0xff }, - { RESERVED_0X99, 0xfc }, - { RESERVED_0X9A, 0xba }, - { RESERVED_0X9B, 0xaa }, -}; - -static u8 itd1000_reinit_tab[][2] = { - { VCO_CHP1_I2C, 0x8a }, - { BW, 0x87 }, - { GVBB_I2C, 0x03 }, - { BBGVMIN, 0x03 }, - { CON1, 0x2e }, -}; - - -static int itd1000_init(struct dvb_frontend *fe) -{ - struct itd1000_state *state = fe->tuner_priv; - int i; - - for (i = 0; i < ARRAY_SIZE(itd1000_init_tab); i++) - itd1000_write_reg(state, itd1000_init_tab[i][0], itd1000_init_tab[i][1]); - - for (i = 0; i < ARRAY_SIZE(itd1000_reinit_tab); i++) - itd1000_write_reg(state, itd1000_reinit_tab[i][0], itd1000_reinit_tab[i][1]); - - return 0; -} - -static int itd1000_sleep(struct dvb_frontend *fe) -{ - return 0; -} - -static int itd1000_release(struct dvb_frontend *fe) -{ - kfree(fe->tuner_priv); - fe->tuner_priv = NULL; - return 0; -} - -static const struct dvb_tuner_ops itd1000_tuner_ops = { - .info = { - .name = "Integrant ITD1000", - .frequency_min = 950000, - .frequency_max = 2150000, - .frequency_step = 125, /* kHz for QPSK frontends */ - }, - - .release = itd1000_release, - - .init = itd1000_init, - .sleep = itd1000_sleep, - - .set_params = itd1000_set_parameters, - .get_frequency = itd1000_get_frequency, - .get_bandwidth = itd1000_get_bandwidth -}; - - -struct dvb_frontend *itd1000_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct itd1000_config *cfg) -{ - struct itd1000_state *state = NULL; - u8 i = 0; - - state = kzalloc(sizeof(struct itd1000_state), GFP_KERNEL); - if (state == NULL) - return NULL; - - state->cfg = cfg; - state->i2c = i2c; - - i = itd1000_read_reg(state, 0); - if (i != 0) { - kfree(state); - return NULL; - } - itd_info("successfully identified (ID: %d)\n", i); - - memset(state->shadow, 0xff, sizeof(state->shadow)); - for (i = 0x65; i < 0x9c; i++) - state->shadow[i] = itd1000_read_reg(state, i); - - memcpy(&fe->ops.tuner_ops, &itd1000_tuner_ops, sizeof(struct dvb_tuner_ops)); - - fe->tuner_priv = state; - - return fe; -} -EXPORT_SYMBOL(itd1000_attach); - -MODULE_AUTHOR("Patrick Boettcher <pb@linuxtv.org>"); -MODULE_DESCRIPTION("Integrant ITD1000 driver"); -MODULE_LICENSE("GPL"); |