--- /dev/null
+/*
+ Fujitsu MB86A16 DVB-S/DSS DC Receiver driver
+
+ Copyright (C) Manu Abraham (abraham.manu@gmail.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/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/slab.h>
+
+#include "dvb_frontend.h"
+#include "mb86a16.h"
+#include "mb86a16_priv.h"
+
+static unsigned int verbose = 5;
+module_param(verbose, int, 0644);
+
+#define ABS(x) ((x) < 0 ? (-x) : (x))
+
+struct mb86a16_state {
+ struct i2c_adapter *i2c_adap;
+ const struct mb86a16_config *config;
+ struct dvb_frontend frontend;
+
+ /* tuning parameters */
+ int frequency;
+ int srate;
+
+ /* Internal stuff */
+ int master_clk;
+ int deci;
+ int csel;
+ int rsel;
+};
+
+#define MB86A16_ERROR 0
+#define MB86A16_NOTICE 1
+#define MB86A16_INFO 2
+#define MB86A16_DEBUG 3
+
+#define dprintk(x, y, z, format, arg...) do { \
+ if (z) { \
+ if ((x > MB86A16_ERROR) && (x > y)) \
+ printk(KERN_ERR "%s: " format "\n", __func__, ##arg); \
+ else if ((x > MB86A16_NOTICE) && (x > y)) \
+ printk(KERN_NOTICE "%s: " format "\n", __func__, ##arg); \
+ else if ((x > MB86A16_INFO) && (x > y)) \
+ printk(KERN_INFO "%s: " format "\n", __func__, ##arg); \
+ else if ((x > MB86A16_DEBUG) && (x > y)) \
+ printk(KERN_DEBUG "%s: " format "\n", __func__, ##arg); \
+ } else { \
+ if (x > y) \
+ printk(format, ##arg); \
+ } \
+} while (0)
+
+#define TRACE_IN dprintk(verbose, MB86A16_DEBUG, 1, "-->()")
+#define TRACE_OUT dprintk(verbose, MB86A16_DEBUG, 1, "()-->")
+
+static int mb86a16_write(struct mb86a16_state *state, u8 reg, u8 val)
+{
+ int ret;
+ u8 buf[] = { reg, val };
+
+ struct i2c_msg msg = {
+ .addr = state->config->demod_address,
+ .flags = 0,
+ .buf = buf,
+ .len = 2
+ };
+
+ dprintk(verbose, MB86A16_DEBUG, 1,
+ "writing to [0x%02x],Reg[0x%02x],Data[0x%02x]",
+ state->config->demod_address, buf[0], buf[1]);
+
+ ret = i2c_transfer(state->i2c_adap, &msg, 1);
+
+ return (ret != 1) ? -EREMOTEIO : 0;
+}
+
+static int mb86a16_read(struct mb86a16_state *state, u8 reg, u8 *val)
+{
+ 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_adap, msg, 2);
+ if (ret != 2) {
+ dprintk(verbose, MB86A16_ERROR, 1, "read error(reg=0x%02x, ret=%i)",
+ reg, ret);
+
+ if (ret < 0)
+ return ret;
+ return -EREMOTEIO;
+ }
+ *val = b1[0];
+
+ return ret;
+}
+
+static int CNTM_set(struct mb86a16_state *state,
+ unsigned char timint1,
+ unsigned char timint2,
+ unsigned char cnext)
+{
+ unsigned char val;
+
+ val = (timint1 << 4) | (timint2 << 2) | cnext;
+ if (mb86a16_write(state, MB86A16_CNTMR, val) < 0)
+ goto err;
+
+ return 0;
+
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int smrt_set(struct mb86a16_state *state, int rate)
+{
+ int tmp ;
+ int m ;
+ unsigned char STOFS0, STOFS1;
+
+ m = 1 << state->deci;
+ tmp = (8192 * state->master_clk - 2 * m * rate * 8192 + state->master_clk / 2) / state->master_clk;
+
+ STOFS0 = tmp & 0x0ff;
+ STOFS1 = (tmp & 0xf00) >> 8;
+
+ if (mb86a16_write(state, MB86A16_SRATE1, (state->deci << 2) |
+ (state->csel << 1) |
+ state->rsel) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_SRATE2, STOFS0) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_SRATE3, STOFS1) < 0)
+ goto err;
+
+ return 0;
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -1;
+}
+
+static int srst(struct mb86a16_state *state)
+{
+ if (mb86a16_write(state, MB86A16_RESET, 0x04) < 0)
+ goto err;
+
+ return 0;
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+
+}
+
+static int afcex_data_set(struct mb86a16_state *state,
+ unsigned char AFCEX_L,
+ unsigned char AFCEX_H)
+{
+ if (mb86a16_write(state, MB86A16_AFCEXL, AFCEX_L) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_AFCEXH, AFCEX_H) < 0)
+ goto err;
+
+ return 0;
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+
+ return -1;
+}
+
+static int afcofs_data_set(struct mb86a16_state *state,
+ unsigned char AFCEX_L,
+ unsigned char AFCEX_H)
+{
+ if (mb86a16_write(state, 0x58, AFCEX_L) < 0)
+ goto err;
+ if (mb86a16_write(state, 0x59, AFCEX_H) < 0)
+ goto err;
+
+ return 0;
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int stlp_set(struct mb86a16_state *state,
+ unsigned char STRAS,
+ unsigned char STRBS)
+{
+ if (mb86a16_write(state, MB86A16_STRFILTCOEF1, (STRBS << 3) | (STRAS)) < 0)
+ goto err;
+
+ return 0;
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int Vi_set(struct mb86a16_state *state, unsigned char ETH, unsigned char VIA)
+{
+ if (mb86a16_write(state, MB86A16_VISET2, 0x04) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_VISET3, 0xf5) < 0)
+ goto err;
+
+ return 0;
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int initial_set(struct mb86a16_state *state)
+{
+ if (stlp_set(state, 5, 7))
+ goto err;
+
+ udelay(100);
+ if (afcex_data_set(state, 0, 0))
+ goto err;
+
+ udelay(100);
+ if (afcofs_data_set(state, 0, 0))
+ goto err;
+
+ udelay(100);
+ if (mb86a16_write(state, MB86A16_CRLFILTCOEF1, 0x16) < 0)
+ goto err;
+ if (mb86a16_write(state, 0x2f, 0x21) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_VIMAG, 0x38) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_FAGCS1, 0x00) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_FAGCS2, 0x1c) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_FAGCS3, 0x20) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_FAGCS4, 0x1e) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_FAGCS5, 0x23) < 0)
+ goto err;
+ if (mb86a16_write(state, 0x54, 0xff) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_TSOUT, 0x00) < 0)
+ goto err;
+
+ return 0;
+
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int S01T_set(struct mb86a16_state *state,
+ unsigned char s1t,
+ unsigned s0t)
+{
+ if (mb86a16_write(state, 0x33, (s1t << 3) | s0t) < 0)
+ goto err;
+
+ return 0;
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+
+static int EN_set(struct mb86a16_state *state,
+ int cren,
+ int afcen)
+{
+ unsigned char val;
+
+ val = 0x7a | (cren << 7) | (afcen << 2);
+ if (mb86a16_write(state, 0x49, val) < 0)
+ goto err;
+
+ return 0;
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int AFCEXEN_set(struct mb86a16_state *state,
+ int afcexen,
+ int smrt)
+{
+ unsigned char AFCA ;
+
+ if (smrt > 18875)
+ AFCA = 4;
+ else if (smrt > 9375)
+ AFCA = 3;
+ else if (smrt > 2250)
+ AFCA = 2;
+ else
+ AFCA = 1;
+
+ if (mb86a16_write(state, 0x2a, 0x02 | (afcexen << 5) | (AFCA << 2)) < 0)
+ goto err;
+
+ return 0;
+
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int DAGC_data_set(struct mb86a16_state *state,
+ unsigned char DAGCA,
+ unsigned char DAGCW)
+{
+ if (mb86a16_write(state, 0x2d, (DAGCA << 3) | DAGCW) < 0)
+ goto err;
+
+ return 0;
+
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static void smrt_info_get(struct mb86a16_state *state, int rate)
+{
+ if (rate >= 37501) {
+ state->deci = 0; state->csel = 0; state->rsel = 0;
+ } else if (rate >= 30001) {
+ state->deci = 0; state->csel = 0; state->rsel = 1;
+ } else if (rate >= 26251) {
+ state->deci = 0; state->csel = 1; state->rsel = 0;
+ } else if (rate >= 22501) {
+ state->deci = 0; state->csel = 1; state->rsel = 1;
+ } else if (rate >= 18751) {
+ state->deci = 1; state->csel = 0; state->rsel = 0;
+ } else if (rate >= 15001) {
+ state->deci = 1; state->csel = 0; state->rsel = 1;
+ } else if (rate >= 13126) {
+ state->deci = 1; state->csel = 1; state->rsel = 0;
+ } else if (rate >= 11251) {
+ state->deci = 1; state->csel = 1; state->rsel = 1;
+ } else if (rate >= 9376) {
+ state->deci = 2; state->csel = 0; state->rsel = 0;
+ } else if (rate >= 7501) {
+ state->deci = 2; state->csel = 0; state->rsel = 1;
+ } else if (rate >= 6563) {
+ state->deci = 2; state->csel = 1; state->rsel = 0;
+ } else if (rate >= 5626) {
+ state->deci = 2; state->csel = 1; state->rsel = 1;
+ } else if (rate >= 4688) {
+ state->deci = 3; state->csel = 0; state->rsel = 0;
+ } else if (rate >= 3751) {
+ state->deci = 3; state->csel = 0; state->rsel = 1;
+ } else if (rate >= 3282) {
+ state->deci = 3; state->csel = 1; state->rsel = 0;
+ } else if (rate >= 2814) {
+ state->deci = 3; state->csel = 1; state->rsel = 1;
+ } else if (rate >= 2344) {
+ state->deci = 4; state->csel = 0; state->rsel = 0;
+ } else if (rate >= 1876) {
+ state->deci = 4; state->csel = 0; state->rsel = 1;
+ } else if (rate >= 1641) {
+ state->deci = 4; state->csel = 1; state->rsel = 0;
+ } else if (rate >= 1407) {
+ state->deci = 4; state->csel = 1; state->rsel = 1;
+ } else if (rate >= 1172) {
+ state->deci = 5; state->csel = 0; state->rsel = 0;
+ } else if (rate >= 939) {
+ state->deci = 5; state->csel = 0; state->rsel = 1;
+ } else if (rate >= 821) {
+ state->deci = 5; state->csel = 1; state->rsel = 0;
+ } else {
+ state->deci = 5; state->csel = 1; state->rsel = 1;
+ }
+
+ if (state->csel == 0)
+ state->master_clk = 92000;
+ else
+ state->master_clk = 61333;
+
+}
+
+static int signal_det(struct mb86a16_state *state,
+ int smrt,
+ unsigned char *SIG)
+{
+
+ int ret ;
+ int smrtd ;
+ int wait_sym ;
+
+ u32 wait_t;
+ unsigned char S[3] ;
+ int i ;
+
+ if (*SIG > 45) {
+ if (CNTM_set(state, 2, 1, 2) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "CNTM set Error");
+ return -1;
+ }
+ wait_sym = 40000;
+ } else {
+ if (CNTM_set(state, 3, 1, 2) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "CNTM set Error");
+ return -1;
+ }
+ wait_sym = 80000;
+ }
+ for (i = 0; i < 3; i++) {
+ if (i == 0)
+ smrtd = smrt * 98 / 100;
+ else if (i == 1)
+ smrtd = smrt;
+ else
+ smrtd = smrt * 102 / 100;
+ smrt_info_get(state, smrtd);
+ smrt_set(state, smrtd);
+ srst(state);
+ wait_t = (wait_sym + 99 * smrtd / 100) / smrtd;
+ if (wait_t == 0)
+ wait_t = 1;
+ msleep_interruptible(10);
+ if (mb86a16_read(state, 0x37, &(S[i])) != 2) {
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+ }
+ }
+ if ((S[1] > S[0] * 112 / 100) &&
+ (S[1] > S[2] * 112 / 100)) {
+
+ ret = 1;
+ } else {
+ ret = 0;
+ }
+ *SIG = S[1];
+
+ if (CNTM_set(state, 0, 1, 2) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "CNTM set Error");
+ return -1;
+ }
+
+ return ret;
+}
+
+static int rf_val_set(struct mb86a16_state *state,
+ int f,
+ int smrt,
+ unsigned char R)
+{
+ unsigned char C, F, B;
+ int M;
+ unsigned char rf_val[5];
+ int ack = -1;
+
+ if (smrt > 37750)
+ C = 1;
+ else if (smrt > 18875)
+ C = 2;
+ else if (smrt > 5500)
+ C = 3;
+ else
+ C = 4;
+
+ if (smrt > 30500)
+ F = 3;
+ else if (smrt > 9375)
+ F = 1;
+ else if (smrt > 4625)
+ F = 0;
+ else
+ F = 2;
+
+ if (f < 1060)
+ B = 0;
+ else if (f < 1175)
+ B = 1;
+ else if (f < 1305)
+ B = 2;
+ else if (f < 1435)
+ B = 3;
+ else if (f < 1570)
+ B = 4;
+ else if (f < 1715)
+ B = 5;
+ else if (f < 1845)
+ B = 6;
+ else if (f < 1980)
+ B = 7;
+ else if (f < 2080)
+ B = 8;
+ else
+ B = 9;
+
+ M = f * (1 << R) / 2;
+
+ rf_val[0] = 0x01 | (C << 3) | (F << 1);
+ rf_val[1] = (R << 5) | ((M & 0x1f000) >> 12);
+ rf_val[2] = (M & 0x00ff0) >> 4;
+ rf_val[3] = ((M & 0x0000f) << 4) | B;
+
+ /* Frequency Set */
+ if (mb86a16_write(state, 0x21, rf_val[0]) < 0)
+ ack = 0;
+ if (mb86a16_write(state, 0x22, rf_val[1]) < 0)
+ ack = 0;
+ if (mb86a16_write(state, 0x23, rf_val[2]) < 0)
+ ack = 0;
+ if (mb86a16_write(state, 0x24, rf_val[3]) < 0)
+ ack = 0;
+ if (mb86a16_write(state, 0x25, 0x01) < 0)
+ ack = 0;
+ if (ack == 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "RF Setup - I2C transfer error");
+ return -EREMOTEIO;
+ }
+
+ return 0;
+}
+
+static int afcerr_chk(struct mb86a16_state *state)
+{
+ unsigned char AFCM_L, AFCM_H ;
+ int AFCM ;
+ int afcm, afcerr ;
+
+ if (mb86a16_read(state, 0x0e, &AFCM_L) != 2)
+ goto err;
+ if (mb86a16_read(state, 0x0f, &AFCM_H) != 2)
+ goto err;
+
+ AFCM = (AFCM_H << 8) + AFCM_L;
+
+ if (AFCM > 2048)
+ afcm = AFCM - 4096;
+ else
+ afcm = AFCM;
+ afcerr = afcm * state->master_clk / 8192;
+
+ return afcerr;
+
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int dagcm_val_get(struct mb86a16_state *state)
+{
+ int DAGCM;
+ unsigned char DAGCM_H, DAGCM_L;
+
+ if (mb86a16_read(state, 0x45, &DAGCM_L) != 2)
+ goto err;
+ if (mb86a16_read(state, 0x46, &DAGCM_H) != 2)
+ goto err;
+
+ DAGCM = (DAGCM_H << 8) + DAGCM_L;
+
+ return DAGCM;
+
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int mb86a16_read_status(struct dvb_frontend *fe, fe_status_t *status)
+{
+ u8 stat, stat2;
+ struct mb86a16_state *state = fe->demodulator_priv;
+
+ *status = 0;
+
+ if (mb86a16_read(state, MB86A16_SIG1, &stat) != 2)
+ goto err;
+ if (mb86a16_read(state, MB86A16_SIG2, &stat2) != 2)
+ goto err;
+ if ((stat > 25) && (stat2 > 25))
+ *status |= FE_HAS_SIGNAL;
+ if ((stat > 45) && (stat2 > 45))
+ *status |= FE_HAS_CARRIER;
+
+ if (mb86a16_read(state, MB86A16_STATUS, &stat) != 2)
+ goto err;
+
+ if (stat & 0x01)
+ *status |= FE_HAS_SYNC;
+ if (stat & 0x01)
+ *status |= FE_HAS_VITERBI;
+
+ if (mb86a16_read(state, MB86A16_FRAMESYNC, &stat) != 2)
+ goto err;
+
+ if ((stat & 0x0f) && (*status & FE_HAS_VITERBI))
+ *status |= FE_HAS_LOCK;
+
+ return 0;
+
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int sync_chk(struct mb86a16_state *state,
+ unsigned char *VIRM)
+{
+ unsigned char val;
+ int sync;
+
+ if (mb86a16_read(state, 0x0d, &val) != 2)
+ goto err;
+
+ dprintk(verbose, MB86A16_INFO, 1, "Status = %02x,", val);
+ sync = val & 0x01;
+ *VIRM = (val & 0x1c) >> 2;
+
+ return sync;
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+
+}
+
+static int freqerr_chk(struct mb86a16_state *state,
+ int fTP,
+ int smrt,
+ int unit)
+{
+ unsigned char CRM, AFCML, AFCMH;
+ unsigned char temp1, temp2, temp3;
+ int crm, afcm, AFCM;
+ int crrerr, afcerr; /* kHz */
+ int frqerr; /* MHz */
+ int afcen, afcexen = 0;
+ int R, M, fOSC, fOSC_OFS;
+
+ if (mb86a16_read(state, 0x43, &CRM) != 2)
+ goto err;
+
+ if (CRM > 127)
+ crm = CRM - 256;
+ else
+ crm = CRM;
+
+ crrerr = smrt * crm / 256;
+ if (mb86a16_read(state, 0x49, &temp1) != 2)
+ goto err;
+
+ afcen = (temp1 & 0x04) >> 2;
+ if (afcen == 0) {
+ if (mb86a16_read(state, 0x2a, &temp1) != 2)
+ goto err;
+ afcexen = (temp1 & 0x20) >> 5;
+ }
+
+ if (afcen == 1) {
+ if (mb86a16_read(state, 0x0e, &AFCML) != 2)
+ goto err;
+ if (mb86a16_read(state, 0x0f, &AFCMH) != 2)
+ goto err;
+ } else if (afcexen == 1) {
+ if (mb86a16_read(state, 0x2b, &AFCML) != 2)
+ goto err;
+ if (mb86a16_read(state, 0x2c, &AFCMH) != 2)
+ goto err;
+ }
+ if ((afcen == 1) || (afcexen == 1)) {
+ smrt_info_get(state, smrt);
+ AFCM = ((AFCMH & 0x01) << 8) + AFCML;
+ if (AFCM > 255)
+ afcm = AFCM - 512;
+ else
+ afcm = AFCM;
+
+ afcerr = afcm * state->master_clk / 8192;
+ } else
+ afcerr = 0;
+
+ if (mb86a16_read(state, 0x22, &temp1) != 2)
+ goto err;
+ if (mb86a16_read(state, 0x23, &temp2) != 2)
+ goto err;
+ if (mb86a16_read(state, 0x24, &temp3) != 2)
+ goto err;
+
+ R = (temp1 & 0xe0) >> 5;
+ M = ((temp1 & 0x1f) << 12) + (temp2 << 4) + (temp3 >> 4);
+ if (R == 0)
+ fOSC = 2 * M;
+ else
+ fOSC = M;
+
+ fOSC_OFS = fOSC - fTP;
+
+ if (unit == 0) { /* MHz */
+ if (crrerr + afcerr + fOSC_OFS * 1000 >= 0)
+ frqerr = (crrerr + afcerr + fOSC_OFS * 1000 + 500) / 1000;
+ else
+ frqerr = (crrerr + afcerr + fOSC_OFS * 1000 - 500) / 1000;
+ } else { /* kHz */
+ frqerr = crrerr + afcerr + fOSC_OFS * 1000;
+ }
+
+ return frqerr;
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static unsigned char vco_dev_get(struct mb86a16_state *state, int smrt)
+{
+ unsigned char R;
+
+ if (smrt > 9375)
+ R = 0;
+ else
+ R = 1;
+
+ return R;
+}
+
+static void swp_info_get(struct mb86a16_state *state,
+ int fOSC_start,
+ int smrt,
+ int v, int R,
+ int swp_ofs,
+ int *fOSC,
+ int *afcex_freq,
+ unsigned char *AFCEX_L,
+ unsigned char *AFCEX_H)
+{
+ int AFCEX ;
+ int crnt_swp_freq ;
+
+ crnt_swp_freq = fOSC_start * 1000 + v * swp_ofs;
+
+ if (R == 0)
+ *fOSC = (crnt_swp_freq + 1000) / 2000 * 2;
+ else
+ *fOSC = (crnt_swp_freq + 500) / 1000;
+
+ if (*fOSC >= crnt_swp_freq)
+ *afcex_freq = *fOSC * 1000 - crnt_swp_freq;
+ else
+ *afcex_freq = crnt_swp_freq - *fOSC * 1000;
+
+ AFCEX = *afcex_freq * 8192 / state->master_clk;
+ *AFCEX_L = AFCEX & 0x00ff;
+ *AFCEX_H = (AFCEX & 0x0f00) >> 8;
+}
+
+
+static int swp_freq_calcuation(struct mb86a16_state *state, int i, int v, int *V, int vmax, int vmin,
+ int SIGMIN, int fOSC, int afcex_freq, int swp_ofs, unsigned char *SIG1)
+{
+ int swp_freq ;
+
+ if ((i % 2 == 1) && (v <= vmax)) {
+ /* positive v (case 1) */
+ if ((v - 1 == vmin) &&
+ (*(V + 30 + v) >= 0) &&
+ (*(V + 30 + v - 1) >= 0) &&
+ (*(V + 30 + v - 1) > *(V + 30 + v)) &&
+ (*(V + 30 + v - 1) > SIGMIN)) {
+
+ swp_freq = fOSC * 1000 + afcex_freq - swp_ofs;
+ *SIG1 = *(V + 30 + v - 1);
+ } else if ((v == vmax) &&
+ (*(V + 30 + v) >= 0) &&
+ (*(V + 30 + v - 1) >= 0) &&
+ (*(V + 30 + v) > *(V + 30 + v - 1)) &&
+ (*(V + 30 + v) > SIGMIN)) {
+ /* (case 2) */
+ swp_freq = fOSC * 1000 + afcex_freq;
+ *SIG1 = *(V + 30 + v);
+ } else if ((*(V + 30 + v) > 0) &&
+ (*(V + 30 + v - 1) > 0) &&
+ (*(V + 30 + v - 2) > 0) &&
+ (*(V + 30 + v - 3) > 0) &&
+ (*(V + 30 + v - 1) > *(V + 30 + v)) &&
+ (*(V + 30 + v - 2) > *(V + 30 + v - 3)) &&
+ ((*(V + 30 + v - 1) > SIGMIN) ||
+ (*(V + 30 + v - 2) > SIGMIN))) {
+ /* (case 3) */
+ if (*(V + 30 + v - 1) >= *(V + 30 + v - 2)) {
+ swp_freq = fOSC * 1000 + afcex_freq - swp_ofs;
+ *SIG1 = *(V + 30 + v - 1);
+ } else {
+ swp_freq = fOSC * 1000 + afcex_freq - swp_ofs * 2;
+ *SIG1 = *(V + 30 + v - 2);
+ }
+ } else if ((v == vmax) &&
+ (*(V + 30 + v) >= 0) &&
+ (*(V + 30 + v - 1) >= 0) &&
+ (*(V + 30 + v - 2) >= 0) &&
+ (*(V + 30 + v) > *(V + 30 + v - 2)) &&
+ (*(V + 30 + v - 1) > *(V + 30 + v - 2)) &&
+ ((*(V + 30 + v) > SIGMIN) ||
+ (*(V + 30 + v - 1) > SIGMIN))) {
+ /* (case 4) */
+ if (*(V + 30 + v) >= *(V + 30 + v - 1)) {
+ swp_freq = fOSC * 1000 + afcex_freq;
+ *SIG1 = *(V + 30 + v);
+ } else {
+ swp_freq = fOSC * 1000 + afcex_freq - swp_ofs;
+ *SIG1 = *(V + 30 + v - 1);
+ }
+ } else {
+ swp_freq = -1 ;
+ }
+ } else if ((i % 2 == 0) && (v >= vmin)) {
+ /* Negative v (case 1) */
+ if ((*(V + 30 + v) > 0) &&
+ (*(V + 30 + v + 1) > 0) &&
+ (*(V + 30 + v + 2) > 0) &&
+ (*(V + 30 + v + 1) > *(V + 30 + v)) &&
+ (*(V + 30 + v + 1) > *(V + 30 + v + 2)) &&
+ (*(V + 30 + v + 1) > SIGMIN)) {
+
+ swp_freq = fOSC * 1000 + afcex_freq + swp_ofs;
+ *SIG1 = *(V + 30 + v + 1);
+ } else if ((v + 1 == vmax) &&
+ (*(V + 30 + v) >= 0) &&
+ (*(V + 30 + v + 1) >= 0) &&
+ (*(V + 30 + v + 1) > *(V + 30 + v)) &&
+ (*(V + 30 + v + 1) > SIGMIN)) {
+ /* (case 2) */
+ swp_freq = fOSC * 1000 + afcex_freq + swp_ofs;
+ *SIG1 = *(V + 30 + v);
+ } else if ((v == vmin) &&
+ (*(V + 30 + v) > 0) &&
+ (*(V + 30 + v + 1) > 0) &&
+ (*(V + 30 + v + 2) > 0) &&
+ (*(V + 30 + v) > *(V + 30 + v + 1)) &&
+ (*(V + 30 + v) > *(V + 30 + v + 2)) &&
+ (*(V + 30 + v) > SIGMIN)) {
+ /* (case 3) */
+ swp_freq = fOSC * 1000 + afcex_freq;
+ *SIG1 = *(V + 30 + v);
+ } else if ((*(V + 30 + v) >= 0) &&
+ (*(V + 30 + v + 1) >= 0) &&
+ (*(V + 30 + v + 2) >= 0) &&
+ (*(V + 30 + v + 3) >= 0) &&
+ (*(V + 30 + v + 1) > *(V + 30 + v)) &&
+ (*(V + 30 + v + 2) > *(V + 30 + v + 3)) &&
+ ((*(V + 30 + v + 1) > SIGMIN) ||
+ (*(V + 30 + v + 2) > SIGMIN))) {
+ /* (case 4) */
+ if (*(V + 30 + v + 1) >= *(V + 30 + v + 2)) {
+ swp_freq = fOSC * 1000 + afcex_freq + swp_ofs;
+ *SIG1 = *(V + 30 + v + 1);
+ } else {
+ swp_freq = fOSC * 1000 + afcex_freq + swp_ofs * 2;
+ *SIG1 = *(V + 30 + v + 2);
+ }
+ } else if ((*(V + 30 + v) >= 0) &&
+ (*(V + 30 + v + 1) >= 0) &&
+ (*(V + 30 + v + 2) >= 0) &&
+ (*(V + 30 + v + 3) >= 0) &&
+ (*(V + 30 + v) > *(V + 30 + v + 2)) &&
+ (*(V + 30 + v + 1) > *(V + 30 + v + 2)) &&
+ (*(V + 30 + v) > *(V + 30 + v + 3)) &&
+ (*(V + 30 + v + 1) > *(V + 30 + v + 3)) &&
+ ((*(V + 30 + v) > SIGMIN) ||
+ (*(V + 30 + v + 1) > SIGMIN))) {
+ /* (case 5) */
+ if (*(V + 30 + v) >= *(V + 30 + v + 1)) {
+ swp_freq = fOSC * 1000 + afcex_freq;
+ *SIG1 = *(V + 30 + v);
+ } else {
+ swp_freq = fOSC * 1000 + afcex_freq + swp_ofs;
+ *SIG1 = *(V + 30 + v + 1);
+ }
+ } else if ((v + 2 == vmin) &&
+ (*(V + 30 + v) >= 0) &&
+ (*(V + 30 + v + 1) >= 0) &&
+ (*(V + 30 + v + 2) >= 0) &&
+ (*(V + 30 + v + 1) > *(V + 30 + v)) &&
+ (*(V + 30 + v + 2) > *(V + 30 + v)) &&
+ ((*(V + 30 + v + 1) > SIGMIN) ||
+ (*(V + 30 + v + 2) > SIGMIN))) {
+ /* (case 6) */
+ if (*(V + 30 + v + 1) >= *(V + 30 + v + 2)) {
+ swp_freq = fOSC * 1000 + afcex_freq + swp_ofs;
+ *SIG1 = *(V + 30 + v + 1);
+ } else {
+ swp_freq = fOSC * 1000 + afcex_freq + swp_ofs * 2;
+ *SIG1 = *(V + 30 + v + 2);
+ }
+ } else if ((vmax == 0) && (vmin == 0) && (*(V + 30 + v) > SIGMIN)) {
+ swp_freq = fOSC * 1000;
+ *SIG1 = *(V + 30 + v);
+ } else
+ swp_freq = -1;
+ } else
+ swp_freq = -1;
+
+ return swp_freq;
+}
+
+static void swp_info_get2(struct mb86a16_state *state,
+ int smrt,
+ int R,
+ int swp_freq,
+ int *afcex_freq,
+ int *fOSC,
+ unsigned char *AFCEX_L,
+ unsigned char *AFCEX_H)
+{
+ int AFCEX ;
+
+ if (R == 0)
+ *fOSC = (swp_freq + 1000) / 2000 * 2;
+ else
+ *fOSC = (swp_freq + 500) / 1000;
+
+ if (*fOSC >= swp_freq)
+ *afcex_freq = *fOSC * 1000 - swp_freq;
+ else
+ *afcex_freq = swp_freq - *fOSC * 1000;
+
+ AFCEX = *afcex_freq * 8192 / state->master_clk;
+ *AFCEX_L = AFCEX & 0x00ff;
+ *AFCEX_H = (AFCEX & 0x0f00) >> 8;
+}
+
+static void afcex_info_get(struct mb86a16_state *state,
+ int afcex_freq,
+ unsigned char *AFCEX_L,
+ unsigned char *AFCEX_H)
+{
+ int AFCEX ;
+
+ AFCEX = afcex_freq * 8192 / state->master_clk;
+ *AFCEX_L = AFCEX & 0x00ff;
+ *AFCEX_H = (AFCEX & 0x0f00) >> 8;
+}
+
+static int SEQ_set(struct mb86a16_state *state, unsigned char loop)
+{
+ /* SLOCK0 = 0 */
+ if (mb86a16_write(state, 0x32, 0x02 | (loop << 2)) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+ }
+
+ return 0;
+}
+
+static int iq_vt_set(struct mb86a16_state *state, unsigned char IQINV)
+{
+ /* Viterbi Rate, IQ Settings */
+ if (mb86a16_write(state, 0x06, 0xdf | (IQINV << 5)) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+ }
+
+ return 0;
+}
+
+static int FEC_srst(struct mb86a16_state *state)
+{
+ if (mb86a16_write(state, MB86A16_RESET, 0x02) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+ }
+
+ return 0;
+}
+
+static int S2T_set(struct mb86a16_state *state, unsigned char S2T)
+{
+ if (mb86a16_write(state, 0x34, 0x70 | S2T) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+ }
+
+ return 0;
+}
+
+static int S45T_set(struct mb86a16_state *state, unsigned char S4T, unsigned char S5T)
+{
+ if (mb86a16_write(state, 0x35, 0x00 | (S5T << 4) | S4T) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+ }
+
+ return 0;
+}
+
+
+static int mb86a16_set_fe(struct mb86a16_state *state)
+{
+ u8 agcval, cnmval;
+
+ int i, j;
+ int fOSC = 0;
+ int fOSC_start = 0;
+ int wait_t;
+ int fcp;
+ int swp_ofs;
+ int V[60];
+ u8 SIG1MIN;
+
+ unsigned char CREN, AFCEN, AFCEXEN;
+ unsigned char SIG1;
+ unsigned char TIMINT1, TIMINT2, TIMEXT;
+ unsigned char S0T, S1T;
+ unsigned char S2T;
+/* unsigned char S2T, S3T; */
+ unsigned char S4T, S5T;
+ unsigned char AFCEX_L, AFCEX_H;
+ unsigned char R;
+ unsigned char VIRM;
+ unsigned char ETH, VIA;
+ unsigned char junk;
+
+ int loop;
+ int ftemp;
+ int v, vmax, vmin;
+ int vmax_his, vmin_his;
+ int swp_freq, prev_swp_freq[20];
+ int prev_freq_num;
+ int signal_dupl;
+ int afcex_freq;
+ int signal;
+ int afcerr;
+ int temp_freq, delta_freq;
+ int dagcm[4];
+ int smrt_d;
+/* int freq_err; */
+ int n;
+ int ret = -1;
+ int sync;
+
+ dprintk(verbose, MB86A16_INFO, 1, "freq=%d Mhz, symbrt=%d Ksps", state->frequency, state->srate);
+
+ fcp = 3000;
+ swp_ofs = state->srate / 4;
+
+ for (i = 0; i < 60; i++)
+ V[i] = -1;
+
+ for (i = 0; i < 20; i++)
+ prev_swp_freq[i] = 0;
+
+ SIG1MIN = 25;
+
+ for (n = 0; ((n < 3) && (ret == -1)); n++) {
+ SEQ_set(state, 0);
+ iq_vt_set(state, 0);
+
+ CREN = 0;
+ AFCEN = 0;
+ AFCEXEN = 1;
+ TIMINT1 = 0;
+ TIMINT2 = 1;
+ TIMEXT = 2;
+ S1T = 0;
+ S0T = 0;
+
+ if (initial_set(state) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "initial set failed");
+ return -1;
+ }
+ if (DAGC_data_set(state, 3, 2) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "DAGC data set error");
+ return -1;
+ }
+ if (EN_set(state, CREN, AFCEN) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "EN set error");
+ return -1; /* (0, 0) */
+ }
+ if (AFCEXEN_set(state, AFCEXEN, state->srate) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "AFCEXEN set error");
+ return -1; /* (1, smrt) = (1, symbolrate) */
+ }
+ if (CNTM_set(state, TIMINT1, TIMINT2, TIMEXT) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "CNTM set error");
+ return -1; /* (0, 1, 2) */
+ }
+ if (S01T_set(state, S1T, S0T) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "S01T set error");
+ return -1; /* (0, 0) */
+ }
+ smrt_info_get(state, state->srate);
+ if (smrt_set(state, state->srate) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "smrt info get error");
+ return -1;
+ }
+
+ R = vco_dev_get(state, state->srate);
+ if (R == 1)
+ fOSC_start = state->frequency;
+
+ else if (R == 0) {
+ if (state->frequency % 2 == 0) {
+ fOSC_start = state->frequency;
+ } else {
+ fOSC_start = state->frequency + 1;
+ if (fOSC_start > 2150)
+ fOSC_start = state->frequency - 1;
+ }
+ }
+ loop = 1;
+ ftemp = fOSC_start * 1000;
+ vmax = 0 ;
+ while (loop == 1) {
+ ftemp = ftemp + swp_ofs;
+ vmax++;
+
+ /* Upper bound */
+ if (ftemp > 2150000) {
+ loop = 0;
+ vmax--;
+ } else {
+ if ((ftemp == 2150000) ||
+ (ftemp - state->frequency * 1000 >= fcp + state->srate / 4))
+ loop = 0;
+ }
+ }
+
+ loop = 1;
+ ftemp = fOSC_start * 1000;
+ vmin = 0 ;
+ while (loop == 1) {
+ ftemp = ftemp - swp_ofs;
+ vmin--;
+
+ /* Lower bound */
+ if (ftemp < 950000) {
+ loop = 0;
+ vmin++;
+ } else {
+ if ((ftemp == 950000) ||
+ (state->frequency * 1000 - ftemp >= fcp + state->srate / 4))
+ loop = 0;
+ }
+ }
+
+ wait_t = (8000 + state->srate / 2) / state->srate;
+ if (wait_t == 0)
+ wait_t = 1;
+
+ i = 0;
+ j = 0;
+ prev_freq_num = 0;
+ loop = 1;
+ signal = 0;
+ vmax_his = 0;
+ vmin_his = 0;
+ v = 0;
+
+ while (loop == 1) {
+ swp_info_get(state, fOSC_start, state->srate,
+ v, R, swp_ofs, &fOSC,
+ &afcex_freq, &AFCEX_L, &AFCEX_H);
+
+ udelay(100);
+ if (rf_val_set(state, fOSC, state->srate, R) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "rf val set error");
+ return -1;
+ }
+ udelay(100);
+ if (afcex_data_set(state, AFCEX_L, AFCEX_H) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "afcex data set error");
+ return -1;
+ }
+ if (srst(state) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "srst error");
+ return -1;
+ }
+ msleep_interruptible(wait_t);
+
+ if (mb86a16_read(state, 0x37, &SIG1) != 2) {
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -1;
+ }
+ V[30 + v] = SIG1 ;
+ swp_freq = swp_freq_calcuation(state, i, v, V, vmax, vmin,
+ SIG1MIN, fOSC, afcex_freq,
+ swp_ofs, &SIG1); /* changed */
+
+ signal_dupl = 0;
+ for (j = 0; j < prev_freq_num; j++) {
+ if ((ABS(prev_swp_freq[j] - swp_freq)) < (swp_ofs * 3 / 2)) {
+ signal_dupl = 1;
+ dprintk(verbose, MB86A16_INFO, 1, "Probably Duplicate Signal, j = %d", j);
+ }
+ }
+ if ((signal_dupl == 0) && (swp_freq > 0) && (ABS(swp_freq - state->frequency * 1000) < fcp + state->srate / 6)) {
+ dprintk(verbose, MB86A16_DEBUG, 1, "------ Signal detect ------ [swp_freq=[%07d, srate=%05d]]", swp_freq, state->srate);
+ prev_swp_freq[prev_freq_num] = swp_freq;
+ prev_freq_num++;
+ swp_info_get2(state, state->srate, R, swp_freq,
+ &afcex_freq, &fOSC,
+ &AFCEX_L, &AFCEX_H);
+
+ if (rf_val_set(state, fOSC, state->srate, R) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "rf val set error");
+ return -1;
+ }
+ if (afcex_data_set(state, AFCEX_L, AFCEX_H) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "afcex data set error");
+ return -1;
+ }
+ signal = signal_det(state, state->srate, &SIG1);
+ if (signal == 1) {
+ dprintk(verbose, MB86A16_ERROR, 1, "***** Signal Found *****");
+ loop = 0;
+ } else {
+ dprintk(verbose, MB86A16_ERROR, 1, "!!!!! No signal !!!!!, try again...");
+ smrt_info_get(state, state->srate);
+ if (smrt_set(state, state->srate) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "smrt set error");
+ return -1;
+ }
+ }
+ }
+ if (v > vmax)
+ vmax_his = 1 ;
+ if (v < vmin)
+ vmin_his = 1 ;
+ i++;
+
+ if ((i % 2 == 1) && (vmax_his == 1))
+ i++;
+ if ((i % 2 == 0) && (vmin_his == 1))
+ i++;
+
+ if (i % 2 == 1)
+ v = (i + 1) / 2;
+ else
+ v = -i / 2;
+
+ if ((vmax_his == 1) && (vmin_his == 1))
+ loop = 0 ;
+ }
+
+ if (signal == 1) {
+ dprintk(verbose, MB86A16_INFO, 1, " Start Freq Error Check");
+ S1T = 7 ;
+ S0T = 1 ;
+ CREN = 0 ;
+ AFCEN = 1 ;
+ AFCEXEN = 0 ;
+
+ if (S01T_set(state, S1T, S0T) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "S01T set error");
+ return -1;
+ }
+ smrt_info_get(state, state->srate);
+ if (smrt_set(state, state->srate) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "smrt set error");
+ return -1;
+ }
+ if (EN_set(state, CREN, AFCEN) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "EN set error");
+ return -1;
+ }
+ if (AFCEXEN_set(state, AFCEXEN, state->srate) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "AFCEXEN set error");
+ return -1;
+ }
+ afcex_info_get(state, afcex_freq, &AFCEX_L, &AFCEX_H);
+ if (afcofs_data_set(state, AFCEX_L, AFCEX_H) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "AFCOFS data set error");
+ return -1;
+ }
+ if (srst(state) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "srst error");
+ return -1;
+ }
+ /* delay 4~200 */
+ wait_t = 200000 / state->master_clk + 200000 / state->srate;
+ msleep(wait_t);
+ afcerr = afcerr_chk(state);
+ if (afcerr == -1)
+ return -1;
+
+ swp_freq = fOSC * 1000 + afcerr ;
+ AFCEXEN = 1 ;
+ if (state->srate >= 1500)
+ smrt_d = state->srate / 3;
+ else
+ smrt_d = state->srate / 2;
+ smrt_info_get(state, smrt_d);
+ if (smrt_set(state, smrt_d) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "smrt set error");
+ return -1;
+ }
+ if (AFCEXEN_set(state, AFCEXEN, smrt_d) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "AFCEXEN set error");
+ return -1;
+ }
+ R = vco_dev_get(state, smrt_d);
+ if (DAGC_data_set(state, 2, 0) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "DAGC data set error");
+ return -1;
+ }
+ for (i = 0; i < 3; i++) {
+ temp_freq = swp_freq + (i - 1) * state->srate / 8;
+ swp_info_get2(state, smrt_d, R, temp_freq, &afcex_freq, &fOSC, &AFCEX_L, &AFCEX_H);
+ if (rf_val_set(state, fOSC, smrt_d, R) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "rf val set error");
+ return -1;
+ }
+ if (afcex_data_set(state, AFCEX_L, AFCEX_H) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "afcex data set error");
+ return -1;
+ }
+ wait_t = 200000 / state->master_clk + 40000 / smrt_d;
+ msleep(wait_t);
+ dagcm[i] = dagcm_val_get(state);
+ }
+ if ((dagcm[0] > dagcm[1]) &&
+ (dagcm[0] > dagcm[2]) &&
+ (dagcm[0] - dagcm[1] > 2 * (dagcm[2] - dagcm[1]))) {
+
+ temp_freq = swp_freq - 2 * state->srate / 8;
+ swp_info_get2(state, smrt_d, R, temp_freq, &afcex_freq, &fOSC, &AFCEX_L, &AFCEX_H);
+ if (rf_val_set(state, fOSC, smrt_d, R) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "rf val set error");
+ return -1;
+ }
+ if (afcex_data_set(state, AFCEX_L, AFCEX_H) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "afcex data set");
+ return -1;
+ }
+ wait_t = 200000 / state->master_clk + 40000 / smrt_d;
+ msleep(wait_t);
+ dagcm[3] = dagcm_val_get(state);
+ if (dagcm[3] > dagcm[1])
+ delta_freq = (dagcm[2] - dagcm[0] + dagcm[1] - dagcm[3]) * state->srate / 300;
+ else
+ delta_freq = 0;
+ } else if ((dagcm[2] > dagcm[1]) &&
+ (dagcm[2] > dagcm[0]) &&
+ (dagcm[2] - dagcm[1] > 2 * (dagcm[0] - dagcm[1]))) {
+
+ temp_freq = swp_freq + 2 * state->srate / 8;
+ swp_info_get2(state, smrt_d, R, temp_freq, &afcex_freq, &fOSC, &AFCEX_L, &AFCEX_H);
+ if (rf_val_set(state, fOSC, smrt_d, R) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "rf val set");
+ return -1;
+ }
+ if (afcex_data_set(state, AFCEX_L, AFCEX_H) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "afcex data set");
+ return -1;
+ }
+ wait_t = 200000 / state->master_clk + 40000 / smrt_d;
+ msleep(wait_t);
+ dagcm[3] = dagcm_val_get(state);
+ if (dagcm[3] > dagcm[1])
+ delta_freq = (dagcm[2] - dagcm[0] + dagcm[3] - dagcm[1]) * state->srate / 300;
+ else
+ delta_freq = 0 ;
+
+ } else {
+ delta_freq = 0 ;
+ }
+ dprintk(verbose, MB86A16_INFO, 1, "SWEEP Frequency = %d", swp_freq);
+ swp_freq += delta_freq;
+ dprintk(verbose, MB86A16_INFO, 1, "Adjusting .., DELTA Freq = %d, SWEEP Freq=%d", delta_freq, swp_freq);
+ if (ABS(state->frequency * 1000 - swp_freq) > 3800) {
+ dprintk(verbose, MB86A16_INFO, 1, "NO -- SIGNAL !");
+ } else {
+
+ S1T = 0;
+ S0T = 3;
+ CREN = 1;
+ AFCEN = 0;
+ AFCEXEN = 1;
+
+ if (S01T_set(state, S1T, S0T) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "S01T set error");
+ return -1;
+ }
+ if (DAGC_data_set(state, 0, 0) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "DAGC data set error");
+ return -1;
+ }
+ R = vco_dev_get(state, state->srate);
+ smrt_info_get(state, state->srate);
+ if (smrt_set(state, state->srate) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "smrt set error");
+ return -1;
+ }
+ if (EN_set(state, CREN, AFCEN) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "EN set error");
+ return -1;
+ }
+ if (AFCEXEN_set(state, AFCEXEN, state->srate) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "AFCEXEN set error");
+ return -1;
+ }
+ swp_info_get2(state, state->srate, R, swp_freq, &afcex_freq, &fOSC, &AFCEX_L, &AFCEX_H);
+ if (rf_val_set(state, fOSC, state->srate, R) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "rf val set error");
+ return -1;
+ }
+ if (afcex_data_set(state, AFCEX_L, AFCEX_H) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "afcex data set error");
+ return -1;
+ }
+ if (srst(state) < 0) {
+ dprintk(verbose, MB86A16_ERROR, 1, "srst error");
+ return -1;
+ }
+ wait_t = 7 + (10000 + state->srate / 2) / state->srate;
+ if (wait_t == 0)
+ wait_t = 1;
+ msleep_interruptible(wait_t);
+ if (mb86a16_read(state, 0x37, &SIG1) != 2) {
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+ }
+
+ if (SIG1 > 110) {
+ S2T = 4; S4T = 1; S5T = 6; ETH = 4; VIA = 6;
+ wait_t = 7 + (917504 + state->srate / 2) / state->srate;
+ } else if (SIG1 > 105) {
+ S2T = 4; S4T = 2; S5T = 8; ETH = 7; VIA = 2;
+ wait_t = 7 + (1048576 + state->srate / 2) / state->srate;
+ } else if (SIG1 > 85) {
+ S2T = 5; S4T = 2; S5T = 8; ETH = 7; VIA = 2;
+ wait_t = 7 + (1310720 + state->srate / 2) / state->srate;
+ } else if (SIG1 > 65) {
+ S2T = 6; S4T = 2; S5T = 8; ETH = 7; VIA = 2;
+ wait_t = 7 + (1572864 + state->srate / 2) / state->srate;
+ } else {
+ S2T = 7; S4T = 2; S5T = 8; ETH = 7; VIA = 2;
+ wait_t = 7 + (2097152 + state->srate / 2) / state->srate;
+ }
+ wait_t *= 2; /* FOS */
+ S2T_set(state, S2T);
+ S45T_set(state, S4T, S5T);
+ Vi_set(state, ETH, VIA);
+ srst(state);
+ msleep_interruptible(wait_t);
+ sync = sync_chk(state, &VIRM);
+ dprintk(verbose, MB86A16_INFO, 1, "-------- Viterbi=[%d] SYNC=[%d] ---------", VIRM, sync);
+ if (VIRM) {
+ if (VIRM == 4) {
+ /* 5/6 */
+ if (SIG1 > 110)
+ wait_t = (786432 + state->srate / 2) / state->srate;
+ else
+ wait_t = (1572864 + state->srate / 2) / state->srate;
+ if (state->srate < 5000)
+ /* FIXME ! , should be a long wait ! */
+ msleep_interruptible(wait_t);
+ else
+ msleep_interruptible(wait_t);
+
+ if (sync_chk(state, &junk) == 0) {
+ iq_vt_set(state, 1);
+ FEC_srst(state);
+ }
+ }
+ /* 1/2, 2/3, 3/4, 7/8 */
+ if (SIG1 > 110)
+ wait_t = (786432 + state->srate / 2) / state->srate;
+ else
+ wait_t = (1572864 + state->srate / 2) / state->srate;
+ msleep_interruptible(wait_t);
+ SEQ_set(state, 1);
+ } else {
+ dprintk(verbose, MB86A16_INFO, 1, "NO -- SYNC");
+ SEQ_set(state, 1);
+ ret = -1;
+ }
+ }
+ } else {
+ dprintk(verbose, MB86A16_INFO, 1, "NO -- SIGNAL");
+ ret = -1;
+ }
+
+ sync = sync_chk(state, &junk);
+ if (sync) {
+ dprintk(verbose, MB86A16_INFO, 1, "******* SYNC *******");
+ freqerr_chk(state, state->frequency, state->srate, 1);
+ ret = 0;
+ break;
+ }
+ }
+
+ mb86a16_read(state, 0x15, &agcval);
+ mb86a16_read(state, 0x26, &cnmval);
+ dprintk(verbose, MB86A16_INFO, 1, "AGC = %02x CNM = %02x", agcval, cnmval);
+
+ return ret;
+}
+
+static int mb86a16_send_diseqc_msg(struct dvb_frontend *fe,
+ struct dvb_diseqc_master_cmd *cmd)
+{
+ struct mb86a16_state *state = fe->demodulator_priv;
+ int i;
+ u8 regs;
+
+ if (mb86a16_write(state, MB86A16_DCC1, MB86A16_DCC1_DISTA) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_DCCOUT, 0x00) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_TONEOUT2, 0x04) < 0)
+ goto err;
+
+ regs = 0x18;
+
+ if (cmd->msg_len > 5 || cmd->msg_len < 4)
+ return -EINVAL;
+
+ for (i = 0; i < cmd->msg_len; i++) {
+ if (mb86a16_write(state, regs, cmd->msg[i]) < 0)
+ goto err;
+
+ regs++;
+ }
+ i += 0x90;
+
+ msleep_interruptible(10);
+
+ if (mb86a16_write(state, MB86A16_DCC1, i) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_DCCOUT, MB86A16_DCCOUT_DISEN) < 0)
+ goto err;
+
+ return 0;
+
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int mb86a16_send_diseqc_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
+{
+ struct mb86a16_state *state = fe->demodulator_priv;
+
+ switch (burst) {
+ case SEC_MINI_A:
+ if (mb86a16_write(state, MB86A16_DCC1, MB86A16_DCC1_DISTA |
+ MB86A16_DCC1_TBEN |
+ MB86A16_DCC1_TBO) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_DCCOUT, MB86A16_DCCOUT_DISEN) < 0)
+ goto err;
+ break;
+ case SEC_MINI_B:
+ if (mb86a16_write(state, MB86A16_DCC1, MB86A16_DCC1_DISTA |
+ MB86A16_DCC1_TBEN) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_DCCOUT, MB86A16_DCCOUT_DISEN) < 0)
+ goto err;
+ break;
+ }
+
+ return 0;
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int mb86a16_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
+{
+ struct mb86a16_state *state = fe->demodulator_priv;
+
+ switch (tone) {
+ case SEC_TONE_ON:
+ if (mb86a16_write(state, MB86A16_TONEOUT2, 0x00) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_DCC1, MB86A16_DCC1_DISTA |
+ MB86A16_DCC1_CTOE) < 0)
+
+ goto err;
+ if (mb86a16_write(state, MB86A16_DCCOUT, MB86A16_DCCOUT_DISEN) < 0)
+ goto err;
+ break;
+ case SEC_TONE_OFF:
+ if (mb86a16_write(state, MB86A16_TONEOUT2, 0x04) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_DCC1, MB86A16_DCC1_DISTA) < 0)
+ goto err;
+ if (mb86a16_write(state, MB86A16_DCCOUT, 0x00) < 0)
+ goto err;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static enum dvbfe_search mb86a16_search(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+ struct mb86a16_state *state = fe->demodulator_priv;
+
+ state->frequency = p->frequency / 1000;
+ state->srate = p->symbol_rate / 1000;
+
+ if (!mb86a16_set_fe(state)) {
+ dprintk(verbose, MB86A16_ERROR, 1, "Successfully acquired LOCK");
+ return DVBFE_ALGO_SEARCH_SUCCESS;
+ }
+
+ dprintk(verbose, MB86A16_ERROR, 1, "Lock acquisition failed!");
+ return DVBFE_ALGO_SEARCH_FAILED;
+}
+
+static void mb86a16_release(struct dvb_frontend *fe)
+{
+ struct mb86a16_state *state = fe->demodulator_priv;
+ kfree(state);
+}
+
+static int mb86a16_init(struct dvb_frontend *fe)
+{
+ return 0;
+}
+
+static int mb86a16_sleep(struct dvb_frontend *fe)
+{
+ return 0;
+}
+
+static int mb86a16_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+ u8 ber_mon, ber_tab, ber_lsb, ber_mid, ber_msb, ber_tim, ber_rst;
+ u32 timer;
+
+ struct mb86a16_state *state = fe->demodulator_priv;
+
+ *ber = 0;
+ if (mb86a16_read(state, MB86A16_BERMON, &ber_mon) != 2)
+ goto err;
+ if (mb86a16_read(state, MB86A16_BERTAB, &ber_tab) != 2)
+ goto err;
+ if (mb86a16_read(state, MB86A16_BERLSB, &ber_lsb) != 2)
+ goto err;
+ if (mb86a16_read(state, MB86A16_BERMID, &ber_mid) != 2)
+ goto err;
+ if (mb86a16_read(state, MB86A16_BERMSB, &ber_msb) != 2)
+ goto err;
+ /* BER monitor invalid when BER_EN = 0 */
+ if (ber_mon & 0x04) {
+ /* coarse, fast calculation */
+ *ber = ber_tab & 0x1f;
+ dprintk(verbose, MB86A16_DEBUG, 1, "BER coarse=[0x%02x]", *ber);
+ if (ber_mon & 0x01) {
+ /*
+ * BER_SEL = 1, The monitored BER is the estimated
+ * value with a Reed-Solomon decoder error amount at
+ * the deinterleaver output.
+ * monitored BER is expressed as a 20 bit output in total
+ */
+ ber_rst = ber_mon >> 3;
+ *ber = (((ber_msb << 8) | ber_mid) << 8) | ber_lsb;
+ if (ber_rst == 0)
+ timer = 12500000;
+ if (ber_rst == 1)
+ timer = 25000000;
+ if (ber_rst == 2)
+ timer = 50000000;
+ if (ber_rst == 3)
+ timer = 100000000;
+
+ *ber /= timer;
+ dprintk(verbose, MB86A16_DEBUG, 1, "BER fine=[0x%02x]", *ber);
+ } else {
+ /*
+ * BER_SEL = 0, The monitored BER is the estimated
+ * value with a Viterbi decoder error amount at the
+ * QPSK demodulator output.
+ * monitored BER is expressed as a 24 bit output in total
+ */
+ ber_tim = ber_mon >> 1;
+ *ber = (((ber_msb << 8) | ber_mid) << 8) | ber_lsb;
+ if (ber_tim == 0)
+ timer = 16;
+ if (ber_tim == 1)
+ timer = 24;
+
+ *ber /= 2 ^ timer;
+ dprintk(verbose, MB86A16_DEBUG, 1, "BER fine=[0x%02x]", *ber);
+ }
+ }
+ return 0;
+err:
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+}
+
+static int mb86a16_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
+{
+ u8 agcm = 0;
+ struct mb86a16_state *state = fe->demodulator_priv;
+
+ *strength = 0;
+ if (mb86a16_read(state, MB86A16_AGCM, &agcm) != 2) {
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+ }
+
+ *strength = ((0xff - agcm) * 100) / 256;
+ dprintk(verbose, MB86A16_DEBUG, 1, "Signal strength=[%d %%]", (u8) *strength);
+ *strength = (0xffff - 0xff) + agcm;
+
+ return 0;
+}
+
+struct cnr {
+ u8 cn_reg;
+ u8 cn_val;
+};
+
+static const struct cnr cnr_tab[] = {
+ { 35, 2 },
+ { 40, 3 },
+ { 50, 4 },
+ { 60, 5 },
+ { 70, 6 },
+ { 80, 7 },
+ { 92, 8 },
+ { 103, 9 },
+ { 115, 10 },
+ { 138, 12 },
+ { 162, 15 },
+ { 180, 18 },
+ { 185, 19 },
+ { 189, 20 },
+ { 195, 22 },
+ { 199, 24 },
+ { 201, 25 },
+ { 202, 26 },
+ { 203, 27 },
+ { 205, 28 },
+ { 208, 30 }
+};
+
+static int mb86a16_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+ struct mb86a16_state *state = fe->demodulator_priv;
+ int i = 0;
+ int low_tide = 2, high_tide = 30, q_level;
+ u8 cn;
+
+ *snr = 0;
+ if (mb86a16_read(state, 0x26, &cn) != 2) {
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(cnr_tab); i++) {
+ if (cn < cnr_tab[i].cn_reg) {
+ *snr = cnr_tab[i].cn_val;
+ break;
+ }
+ }
+ q_level = (*snr * 100) / (high_tide - low_tide);
+ dprintk(verbose, MB86A16_ERROR, 1, "SNR (Quality) = [%d dB], Level=%d %%", *snr, q_level);
+ *snr = (0xffff - 0xff) + *snr;
+
+ return 0;
+}
+
+static int mb86a16_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
+{
+ u8 dist;
+ struct mb86a16_state *state = fe->demodulator_priv;
+
+ if (mb86a16_read(state, MB86A16_DISTMON, &dist) != 2) {
+ dprintk(verbose, MB86A16_ERROR, 1, "I2C transfer error");
+ return -EREMOTEIO;
+ }
+ *ucblocks = dist;
+
+ return 0;
+}
+
+static enum dvbfe_algo mb86a16_frontend_algo(struct dvb_frontend *fe)
+{
+ return DVBFE_ALGO_CUSTOM;
+}
+
+static struct dvb_frontend_ops mb86a16_ops = {
+ .delsys = { SYS_DVBS },
+ .info = {
+ .name = "Fujitsu MB86A16 DVB-S",
+ .frequency_min = 950000,
+ .frequency_max = 2150000,
+ .frequency_stepsize = 3000,
+ .frequency_tolerance = 0,
+ .symbol_rate_min = 1000000,
+ .symbol_rate_max = 45000000,
+ .symbol_rate_tolerance = 500,
+ .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
+ FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 |
+ FE_CAN_FEC_7_8 | FE_CAN_QPSK |
+ FE_CAN_FEC_AUTO
+ },
+ .release = mb86a16_release,
+
+ .get_frontend_algo = mb86a16_frontend_algo,
+ .search = mb86a16_search,
+ .init = mb86a16_init,
+ .sleep = mb86a16_sleep,
+ .read_status = mb86a16_read_status,
+
+ .read_ber = mb86a16_read_ber,
+ .read_signal_strength = mb86a16_read_signal_strength,
+ .read_snr = mb86a16_read_snr,
+ .read_ucblocks = mb86a16_read_ucblocks,
+
+ .diseqc_send_master_cmd = mb86a16_send_diseqc_msg,
+ .diseqc_send_burst = mb86a16_send_diseqc_burst,
+ .set_tone = mb86a16_set_tone,
+};
+
+struct dvb_frontend *mb86a16_attach(const struct mb86a16_config *config,
+ struct i2c_adapter *i2c_adap)
+{
+ u8 dev_id = 0;
+ struct mb86a16_state *state = NULL;
+
+ state = kmalloc(sizeof(struct mb86a16_state), GFP_KERNEL);
+ if (state == NULL)
+ goto error;
+
+ state->config = config;
+ state->i2c_adap = i2c_adap;
+
+ mb86a16_read(state, 0x7f, &dev_id);
+ if (dev_id != 0xfe)
+ goto error;
+
+ memcpy(&state->frontend.ops, &mb86a16_ops, sizeof(struct dvb_frontend_ops));
+ state->frontend.demodulator_priv = state;
+ state->frontend.ops.set_voltage = state->config->set_voltage;
+
+ return &state->frontend;
+error:
+ kfree(state);
+ return NULL;
+}
+EXPORT_SYMBOL(mb86a16_attach);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Manu Abraham");
Code Review / kvmfornfv.git / blobdiff