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Diffstat (limited to 'linux/drivers/media/dvb/frontends/ves1x93.c')
-rw-r--r--linux/drivers/media/dvb/frontends/ves1x93.c619
1 files changed, 619 insertions, 0 deletions
diff --git a/linux/drivers/media/dvb/frontends/ves1x93.c b/linux/drivers/media/dvb/frontends/ves1x93.c
new file mode 100644
index 000000000..415d1cfaf
--- /dev/null
+++ b/linux/drivers/media/dvb/frontends/ves1x93.c
@@ -0,0 +1,619 @@
+/*
+ Driver for VES1893 and VES1993 QPSK Frontends
+
+ Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
+ Copyright (C) 2001 Ronny Strutz <3des@tuxbox.org>
+ Copyright (C) 2002 Dennis Noermann <dennis.noermann@noernet.de>
+ Copyright (C) 2002-2003 Andreas Oberritter <obi@tuxbox.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/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+#include "dvb_frontend.h"
+
+static int debug = 0;
+#define dprintk if (debug) printk
+
+static int board_type = 0;
+#define BOARD_SIEMENS_PCI 0
+#define BOARD_NOKIA_DBOX2 1
+#define BOARD_SAGEM_DBOX2 2
+
+static int demod_type = 0;
+#define DEMOD_VES1893 0
+#define DEMOD_VES1993 1
+
+static struct dvb_frontend_info ves1x93_info = {
+ .name = "VES1x93",
+ .type = FE_QPSK,
+ .frequency_min = 950000,
+ .frequency_max = 2150000,
+ .frequency_stepsize = 250, /* kHz for QPSK frontends */
+ .frequency_tolerance = 29500,
+ .symbol_rate_min = 1000000,
+ .symbol_rate_max = 45000000,
+/* .symbol_rate_tolerance = ???,*/
+ .notifier_delay = 50, /* 1/20 s */
+ .caps = FE_CAN_INVERSION_AUTO |
+ 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_FEC_AUTO |
+ FE_CAN_QPSK
+};
+
+
+/**
+ * nokia dbox2 (ves1893) and sagem dbox2 (ves1993)
+ * need bit AGCR[PWMS] set to 1
+ */
+
+static u8 init_1893_tab [] = {
+ 0x01, 0xa4, 0x35, 0x81, 0x2a, 0x0d, 0x55, 0xc4,
+ 0x09, 0x69, 0x00, 0x86, 0x4c, 0x28, 0x7f, 0x00,
+ 0x00, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x80, 0x00, 0x31, 0xb0, 0x14, 0x00, 0xdc, 0x00,
+ 0x81, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x55, 0x00, 0x00, 0x7f, 0x00
+};
+
+
+static u8 init_1993_tab [] = {
+ 0x00, 0x9c, 0x35, 0x80, 0x6a, 0x09, 0x72, 0x8c,
+ 0x09, 0x6b, 0x00, 0x00, 0x4c, 0x08, 0x00, 0x00,
+ 0x00, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x80, 0x40, 0x21, 0xb0, 0x00, 0x00, 0x00, 0x10,
+ 0x81, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x55, 0x03, 0x00, 0x00, 0x00, 0x00, 0x03,
+ 0x00, 0x00, 0x0e, 0x80, 0x00
+};
+
+
+static u8 * init_1x93_tab;
+
+
+static u8 init_1893_wtab[] =
+{
+ 1,1,1,1,1,1,1,1, 1,1,0,0,1,1,0,0,
+ 0,1,0,0,0,0,0,0, 1,0,1,1,0,0,0,1,
+ 1,1,1,0,0,0,0,0, 0,0,1,1,0,0,0,0,
+ 1,1,1,0,1,1
+};
+
+
+static u8 init_1993_wtab[] =
+{
+ 1,1,1,1,1,1,1,1, 1,1,0,0,1,1,0,0,
+ 0,1,0,0,0,0,0,0, 1,1,1,1,0,0,0,1,
+ 1,1,1,0,0,0,0,0, 0,0,1,1,0,0,0,0,
+ 1,1,1,0,1,1,1,1, 1,1,1,1,1
+};
+
+
+static int ves1x93_writereg (struct dvb_i2c_bus *i2c, u8 reg, u8 data)
+{
+ u8 buf [] = { 0x00, reg, data };
+ struct i2c_msg msg = { .addr = 0x08, .flags = 0, .buf = buf, .len = 3 };
+ int err;
+
+ if ((err = i2c->xfer (i2c, &msg, 1)) != 1) {
+ dprintk ("%s: writereg error (err == %i, reg == 0x%02x, data == 0x%02x)\n", __FUNCTION__, err, reg, data);
+ return -EREMOTEIO;
+ }
+
+ return 0;
+}
+
+
+static u8 ves1x93_readreg (struct dvb_i2c_bus *i2c, u8 reg)
+{
+ int ret;
+ u8 b0 [] = { 0x00, reg };
+ u8 b1 [] = { 0 };
+ struct i2c_msg msg [] = { { .addr = 0x08, .flags = 0, .buf = b0, .len = 2 },
+ { .addr = 0x08, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
+
+ ret = i2c->xfer (i2c, msg, 2);
+
+ if (ret != 2)
+ dprintk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret);
+
+ return b1[0];
+}
+
+
+static int tuner_write (struct dvb_i2c_bus *i2c, u8 *data, u8 len)
+{
+ int ret;
+ struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = len };
+
+ ves1x93_writereg(i2c, 0x00, 0x11);
+ ret = i2c->xfer (i2c, &msg, 1);
+ ves1x93_writereg(i2c, 0x00, 0x01);
+
+ if (ret != 1)
+ printk("%s: i/o error (ret == %i)\n", __FUNCTION__, ret);
+
+ return (ret != 1) ? -1 : 0;
+}
+
+
+
+/**
+ * set up the downconverter frequency divisor for a
+ * reference clock comparision frequency of 125 kHz.
+ */
+static int sp5659_set_tv_freq (struct dvb_i2c_bus *i2c, u32 freq, u8 pwr)
+{
+ u32 div = (freq + 479500) / 125;
+ u8 buf [4] = { (div >> 8) & 0x7f, div & 0xff, 0x95, (pwr << 5) | 0x30 };
+
+ return tuner_write (i2c, buf, sizeof(buf));
+}
+
+
+static int tsa5059_set_tv_freq (struct dvb_i2c_bus *i2c, u32 freq)
+{
+ int ret;
+ u8 buf [2];
+
+ freq /= 1000;
+
+ buf[0] = (freq >> 8) & 0x7F;
+ buf[1] = freq & 0xFF;
+
+ ret = tuner_write(i2c, buf, sizeof(buf));
+
+ return ret;
+}
+
+
+static int tuner_set_tv_freq (struct dvb_i2c_bus *i2c, u32 freq, u8 pwr)
+{
+ if ((demod_type == DEMOD_VES1893) && (board_type == BOARD_SIEMENS_PCI))
+ return sp5659_set_tv_freq (i2c, freq, pwr);
+ else if (demod_type == DEMOD_VES1993)
+ return tsa5059_set_tv_freq (i2c, freq);
+
+ return -EINVAL;
+}
+
+
+static int ves1x93_init (struct dvb_i2c_bus *i2c)
+{
+ int i;
+ int size;
+ u8 *init_1x93_wtab;
+
+ dprintk("%s: init chip\n", __FUNCTION__);
+
+ switch (demod_type) {
+ case DEMOD_VES1893:
+ init_1x93_tab = init_1893_tab;
+ init_1x93_wtab = init_1893_wtab;
+ size = sizeof(init_1893_tab);
+ if (board_type == BOARD_NOKIA_DBOX2)
+ init_1x93_tab[0x05] |= 0x20; /* invert PWM */
+ break;
+
+ case DEMOD_VES1993:
+ init_1x93_tab = init_1993_tab;
+ init_1x93_wtab = init_1993_wtab;
+ size = sizeof(init_1993_tab);
+ if (board_type == BOARD_SAGEM_DBOX2)
+ init_1x93_tab[0x05] |= 0x20; /* invert PWM */
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ for (i = 0; i < size; i++)
+ if (init_1x93_wtab[i])
+ ves1x93_writereg (i2c, i, init_1x93_tab[i]);
+
+ if (demod_type == DEMOD_VES1993) {
+ if (board_type == BOARD_NOKIA_DBOX2)
+ tuner_write(i2c, "\x06\x5c\x83\x60", 4);
+ else if (board_type == BOARD_SAGEM_DBOX2)
+ tuner_write(i2c, "\x25\x70\x92\x40", 4);
+ }
+
+ return 0;
+}
+
+
+static int ves1x93_clr_bit (struct dvb_i2c_bus *i2c)
+{
+ ves1x93_writereg (i2c, 0, init_1x93_tab[0] & 0xfe);
+ ves1x93_writereg (i2c, 0, init_1x93_tab[0]);
+ ves1x93_writereg (i2c, 3, 0x00);
+ return ves1x93_writereg (i2c, 3, init_1x93_tab[3]);
+}
+
+
+static int ves1x93_set_inversion (struct dvb_i2c_bus *i2c, fe_spectral_inversion_t inversion)
+{
+ u8 val;
+
+ /*
+ * inversion on/off are interchanged because i and q seem to
+ * be swapped on the hardware
+ */
+
+ switch (inversion) {
+ case INVERSION_OFF:
+ val = 0xc0;
+ break;
+ case INVERSION_ON:
+ val = 0x80;
+ break;
+ case INVERSION_AUTO:
+ val = 0x00;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* needs to be saved for FE_GET_FRONTEND */
+ init_1x93_tab[0x0c] = (init_1x93_tab[0x0c] & 0x3f) | val;
+
+ return ves1x93_writereg (i2c, 0x0c, init_1x93_tab[0x0c]);
+}
+
+
+static int ves1x93_set_fec (struct dvb_i2c_bus *i2c, fe_code_rate_t fec)
+{
+ if (fec == FEC_AUTO)
+ return ves1x93_writereg (i2c, 0x0d, 0x08);
+ else if (fec < FEC_1_2 || fec > FEC_8_9)
+ return -EINVAL;
+ else
+ return ves1x93_writereg (i2c, 0x0d, fec - FEC_1_2);
+}
+
+
+static fe_code_rate_t ves1x93_get_fec (struct dvb_i2c_bus *i2c)
+{
+ return FEC_1_2 + ((ves1x93_readreg (i2c, 0x0d) >> 4) & 0x7);
+}
+
+
+static int ves1x93_set_symbolrate (struct dvb_i2c_bus *i2c, u32 srate)
+{
+ u32 BDR;
+ u32 ratio;
+ u8 ADCONF, FCONF, FNR;
+ u32 BDRI;
+ u32 tmp;
+ u32 XIN, FIN;
+
+ dprintk("%s: srate == %d\n", __FUNCTION__, (unsigned int) srate);
+
+ switch (board_type) {
+ case BOARD_SIEMENS_PCI:
+ XIN = 90100000UL;
+ break;
+ case BOARD_NOKIA_DBOX2:
+ if (demod_type == DEMOD_VES1893)
+ XIN = 91000000UL;
+ else if (demod_type == DEMOD_VES1993)
+ XIN = 96000000UL;
+ else
+ return -EINVAL;
+ break;
+ case BOARD_SAGEM_DBOX2:
+ XIN = 92160000UL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (srate > XIN/2)
+ srate = XIN/2;
+
+ if (srate < 500000)
+ srate = 500000;
+
+#define MUL (1UL<<26)
+
+ FIN = (XIN + 6000) >> 4;
+
+ tmp = srate << 6;
+ ratio = tmp / FIN;
+
+ tmp = (tmp % FIN) << 8;
+ ratio = (ratio << 8) + tmp / FIN;
+
+ tmp = (tmp % FIN) << 8;
+ ratio = (ratio << 8) + tmp / FIN;
+
+ FNR = 0xff;
+
+ if (ratio < MUL/3) FNR = 0;
+ if (ratio < (MUL*11)/50) FNR = 1;
+ if (ratio < MUL/6) FNR = 2;
+ if (ratio < MUL/9) FNR = 3;
+ if (ratio < MUL/12) FNR = 4;
+ if (ratio < (MUL*11)/200) FNR = 5;
+ if (ratio < MUL/24) FNR = 6;
+ if (ratio < (MUL*27)/1000) FNR = 7;
+ if (ratio < MUL/48) FNR = 8;
+ if (ratio < (MUL*137)/10000) FNR = 9;
+
+ if (FNR == 0xff) {
+ ADCONF = 0x89;
+ FCONF = 0x80;
+ FNR = 0;
+ } else {
+ ADCONF = 0x81;
+ FCONF = 0x88 | (FNR >> 1) | ((FNR & 0x01) << 5);
+ /*FCONF = 0x80 | ((FNR & 0x01) << 5) | (((FNR > 1) & 0x03) << 3) | ((FNR >> 1) & 0x07);*/
+ }
+
+ BDR = (( (ratio << (FNR >> 1)) >> 4) + 1) >> 1;
+ BDRI = ( ((FIN << 8) / ((srate << (FNR >> 1)) >> 2)) + 1) >> 1;
+
+ dprintk("FNR= %d\n", FNR);
+ dprintk("ratio= %08x\n", (unsigned int) ratio);
+ dprintk("BDR= %08x\n", (unsigned int) BDR);
+ dprintk("BDRI= %02x\n", (unsigned int) BDRI);
+
+ if (BDRI > 0xff)
+ BDRI = 0xff;
+
+ ves1x93_writereg (i2c, 0x06, 0xff & BDR);
+ ves1x93_writereg (i2c, 0x07, 0xff & (BDR >> 8));
+ ves1x93_writereg (i2c, 0x08, 0x0f & (BDR >> 16));
+
+ ves1x93_writereg (i2c, 0x09, BDRI);
+ ves1x93_writereg (i2c, 0x20, ADCONF);
+ ves1x93_writereg (i2c, 0x21, FCONF);
+
+ if (srate < 6000000)
+ ves1x93_writereg (i2c, 0x05, init_1x93_tab[0x05] | 0x80);
+ else
+ ves1x93_writereg (i2c, 0x05, init_1x93_tab[0x05] & 0x7f);
+
+ ves1x93_writereg (i2c, 0x00, 0x00);
+ ves1x93_writereg (i2c, 0x00, 0x01);
+
+ /* ves1993 hates this, will lose lock */
+ if (demod_type != DEMOD_VES1993)
+ ves1x93_clr_bit (i2c);
+
+ return 0;
+}
+
+
+static int ves1x93_set_voltage (struct dvb_i2c_bus *i2c, fe_sec_voltage_t voltage)
+{
+ switch (voltage) {
+ case SEC_VOLTAGE_13:
+ return ves1x93_writereg (i2c, 0x1f, 0x20);
+ case SEC_VOLTAGE_18:
+ return ves1x93_writereg (i2c, 0x1f, 0x30);
+ case SEC_VOLTAGE_OFF:
+ return ves1x93_writereg (i2c, 0x1f, 0x00);
+ default:
+ return -EINVAL;
+ }
+}
+
+
+static int ves1x93_ioctl (struct dvb_frontend *fe, unsigned int cmd, void *arg)
+{
+ struct dvb_i2c_bus *i2c = fe->i2c;
+
+ switch (cmd) {
+ case FE_GET_INFO:
+ memcpy (arg, &ves1x93_info, sizeof(struct dvb_frontend_info));
+ break;
+
+ case FE_READ_STATUS:
+ {
+ fe_status_t *status = arg;
+ u8 sync = ves1x93_readreg (i2c, 0x0e);
+
+ *status = 0;
+
+ if (sync & 1)
+ *status |= FE_HAS_SIGNAL;
+
+ if (sync & 2)
+ *status |= FE_HAS_CARRIER;
+
+ if (sync & 4)
+ *status |= FE_HAS_VITERBI;
+
+ if (sync & 8)
+ *status |= FE_HAS_SYNC;
+
+ if ((sync & 0x1f) == 0x1f)
+ *status |= FE_HAS_LOCK;
+
+ break;
+ }
+
+ case FE_READ_BER:
+ {
+ u32 *ber = (u32 *) arg;
+
+ *ber = ves1x93_readreg (i2c, 0x15);
+ *ber |= (ves1x93_readreg (i2c, 0x16) << 8);
+ *ber |= ((ves1x93_readreg (i2c, 0x17) & 0x0F) << 16);
+ *ber *= 10;
+ break;
+ }
+
+ case FE_READ_SIGNAL_STRENGTH:
+ {
+ u8 signal = ~ves1x93_readreg (i2c, 0x0b);
+ *((u16*) arg) = (signal << 8) | signal;
+ break;
+ }
+
+ case FE_READ_SNR:
+ {
+ u8 snr = ~ves1x93_readreg (i2c, 0x1c);
+ *(u16*) arg = (snr << 8) | snr;
+ break;
+ }
+
+ case FE_READ_UNCORRECTED_BLOCKS:
+ {
+ *(u32*) arg = ves1x93_readreg (i2c, 0x18) & 0x7f;
+
+ if (*(u32*) arg == 0x7f)
+ *(u32*) arg = 0xffffffff; /* counter overflow... */
+
+ ves1x93_writereg (i2c, 0x18, 0x00); /* reset the counter */
+ ves1x93_writereg (i2c, 0x18, 0x80); /* dto. */
+ break;
+ }
+
+ case FE_SET_FRONTEND:
+ {
+ struct dvb_frontend_parameters *p = arg;
+
+ tuner_set_tv_freq (i2c, p->frequency, 0);
+ ves1x93_set_inversion (i2c, p->inversion);
+ ves1x93_set_fec (i2c, p->u.qpsk.fec_inner);
+ ves1x93_set_symbolrate (i2c, p->u.qpsk.symbol_rate);
+ break;
+ }
+
+ case FE_GET_FRONTEND:
+ {
+ struct dvb_frontend_parameters *p = arg;
+ int afc;
+
+ afc = ((int)((char)(ves1x93_readreg (i2c, 0x0a) << 1)))/2;
+ afc = (afc * (int)(p->u.qpsk.symbol_rate/1000/8))/16;
+
+ p->frequency -= afc;
+
+ /*
+ * inversion indicator is only valid
+ * if auto inversion was used
+ */
+ if (!(init_1x93_tab[0x0c] & 0x80))
+ p->inversion = (ves1x93_readreg (i2c, 0x0f) & 2) ?
+ INVERSION_OFF : INVERSION_ON;
+ p->u.qpsk.fec_inner = ves1x93_get_fec (i2c);
+ /* XXX FIXME: timing offset !! */
+ break;
+ }
+
+ case FE_SLEEP:
+ if (board_type == BOARD_SIEMENS_PCI)
+ ves1x93_writereg (i2c, 0x1f, 0x00); /* LNB power off */
+ return ves1x93_writereg (i2c, 0x00, 0x08);
+
+ case FE_INIT:
+ return ves1x93_init (i2c);
+
+ case FE_RESET:
+ return ves1x93_clr_bit (i2c);
+
+ case FE_SET_TONE:
+ return -EOPNOTSUPP; /* the ves1893 can generate the 22k */
+ /* let's implement this when we have */
+ /* a box that uses the 22K_0 pin... */
+
+ case FE_SET_VOLTAGE:
+ return ves1x93_set_voltage (i2c, (fe_sec_voltage_t) arg);
+
+ default:
+ return -EOPNOTSUPP;
+ };
+
+ return 0;
+}
+
+
+static int ves1x93_attach (struct dvb_i2c_bus *i2c)
+{
+ u8 identity = ves1x93_readreg(i2c, 0x1e);
+
+ switch (identity) {
+ case 0xdc: /* VES1893A rev1 */
+ case 0xdd: /* VES1893A rev2 */
+ demod_type = DEMOD_VES1893;
+ ves1x93_info.name[4] = '8';
+ break;
+ case 0xde: /* VES1993 */
+ demod_type = DEMOD_VES1993;
+ ves1x93_info.name[4] = '9';
+ break;
+ default:
+ dprintk("VES1x93 not found (identity %02x)\n", identity);
+ return -ENODEV;
+ }
+
+ return dvb_register_frontend (ves1x93_ioctl, i2c, NULL, &ves1x93_info);
+}
+
+
+static void ves1x93_detach (struct dvb_i2c_bus *i2c)
+{
+ dvb_unregister_frontend (ves1x93_ioctl, i2c);
+}
+
+
+static int __init init_ves1x93 (void)
+{
+ switch (board_type) {
+ case BOARD_NOKIA_DBOX2:
+ dprintk("%s: NOKIA_DBOX2\n", __FILE__);
+ break;
+ case BOARD_SAGEM_DBOX2:
+ dprintk("%s: SAGEM_DBOX2\n", __FILE__);
+ break;
+ case BOARD_SIEMENS_PCI:
+ dprintk("%s: SIEMENS_PCI\n", __FILE__);
+ break;
+ default:
+ return -EIO;
+ }
+
+ return dvb_register_i2c_device (THIS_MODULE, ves1x93_attach, ves1x93_detach);
+}
+
+
+static void __exit exit_ves1x93 (void)
+{
+ dvb_unregister_i2c_device (ves1x93_attach);
+}
+
+
+module_init(init_ves1x93);
+module_exit(exit_ves1x93);
+
+
+MODULE_DESCRIPTION("VES1x93 DVB-S Frontend");
+MODULE_AUTHOR("Ralph Metzler");
+MODULE_LICENSE("GPL");
+MODULE_PARM(debug,"i");
+MODULE_PARM(board_type,"i");
+
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