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path: root/drivers/media/dvb/frontends/mt312.c
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Diffstat (limited to 'drivers/media/dvb/frontends/mt312.c')
-rw-r--r--drivers/media/dvb/frontends/mt312.c151
1 files changed, 117 insertions, 34 deletions
diff --git a/drivers/media/dvb/frontends/mt312.c b/drivers/media/dvb/frontends/mt312.c
index 1638301fbd6..081ca3398c7 100644
--- a/drivers/media/dvb/frontends/mt312.c
+++ b/drivers/media/dvb/frontends/mt312.c
@@ -1,7 +1,8 @@
/*
- Driver for Zarlink VP310/MT312 Satellite Channel Decoder
+ Driver for Zarlink VP310/MT312/ZL10313 Satellite Channel Decoder
Copyright (C) 2003 Andreas Oberritter <obi@linuxtv.org>
+ Copyright (C) 2008 Matthias Schwarzott <zzam@gentoo.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
@@ -43,7 +44,8 @@ struct mt312_state {
struct dvb_frontend frontend;
u8 id;
- u8 frequency;
+ unsigned long xtal;
+ u8 freq_mult;
};
static int debug;
@@ -53,12 +55,11 @@ static int debug;
printk(KERN_DEBUG "mt312: " args); \
} while (0)
-#define MT312_SYS_CLK 90000000UL /* 90 MHz */
-#define MT312_LPOWER_SYS_CLK 60000000UL /* 60 MHz */
#define MT312_PLL_CLK 10000000UL /* 10 MHz */
+#define MT312_PLL_CLK_10_111 10111000UL /* 10.111 MHz */
static int mt312_read(struct mt312_state *state, const enum mt312_reg_addr reg,
- void *buf, const size_t count)
+ u8 *buf, const size_t count)
{
int ret;
struct i2c_msg msg[2];
@@ -76,7 +77,7 @@ static int mt312_read(struct mt312_state *state, const enum mt312_reg_addr reg,
ret = i2c_transfer(state->i2c, msg, 2);
if (ret != 2) {
- printk(KERN_ERR "%s: ret == %d\n", __FUNCTION__, ret);
+ printk(KERN_ERR "%s: ret == %d\n", __func__, ret);
return -EREMOTEIO;
}
@@ -84,7 +85,7 @@ static int mt312_read(struct mt312_state *state, const enum mt312_reg_addr reg,
int i;
dprintk("R(%d):", reg & 0x7f);
for (i = 0; i < count; i++)
- printk(" %02x", ((const u8 *) buf)[i]);
+ printk(" %02x", buf[i]);
printk("\n");
}
@@ -92,7 +93,7 @@ static int mt312_read(struct mt312_state *state, const enum mt312_reg_addr reg,
}
static int mt312_write(struct mt312_state *state, const enum mt312_reg_addr reg,
- const void *src, const size_t count)
+ const u8 *src, const size_t count)
{
int ret;
u8 buf[count + 1];
@@ -102,7 +103,7 @@ static int mt312_write(struct mt312_state *state, const enum mt312_reg_addr reg,
int i;
dprintk("W(%d):", reg & 0x7f);
for (i = 0; i < count; i++)
- printk(" %02x", ((const u8 *) src)[i]);
+ printk(" %02x", src[i]);
printk("\n");
}
@@ -117,7 +118,7 @@ static int mt312_write(struct mt312_state *state, const enum mt312_reg_addr reg,
ret = i2c_transfer(state->i2c, &msg, 1);
if (ret != 1) {
- dprintk("%s: ret == %d\n", __FUNCTION__, ret);
+ dprintk("%s: ret == %d\n", __func__, ret);
return -EREMOTEIO;
}
@@ -209,7 +210,7 @@ static int mt312_get_symbol_rate(struct mt312_state *state, u32 *sr)
dprintk("sym_rat_op=%d dec_ratio=%d\n",
sym_rat_op, dec_ratio);
dprintk("*sr(manual) = %lu\n",
- (((MT312_PLL_CLK * 8192) / (sym_rat_op + 8192)) *
+ (((state->xtal * 8192) / (sym_rat_op + 8192)) *
2) - dec_ratio);
}
@@ -242,7 +243,7 @@ static int mt312_initfe(struct dvb_frontend *fe)
/* wake up */
ret = mt312_writereg(state, CONFIG,
- (state->frequency == 60 ? 0x88 : 0x8c));
+ (state->freq_mult == 6 ? 0x88 : 0x8c));
if (ret < 0)
return ret;
@@ -265,12 +266,37 @@ static int mt312_initfe(struct dvb_frontend *fe)
return ret;
}
+ switch (state->id) {
+ case ID_ZL10313:
+ /* enable ADC */
+ ret = mt312_writereg(state, GPP_CTRL, 0x80);
+ if (ret < 0)
+ return ret;
+
+ /* configure ZL10313 for optimal ADC performance */
+ buf[0] = 0x80;
+ buf[1] = 0xB0;
+ ret = mt312_write(state, HW_CTRL, buf, 2);
+ if (ret < 0)
+ return ret;
+
+ /* enable MPEG output and ADCs */
+ ret = mt312_writereg(state, HW_CTRL, 0x00);
+ if (ret < 0)
+ return ret;
+
+ ret = mt312_writereg(state, MPEG_CTRL, 0x00);
+ if (ret < 0)
+ return ret;
+
+ break;
+ }
+
/* SYS_CLK */
- buf[0] = mt312_div((state->frequency == 60 ? MT312_LPOWER_SYS_CLK :
- MT312_SYS_CLK) * 2, 1000000);
+ buf[0] = mt312_div(state->xtal * state->freq_mult * 2, 1000000);
/* DISEQC_RATIO */
- buf[1] = mt312_div(MT312_PLL_CLK, 15000 * 4);
+ buf[1] = mt312_div(state->xtal, 22000 * 4);
ret = mt312_write(state, SYS_CLK, buf, sizeof(buf));
if (ret < 0)
@@ -280,7 +306,17 @@ static int mt312_initfe(struct dvb_frontend *fe)
if (ret < 0)
return ret;
- ret = mt312_writereg(state, OP_CTRL, 0x53);
+ /* different MOCLK polarity */
+ switch (state->id) {
+ case ID_ZL10313:
+ buf[0] = 0x33;
+ break;
+ default:
+ buf[0] = 0x53;
+ break;
+ }
+
+ ret = mt312_writereg(state, OP_CTRL, buf[0]);
if (ret < 0)
return ret;
@@ -323,6 +359,9 @@ static int mt312_send_master_cmd(struct dvb_frontend *fe,
if (ret < 0)
return ret;
+ /* is there a better way to wait for message to be transmitted */
+ msleep(100);
+
/* set DISEQC_MODE[2:0] to zero if a return message is expected */
if (c->msg[0] & 0x02) {
ret = mt312_writereg(state, DISEQC_MODE, (diseqc_mode & 0x40));
@@ -383,11 +422,16 @@ static int mt312_set_voltage(struct dvb_frontend *fe, const fe_sec_voltage_t v)
{
struct mt312_state *state = fe->demodulator_priv;
const u8 volt_tab[3] = { 0x00, 0x40, 0x00 };
+ u8 val;
if (v > SEC_VOLTAGE_OFF)
return -EINVAL;
- return mt312_writereg(state, DISEQC_MODE, volt_tab[v]);
+ val = volt_tab[v];
+ if (state->config->voltage_inverted)
+ val ^= 0x40;
+
+ return mt312_writereg(state, DISEQC_MODE, val);
}
static int mt312_read_status(struct dvb_frontend *fe, fe_status_t *s)
@@ -463,7 +507,7 @@ static int mt312_read_snr(struct dvb_frontend *fe, u16 *snr)
int ret;
u8 buf[2];
- ret = mt312_read(state, M_SNR_H, &buf, sizeof(buf));
+ ret = mt312_read(state, M_SNR_H, buf, sizeof(buf));
if (ret < 0)
return ret;
@@ -478,7 +522,7 @@ static int mt312_read_ucblocks(struct dvb_frontend *fe, u32 *ubc)
int ret;
u8 buf[2];
- ret = mt312_read(state, RS_UBC_H, &buf, sizeof(buf));
+ ret = mt312_read(state, RS_UBC_H, buf, sizeof(buf));
if (ret < 0)
return ret;
@@ -499,7 +543,7 @@ static int mt312_set_frontend(struct dvb_frontend *fe,
{ 0x00, 0x01, 0x02, 0x04, 0x3f, 0x08, 0x10, 0x20, 0x3f, 0x3f };
const u8 inv_tab[3] = { 0x00, 0x40, 0x80 };
- dprintk("%s: Freq %d\n", __FUNCTION__, p->frequency);
+ dprintk("%s: Freq %d\n", __func__, p->frequency);
if ((p->frequency < fe->ops.info.frequency_min)
|| (p->frequency > fe->ops.info.frequency_max))
@@ -532,17 +576,17 @@ static int mt312_set_frontend(struct dvb_frontend *fe,
return ret;
if (p->u.qpsk.symbol_rate >= 30000000) {
/* Note that 30MS/s should use 90MHz */
- if ((config_val & 0x0c) == 0x08) {
+ if (state->freq_mult == 6) {
/* We are running 60MHz */
- state->frequency = 90;
+ state->freq_mult = 9;
ret = mt312_initfe(fe);
if (ret < 0)
return ret;
}
} else {
- if ((config_val & 0x0c) == 0x0C) {
+ if (state->freq_mult == 9) {
/* We are running 90MHz */
- state->frequency = 60;
+ state->freq_mult = 6;
ret = mt312_initfe(fe);
if (ret < 0)
return ret;
@@ -551,6 +595,7 @@ static int mt312_set_frontend(struct dvb_frontend *fe,
break;
case ID_MT312:
+ case ID_ZL10313:
break;
default:
@@ -616,11 +661,29 @@ static int mt312_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
{
struct mt312_state *state = fe->demodulator_priv;
- if (enable) {
- return mt312_writereg(state, GPP_CTRL, 0x40);
- } else {
- return mt312_writereg(state, GPP_CTRL, 0x00);
+ u8 val = 0x00;
+ int ret;
+
+ switch (state->id) {
+ case ID_ZL10313:
+ ret = mt312_readreg(state, GPP_CTRL, &val);
+ if (ret < 0)
+ goto error;
+
+ /* preserve this bit to not accidently shutdown ADC */
+ val &= 0x80;
+ break;
}
+
+ if (enable)
+ val |= 0x40;
+ else
+ val &= ~0x40;
+
+ ret = mt312_writereg(state, GPP_CTRL, val);
+
+error:
+ return ret;
}
static int mt312_sleep(struct dvb_frontend *fe)
@@ -634,6 +697,18 @@ static int mt312_sleep(struct dvb_frontend *fe)
if (ret < 0)
return ret;
+ if (state->id == ID_ZL10313) {
+ /* reset ADC */
+ ret = mt312_writereg(state, GPP_CTRL, 0x00);
+ if (ret < 0)
+ return ret;
+
+ /* full shutdown of ADCs, mpeg bus tristated */
+ ret = mt312_writereg(state, HW_CTRL, 0x0d);
+ if (ret < 0)
+ return ret;
+ }
+
ret = mt312_readreg(state, CONFIG, &config);
if (ret < 0)
return ret;
@@ -661,6 +736,7 @@ static void mt312_release(struct dvb_frontend *fe)
kfree(state);
}
+#define MT312_SYS_CLK 90000000UL /* 90 MHz */
static struct dvb_frontend_ops vp310_mt312_ops = {
.info = {
@@ -668,8 +744,8 @@ static struct dvb_frontend_ops vp310_mt312_ops = {
.type = FE_QPSK,
.frequency_min = 950000,
.frequency_max = 2150000,
- .frequency_stepsize = (MT312_PLL_CLK / 1000) / 128,
- .symbol_rate_min = MT312_SYS_CLK / 128,
+ .frequency_stepsize = (MT312_PLL_CLK / 1000) / 128, /* FIXME: adjust freq to real used xtal */
+ .symbol_rate_min = MT312_SYS_CLK / 128, /* FIXME as above */
.symbol_rate_max = MT312_SYS_CLK / 2,
.caps =
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
@@ -726,14 +802,21 @@ struct dvb_frontend *vp310_mt312_attach(const struct mt312_config *config,
switch (state->id) {
case ID_VP310:
strcpy(state->frontend.ops.info.name, "Zarlink VP310 DVB-S");
- state->frequency = 90;
+ state->xtal = MT312_PLL_CLK;
+ state->freq_mult = 9;
break;
case ID_MT312:
strcpy(state->frontend.ops.info.name, "Zarlink MT312 DVB-S");
- state->frequency = 60;
+ state->xtal = MT312_PLL_CLK;
+ state->freq_mult = 6;
+ break;
+ case ID_ZL10313:
+ strcpy(state->frontend.ops.info.name, "Zarlink ZL10313 DVB-S");
+ state->xtal = MT312_PLL_CLK_10_111;
+ state->freq_mult = 9;
break;
default:
- printk(KERN_WARNING "Only Zarlink VP310/MT312"
+ printk(KERN_WARNING "Only Zarlink VP310/MT312/ZL10313"
" are supported chips.\n");
goto error;
}
@@ -749,7 +832,7 @@ EXPORT_SYMBOL(vp310_mt312_attach);
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
-MODULE_DESCRIPTION("Zarlink VP310/MT312 DVB-S Demodulator driver");
+MODULE_DESCRIPTION("Zarlink VP310/MT312/ZL10313 DVB-S Demodulator driver");
MODULE_AUTHOR("Andreas Oberritter <obi@linuxtv.org>");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-14 14:41:56 +0000