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Diffstat (limited to 'linux/drivers/media/dvb/frontends/mt2060.c')
-rw-r--r--linux/drivers/media/dvb/frontends/mt2060.c58
1 files changed, 40 insertions, 18 deletions
diff --git a/linux/drivers/media/dvb/frontends/mt2060.c b/linux/drivers/media/dvb/frontends/mt2060.c
index 728bc2cd5..aa92c1c51 100644
--- a/linux/drivers/media/dvb/frontends/mt2060.c
+++ b/linux/drivers/media/dvb/frontends/mt2060.c
@@ -81,31 +81,29 @@ static int mt2060_writeregs(struct mt2060_state *state,u8 *buf, u8 len)
return 0;
}
-// Initialization : VGAG=01, V1CSE=1
+// Initialisation sequences
+// LNABAND=3, NUM1=0x3C, DIV1=0x74, NUM2=0x1080, DIV2=0x49
static u8 mt2060_config1[] = {
- REG_VGAG,
- 0x31, 0xff
+ REG_LO1C1,
+ 0x3F, 0x74, 0x00, 0x08, 0x93
};
-// Initialization : FMCG=2, GP2=0, GP1=0
+// FMCG=2, GP2=0, GP1=0
static u8 mt2060_config2[] = {
REG_MISC_CTRL,
- 0x20
+ 0x20, 0x1E, 0x30, 0xff, 0x80, 0xff, 0x00, 0x2c, 0x42
};
-// The power-up values are :
-// LNABAND=3, NUM1=0x3C, DIV1=0x74, NUM2=0x1080, DIV2=0x49 --> LO1=1.871GHz LO2=1.176250GHz
+// VGAG=3, V1CSE=1
static u8 mt2060_config3[] = {
- REG_LO1C1,
- 0x3F, 0x74, 0x00, 0x08, 0x93
+ REG_VGAG,
+ 0x33
};
int mt2060_init(struct mt2060_state *state)
{
if (mt2060_writeregs(state,mt2060_config1,sizeof(mt2060_config1)))
return -EREMOTEIO;
- if (mt2060_writeregs(state,mt2060_config2,sizeof(mt2060_config2)))
- return -EREMOTEIO;
if (mt2060_writeregs(state,mt2060_config3,sizeof(mt2060_config3)))
return -EREMOTEIO;
return 0;
@@ -166,22 +164,28 @@ static int mt2060_spurcheck(u32 lo1,u32 lo2,u32 if2)
}
#endif
-#define IF1 (1220*1000) // IF1 frequency = 1.220 GHz
#define IF2 36150 // IF2 frequency = 36.150 MHz
#define FREF 16000 // Quartz oscillator 16 MHz
int mt2060_set(struct mt2060_state *state, struct dvb_frontend_parameters *fep)
{
int ret=0;
+ int i=0;
u32 freq;
u8 lnaband;
u32 f_lo1,f_lo2;
u32 div1,num1,div2,num2;
u8 b[8];
+ u32 if1;
+
+ if1 = state->if1_freq;
+ b[0] = REG_LO1B1;
+ b[1] = 0xFF;
+ mt2060_writeregs(state,b,2);
freq = fep->frequency / 1000; // Hz -> kHz
- f_lo1 = freq + IF1;
+ f_lo1 = freq + if1 * 1000;
f_lo1 = (f_lo1/250)*250;
f_lo2 = f_lo1 - freq - IF2;
f_lo2 = (f_lo2/50)*50;
@@ -218,11 +222,22 @@ int mt2060_set(struct mt2060_state *state, struct dvb_frontend_parameters *fep)
b[4] = num2 >> 4;
b[5] = ((num2 >>12) & 1) | (div2 << 1);
+ dprintk("IF1: %dMHz",(int)if1);
dprintk("PLL freq: %d f_lo1: %d f_lo2: %d (kHz)",(int)freq,(int)f_lo1,(int)f_lo2);
dprintk("PLL div1: %d num1: %d div2: %d num2: %d",(int)div1,(int)num1,(int)div2,(int)num2);
dprintk("PLL [1..5]: %2x %2x %2x %2x %2x",(int)b[1],(int)b[2],(int)b[3],(int)b[4],(int)b[5]);
mt2060_writeregs(state,b,6);
+
+ //Waits for pll lock or timeout
+ i=0;
+ do {
+ mt2060_readreg(state,REG_LO_STATUS,b);
+ if ((b[0] & 0x88)==0x88) break;
+ msleep(4);
+ i++;
+ } while (i<10);
+
return ret;
}
EXPORT_SYMBOL(mt2060_set);
@@ -232,28 +247,34 @@ static void mt2060_calibrate(struct mt2060_state *state)
{
u8 b = 0;
int i = 0;
+
+ if (mt2060_writeregs(state,mt2060_config1,sizeof(mt2060_config1)))
+ return;
+ if (mt2060_writeregs(state,mt2060_config2,sizeof(mt2060_config2)))
+ return;
+
do {
b |= (1 << 6); // FM1SS;
mt2060_writereg(state, REG_LO2C1,b);
- msleep(25);
+ msleep(20);
if (i == 0) {
b |= (1 << 7); // FM1CA;
mt2060_writereg(state, REG_LO2C1,b);
b &= ~(1 << 7); // FM1CA;
- msleep(25);
+ msleep(20);
}
b &= ~(1 << 6); // FM1SS
mt2060_writereg(state, REG_LO2C1,b);
- msleep(25);
+ msleep(20);
i++;
} while (i < 9);
i = 0;
while (i++ < 10 && mt2060_readreg(state, REG_MISC_STAT, &b) == 0 && (b & (1 << 6)) == 0)
- msleep(25);
+ msleep(20);
if (i < 10) {
mt2060_readreg(state, REG_FM_FREQ, &state->fmfreq); // now find out, what is fmreq used for :)
@@ -263,13 +284,14 @@ static void mt2060_calibrate(struct mt2060_state *state)
}
/* This functions tries to identify a MT2060 tuner by reading the PART/REV register. This is hasty. */
-int mt2060_attach(struct mt2060_state *state, struct mt2060_config *config, struct i2c_adapter *i2c)
+int mt2060_attach(struct mt2060_state *state, struct mt2060_config *config, struct i2c_adapter *i2c,u16 if1)
{
u8 id = 0;
memset(state,0,sizeof(struct mt2060_state));
state->config = config;
state->i2c = i2c;
+ state->if1_freq = if1;
if (mt2060_readreg(state,REG_PART_REV,&id) != 0)
return -ENODEV;