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Code Issues Releases Wiki Activity

improved PLL setup for modulator

This commit is contained in:
Ralph Metzler 2017-01-22 02:05:44 +01:00
parent f6c7586815
commit 28a2aaa653
1 changed files with 59 additions and 11 deletions
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70
ddbridge/ddbridge-mod.c
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@ -310,9 +310,8 @@ int ddbridge_mod_output_start(struct ddb_output *output)
u32 Symbolrate = mod->symbolrate;
u32 ctrl;
mod_calc_rateinc(mod);
/*PCRIncrement = RoundPCR(PCRIncrement);*/
/*PCRDecrement = RoundPCR(PCRDecrement);*/
if (dev->link[0].info->version < 3)
mod_calc_rateinc(mod);
mod->LastInPacketCount = 0;
mod->LastOutPacketCount = 0;
@ -415,12 +414,55 @@ static int mod_write_max2871(struct ddb *dev, u32 val)
return 0;
}
static u8 max2871_fsm[6] = {
0x00730040, 0x600080A1, 0x510061C2, 0x010000CB, 0x6199003C, 0x60440005,
};
static u8 max2871_sdr[6] = {
0x007A8098, 0x600080C9, 0x510061C2, 0x010000CB, 0x6199003C, 0x60440005
};
static int mod_setup_max2871_2(struct ddb *dev, u8 *reg)
{
int status = 0;
int i, j;
u32 val;
ddbwritel(dev, MAX2871_CONTROL_CE, MAX2871_CONTROL);
msleep(30);
for (i = 0; i < 2; i++) {
for (j = 5; j >= 0; j--) {
val = reg[j];
if (j ==4)
val &= 0xFFFFFEDF;
status = mod_write_max2871(dev, reg[j]);
if (status)
break;
msleep(30);
}
}
if (status == 0) {
u32 ControlReg;
if (reg[3] & (1 << 24))
msleep(100);
ControlReg = ddbreadl(dev, MAX2871_CONTROL);
if ((ControlReg & MAX2871_CONTROL_LOCK) == 0)
status = -EIO;
status = mod_write_max2871(dev, reg[4]);
}
return status;
}
static int mod_setup_max2871(struct ddb *dev)
{
int status = 0;
int i;
ddbwritel(dev, MAX2871_CONTROL_CE, MAX2871_CONTROL);
msleep(30);
for (i = 0; i < 2; i++) {
status = mod_write_max2871(dev, 0x00440005);
if (status)
@ -441,11 +483,11 @@ static int mod_setup_max2871(struct ddb *dev)
if (status)
break;
msleep(30);
} while(0);
}
if (status == 0) {
u32 ControlReg = ddbreadl(dev, MAX2871_CONTROL);
if ((ControlReg & MAX2871_CONTROL_LOCK) == 0)
status = -EIO;
}
@ -461,7 +503,7 @@ static int mod_fsm_setup(struct ddb *dev, u32 FrequencyPlan, u32 MaxUsedChannels
u32 tmp = ddbreadl(dev, FSM_STATUS);
if ((tmp & FSM_STATUS_READY) == 0) {
status = mod_setup_max2871(dev);
status = mod_setup_max2871_2(dev, max2871_fsm);
if (status)
return status;
ddbwritel(dev, FSM_CMD_RESET, FSM_CONTROL);
@ -1484,8 +1526,6 @@ void ddbridge_mod_rate_handler(unsigned long data)
static int mod_prop_proc(struct ddb_mod *mod, struct dtv_property *tvp)
{
struct ddb *dev = mod->port->dev;
switch(tvp->cmd) {
case MODULATOR_SYMBOL_RATE:
return mod_set_symbolrate(mod, tvp->u.data);
@ -1597,6 +1637,11 @@ static int mod_init_2(struct ddb *dev, u32 Frequency)
dev->mod_base.frequency = Frequency;
status = mod_fsm_setup(dev, 0, 0);
if (status) {
pr_err("FSM setup failed!\n");
return -1;
}
for (i = 0; i < streams; i++) {
struct ddb_mod *mod = &dev->mod[i];
@ -1618,10 +1663,13 @@ static int mod_init_2(struct ddb *dev, u32 Frequency)
static int mod_init_3(struct ddb *dev, u32 Frequency)
{
int status, i;
int status, i, ret = 0;
//printk("%s\n", __func__);
return 0;
mod_set_vga(dev, 64);
ret = mod_setup_max2871_2(dev, max2871_sdr);
if (ret)
pr_err("DDBridge: PLL setup failed\n");
return ret;
}
int ddbridge_mod_init(struct ddb *dev)