/*
- Support for B2C2/BBTI Technisat Air2PC - ATSC
+ Support for B2C2/BBTI Technisat Air2PC - ATSC
Copyright (C) 2004 Taylor Jacob <rtjacob@earthlink.net>
u8 buf2 [256],x;
int err;
struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf2, .len = len + 1 };
-
+
buf2[0] = reg;
for (x = 0 ; x < len ; x++)
buf2[x+1] = buf[x];
return 0;
}
-static u16 nxt2002_crc(u16 crc, u8 c)
+static u16 nxt2002_crc(u16 crc, u8 c)
{
u8 i;
u16 input = (u16) c & 0xFF;
-
+
input<<=8;
for(i=0 ;i<8 ;i++) {
if((crc ^ input) & 0x8000)
if ((buf & 0x02) == 0)
return 0;
-
+
dprintk("Error writing multireg register %02X\n",reg);
return 0;
buf[0] = 0x80;
i2c_writebytes(state,0x22,buf,1);
- while (counter < 20) {
+ while (counter < 20) {
i2c_readbytes(state,0x31,buf,1);
- if (buf[0] & 0x40)
+ if (buf[0] & 0x40)
return;
msleep(10);
counter++;
}
dprintk("Timeout waiting for micro to stop.. This is ok after firmware upload\n");
- return;
+ return;
}
static void nxt2002_microcontroller_start (struct nxt2002_state* state)
/* write UC Opmode to begin transfer */
buf = 0x80;
i2c_writebytes(state,0x21,&buf,1);
-
+
while (count < 20) {
i2c_readbytes(state,0x21,&buf,1);
if ((buf & 0x80)== 0x00)
static int nxt2002_load_firmware (struct dvb_frontend* fe, const struct firmware *fw)
{
- struct nxt2002_state* state = (struct nxt2002_state*) fe->demodulator_priv;
+ struct nxt2002_state* state = fe->demodulator_priv;
u8 buf[256],written = 0,chunkpos = 0;
- u16 rambase,position,crc = 0;
+ u16 rambase,position,crc = 0;
dprintk("%s\n", __FUNCTION__);
dprintk("Firmware is %zu bytes\n",fw->size);
/* Get the RAM base for this nxt2002 */
i2c_readbytes(state,0x10,buf,1);
-
if (buf[0] & 0x10)
rambase = 0x1000;
else
buf[0] = 0x80;
i2c_writebytes(state,0x2B,buf,1);
-
for (position = 0; position < fw->size ; position++) {
if (written == 0) {
crc = 0;
/* write starting address */
i2c_writebytes(state,0x29,buf,3);
}
- written++;
+ written++;
chunkpos++;
if ((written % 4) == 0)
crc = nxt2002_crc(crc,fw->data[position]);
-
if ((written == 255) || (position+1 == fw->size)) {
/* write remaining bytes of firmware */
i2c_writebytes(state, chunkpos+4-(written %4),
written %4);
buf[0] = crc << 8;
buf[1] = crc & 0xFF;
-
+
/* write crc */
i2c_writebytes(state,0x2C,buf,2);
return 0;
};
-
static int nxt2002_setup_frontend_parameters (struct dvb_frontend* fe,
struct dvb_frontend_parameters *p)
{
- struct nxt2002_state* state = (struct nxt2002_state*) fe->demodulator_priv;
+ struct nxt2002_state* state = fe->demodulator_priv;
u32 freq = 0;
- u16 tunerfreq = 0;
+ u16 tunerfreq = 0;
u8 buf[4];
- freq = 44000 + ( p->frequency / 1000 );
+ freq = 44000 + ( p->frequency / 1000 );
dprintk("freq = %d p->frequency = %d\n",freq,p->frequency);
tunerfreq = freq * 24/4000;
-
+
buf[0] = (tunerfreq >> 8) & 0x7F;
buf[1] = (tunerfreq & 0xFF);
-
+
if (p->frequency <= 214000000) {
buf[2] = 0x84 + (0x06 << 3);
buf[3] = (p->frequency <= 172000000) ? 0x01 : 0x02;
buf[2] = 0x84 + (0x0E << 3);
buf[3] = 0x08;
} else {
- buf[2] = 0x84 + (0x0F << 3);
+ buf[2] = 0x84 + (0x0F << 3);
buf[3] = 0x02;
}
nxt2002_agc_reset(state);
/* set target power level */
- buf[0] = 0x70;
+ switch (p->u.vsb.modulation) {
+ case QAM_64:
+ case QAM_256:
+ buf[0] = 0x74;
+ break;
+ case VSB_8:
+ buf[0] = 0x70;
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
i2c_writebytes(state,0x42,buf,1);
/* configure sdm */
nxt2002_writereg_multibyte(state,0x58,buf,2);
/* write sdmx input */
- buf[0] = 0x60;
+ switch (p->u.vsb.modulation) {
+ case QAM_64:
+ buf[0] = 0x68;
+ break;
+ case QAM_256:
+ buf[0] = 0x64;
+ break;
+ case VSB_8:
+ buf[0] = 0x60;
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
buf[1] = 0x00;
nxt2002_writereg_multibyte(state,0x5C,buf,2);
i2c_writebytes(state,0x41,buf,1);
/* write agc ucgp0 */
- buf[0] = 0x00;
+ switch (p->u.vsb.modulation) {
+ case QAM_64:
+ buf[0] = 0x02;
+ break;
+ case QAM_256:
+ buf[0] = 0x03;
+ break;
+ case VSB_8:
+ buf[0] = 0x00;
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
i2c_writebytes(state,0x30,buf,1);
/* write agc control reg */
nxt2002_microcontroller_start(state);
- /* adjacent channel detection should be done here, but I don't
+ /* adjacent channel detection should be done here, but I don't
have any stations with this need so I cannot test it */
return 0;
static int nxt2002_read_status(struct dvb_frontend* fe, fe_status_t* status)
{
- struct nxt2002_state* state = (struct nxt2002_state*) fe->demodulator_priv;
+ struct nxt2002_state* state = fe->demodulator_priv;
u8 lock;
i2c_readbytes(state,0x31,&lock,1);
*status |= FE_HAS_SIGNAL;
*status |= FE_HAS_CARRIER;
*status |= FE_HAS_VITERBI;
- *status |= FE_HAS_SYNC;
+ *status |= FE_HAS_SYNC;
*status |= FE_HAS_LOCK;
}
return 0;
static int nxt2002_read_ber(struct dvb_frontend* fe, u32* ber)
{
- struct nxt2002_state* state = (struct nxt2002_state*) fe->demodulator_priv;
+ struct nxt2002_state* state = fe->demodulator_priv;
u8 b[3];
- nxt2002_readreg_multibyte(state,0xE6,b,3);
+ nxt2002_readreg_multibyte(state,0xE6,b,3);
*ber = ((b[0] << 8) + b[1]) * 8;
-
+
return 0;
}
static int nxt2002_read_signal_strength(struct dvb_frontend* fe, u16* strength)
{
- struct nxt2002_state* state = (struct nxt2002_state*) fe->demodulator_priv;
+ struct nxt2002_state* state = fe->demodulator_priv;
u8 b[2];
u16 temp = 0;
i2c_writebytes(state,0xA1,b,1);
/* get multreg val */
- nxt2002_readreg_multibyte(state,0xA6,b,2);
+ nxt2002_readreg_multibyte(state,0xA6,b,2);
temp = (b[0] << 8) | b[1];
*strength = ((0x7FFF - temp) & 0x0FFF) * 16;
static int nxt2002_read_snr(struct dvb_frontend* fe, u16* snr)
{
- struct nxt2002_state* state = (struct nxt2002_state*) fe->demodulator_priv;
+ struct nxt2002_state* state = fe->demodulator_priv;
u8 b[2];
u16 temp = 0, temp2;
u32 snrdb = 0;
i2c_writebytes(state,0xA1,b,1);
/* get multreg val from 0xA6 */
- nxt2002_readreg_multibyte(state,0xA6,b,2);
+ nxt2002_readreg_multibyte(state,0xA6,b,2);
temp = (b[0] << 8) | b[1];
temp2 = 0x7FFF - temp;
static int nxt2002_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
{
- struct nxt2002_state* state = (struct nxt2002_state*) fe->demodulator_priv;
+ struct nxt2002_state* state = fe->demodulator_priv;
u8 b[3];
-
- nxt2002_readreg_multibyte(state,0xE6,b,3);
+ nxt2002_readreg_multibyte(state,0xE6,b,3);
*ucblocks = b[2];
return 0;
static int nxt2002_init(struct dvb_frontend* fe)
{
- struct nxt2002_state* state = (struct nxt2002_state*) fe->demodulator_priv;
+ struct nxt2002_state* state = fe->demodulator_priv;
const struct firmware *fw;
int ret;
u8 buf[2];
if (!state->initialised) {
/* request the firmware, this will block until someone uploads it */
- printk("nxt2002: Waiting for firmware upload...\n");
+ printk("nxt2002: Waiting for firmware upload (%s)...\n", NXT2002_DEFAULT_FIRMWARE);
ret = state->config->request_firmware(fe, &fw, NXT2002_DEFAULT_FIRMWARE);
printk("nxt2002: Waiting for firmware upload(2)...\n");
if (ret) {
release_firmware(fw);
return ret;
}
+ printk("nxt2002: firmware upload complete\n");
/* Put the micro into reset */
nxt2002_microcontroller_stop(state);
-
+
/* ensure transfer is complete */
buf[0]=0;
i2c_writebytes(state,0x2B,buf,1);
i2c_writebytes(state,0x08,buf,1);
/* write agc sdm configure */
- buf[0] = 0xF1;
+ buf[0] = 0xF1;
i2c_writebytes(state,0x57,buf,1);
/* write mod output format */
- buf[0] = 0x20;
+ buf[0] = 0x20;
i2c_writebytes(state,0x09,buf,1);
/* write fec mpeg mode */
static void nxt2002_release(struct dvb_frontend* fe)
{
- struct nxt2002_state* state = (struct nxt2002_state*) fe->demodulator_priv;
+ struct nxt2002_state* state = fe->demodulator_priv;
kfree(state);
}
u8 buf [] = {0,0,0,0,0};
/* allocate memory for the internal state */
- state = (struct nxt2002_state*) kmalloc(sizeof(struct nxt2002_state), GFP_KERNEL);
+ state = kmalloc(sizeof(struct nxt2002_state), GFP_KERNEL);
if (state == NULL) goto error;
/* setup the state */
/* Check the first 5 registers to ensure this a revision we can handle */
i2c_readbytes(state, 0x00, buf, 5);
- if (buf[0] != 0x04) goto error; /* device id */
- if (buf[1] != 0x02) goto error; /* fab id */
- if (buf[2] != 0x11) goto error; /* month */
- if (buf[3] != 0x20) goto error; /* year msb */
- if (buf[4] != 0x00) goto error; /* year lsb */
+ if (buf[0] != 0x04) goto error; /* device id */
+ if (buf[1] != 0x02) goto error; /* fab id */
+ if (buf[2] != 0x11) goto error; /* month */
+ if (buf[3] != 0x20) goto error; /* year msb */
+ if (buf[4] != 0x00) goto error; /* year lsb */
/* create dvb_frontend */
state->frontend.ops = &state->ops;
return &state->frontend;
error:
- if (state) kfree(state);
+ kfree(state);
return NULL;
}
.name = "Nextwave nxt2002 VSB/QAM frontend",
.type = FE_ATSC,
.frequency_min = 54000000,
- .frequency_max = 803000000,
+ .frequency_max = 860000000,
/* stepsize is just a guess */
- .frequency_stepsize = 166666,
+ .frequency_stepsize = 166666,
.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_FEC_AUTO |
- FE_CAN_8VSB
+ FE_CAN_8VSB | FE_CAN_QAM_64 | FE_CAN_QAM_256
},
.release = nxt2002_release,
git://git.onelab.eu / linux-2.6.git / blobdiff