struct sp887x_state {
-
struct i2c_adapter* i2c;
-
struct dvb_frontend_ops ops;
-
const struct sp887x_config* config;
-
struct dvb_frontend frontend;
/* demodulator private data */
*/
static int sp887x_initial_setup (struct dvb_frontend* fe, const struct firmware *fw)
{
- struct sp887x_state* state = (struct sp887x_state*) fe->demodulator_priv;
+ struct sp887x_state* state = fe->demodulator_priv;
u8 buf [BLOCKSIZE+2];
int i;
int fw_size = fw->size;
}
static void sp887x_correct_offsets (struct sp887x_state* state,
- struct dvb_frontend_parameters *p,
- int actual_freq)
+ struct dvb_frontend_parameters *p,
+ int actual_freq)
{
static const u32 srate_correction [] = { 1879617, 4544878, 8098561 };
int bw_index = p->u.ofdm.bandwidth - BANDWIDTH_8_MHZ;
sp887x_writereg(state, 0x30a, frequency_shift & 0xfff);
}
-
-
-
-
-
-
-
-
-
-
-
-
-
static int sp887x_setup_frontend_parameters (struct dvb_frontend* fe,
- struct dvb_frontend_parameters *p)
+ struct dvb_frontend_parameters *p)
{
- struct sp887x_state* state = (struct sp887x_state*) fe->demodulator_priv;
+ struct sp887x_state* state = fe->demodulator_priv;
int actual_freq, err;
u16 val, reg0xc05;
}
static int sp887x_read_status(struct dvb_frontend* fe, fe_status_t* status)
- {
- struct sp887x_state* state = (struct sp887x_state*) fe->demodulator_priv;
+{
+ struct sp887x_state* state = fe->demodulator_priv;
u16 snr12 = sp887x_readreg(state, 0xf16);
u16 sync0x200 = sp887x_readreg(state, 0x200);
u16 sync0xf17 = sp887x_readreg(state, 0xf17);
- *status = 0;
+ *status = 0;
- if (snr12 > 0x00f)
- *status |= FE_HAS_SIGNAL;
+ if (snr12 > 0x00f)
+ *status |= FE_HAS_SIGNAL;
- //if (sync0x200 & 0x004)
- // *status |= FE_HAS_SYNC | FE_HAS_CARRIER;
+ //if (sync0x200 & 0x004)
+ // *status |= FE_HAS_SYNC | FE_HAS_CARRIER;
- //if (sync0x200 & 0x008)
- // *status |= FE_HAS_VITERBI;
+ //if (sync0x200 & 0x008)
+ // *status |= FE_HAS_VITERBI;
- if ((sync0xf17 & 0x00f) == 0x002) {
- *status |= FE_HAS_LOCK;
- *status |= FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_CARRIER;
- }
+ if ((sync0xf17 & 0x00f) == 0x002) {
+ *status |= FE_HAS_LOCK;
+ *status |= FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_CARRIER;
+ }
- if (sync0x200 & 0x001) { /* tuner adjustment requested...*/
- int steps = (sync0x200 >> 4) & 0x00f;
- if (steps & 0x008)
- steps = -steps;
- dprintk("sp887x: implement tuner adjustment (%+i steps)!!\n",
- steps);
- }
+ if (sync0x200 & 0x001) { /* tuner adjustment requested...*/
+ int steps = (sync0x200 >> 4) & 0x00f;
+ if (steps & 0x008)
+ steps = -steps;
+ dprintk("sp887x: implement tuner adjustment (%+i steps)!!\n",
+ steps);
+ }
return 0;
- }
+}
static int sp887x_read_ber(struct dvb_frontend* fe, u32* ber)
- {
- struct sp887x_state* state = (struct sp887x_state*) fe->demodulator_priv;
+{
+ struct sp887x_state* state = fe->demodulator_priv;
*ber = (sp887x_readreg(state, 0xc08) & 0x3f) |
(sp887x_readreg(state, 0xc07) << 6);
sp887x_writereg(state, 0xc08, 0x000);
sp887x_writereg(state, 0xc07, 0x000);
- if (*ber >= 0x3fff0)
- *ber = ~0;
+ if (*ber >= 0x3fff0)
+ *ber = ~0;
return 0;
- }
+}
static int sp887x_read_signal_strength(struct dvb_frontend* fe, u16* strength)
- {
- struct sp887x_state* state = (struct sp887x_state*) fe->demodulator_priv;
+{
+ struct sp887x_state* state = fe->demodulator_priv;
u16 snr12 = sp887x_readreg(state, 0xf16);
- u32 signal = 3 * (snr12 << 4);
+ u32 signal = 3 * (snr12 << 4);
*strength = (signal < 0xffff) ? signal : 0xffff;
return 0;
- }
+}
static int sp887x_read_snr(struct dvb_frontend* fe, u16* snr)
- {
- struct sp887x_state* state = (struct sp887x_state*) fe->demodulator_priv;
+{
+ struct sp887x_state* state = fe->demodulator_priv;
u16 snr12 = sp887x_readreg(state, 0xf16);
*snr = (snr12 << 4) | (snr12 >> 8);
- return 0;
- }
+ return 0;
+}
static int sp887x_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
{
- struct sp887x_state* state = (struct sp887x_state*) fe->demodulator_priv;
+ struct sp887x_state* state = fe->demodulator_priv;
*ucblocks = sp887x_readreg(state, 0xc0c);
if (*ucblocks == 0xfff)
*ucblocks = ~0;
- return 0;
+ return 0;
}
static int sp887x_sleep(struct dvb_frontend* fe)
{
- struct sp887x_state* state = (struct sp887x_state*) fe->demodulator_priv;
+ struct sp887x_state* state = fe->demodulator_priv;
/* tristate TS output and disable interface pins */
sp887x_writereg(state, 0xc18, 0x000);
return 0;
- }
+}
static int sp887x_init(struct dvb_frontend* fe)
{
- struct sp887x_state* state = (struct sp887x_state*) fe->demodulator_priv;
+ struct sp887x_state* state = fe->demodulator_priv;
const struct firmware *fw = NULL;
int ret;
if (!state->initialised) {
- /* request the firmware, this will block until someone uploads it */
+ /* request the firmware, this will block until someone uploads it */
printk("sp887x: waiting for firmware upload (%s)...\n", SP887X_DEFAULT_FIRMWARE);
ret = state->config->request_firmware(fe, &fw, SP887X_DEFAULT_FIRMWARE);
- if (ret) {
- printk("sp887x: no firmware upload (timeout or file not found?)\n");
+ if (ret) {
+ printk("sp887x: no firmware upload (timeout or file not found?)\n");
return ret;
- }
+ }
ret = sp887x_initial_setup(fe, fw);
- if (ret) {
- printk("sp887x: writing firmware to device failed\n");
+ if (ret) {
+ printk("sp887x: writing firmware to device failed\n");
release_firmware(fw);
return ret;
- }
+ }
printk("sp887x: firmware upload complete\n");
state->initialised = 1;
}
static void sp887x_release(struct dvb_frontend* fe)
{
- struct sp887x_state* state = (struct sp887x_state*) fe->demodulator_priv;
+ struct sp887x_state* state = fe->demodulator_priv;
kfree(state);
}
struct sp887x_state* state = NULL;
/* allocate memory for the internal state */
- state = (struct sp887x_state*) kmalloc(sizeof(struct sp887x_state), GFP_KERNEL);
+ state = kmalloc(sizeof(struct sp887x_state), GFP_KERNEL);
if (state == NULL) goto error;
/* setup the state */
return &state->frontend;
error:
- if (state) kfree(state);
+ kfree(state);
return NULL;
}
git://git.onelab.eu / linux-2.6.git / blobdiff