-static void af9033_stat_work(struct work_struct *work)
-{
- struct af9033_dev *dev = container_of(work, struct af9033_dev, stat_work.work);
- struct dtv_frontend_properties *c = &dev->fe.dtv_property_cache;
- int ret, tmp, i, len;
- u8 u8tmp, buf[7];
-
- dev_dbg(&dev->client->dev, "\n");
-
- /* signal strength */
- if (dev->fe_status & FE_HAS_SIGNAL) {
- if (dev->is_af9035) {
- ret = af9033_rd_reg(dev, 0x80004a, &u8tmp);
- tmp = -u8tmp * 1000;
- } else {
- ret = af9033_rd_reg(dev, 0x8000f7, &u8tmp);
- tmp = (u8tmp - 100) * 1000;
- }
- if (ret)
- goto err;
-
- c->strength.len = 1;
- c->strength.stat[0].scale = FE_SCALE_DECIBEL;
- c->strength.stat[0].svalue = tmp;
- } else {
- c->strength.len = 1;
- c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
- }
-
- /* CNR */
- if (dev->fe_status & FE_HAS_VITERBI) {
- u32 snr_val;
- const struct val_snr *snr_lut;
-
- /* read value */
- ret = af9033_rd_regs(dev, 0x80002c, buf, 3);
- if (ret)
- goto err;
-
- snr_val = (buf[2] << 16) | (buf[1] << 8) | (buf[0] << 0);
-
- /* read superframe number */
- ret = af9033_rd_reg(dev, 0x80f78b, &u8tmp);
- if (ret)
- goto err;
-
- if (u8tmp)
- snr_val /= u8tmp;
-
- /* read current transmission mode */
- ret = af9033_rd_reg(dev, 0x80f900, &u8tmp);
- if (ret)
- goto err;
-
- switch ((u8tmp >> 0) & 3) {
- case 0:
- snr_val *= 4;
- break;
- case 1:
- snr_val *= 1;
- break;
- case 2:
- snr_val *= 2;
- break;
- default:
- goto err_schedule_delayed_work;
- }
-
- /* read current modulation */
- ret = af9033_rd_reg(dev, 0x80f903, &u8tmp);
- if (ret)
- goto err;
-
- switch ((u8tmp >> 0) & 3) {
- case 0:
- len = ARRAY_SIZE(qpsk_snr_lut);
- snr_lut = qpsk_snr_lut;
- break;
- case 1:
- len = ARRAY_SIZE(qam16_snr_lut);
- snr_lut = qam16_snr_lut;
- break;
- case 2:
- len = ARRAY_SIZE(qam64_snr_lut);
- snr_lut = qam64_snr_lut;
- break;
- default:
- goto err_schedule_delayed_work;
- }
-
- for (i = 0; i < len; i++) {
- tmp = snr_lut[i].snr * 1000;
- if (snr_val < snr_lut[i].val)
- break;
- }
-
- c->cnr.len = 1;
- c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
- c->cnr.stat[0].svalue = tmp;
- } else {
- c->cnr.len = 1;
- c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
- }
-
- /* UCB/PER/BER */
- if (dev->fe_status & FE_HAS_LOCK) {
- /* outer FEC, 204 byte packets */
- u16 abort_packet_count, rsd_packet_count;
- /* inner FEC, bits */
- u32 rsd_bit_err_count;
-
- /*
- * Packet count used for measurement is 10000
- * (rsd_packet_count). Maybe it should be increased?
- */
-
- ret = af9033_rd_regs(dev, 0x800032, buf, 7);
- if (ret)
- goto err;
-
- abort_packet_count = (buf[1] << 8) | (buf[0] << 0);
- rsd_bit_err_count = (buf[4] << 16) | (buf[3] << 8) | buf[2];
- rsd_packet_count = (buf[6] << 8) | (buf[5] << 0);
-
- dev->error_block_count += abort_packet_count;
- dev->total_block_count += rsd_packet_count;
- dev->post_bit_error += rsd_bit_err_count;
- dev->post_bit_count += rsd_packet_count * 204 * 8;
-
- c->block_count.len = 1;
- c->block_count.stat[0].scale = FE_SCALE_COUNTER;
- c->block_count.stat[0].uvalue = dev->total_block_count;
-
- c->block_error.len = 1;
- c->block_error.stat[0].scale = FE_SCALE_COUNTER;
- c->block_error.stat[0].uvalue = dev->error_block_count;
-
- c->post_bit_count.len = 1;
- c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
- c->post_bit_count.stat[0].uvalue = dev->post_bit_count;
-
- c->post_bit_error.len = 1;
- c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
- c->post_bit_error.stat[0].uvalue = dev->post_bit_error;
- }
-
-err_schedule_delayed_work:
- schedule_delayed_work(&dev->stat_work, msecs_to_jiffies(2000));
- return;
-err:
- dev_dbg(&dev->client->dev, "failed=%d\n", ret);
-}
-