diff options
Diffstat (limited to 'src/rfid_asic_rc632.c')
| -rw-r--r-- | src/rfid_asic_rc632.c | 43 |
1 files changed, 36 insertions, 7 deletions
diff --git a/src/rfid_asic_rc632.c b/src/rfid_asic_rc632.c index effe813..5a0f12f 100644 --- a/src/rfid_asic_rc632.c +++ b/src/rfid_asic_rc632.c @@ -240,7 +240,7 @@ rc632_timer_set(struct rfid_asic_handle *handle, u_int64_t timeout) { int ret; - u_int8_t prescaler, divisor; + u_int8_t prescaler, divisor, irq; timeout *= TIMER_RELAX_FACTOR; @@ -255,7 +255,10 @@ rc632_timer_set(struct rfid_asic_handle *handle, RC632_TMR_START_TX_END|RC632_TMR_STOP_RX_BEGIN); /* clear timer irq bit */ - ret = rc632_set_bits(handle, RC632_REG_INTERRUPT_RQ, RC632_IRQ_TIMER); + ret = rc632_clear_irqs(handle, RC632_IRQ_TIMER); + + /* enable timer IRQ */ + ret |= rc632_reg_write(handle, RC632_REG_INTERRUPT_EN, RC632_IRQ_SET | RC632_IRQ_TIMER); ret |= rc632_reg_write(handle, RC632_REG_TIMER_RELOAD, divisor); @@ -268,6 +271,18 @@ static int rc632_wait_idle_timer(struct rfid_asic_handle *handle) int ret; u_int8_t stat, irq, cmd; + ret = rc632_reg_read(handle, RC632_REG_INTERRUPT_EN, &irq); + if (ret < 0) + return ret; + DEBUGP_INTERRUPT_FLAG("irq_en",irq); + + ret = rc632_reg_write(handle, RC632_REG_INTERRUPT_EN, RC632_IRQ_SET + | RC632_IRQ_TIMER + | RC632_IRQ_IDLE + | RC632_IRQ_RX ); + if (ret < 0) + return ret; + while (1) { rc632_reg_read(handle, RC632_REG_PRIMARY_STATUS, &stat); DEBUGP_STATUS_FLAG(stat); @@ -278,17 +293,20 @@ static int rc632_wait_idle_timer(struct rfid_asic_handle *handle) if (err & (RC632_ERR_FLAG_COL_ERR | RC632_ERR_FLAG_PARITY_ERR | RC632_ERR_FLAG_FRAMING_ERR | - RC632_ERR_FLAG_CRC_ERR)) + /* FIXME: why get we CRC errors in CL2 anticol at iso14443a operation with mifare UL? */ + /* RC632_ERR_FLAG_CRC_ERR | */ + 0)) return -EIO; } if (stat & RC632_STAT_IRQ) { ret = rc632_reg_read(handle, RC632_REG_INTERRUPT_RQ, &irq); if (ret < 0) return ret; - DEBUGP_INTERRUPT_FLAG(irq); + DEBUGP_INTERRUPT_FLAG("irq_rq",irq); if (irq & RC632_IRQ_TIMER && !(irq & RC632_IRQ_RX)) { DEBUGP("timer expired before RX!!\n"); + rc632_clear_irqs(handle, RC632_IRQ_TIMER); return -ETIMEDOUT; } } @@ -297,8 +315,10 @@ static int rc632_wait_idle_timer(struct rfid_asic_handle *handle) if (ret < 0) return ret; - if (cmd == 0) + if (cmd == 0) { + rc632_clear_irqs(handle, RC632_IRQ_RX); return 0; + } /* poll every millisecond */ usleep(1000); @@ -333,7 +353,7 @@ rc632_wait_idle(struct rfid_asic_handle *handle, u_int64_t timeout) /* check if IRQ has occurred (IRQ flag set)*/ if (foo & RC632_STAT_IRQ) { ret = rc632_reg_read(handle, RC632_REG_INTERRUPT_RQ, &foo); - DEBUGP_INTERRUPT_FLAG(foo); + DEBUGP_INTERRUPT_FLAG("irq_rq",foo); /* clear all interrupts */ rc632_clear_irqs(handle, 0xff); } @@ -1578,6 +1598,12 @@ static struct register_file icode1_std_script[] = { }, { .reg = RC632_REG_CRC_PRESET_MSB, .val = 0xff, + /* }, { + .reg = RC632_REG_INTERRUPT_EN, + .val = RC632_INT_IDLE | + RC632_INT_TIMER | + RC632_INT_RX | + RC632_INT_TX, */ } }; @@ -1732,7 +1758,7 @@ rc632_iso15693_transceive_ac(struct rfid_asic_handle *handle, const struct iso15693_anticol_cmd *acf, unsigned int acf_len, struct iso15693_anticol_resp *resp, - unsigned int *rx_len, char *bit_of_col) + unsigned int *rx_len, unsigned char *bit_of_col) { u_int8_t error_flag, boc; //u_int8_t rx_len; @@ -1757,12 +1783,15 @@ rc632_iso15693_transceive_ac(struct rfid_asic_handle *handle, return ret; DEBUGP_ERROR_FLAG(error_flag); + //FIXME: check for framing and crc errors... if (error_flag & RC632_ERR_FLAG_COL_ERR) { /* retrieve bit of collission */ ret = rc632_reg_read(handle, RC632_REG_COLL_POS, &boc); if (ret < 0) return ret; *bit_of_col = boc; + } else { + *bit_of_col = 0; } return 0; |