22 #ifndef LIBBSP_MSCAN_BASE_H 23 #define LIBBSP_MSCAN_BASE_H 27 #include <bsp/mpc5200.h> 37 #define MSCAN_BIT_RATE_MIN 10000 39 #define MSCAN_BIT_RATE_MAX 1000000 41 #define MSCAN_BIT_RATE_DEFAULT 125000 43 #define MSCAN_FILTER_NUMBER_MIN 0 45 #define MSCAN_FILTER_NUMBER_2 2 47 #define MSCAN_FILTER_NUMBER_4 4 49 #define MSCAN_FILTER_NUMBER_MAX 8 51 #define MSCAN_FILTER_ID_DEFAULT 0U 53 #define MSCAN_FILTER_MASK_DEFAULT 0xffffffffU 55 #define MSCAN_TRANSMIT_BUFFER_NUMBER 3 63 #define CTL0_RXFRM (1 << 7) 64 #define CTL0_RXACT (1 << 6) 65 #define CTL0_CSWAI (1 << 5) 66 #define CTL0_SYNCH (1 << 4) 67 #define CTL0_TIME (1 << 3) 68 #define CTL0_WUPE (1 << 2) 69 #define CTL0_SLPRQ (1 << 1) 70 #define CTL0_INITRQ (1 << 0) 80 #define CTL1_CANE (1 << 7) 81 #define CTL1_CLKSRC (1 << 6) 82 #define CTL1_LOOPB (1 << 5) 83 #define CTL1_LISTEN (1 << 4) 84 #define CTL1_WUPM (1 << 2) 85 #define CTL1_SLPAK (1 << 1) 86 #define CTL1_INITAK (1 << 0) 96 #define BTR0_SJW_MASK 0xc0 97 #define BTR0_BRP_MASK 0x3f 99 #define BTR0_SJW( btr0) ((btr0) << 6) 100 #define BTR0_BRP( btr0) ((btr0) << 0) 102 #define BTR0_GET_SJW( btr0) (((btr0) & BTR0_SJW_MASK) >> 6) 103 #define BTR0_GET_BRP( btr0) (((btr0) & BTR0_BRP_MASK) >> 0) 113 #define BTR1_SAMP_MASK 0x80 114 #define BTR1_TSEG1_MASK 0x0f 115 #define BTR1_TSEG2_MASK 0x70 117 #define BTR1_SAMP (1 << 7) 118 #define BTR1_TSEG1( btr1) ((btr1) << 0) 119 #define BTR1_TSEG2( btr1) ((btr1) << 4) 121 #define BTR1_GET_TSEG1( btr0) (((btr0) & BTR1_TSEG1_MASK) >> 0) 122 #define BTR1_GET_TSEG2( btr0) (((btr0) & BTR1_TSEG2_MASK) >> 4) 132 #define RFLG_WUPIF (1 << 7) 133 #define RFLG_CSCIF (1 << 6) 134 #define RFLG_RSTAT_MASK (3 << 4) 135 #define RFLG_RSTAT_OK (0 << 4) 136 #define RFLG_RSTAT_WRN (1 << 4) 137 #define RFLG_RSTAT_ERR (2 << 4) 138 #define RFLG_RSTAT_OFF (3 << 4) 139 #define RFLG_TSTAT_MASK (3 << 2) 140 #define RFLG_TSTAT_OK (0 << 2) 141 #define RFLG_TSTAT_WRN (1 << 2) 142 #define RFLG_TSTAT_ERR (2 << 2) 143 #define RFLG_TSTAT_OFF (3 << 2) 144 #define RFLG_OVRIF (1 << 1) 145 #define RFLG_RXF (1 << 0) 146 #define RFLG_GET_RX_STATE(rflg) (((rflg) >> 4) & 0x03) 147 #define RFLG_GET_TX_STATE(rflg) (((rflg) >> 2) & 0x03) 157 #define RIER_WUPIE (1 << 7) 158 #define RIER_CSCIE (1 << 6) 159 #define RIER_RSTAT(rier) ((rier) << 4) 160 #define RIER_TSTAT(rier) ((rier) << 2) 161 #define RIER_OVRIE (1 << 1) 162 #define RIER_RXFIE (1 << 0) 172 #define TFLG_TXE2 (1 << 2) 173 #define TFLG_TXE1 (1 << 1) 174 #define TFLG_TXE0 (1 << 0) 184 #define TIER_TXEI2 (1 << 2) 185 #define TIER_TXEI1 (1 << 1) 186 #define TIER_TXEI0 (1 << 0) 196 #define TARQ_ABTRQ2 (1 << 2) 197 #define TARQ_ABTRQ1 (1 << 1) 198 #define TARQ_ABTRQ0 (1 << 0) 208 #define TAAK_ABTRQ2 (1 << 2) 209 #define TAAK_ABTRQ1 (1 << 1) 210 #define TAAK_ABTRQ0 (1 << 0) 220 #define BSEL_TX2 (1 << 2) 221 #define BSEL_TX1 (1 << 1) 222 #define BSEL_TX0 (1 << 0) 232 #define IDAC_IDAM1 (1 << 5) 233 #define IDAC_IDAM0 (1 << 4) 234 #define IDAC_IDAM (IDAC_IDAM1 | IDAC_IDAM0) 235 #define IDAC_IDHIT( idac) ((idac) & 0x7) void mscan_initialization_mode_leave(volatile mscan *m, const mscan_context *context)
Leave initialization mode for the MSCAN module m.
Definition: mscan-base.c:240
void mscan_filter_clear(volatile mscan *m)
Sets the filter ID and mask registers of the MSCAN module m to default values.
Definition: mscan-base.c:338
void mscan_interrupts_disable(volatile mscan *m)
Disables all interrupts for the MSCAN module m.
Definition: mscan-base.c:208
unsigned mscan_filter_number(volatile mscan *m)
Returns the number of active filters of the MSCAN module m.
Definition: mscan-base.c:373
bool mscan_set_bit_rate(volatile mscan *m, unsigned bit_rate)
Sets the bit rate for the MSCAN module m to can_bit_rate in [bits/s].
Definition: mscan-base.c:143
void mscan_disable(volatile mscan *m)
Disables the MSCAN module m.
Definition: mscan-base.c:320
volatile uint8_t * mscan_id_acceptance_register(volatile mscan *m, unsigned i)
Returns the address of the CANIDAR register with index i of the MSCAN module m.
Definition: mscan-base.c:435
bool mscan_filter_operation(volatile mscan *m, bool set, unsigned index, uint32_t *id, uint32_t *mask)
Sets or gets the filter ID and mask in id and mask depending on set of MSCAN module m...
Definition: mscan-base.c:480
MSCAN context that has to be saved throughout the initialization mode.
Definition: mscan-base.h:248
bool mscan_enable(volatile mscan *m, unsigned bit_rate)
Enables and initializes the MSCAN module m.
Definition: mscan-base.c:287
unsigned context
Definition: tlb.h:108
bool mscan_set_filter_number(volatile mscan *m, unsigned number)
Sets the number of active filters of the MSCAN module m to number and returns true if number is valid...
Definition: mscan-base.c:396
void mscan_sleep_mode_leave(volatile mscan *m)
Leave sleep mode for the MSCAN module m.
Definition: mscan-base.c:271
void mscan_sleep_mode_enter(volatile mscan *m)
Enter sleep mode for the MSCAN module m.
Definition: mscan-base.c:262
void mscan_initialization_mode_enter(volatile mscan *m, mscan_context *context)
Enter initialization mode for the MSCAN module m.
Definition: mscan-base.c:219
struct mpc5200_mscan mscan
MSCAN registers.
Definition: mscan-base.h:242
volatile uint8_t * mscan_id_mask_register(volatile mscan *m, unsigned i)
Returns the address of the CANIDMR register with index i of the MSCAN module m.
Definition: mscan-base.c:457
void mscan_get_error_counters(volatile mscan *m, unsigned *rec, unsigned *tec)
Returns the receiver and transmitter error counter values in rec and tec of MSCAN module m...
Definition: mscan-base.c:536