diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/gen5200/mscan/mscan.h')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/gen5200/mscan/mscan.h | 78 |
1 files changed, 67 insertions, 11 deletions
diff --git a/c/src/lib/libbsp/powerpc/gen5200/mscan/mscan.h b/c/src/lib/libbsp/powerpc/gen5200/mscan/mscan.h index 7b70a55d25..8e0eef6a36 100644 --- a/c/src/lib/libbsp/powerpc/gen5200/mscan/mscan.h +++ b/c/src/lib/libbsp/powerpc/gen5200/mscan/mscan.h @@ -26,6 +26,11 @@ extern "C" { #endif +#define MIN_NO_OF_TQ 7 +#define NO_OF_TABLE_ENTRIES 4 +#define TSEG_1 1 +#define TSEG_2 2 +#define SJW 3 #define MSCAN_MAX_DATA_BYTES 8 #define MSCAN_RX_BUFF_NUM 4 @@ -34,13 +39,19 @@ extern "C" { #define MSCAN_A_DEV_NAME "/dev/mscana" #define MSCAN_B_DEV_NAME "/dev/mscanb" +#define MSCAN_0_DEV_NAME "/dev/mscan0" +#define MSCAN_1_DEV_NAME "/dev/mscan1" #define MSCAN_A 0 #define MSCAN_B 1 -#define MSCAN_INITIALIZED_MODE 0 -#define MSCAN_INIT_NORMAL_MODE 1 -#define MSCAN_NORMAL_MODE 2 -#define MSCAN_SLEEP_MODE 4 +#define MSCAN_NON_INITIALIZED_MODE 0 +#define MSCAN_INITIALIZED_MODE 1 +#define MSCAN_INIT_NORMAL_MODE 2 +#define MSCAN_NORMAL_MODE 4 +#define MSCAN_SLEEP_MODE 8 + +#define CAN_BIT_RATE_MAX 1000000 +#define CAN_BIT_RATE_MIN 100000 #define CAN_BIT_RATE 100000 #define CAN_MAX_NO_OF_TQ 25 @@ -54,7 +65,10 @@ extern "C" { #define MSCAN_GET_RX_ID_MASK 4 #define MSCAN_SET_TX_ID 5 #define MSCAN_GET_TX_ID 6 + #define TOUCAN_MSCAN_INIT 7 +#define MSCAN_SET_BAUDRATE 8 +#define SET_TX_BUF_NO 9 #define MSCAN_RX_BUFF_NOACTIVE (0 << 4) #define MSCAN_RX_BUFF_EMPTY (1 << 6) @@ -62,8 +76,7 @@ extern "C" { #define MSCAN_RX_BUFF_OVERRUN ((MSCAN_RX_BUFF_EMPTY) | (MSCAN_RX_BUFF_FULL)) #define MSCAN_RX_BUFF_BUSY (1 << 4) -#define MSCAN_A_MBUFF_MASK 0x07 -#define MSCAN_B_MBUFF_MASK 0x07 +#define MSCAN_MBUFF_MASK 0x07 #define MSCAN_TX_BUFF0 (1 << 0) #define MSCAN_TX_BUFF1 (1 << 1) @@ -175,7 +188,7 @@ extern "C" { #define SET_IDR7(u16) SET_IDR1(u16) #define GET_IDR0(u16) ((uint16_t) ((u16) << 3)) -#define GET_IDR1(u16) ((uint16_t)((u16) >> 5)) +#define GET_IDR1(u16) ((uint16_t)(((u16) >> 5)&0x0007)) #define GET_IDR2(u16) GET_IDR0(u16) #define GET_IDR3(u16) GET_IDR1(u16) @@ -186,8 +199,31 @@ extern "C" { #define GET_IDR6(u16) GET_IDR0(u16) #define GET_IDR7(u16) GET_IDR1(u16) -#define NO_OF_MSCAN_A_RX_BUFF 20 -#define NO_OF_MSCAN_B_RX_BUFF 20 +#define SET_IDMR0(u16) ((uint8_t)((u16) >> 3)) +#define SET_IDMR1(u16) ((uint8_t)((((u16) & 0x0007) << 5))|0x001F) + +#define SET_IDMR2(u16) SET_IDMR0(u16) +#define SET_IDMR3(u16) SET_IDMR1(u16) + +#define SET_IDMR4(u16) SET_IDMR0(u16) +#define SET_IDMR5(u16) SET_IDMR1(u16) + +#define SET_IDMR6(u16) SET_IDMR0(u16) +#define SET_IDMR7(u16) SET_IDMR1(u16) + +#define GET_IDMR0(u16) ((uint16_t) ((u16) << 3)) +#define GET_IDMR1(u16) ((uint16_t)(((u16) >> 5)&0x0007)) + +#define GET_IDMR2(u16) GET_IDMR0(u16) +#define GET_IDMR3(u16) GET_IDMR1(u16) + +#define GET_IDMR4(u16) GET_IDMR0(u16) +#define GET_IDMR5(u16) GET_IDMR1(u16) + +#define GET_IDMR6(u16) GET_IDMR0(u16) +#define GET_IDMR7(u16) GET_IDMR1(u16) + +#define NO_OF_MSCAN_RX_BUFF 20 #define MSCAN_MESSAGE_SIZE(size) (((size)%CPU_ALIGNMENT) ? (((size) + CPU_ALIGNMENT)-((size) + CPU_ALIGNMENT)%CPU_ALIGNMENT) : (size)) #define TX_BUFFER_0 0 @@ -199,6 +235,11 @@ extern "C" { #define RX_BUFFER_2 2 #define RX_BUFFER_3 3 +#define NO_OF_MSCAN_TX_BUFF 20 +#define RING_BUFFER_EMPTY(rbuff) ((((rbuff)->head) == ((rbuff)->tail)) ? TRUE : FALSE) +#define RING_BUFFER_FULL(rbuff) ((((rbuff)->head) == ((rbuff)->tail)) ? TRUE : FALSE) + + typedef struct _mscan_handle { uint8_t mscan_channel; @@ -212,22 +253,33 @@ struct can_message uint16_t mess_time_stamp; uint8_t mess_data[MSCAN_MAX_DATA_BYTES]; uint8_t mess_len; + uint32_t toucan_tx_id; }; +volatile struct ring_buf + { + volatile struct can_message *buf_ptr; + volatile struct can_message *head_ptr; + volatile struct can_message *tail_ptr; + }; + struct mpc5200_rx_cntrl { struct can_message can_rx_message[MSCAN_RX_BUFF_NUM]; }; - struct mscan_channel_info { volatile struct mpc5200_mscan *regs; uint32_t int_rx_err; - rtems_id rx_qid; + rtems_id rx_qid; uint32_t rx_qname; + rtems_id tx_rb_sid; + uint32_t tx_rb_sname; uint8_t id_extended; uint8_t mode; + uint8_t tx_buf_no; + volatile struct ring_buf tx_ring_buf; }; struct mscan_rx_parms @@ -248,6 +300,8 @@ struct mscan_ctrl_parms uint32_t ctrl_id; uint32_t ctrl_id_mask; uint8_t ctrl_reg_no; + uint8_t ctrl_tx_buf_no; + uint32_t ctrl_can_bitrate; void (*toucan_cb_fnc)(int16_t); }; @@ -304,6 +358,8 @@ void mpc5200_mscan_perform_init_mode_settings(volatile struct mpc5200_mscan *); void mpc5200_mscan_perform_normal_mode_settings(volatile struct mpc5200_mscan *); rtems_status_code mpc5200_mscan_set_mode(rtems_device_minor_number, uint8_t); rtems_status_code mscan_channel_initialize(rtems_device_major_number, rtems_device_minor_number); +uint8_t prescaler_calculation(uint32_t, uint32_t, uint8_t *); +void mpc5200_mscan_perform_bit_time_settings(volatile struct mpc5200_mscan *, uint32_t, uint32_t); #ifdef __cplusplus |