mirror of
https://github.com/candle-usb/candleLight_fw.git
synced 2025-02-04 06:12:55 +08:00
193 lines
6.4 KiB
C
193 lines
6.4 KiB
C
#pragma once
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#define u32 uint32_t
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#define u8 uint8_t
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#define GSUSB_ENDPOINT_IN 0x81
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#define GSUSB_ENDPOINT_OUT 0x02
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#define GS_CAN_MODE_NORMAL 0
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#define GS_CAN_MODE_LISTEN_ONLY (1<<0)
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#define GS_CAN_MODE_LOOP_BACK (1<<1)
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#define GS_CAN_MODE_TRIPLE_SAMPLE (1<<2)
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#define GS_CAN_MODE_ONE_SHOT (1<<3)
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#define GS_CAN_FEATURE_LISTEN_ONLY (1<<0)
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#define GS_CAN_FEATURE_LOOP_BACK (1<<1)
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#define GS_CAN_FEATURE_TRIPLE_SAMPLE (1<<2)
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#define GS_CAN_FEATURE_ONE_SHOT (1<<3)
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#define GS_CAN_FLAG_OVERFLOW 1
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#define CAN_EFF_FLAG 0x80000000U /* EFF/SFF is set in the MSB */
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#define CAN_RTR_FLAG 0x40000000U /* remote transmission request */
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#define CAN_ERR_FLAG 0x20000000U /* error message frame */
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#define CAN_ERR_DLC 8 /* dlc for error message frames */
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/* error class (mask) in can_id */
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#define CAN_ERR_TX_TIMEOUT 0x00000001U /* TX timeout (by netdevice driver) */
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#define CAN_ERR_LOSTARB 0x00000002U /* lost arbitration / data[0] */
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#define CAN_ERR_CRTL 0x00000004U /* controller problems / data[1] */
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#define CAN_ERR_PROT 0x00000008U /* protocol violations / data[2..3] */
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#define CAN_ERR_TRX 0x00000010U /* transceiver status / data[4] */
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#define CAN_ERR_ACK 0x00000020U /* received no ACK on transmission */
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#define CAN_ERR_BUSOFF 0x00000040U /* bus off */
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#define CAN_ERR_BUSERROR 0x00000080U /* bus error (may flood!) */
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#define CAN_ERR_RESTARTED 0x00000100U /* controller restarted */
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/* arbitration lost in bit ... / data[0] */
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#define CAN_ERR_LOSTARB_UNSPEC 0x00 /* unspecified */
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/* else bit number in bitstream */
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/* error status of CAN-controller / data[1] */
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#define CAN_ERR_CRTL_UNSPEC 0x00 /* unspecified */
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#define CAN_ERR_CRTL_RX_OVERFLOW 0x01 /* RX buffer overflow */
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#define CAN_ERR_CRTL_TX_OVERFLOW 0x02 /* TX buffer overflow */
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#define CAN_ERR_CRTL_RX_WARNING 0x04 /* reached warning level for RX errors */
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#define CAN_ERR_CRTL_TX_WARNING 0x08 /* reached warning level for TX errors */
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#define CAN_ERR_CRTL_RX_PASSIVE 0x10 /* reached error passive status RX */
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#define CAN_ERR_CRTL_TX_PASSIVE 0x20 /* reached error passive status TX */
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/* (at least one error counter exceeds */
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/* the protocol-defined level of 127) */
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#define CAN_ERR_CRTL_ACTIVE 0x40 /* recovered to error active state */
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/* error in CAN protocol (type) / data[2] */
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#define CAN_ERR_PROT_UNSPEC 0x00 /* unspecified */
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#define CAN_ERR_PROT_BIT 0x01 /* single bit error */
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#define CAN_ERR_PROT_FORM 0x02 /* frame format error */
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#define CAN_ERR_PROT_STUFF 0x04 /* bit stuffing error */
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#define CAN_ERR_PROT_BIT0 0x08 /* unable to send dominant bit */
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#define CAN_ERR_PROT_BIT1 0x10 /* unable to send recessive bit */
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#define CAN_ERR_PROT_OVERLOAD 0x20 /* bus overload */
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#define CAN_ERR_PROT_ACTIVE 0x40 /* active error announcement */
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#define CAN_ERR_PROT_TX 0x80 /* error occurred on transmission */
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/* error in CAN protocol (location) / data[3] */
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#define CAN_ERR_PROT_LOC_UNSPEC 0x00 /* unspecified */
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#define CAN_ERR_PROT_LOC_SOF 0x03 /* start of frame */
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#define CAN_ERR_PROT_LOC_ID28_21 0x02 /* ID bits 28 - 21 (SFF: 10 - 3) */
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#define CAN_ERR_PROT_LOC_ID20_18 0x06 /* ID bits 20 - 18 (SFF: 2 - 0 )*/
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#define CAN_ERR_PROT_LOC_SRTR 0x04 /* substitute RTR (SFF: RTR) */
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#define CAN_ERR_PROT_LOC_IDE 0x05 /* identifier extension */
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#define CAN_ERR_PROT_LOC_ID17_13 0x07 /* ID bits 17-13 */
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#define CAN_ERR_PROT_LOC_ID12_05 0x0F /* ID bits 12-5 */
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#define CAN_ERR_PROT_LOC_ID04_00 0x0E /* ID bits 4-0 */
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#define CAN_ERR_PROT_LOC_RTR 0x0C /* RTR */
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#define CAN_ERR_PROT_LOC_RES1 0x0D /* reserved bit 1 */
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#define CAN_ERR_PROT_LOC_RES0 0x09 /* reserved bit 0 */
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#define CAN_ERR_PROT_LOC_DLC 0x0B /* data length code */
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#define CAN_ERR_PROT_LOC_DATA 0x0A /* data section */
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#define CAN_ERR_PROT_LOC_CRC_SEQ 0x08 /* CRC sequence */
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#define CAN_ERR_PROT_LOC_CRC_DEL 0x18 /* CRC delimiter */
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#define CAN_ERR_PROT_LOC_ACK 0x19 /* ACK slot */
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#define CAN_ERR_PROT_LOC_ACK_DEL 0x1B /* ACK delimiter */
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#define CAN_ERR_PROT_LOC_EOF 0x1A /* end of frame */
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#define CAN_ERR_PROT_LOC_INTERM 0x12 /* intermission */
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/* error status of CAN-transceiver / data[4] */
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/* CANH CANL */
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#define CAN_ERR_TRX_UNSPEC 0x00 /* 0000 0000 */
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#define CAN_ERR_TRX_CANH_NO_WIRE 0x04 /* 0000 0100 */
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#define CAN_ERR_TRX_CANH_SHORT_TO_BAT 0x05 /* 0000 0101 */
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#define CAN_ERR_TRX_CANH_SHORT_TO_VCC 0x06 /* 0000 0110 */
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#define CAN_ERR_TRX_CANH_SHORT_TO_GND 0x07 /* 0000 0111 */
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#define CAN_ERR_TRX_CANL_NO_WIRE 0x40 /* 0100 0000 */
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#define CAN_ERR_TRX_CANL_SHORT_TO_BAT 0x50 /* 0101 0000 */
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#define CAN_ERR_TRX_CANL_SHORT_TO_VCC 0x60 /* 0110 0000 */
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#define CAN_ERR_TRX_CANL_SHORT_TO_GND 0x70 /* 0111 0000 */
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#define CAN_ERR_TRX_CANL_SHORT_TO_CANH 0x80 /* 1000 0000 */
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enum gs_usb_breq {
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GS_USB_BREQ_HOST_FORMAT = 0,
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GS_USB_BREQ_BITTIMING,
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GS_USB_BREQ_MODE,
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GS_USB_BREQ_BERR,
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GS_USB_BREQ_BT_CONST,
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GS_USB_BREQ_DEVICE_CONFIG
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};
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enum gs_can_mode {
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/* reset a channel. turns it off */
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GS_CAN_MODE_RESET = 0,
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/* starts a channel */
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GS_CAN_MODE_START
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};
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enum gs_can_state {
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GS_CAN_STATE_ERROR_ACTIVE = 0,
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GS_CAN_STATE_ERROR_WARNING,
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GS_CAN_STATE_ERROR_PASSIVE,
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GS_CAN_STATE_BUS_OFF,
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GS_CAN_STATE_STOPPED,
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GS_CAN_STATE_SLEEPING
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};
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/* data types passed between host and device */
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struct gs_host_config {
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u32 byte_order;
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} __packed;
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/* All data exchanged between host and device is exchanged in host byte order,
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* thanks to the struct gs_host_config byte_order member, which is sent first
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* to indicate the desired byte order.
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*/
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struct gs_device_config {
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u8 reserved1;
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u8 reserved2;
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u8 reserved3;
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u8 icount;
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u32 sw_version;
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u32 hw_version;
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} __packed;
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struct gs_device_mode {
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u32 mode;
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u32 flags;
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} __packed;
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struct gs_device_state {
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u32 state;
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u32 rxerr;
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u32 txerr;
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} __packed;
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struct gs_device_bittiming {
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u32 prop_seg;
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u32 phase_seg1;
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u32 phase_seg2;
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u32 sjw;
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u32 brp;
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} __packed;
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struct gs_device_bt_const {
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u32 feature;
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u32 fclk_can;
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u32 tseg1_min;
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u32 tseg1_max;
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u32 tseg2_min;
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u32 tseg2_max;
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u32 sjw_max;
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u32 brp_min;
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u32 brp_max;
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u32 brp_inc;
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} __packed;
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struct gs_host_frame {
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u32 echo_id;
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u32 can_id;
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u8 can_dlc;
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u8 channel;
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u8 flags;
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u8 reserved;
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u8 data[8];
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} __packed;
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struct gs_tx_context {
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struct gs_can *dev;
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unsigned int echo_id;
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};
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