#ifndef _LIN_BUS_H_
#define _LIN_BUS_H_
-#define SLLIN_ID_MASK 0x3f
-#define SLLIN_ID_MAX SLLIN_ID_MASK
-#define SLLIN_CTRL_FRAME CAN_EFF_FLAG
+#define LIN_ID_MASK 0x3f
+#define LIN_ID_MAX LIN_ID_MASK
+#define LIN_CTRL_FRAME CAN_EFF_FLAG
-#define SLLIN_CANFR_FLAGS_OFFS 6 /* Lower 6 bits in can_id correspond to LIN ID */
+#define LIN_CANFR_FLAGS_OFFS 6 /* Lower 6 bits in can_id correspond to LIN ID */
/* Save configuration for particular LIN ID */
-#define SLLIN_LIN_ID_CONF (1 << SLLIN_CANFR_FLAGS_OFFS)
+#define LIN_ID_CONF (1 << LIN_CANFR_FLAGS_OFFS)
/* Publisher of particular LIN response is SLLIN Master */
-#define SLLIN_SRC_MASTER (1 << (SLLIN_CANFR_FLAGS_OFFS + 1))
-#define SLLIN_SRC_SLAVE (1 << (SLLIN_CANFR_FLAGS_OFFS + 2))
-#define SLLIN_SLAVE_LOCAL (1 << (SLLIN_CANFR_FLAGS_OFFS + 3))
-#define SLLIN_SLAVE_REMOTE (1 << (SLLIN_CANFR_FLAGS_OFFS + 4))
-#define SLLIN_LOC_SLAVE_CACHE (1 << (SLLIN_CANFR_FLAGS_OFFS + 5))
-#define SLLIN_CHECKSUM_EXTENDED (1 << (SLLIN_CANFR_FLAGS_OFFS + 6))
+#define LIN_SRC_MASTER (1 << (LIN_CANFR_FLAGS_OFFS + 1))
+#define LIN_SRC_SLAVE (1 << (LIN_CANFR_FLAGS_OFFS + 2))
+#define LIN_SLAVE_LOCAL (1 << (LIN_CANFR_FLAGS_OFFS + 3))
+#define LIN_SLAVE_REMOTE (1 << (LIN_CANFR_FLAGS_OFFS + 4))
+#define LIN_LOC_SLAVE_CACHE (1 << (LIN_CANFR_FLAGS_OFFS + 5))
+#define LIN_CHECKSUM_EXTENDED (1 << (LIN_CANFR_FLAGS_OFFS + 6))
-#define SLLIN_ERR_RX_TIMEOUT (1 << (SLLIN_CANFR_FLAGS_OFFS + 7))
-#define SLLIN_ERR_CHECKSUM (1 << (SLLIN_CANFR_FLAGS_OFFS + 8))
-//#define SLLIN_ERR_FRAMING (1 << (SLLIN_CANFR_FLAGS_OFFS + 9))
+#define LIN_ERR_RX_TIMEOUT (1 << (LIN_CANFR_FLAGS_OFFS + 7))
+#define LIN_ERR_CHECKSUM (1 << (LIN_CANFR_FLAGS_OFFS + 8))
+//#define LIN_ERR_FRAMING (1 << (LIN_CANFR_FLAGS_OFFS + 9))
#endif /* _LIN_BUS_H_ */
struct sk_buff *tx_req_skb; /* Socket buffer with CAN frame received
from network stack*/
- struct sllin_conf_entry linfr_cache[SLLIN_ID_MAX + 1]; /* List with configurations for
- each of 0 to SLLIN_ID_MAX LIN IDs */
+ struct sllin_conf_entry linfr_cache[LIN_ID_MAX + 1]; /* List with configurations for
+ each of 0 to LIN_ID_MAX LIN IDs */
};
static struct net_device **sllin_devs;
*/
static void sll_bump(struct sllin *sl)
{
- sllin_send_canfr(sl, sl->rx_buff[SLLIN_BUFF_ID] & SLLIN_ID_MASK,
+ sllin_send_canfr(sl, sl->rx_buff[SLLIN_BUFF_ID] & LIN_ID_MASK,
sl->rx_buff + SLLIN_BUFF_DATA,
sl->rx_cnt - SLLIN_BUFF_DATA - 1); /* without checksum */
}
}
cf = (struct can_frame *) skb->data;
- if (cf->can_id & SLLIN_CTRL_FRAME) {
+ if (cf->can_id & LIN_CTRL_FRAME) {
sllin_configure_frame_cache(sl, cf);
goto free_out_unlock;
}
void sllin_report_error(struct sllin *sl, int err)
{
sllin_send_canfr(sl, 0 | CAN_EFF_FLAG |
- (err & ~SLLIN_ID_MASK), NULL, 0);
+ (err & ~LIN_ID_MASK), NULL, 0);
}
/**
static int sllin_configure_frame_cache(struct sllin *sl, struct can_frame *cf)
{
struct sllin_conf_entry *sce;
- if (!(cf->can_id & SLLIN_LIN_ID_CONF))
+ if (!(cf->can_id & LIN_ID_CONF))
return -1;
- sce = &sl->linfr_cache[cf->can_id & SLLIN_ID_MASK];
+ sce = &sl->linfr_cache[cf->can_id & LIN_ID_MASK];
pr_debug("sllin: Setting frame cache with EFF CAN frame. "
- "LIN ID = %d\n", cf->can_id & SLLIN_ID_MASK);
+ "LIN ID = %d\n", cf->can_id & LIN_ID_MASK);
sce->dlc = cf->can_dlc;
if (sce->dlc > SLLIN_DATA_MAX)
sce->dlc = SLLIN_DATA_MAX;
- sce->frame_fl = (cf->can_id & ~SLLIN_ID_MASK) & CAN_EFF_MASK;
+ sce->frame_fl = (cf->can_id & ~LIN_ID_MASK) & CAN_EFF_MASK;
memcpy(sce->data, cf->data, cf->can_dlc);
return 0;
int sllin_setup_msg(struct sllin *sl, int mode, int id,
unsigned char *data, int len)
{
- if (id > SLLIN_ID_MASK)
+ if (id > LIN_ID_MASK)
return -1;
if (!(mode & SLLIN_STPMSG_RESPONLY)) {
{
struct sllin *sl = container_of(hrtimer, struct sllin, rx_timer);
- sllin_report_error(sl, SLLIN_ERR_RX_TIMEOUT);
+ sllin_report_error(sl, LIN_ERR_RX_TIMEOUT);
set_bit(SLF_TMOUTEVENT, &sl->flags);
wake_up(&sl->kwt_wq);
unsigned char rec_chcksm = sl->rx_buff[sl->rx_cnt - 1];
struct sllin_conf_entry *scf;
- actual_id = sl->rx_buff[SLLIN_BUFF_ID] & SLLIN_ID_MASK;
+ actual_id = sl->rx_buff[SLLIN_BUFF_ID] & LIN_ID_MASK;
scf = &sl->linfr_cache[actual_id];
lin_dlc = scf->dlc;
- ext_chcks_fl = scf->frame_fl & SLLIN_CHECKSUM_EXTENDED;
+ ext_chcks_fl = scf->frame_fl & LIN_CHECKSUM_EXTENDED;
if (sllin_checksum(sl->rx_buff, sl->rx_cnt - 1, ext_chcks_fl) !=
rec_chcksm) {
if (cf->can_id & CAN_RTR_FLAG) {
spin_lock(&sl->lock);
pr_debug("sllin: %s: RTR SFF CAN frame, ID = %x\n",
- __FUNCTION__, cf->can_id & SLLIN_ID_MASK);
+ __FUNCTION__, cf->can_id & LIN_ID_MASK);
/* Is there Slave response in linfr_cache to be sent? */
- if ((sl->linfr_cache[cf->can_id & SLLIN_ID_MASK].frame_fl &
- SLLIN_LOC_SLAVE_CACHE)
- && (sl->linfr_cache[cf->can_id & SLLIN_ID_MASK].dlc > 0)) {
+ if ((sl->linfr_cache[cf->can_id & LIN_ID_MASK].frame_fl &
+ LIN_LOC_SLAVE_CACHE)
+ && (sl->linfr_cache[cf->can_id & LIN_ID_MASK].dlc > 0)) {
pr_debug("sllin: Sending LIN response from linfr_cache\n");
- lin_data = sl->linfr_cache[cf->can_id & SLLIN_ID_MASK].data;
- lin_dlc = sl->linfr_cache[cf->can_id & SLLIN_ID_MASK].dlc;
+ lin_data = sl->linfr_cache[cf->can_id & LIN_ID_MASK].data;
+ lin_dlc = sl->linfr_cache[cf->can_id & LIN_ID_MASK].dlc;
if (lin_dlc > SLLIN_DATA_MAX)
lin_dlc = SLLIN_DATA_MAX;
memcpy(lin_data_buff, lin_data, lin_dlc);
lin_data = lin_data_buff;
} else {
lin_data = NULL;
- lin_dlc = sl->linfr_cache[cf->can_id & SLLIN_ID_MASK].dlc;
+ lin_dlc = sl->linfr_cache[cf->can_id & LIN_ID_MASK].dlc;
}
spin_unlock(&sl->lock);
} else { /* SFF NON-RTR CAN frame -> LIN header + LIN response */
pr_debug("sllin: %s: NON-RTR SFF CAN frame, ID = %x\n",
- __FUNCTION__, (int)cf->can_id & SLLIN_ID_MASK);
+ __FUNCTION__, (int)cf->can_id & LIN_ID_MASK);
lin_data = cf->data;
lin_dlc = cf->can_dlc;
tx_bytes = lin_dlc;
}
- if (sllin_setup_msg(sl, 0, cf->can_id & SLLIN_ID_MASK,
+ if (sllin_setup_msg(sl, 0, cf->can_id & LIN_ID_MASK,
lin_data, lin_dlc) != -1) {
sl->id_to_send = true;
cf = (struct can_frame *)sl->tx_req_skb->data;
lin_buff = (sl->lin_master) ? sl->tx_buff : sl->rx_buff;
- if (cf->can_id == (lin_buff[SLLIN_BUFF_ID] & SLLIN_ID_MASK)) {
+ if (cf->can_id == (lin_buff[SLLIN_BUFF_ID] & LIN_ID_MASK)) {
if (sllin_setup_msg(sl, SLLIN_STPMSG_RESPONLY,
- cf->can_id & SLLIN_ID_MASK,
+ cf->can_id & LIN_ID_MASK,
cf->data, cf->can_dlc) != -1) {
sl->rx_expect = sl->tx_lim;
if (sllin_rx_validate(sl) == -1) {
pr_debug("sllin: RX validation failed.\n");
- sllin_report_error(sl, SLLIN_ERR_CHECKSUM);
+ sllin_report_error(sl, LIN_ERR_CHECKSUM);
//FIXME tx_stat.err++
} else {
// send CAN non-RTR frame with data