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Differential D14725 Diff 45695 sys/mips/ingenic/jz4780_smb.c

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sys/mips/ingenic/jz4780_smb.c

Show First 20 Lines • Show All 242 Lines • ▼ Show 20 Linesjzsmb_transfer_read(device_t dev, struct iic_msg *msg)
SMB_WRITE(sc, SMBCON, con); SMB_WRITE(sc, SMBCON, con);
getnanouptime(&start); getnanouptime(&start);
for (resid = msg->len; resid > 0; resid--) { for (resid = msg->len; resid > 0; resid--) {
for (int i = 0; i < min(resid, 8); i++) for (int i = 0; i < min(resid, 8); i++)
SMB_WRITE(sc, SMBDC, SMBDC_CMD); SMB_WRITE(sc, SMBDC, SMBDC_CMD);
for (;;) { for (;;) {
getnanouptime(&diff); getnanouptime(&diff);
timespecsub(&diff, &start); timespecsub(&diff, &start, &diff);
if ((SMB_READ(sc, SMBST) & SMBST_RFNE) != 0) { if ((SMB_READ(sc, SMBST) & SMBST_RFNE) != 0) {
msg->buf[msg->len - resid] = msg->buf[msg->len - resid] =
SMB_READ(sc, SMBDC) & SMBDC_DAT; SMB_READ(sc, SMBDC) & SMBDC_DAT;
break; break;
} else } else
DELAY(1000); DELAY(1000);
if (tstohz(&diff) >= timeo) { if (tstohz(&diff) >= timeo) {
Show All 28 Linesjzsmb_transfer_write(device_t dev, struct iic_msg *msg, int stop_hold)
con = SMB_READ(sc, SMBCON); con = SMB_READ(sc, SMBCON);
con |= SMBCON_STPHLD; con |= SMBCON_STPHLD;
SMB_WRITE(sc, SMBCON, con); SMB_WRITE(sc, SMBCON, con);
getnanouptime(&start); getnanouptime(&start);
for (resid = msg->len; resid > 0; resid--) { for (resid = msg->len; resid > 0; resid--) {
for (;;) { for (;;) {
getnanouptime(&diff); getnanouptime(&diff);
timespecsub(&diff, &start); timespecsub(&diff, &start, &diff);
if ((SMB_READ(sc, SMBST) & SMBST_TFNF) != 0) { if ((SMB_READ(sc, SMBST) & SMBST_TFNF) != 0) {
SMB_WRITE(sc, SMBDC, SMB_WRITE(sc, SMBDC,
msg->buf[msg->len - resid]); msg->buf[msg->len - resid]);
break; break;
} else } else
DELAY((1000 * hz) / JZSMB_TIMEOUT); DELAY((1000 * hz) / JZSMB_TIMEOUT);
if (tstohz(&diff) >= timeo) { if (tstohz(&diff) >= timeo) {
▲ Show 20 Lines • Show All 176 Lines • Show Last 20 Lines