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mesh: fix write-out-of-bounds to BusStatus1.

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This commit is contained in:
Maxim Poliakovski 2023-10-18 11:21:38 +02:00
parent aa5ef742f6
commit 36cb84eaaa
1 changed files with 3 additions and 2 deletions
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5
devices/common/scsi/mesh.cpp
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@ -49,6 +49,7 @@ void MeshController::reset(bool is_hard_reset)
this->fifo_cnt = 0; this->fifo_cnt = 0;
this->int_mask = 0; this->int_mask = 0;
this->xfer_count = 0; this->xfer_count = 0;
this->src_id = 7;
if (is_hard_reset) { if (is_hard_reset) {
this->bus_stat = 0; this->bus_stat = 0;
@ -106,9 +107,9 @@ void MeshController::write(uint8_t reg_offset, uint8_t value)
for (uint16_t mask = SCSI_CTRL_RST; mask >= SCSI_CTRL_SEL; mask >>= 1) { for (uint16_t mask = SCSI_CTRL_RST; mask >= SCSI_CTRL_SEL; mask >>= 1) {
if ((new_stat ^ this->bus_stat) & mask) { if ((new_stat ^ this->bus_stat) & mask) {
if (new_stat & mask) if (new_stat & mask)
this->bus_obj->assert_ctrl_line(new_stat, mask); this->bus_obj->assert_ctrl_line(this->src_id, mask);
else else
this->bus_obj->release_ctrl_line(new_stat, mask); this->bus_obj->release_ctrl_line(this->src_id, mask);
} }
} }
this->bus_stat = new_stat; this->bus_stat = new_stat;