admin/Toyota-AVC-LAN
1
0
Fork 0
mirror of https://github.com/halleysfifthinc/AVCLAN-Mockingboard.git synced 2026-08-07 01:13:18 +00:00
Code Issues Packages Projects Releases Wiki Activity

Group pointer increments for better assembly (in recent GCC)

Browse Source
This commit is contained in:
Allen Hill
2026-05-12 10:14:15 -07:00
parent 1e715d1daa
commit 62f755c265
1 changed files with 23 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/avclandrv.c
+23 -19
View File
@@ -869,18 +869,23 @@ response_t AVCLAN_handleframe(const AVCLAN_frame_t *in, AVCLAN_frame_t *out) {
out->controller_addr = DEVICE_ADDR;
out->control = 0xF;
uint8_t *data = in->data;
const uint16_t peripheral_addr = in->peripheral_addr;
const uint8_t *data = in->data;
const uint8_t b0 = *data++;
const uint8_t b1 = *data++;
const uint8_t b2 = *data++;
const uint8_t b3 = *data++;
uint8_t from;
// BROADCAST
if (in->broadcast == 0) {
if (in->broadcast == BROADCAST) {
// skip confirming peripheral_addr, because it will be 0xFFF or 0x1FF based
// on all currently known examples
switch (*data++ /* data[0] == "from" device */) {
switch (b0 /* "from" device */) {
case dev_LAN:
switch (*data++ /* data[1] == "to" device */) {
switch (b1 /* "to" device */) {
case dev_COMM_CTRL:
switch (*data++ /* data[2] == device action */) {
switch (b2 /* device action */) {
case Lancheck_Scan_Req:
lancheck_resp[3] = Lancheck_Scan_Resp;
lancheck_resp[4] = 0x01;
@@ -909,11 +914,10 @@ response_t AVCLAN_handleframe(const AVCLAN_frame_t *in, AVCLAN_frame_t *out) {
break;
case dev_COMM_v1:
case dev_COMM_v2:
if (*data++ /* data[1] == "to" device */ == dev_COMM_CTRL) {
switch (*data++ /* data[2] == device action */) {
if (b1 /* "to" device */ == dev_COMM_CTRL) {
switch (b2 /* device action */) {
case Current_Function:
if ((*data++ /* data[2] */ == dev_CD_CHANGER) &&
!AVCLAN_isPlaying()) {
if ((b3 == dev_CD_CHANGER) && !AVCLAN_isPlaying()) {
cd_status.state = cd_SEEKING | cd_SEEKING_TRACK;
cd_status.flags2 = 0x80;
AVCLAN_startPlaying();
@@ -925,7 +929,7 @@ response_t AVCLAN_handleframe(const AVCLAN_frame_t *in, AVCLAN_frame_t *out) {
out->broadcast = UNICAST;
out->peripheral_addr = HU_ADDR;
out->length = sizeof(ping_resp);
ping_resp[4] = *data++ /* data[2] */;
ping_resp[4] = b3;
memcpy(out->data, ping_resp, sizeof(ping_resp));
respond = r_Handled;
break;
@@ -945,15 +949,15 @@ response_t AVCLAN_handleframe(const AVCLAN_frame_t *in, AVCLAN_frame_t *out) {
break;
default:
}
} else if (in->peripheral_addr == DEVICE_ADDR) { // unicast to CD changer
if (*data++ == 0) { // unicasts begin with a zero-byte
from = *data++; /* data[1] */
} else if (peripheral_addr == DEVICE_ADDR) { // unicast to CD changer
if (b0 == 0) { // unicasts begin with a zero-byte
from = b1;
switch (from) {
case dev_COMM_v1:
case dev_COMM_v2:
switch (*data++ /* data[2] == "to" device */) {
switch (b2 /* "to" device */) {
case dev_CD_CHANGER:
switch (*data++ /* data[3] == device action */) {
switch (b3 /* device action */) {
case Enable_Function_Req:
function_change_resp[3] = Enable_Function_Resp;
cd_status.state = cd_SEEKING | cd_SEEKING_TRACK;
@@ -986,9 +990,9 @@ response_t AVCLAN_handleframe(const AVCLAN_frame_t *in, AVCLAN_frame_t *out) {
}
break;
case dev_CMD_SW:
switch (*data++ /* data[2] == "to" device */) {
switch (b2 /* "to" device */) {
case dev_CD_CHANGER:
switch (*data++ /* data[3] == device action */) {
switch (b3 /* device action */) {
case Initial_Report_Request:
out->length = sizeof(cdinitreport_resp);
memcpy(out->data, cdinitreport_resp,
@@ -1038,9 +1042,9 @@ response_t AVCLAN_handleframe(const AVCLAN_frame_t *in, AVCLAN_frame_t *out) {
}
break;
case dev_STATUS:
switch (*data++ /* data[2] == "to" device */) {
switch (b2 /* "to" device */) {
case dev_CD_CHANGER:
switch (*data++ /* data[3] == device action */) {
switch (b3 /* device action */) {
case Initial_Report_Request:
out->length = sizeof(cdinitreport_resp);
memcpy(out->data, cdinitreport_resp,