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carol: add control board emulation, document touch board more

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This commit is contained in:
Hay1tsme
2023-04-28 04:25:47 -04:00
parent 74c8b312c5
commit 6fc2482c19
9 changed files with 587 additions and 151 deletions
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99
carolhook/ledbd.c
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@ -16,10 +16,12 @@
#include "util/dprintf.h"
#include "util/dump.h"
#include "board/slider-frame.h"
#include "board/slider-cmd.h"
static HRESULT ledbd_handle_irp(struct irp *irp);
static HRESULT ledbd_handle_irp_locked(struct irp *irp);
static HRESULT ledbd_frame_decode(struct ledbd_req *dest, struct iobuf *iobuf);
static HRESULT ledbd_frame_dispatch(struct ledbd_req *dest);
static HRESULT ledbd_frame_dispatch(const union slider_req_any *dest);
static HRESULT ledbd_req_noop(uint8_t cmd);
static HRESULT ledbd_req_unk7c(uint8_t cmd);
@ -68,7 +70,8 @@ static HRESULT ledbd_handle_irp(struct irp *irp)
static HRESULT ledbd_handle_irp_locked(struct irp *irp)
{
struct ledbd_req req;
union slider_req_any req;
struct iobuf req_iobuf;
HRESULT hr;
assert(carol_dll.ledbd_init != NULL);
@ -95,7 +98,11 @@ static HRESULT ledbd_handle_irp_locked(struct irp *irp)
dprintf("LED Board: TX Buffer:\n");
dump_iobuf(&ledbd_uart.written);
#endif
hr = ledbd_frame_decode(&req, &ledbd_uart.written);
req_iobuf.bytes = req.bytes;
req_iobuf.nbytes = sizeof(req.bytes);
req_iobuf.pos = 0;
hr = slider_frame_decode(&req_iobuf, &ledbd_uart.written);
if (FAILED(hr)) {
dprintf("LED Board: Deframe Error: 0X%X\n", (int) hr);
@ -114,26 +121,26 @@ static HRESULT ledbd_handle_irp_locked(struct irp *irp)
}
}
static HRESULT ledbd_frame_dispatch(struct ledbd_req *req)
static HRESULT ledbd_frame_dispatch(const union slider_req_any *req)
{
switch (req->cmd) {
switch (req->hdr.cmd) {
case LEDBD_CMD_UNK_10:
return ledbd_req_noop(req->cmd);
return ledbd_req_noop(req->hdr.cmd);
case LEDBD_CMD_UNK_7C:
return ledbd_req_unk7c(req->cmd);
return ledbd_req_unk7c(req->hdr.cmd);
case LEDBD_CMD_UNK_F0:
return ledbd_req_unkF0(req->cmd);
return ledbd_req_unkF0(req->hdr.cmd);
case LEDBD_CMD_UNK_30:
return ledbd_req_noop(req->cmd);
return ledbd_req_noop(req->hdr.cmd);
default:
dprintf("Unhandled command 0x%02X\n", req->cmd);
return ledbd_req_noop(req->cmd);
//dprintf("Unhandled command 0x%02X\n", req->cmd);
return ledbd_req_noop(req->hdr.cmd);
}
}
static HRESULT ledbd_req_noop(uint8_t cmd)
{
dprintf("LED Board: Noop cmd 0x%02X\n", cmd);
//dprintf("LED Board: Noop cmd 0x%02X\n", cmd);
uint8_t resp[] = { 0xE0, 0x01, 0x11, 0x03, 0x01, 0x00, 0x01, 0x17 };
resp[5] = cmd;
resp[7] = 0x17 + cmd;
@ -144,7 +151,7 @@ static HRESULT ledbd_req_noop(uint8_t cmd)
static HRESULT ledbd_req_unk7c(uint8_t cmd)
{
dprintf("LED Board: Cmd 0x7C\n");
//dprintf("LED Board: Cmd 0x7C\n");
uint8_t resp[] = { 0xE0, 0x01, 0x11, 0x04, 0x01, 0x7C, 0x01, 0x07, 0x9B };
iobuf_write(&ledbd_uart.readable, resp, 9);
@ -153,71 +160,9 @@ static HRESULT ledbd_req_unk7c(uint8_t cmd)
static HRESULT ledbd_req_unkF0(uint8_t cmd)
{
dprintf("LED Board: Cmd 0xF0\n");
//dprintf("LED Board: Cmd 0xF0\n");
uint8_t resp[] = { 0xE0, 0x01, 0x11, 0x0A, 0x01, 0xF0, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0E };
iobuf_write(&ledbd_uart.readable, resp, 16);
return S_OK;
}
/* Decodes the response into a struct that's easier to work with. TODO: Further validation */
static HRESULT ledbd_frame_decode(struct ledbd_req *dest, struct iobuf *iobuf)
{
int initial_pos = iobuf->pos;
int processed_pos = 0;
uint8_t check = 0;
bool escape = false;
dest->sync = iobuf->bytes[0];
dest->dest = iobuf->bytes[1];
check += dest->dest;
dest->src = iobuf->bytes[2];
check += dest->src;
dest->data_len = iobuf->bytes[3];
check += dest->data_len;
dest->cmd = iobuf->bytes[4];
check += dest->cmd;
for (int i = 0; i < dest->data_len - 1; i++) {
if (iobuf->bytes[i+5] == 0xD0) {
escape = true;
check += 0xD0;
continue;
}
dest->data[i] = iobuf->bytes[i+5];
if (escape) {
dest->data[i]++;
escape = false;
}
check += iobuf->bytes[i+5];
}
dest->checksum = iobuf->bytes[iobuf->pos - 1];
if (escape) {
dest->checksum++;
escape = false;
}
iobuf->pos = 0;
if (dest->sync != 0xe0) {
dprintf("LED Board: Sync error, expected 0xe0, got 0X%02X\n", dest->sync);
dump_iobuf(iobuf);
return E_FAIL;
}
if (dest->checksum != (check & 0xFF)) {
dprintf("LED Board: Checksum error, expected 0X%02X, got 0X%02X\n", dest->checksum, check);
dump_iobuf(iobuf);
return E_FAIL;
}
return S_OK;
}