forked from Dniel97/segatools
386 lines
11 KiB
C
386 lines
11 KiB
C
/*
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SEGA 837-15093-06 LED controller emulator
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Credits:
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somewhatlurker, skogaby
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*/
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#include <windows.h>
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#include <assert.h>
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#include <process.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <string.h>
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#include "board/led1509306-cmd.h"
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#include "board/led1509306-frame.h"
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#include "chunihook/led1509306.h"
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#include "hook/iobuf.h"
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#include "hook/iohook.h"
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#include "hooklib/uart.h"
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#include "util/dprintf.h"
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#include "util/dump.h"
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static HRESULT led1509306_handle_irp(struct irp *irp);
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static HRESULT led1509306_handle_irp_locked(int board, struct irp *irp);
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static HRESULT led1509306_req_dispatch(int board, const struct led1509306_req_any *req);
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static HRESULT led1509306_req_reset(int board, const struct led1509306_req_any *req);
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static HRESULT led1509306_req_get_board_info(int board);
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static HRESULT led1509306_req_get_fw_sum(int board);
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static HRESULT led1509306_req_get_protocol_ver(int board);
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static HRESULT led1509306_req_get_board_status(int board);
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static HRESULT led1509306_req_set_led(int board, const struct led1509306_req_any *req);
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static HRESULT led1509306_req_set_disable_response(int board, const struct led1509306_req_any *req);
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static HRESULT led1509306_req_set_timeout(int board, const struct led1509306_req_any *req);
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static char led1509306_board_num[8];
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static char led1509306_chip_num[5];
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static uint8_t led1509306_fw_ver;
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static uint16_t led1509306_fw_sum;
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static uint8_t led1509306_board_adr = 2;
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static uint8_t led1509306_host_adr = 1;
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#define led1509306_nboards 2
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typedef struct {
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CRITICAL_SECTION lock;
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struct uart boarduart;
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uint8_t written_bytes[520];
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uint8_t readable_bytes[520];
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bool enable_response;
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} _led1509306_per_board_vars;
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_led1509306_per_board_vars led1509306_per_board_vars[led1509306_nboards];
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HRESULT led1509306_hook_init(const struct led1509306_config *cfg)
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{
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assert(cfg != NULL);
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if (!cfg->enable) {
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return S_FALSE;
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}
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memcpy(led1509306_board_num, cfg->board_number, sizeof(led1509306_board_num));
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memcpy(led1509306_chip_num, cfg->chip_number, sizeof(led1509306_chip_num));
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led1509306_fw_ver = cfg->fw_ver;
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led1509306_fw_sum = cfg->fw_sum;
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for (int i = 0; i < led1509306_nboards; i++)
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{
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_led1509306_per_board_vars *v = &led1509306_per_board_vars[i];
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InitializeCriticalSection(&v->lock);
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uart_init(&v->boarduart, 10 + i);
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v->boarduart.written.bytes = v->written_bytes;
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v->boarduart.written.nbytes = sizeof(v->written_bytes);
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v->boarduart.readable.bytes = v->readable_bytes;
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v->boarduart.readable.nbytes = sizeof(v->readable_bytes);
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v->enable_response = true;
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}
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return iohook_push_handler(led1509306_handle_irp);
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}
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static HRESULT led1509306_handle_irp(struct irp *irp)
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{
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HRESULT hr;
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assert(irp != NULL);
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for (int i = 0; i < led1509306_nboards; i++)
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{
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_led1509306_per_board_vars *v = &led1509306_per_board_vars[i];
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struct uart *boarduart = &v->boarduart;
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if (uart_match_irp(boarduart, irp))
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{
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CRITICAL_SECTION lock = v->lock;
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EnterCriticalSection(&lock);
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hr = led1509306_handle_irp_locked(i, irp);
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LeaveCriticalSection(&lock);
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return hr;
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}
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}
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return iohook_invoke_next(irp);
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}
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static HRESULT led1509306_handle_irp_locked(int board, struct irp *irp)
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{
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struct led1509306_req_any req;
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struct iobuf req_iobuf;
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HRESULT hr;
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struct uart *boarduart = &led1509306_per_board_vars[board].boarduart;
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hr = uart_handle_irp(boarduart, irp);
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if (FAILED(hr) || irp->op != IRP_OP_WRITE) {
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return hr;
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}
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for (;;) {
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#if 0
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dprintf("TX Buffer:\n");
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dump_iobuf(&boarduart->written);
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#endif
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req_iobuf.bytes = (byte*)&req;
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req_iobuf.nbytes = sizeof(req.hdr) + sizeof(req.cmd) + sizeof(req.payload);
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req_iobuf.pos = 0;
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hr = led1509306_frame_decode(&req_iobuf, &boarduart->written);
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if (hr != S_OK) {
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if (FAILED(hr)) {
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dprintf("Chunithm LED Strip: Deframe error: %x\n", (int) hr);
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}
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return hr;
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}
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#if 0
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dprintf("Deframe Buffer:\n");
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dump_iobuf(&req_iobuf);
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#endif
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hr = led1509306_req_dispatch(board, &req);
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if (FAILED(hr)) {
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dprintf("Chunithm LED Strip: Processing error: %x\n", (int) hr);
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}
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}
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}
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static HRESULT led1509306_req_dispatch(int board, const struct led1509306_req_any *req)
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{
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switch (req->cmd) {
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case LED_15093_06_CMD_RESET:
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return led1509306_req_reset(board, req);
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case LED_15093_06_CMD_BOARD_INFO:
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return led1509306_req_get_board_info(board);
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case LED_15093_06_CMD_FW_SUM:
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return led1509306_req_get_fw_sum(board);
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case LED_15093_06_CMD_PROTOCOL_VER:
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return led1509306_req_get_protocol_ver(board);
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case LED_15093_06_CMD_BOARD_STATUS:
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return led1509306_req_get_board_status(board);
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case LED_15093_06_CMD_SET_LED:
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return led1509306_req_set_led(board, req);
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case LED_15093_06_CMD_SET_DISABLE_RESPONSE:
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return led1509306_req_set_disable_response(board, req);
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case LED_15093_06_CMD_SET_TIMEOUT:
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return led1509306_req_set_timeout(board, req);
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default:
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dprintf("Chunithm LED Strip: Unhandled command %02x\n", req->cmd);
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return S_OK;
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}
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}
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static HRESULT led1509306_req_reset(int board, const struct led1509306_req_any *req)
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{
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dprintf("Chunithm LED Strip: Reset (board %u, type %02x)\n", board, req->payload[0]);
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if (req->payload[0] != 0xd9)
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dprintf("Chunithm LED Strip: Warning -- Unknown reset type %02x\n", req->payload[0]);
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led1509306_per_board_vars[board].enable_response = true;
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struct led1509306_resp_any resp;
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memset(&resp, 0, sizeof(resp));
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resp.hdr.sync = LED_15093_06_FRAME_SYNC;
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resp.hdr.dest_adr = led1509306_host_adr;
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resp.hdr.src_adr = led1509306_board_adr;
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resp.hdr.nbytes = 3;
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resp.status = 1;
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resp.cmd = LED_15093_06_CMD_RESET;
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resp.report = 1;
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return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
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}
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static HRESULT led1509306_req_get_board_info(int board)
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{
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dprintf("Chunithm LED Strip: Get board info (board %u)\n", board);
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struct led1509306_resp_board_info resp;
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memset(&resp, 0, sizeof(resp));
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resp.hdr.sync = LED_15093_06_FRAME_SYNC;
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resp.hdr.dest_adr = led1509306_host_adr;
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resp.hdr.src_adr = led1509306_board_adr;
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resp.hdr.nbytes = sizeof(resp.data) + 3;
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resp.status = 1;
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resp.cmd = LED_15093_06_CMD_BOARD_INFO;
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resp.report = 1;
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memcpy(resp.data.board_num, led1509306_board_num, sizeof(resp.data.board_num));
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resp.data._0a = 0x0a;
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memcpy(resp.data.chip_num, led1509306_chip_num, sizeof(resp.data.chip_num));
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resp.data._ff = 0xff;
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resp.data.fw_ver = led1509306_fw_ver;
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return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
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}
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static HRESULT led1509306_req_get_fw_sum(int board)
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{
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dprintf("Chunithm LED Strip: Get firmware checksum (board %u)\n", board);
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struct led1509306_resp_any resp;
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memset(&resp, 0, sizeof(resp));
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resp.hdr.sync = LED_15093_06_FRAME_SYNC;
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resp.hdr.dest_adr = led1509306_host_adr;
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resp.hdr.src_adr = led1509306_board_adr;
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resp.hdr.nbytes = 2 + 3;
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resp.status = 1;
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resp.cmd = LED_15093_06_CMD_FW_SUM;
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resp.report = 1;
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resp.data[0] = (led1509306_fw_sum >> 8) & 0xff;
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resp.data[1] = led1509306_fw_sum & 0xff;
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return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
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}
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static HRESULT led1509306_req_get_protocol_ver(int board)
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{
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dprintf("Chunithm LED Strip: Get protocol version (board %u)\n", board);
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struct led1509306_resp_any resp;
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memset(&resp, 0, sizeof(resp));
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resp.hdr.sync = LED_15093_06_FRAME_SYNC;
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resp.hdr.dest_adr = led1509306_host_adr;
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resp.hdr.src_adr = led1509306_board_adr;
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resp.hdr.nbytes = 3 + 3;
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resp.status = 1;
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resp.cmd = LED_15093_06_CMD_PROTOCOL_VER;
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resp.report = 1;
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resp.data[0] = 1;
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resp.data[1] = 1;
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resp.data[2] = 4;
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return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
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}
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static HRESULT led1509306_req_get_board_status(int board)
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{
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dprintf("Chunithm LED Strip: Get board status (board %u)\n", board);
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struct led1509306_resp_any resp;
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memset(&resp, 0, sizeof(resp));
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resp.hdr.sync = LED_15093_06_FRAME_SYNC;
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resp.hdr.dest_adr = led1509306_host_adr;
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resp.hdr.src_adr = led1509306_board_adr;
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resp.hdr.nbytes = 4 + 3;
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resp.status = 1;
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resp.cmd = LED_15093_06_CMD_BOARD_STATUS;
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resp.report = 1;
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resp.data[0] = 0;
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resp.data[1] = 0;
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resp.data[2] = 0;
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resp.data[3] = 0;
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return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
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}
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static HRESULT led1509306_req_set_led(int board, const struct led1509306_req_any *req)
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{
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// dprintf("Chunithm LED Strip: Set LED (board %u)\n", board);
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if (!led1509306_per_board_vars[board].enable_response)
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return S_OK;
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struct led1509306_resp_any resp;
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memset(&resp, 0, sizeof(resp));
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resp.hdr.sync = LED_15093_06_FRAME_SYNC;
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resp.hdr.dest_adr = led1509306_host_adr;
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resp.hdr.src_adr = led1509306_board_adr;
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resp.hdr.nbytes = 3;
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resp.status = 1;
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resp.cmd = LED_15093_06_CMD_SET_LED;
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resp.report = 1;
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return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
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}
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static HRESULT led1509306_req_set_disable_response(int board, const struct led1509306_req_any *req)
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{
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dprintf("Chunithm LED Strip: Disable LED responses (board %u)\n", board);
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led1509306_per_board_vars[board].enable_response = !req->payload[0];
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struct led1509306_resp_any resp;
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memset(&resp, 0, sizeof(resp));
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resp.hdr.sync = LED_15093_06_FRAME_SYNC;
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resp.hdr.dest_adr = led1509306_host_adr;
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resp.hdr.src_adr = led1509306_board_adr;
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resp.hdr.nbytes = 1 + 3;
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resp.status = 1;
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resp.cmd = LED_15093_06_CMD_SET_DISABLE_RESPONSE;
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resp.report = 1;
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resp.data[0] = req->payload[0];
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return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
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}
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static HRESULT led1509306_req_set_timeout(int board, const struct led1509306_req_any *req)
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{
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dprintf("Chunithm LED Strip: Set timeout (board %u)\n", board);
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// not actually implemented, but respond correctly anyway
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struct led1509306_resp_any resp;
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memset(&resp, 0, sizeof(resp));
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resp.hdr.sync = LED_15093_06_FRAME_SYNC;
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resp.hdr.dest_adr = led1509306_host_adr;
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resp.hdr.src_adr = led1509306_board_adr;
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resp.hdr.nbytes = 2 + 3;
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resp.status = 1;
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resp.cmd = LED_15093_06_CMD_SET_TIMEOUT;
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resp.report = 1;
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resp.data[0] = req->payload[0];
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resp.data[1] = req->payload[1];
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return led1509306_frame_encode(&led1509306_per_board_vars[board].boarduart.readable, &resp, sizeof(resp.hdr) + resp.hdr.nbytes);
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}
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