[a06aa8b] | 1 | /*
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| 2 | * Copyright (C) 2017 The Contributors
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| 3 | *
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| 4 | * This program is free software: you can redistribute it and/or modify
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| 5 | * it under the terms of the GNU General Public License as published by
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| 6 | * the Free Software Foundation, either version 3 of the License, or (at
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| 7 | * your option) any later version.
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| 8 | *
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| 9 | * This program is distributed in the hope that it will be useful, but
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| 10 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 12 | * General Public License for more details.
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| 13 | *
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| 14 | * A copy of the GNU General Public License can be found in the file
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[2147e53] | 15 | * "gpl.txt" in the top directory of this repository.
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[a06aa8b] | 16 | */
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| 17 |
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| 18 | #include <all.h>
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| 19 |
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[4c71d39] | 20 | #define ver(...) _ver(ser_verbose, 0, __VA_ARGS__)
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| 21 | #define ver2(...) _ver(ser_verbose, 1, __VA_ARGS__)
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| 22 | #define ver3(...) _ver(ser_verbose, 2, __VA_ARGS__)
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[a06aa8b] | 23 |
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[c5b6c90] | 24 | int32_t ser_verbose = 0;
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| 25 |
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| 26 | #define WIN_W (1520 * 2 / 3)
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| 27 | #define WIN_H (950 * 2 / 3)
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| 28 |
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[0726522] | 29 | #define BEL_CYC 10000
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[657abdf] | 30 | #define MOU_CYC 10000
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[0726522] | 31 |
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[bb4fd0c] | 32 | #define CON_W 80
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| 33 | #define CON_H 25
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| 34 |
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| 35 | #define CON_BGR 0x00000000
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[0726522] | 36 | #define CON_BEL 0x00808080
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[bb4fd0c] | 37 | #define CON_CUR 0x00e87000
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| 38 | #define CON_FGR ((SDL_Color){ .r = 255, .b = 255, .g = 255, .a = 255 })
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| 39 |
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[657abdf] | 40 | #define BUF_SZ 16
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| 41 |
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[3c30832] | 42 | #define REG_IER_ISR 0
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| 43 | #define REG_CFR_SR 1
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| 44 | #define REG_CDR_TBR 2
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| 45 | #define REG_TDR_RDR 3
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| 46 |
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| 47 | typedef struct {
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[657abdf] | 48 | int32_t buf_hd;
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| 49 | int32_t buf_tl;
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| 50 | uint8_t buf[BUF_SZ];
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[375f7fb] | 51 | bool irq_r;
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| 52 | bool irq_t;
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| 53 | bool rdr_ok;
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[3c30832] | 54 | uint8_t rdr;
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| 55 | } state_t;
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| 56 |
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| 57 | static state_t state[] = {
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[657abdf] | 58 | { .buf_hd = 0, .buf_tl = 0, .irq_r = false, .irq_t = false, .rdr_ok = false, .rdr = 0x00 },
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| 59 | { .buf_hd = 0, .buf_tl = 0, .irq_r = false, .irq_t = false, .rdr_ok = false, .rdr = 0x00 }
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[3c30832] | 60 | };
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| 61 |
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[8c8a883] | 62 | static uint8_t mem[CON_H][CON_W];
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[bb4fd0c] | 63 |
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[caff491] | 64 | static SDL_Window *win;
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[4ed9bfe] | 65 | uint32_t ser_win;
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| 66 |
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[caff491] | 67 | static SDL_Renderer *ren;
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[bdd5a63] | 68 | static SDL_atomic_t frame;
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[caff491] | 69 |
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[bb4fd0c] | 70 | static TTF_Font *fon;
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| 71 | static int32_t fon_w, fon_h;
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| 72 |
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| 73 | static int32_t sur_w, sur_h;
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| 74 | static SDL_Surface *sur;
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| 75 |
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| 76 | static int32_t cur_x = 0, cur_y = 0;
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[0726522] | 77 | static int32_t bel = 0;
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[bb4fd0c] | 78 |
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[657abdf] | 79 | static int32_t mou;
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| 80 | static int32_t mou_dx, mou_dy;
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| 81 | static bool mou_l, mou_r;
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| 82 |
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[bb4fd0c] | 83 | static void scroll(void)
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| 84 | {
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[8c8a883] | 85 | memmove(mem, mem + 1, (CON_H - 1) * CON_W);
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[bb4fd0c] | 86 | memset(mem + (CON_H - 1), ' ', CON_W);
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| 87 | }
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| 88 |
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| 89 | static void forw(void)
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| 90 | {
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| 91 | if (cur_x < CON_W - 1) {
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| 92 | ++cur_x;
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| 93 | return;
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| 94 | }
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| 95 |
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| 96 | if (cur_y == CON_H - 1) {
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| 97 | cur_x = 0;
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| 98 | scroll();
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| 99 | return;
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| 100 | }
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| 101 |
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| 102 | cur_x = 0;
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| 103 | ++cur_y;
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| 104 | }
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| 105 |
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| 106 | static void back(void)
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| 107 | {
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| 108 | if (cur_x > 0) {
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| 109 | --cur_x;
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| 110 | return;
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| 111 | }
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| 112 |
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| 113 | if (cur_y == 0) {
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| 114 | return;
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| 115 | }
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| 116 |
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| 117 | cur_x = CON_W - 1;
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| 118 | --cur_y;
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| 119 | }
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| 120 |
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| 121 | static void down(void)
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| 122 | {
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| 123 | if (cur_y < CON_H - 1) {
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| 124 | ++cur_y;
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| 125 | return;
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| 126 | }
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| 127 |
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| 128 | scroll();
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| 129 | }
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| 130 |
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| 131 | static void echo(uint8_t c)
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| 132 | {
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[2a75e87] | 133 | if (c < 32) {
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| 134 | switch (c) {
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| 135 | case '\r':
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| 136 | cur_x = 0;
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| 137 | break;
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[bb4fd0c] | 138 |
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[2a75e87] | 139 | case '\n':
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| 140 | down();
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| 141 | break;
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[bb4fd0c] | 142 |
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[2a75e87] | 143 | case '\b':
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| 144 | back();
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| 145 | break;
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[bb4fd0c] | 146 |
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[0726522] | 147 | case '\a':
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| 148 | bel = BEL_CYC;
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| 149 | break;
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| 150 |
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[2a75e87] | 151 | default:
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[bb4fd0c] | 152 | echo('^');
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| 153 | echo((uint8_t)(c + '@'));
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| 154 | return;
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| 155 | }
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[2a75e87] | 156 | }
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| 157 | else {
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[bb4fd0c] | 158 | mem[cur_y][cur_x] = c;
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| 159 | forw();
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| 160 | }
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| 161 |
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[bdd5a63] | 162 | SDL_AtomicAdd(&frame, 1);
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[bb4fd0c] | 163 | }
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| 164 |
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[657abdf] | 165 | static void xmit(int32_t un)
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| 166 | {
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| 167 | int32_t i = state[un].buf_tl;
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| 168 | ver2("ser xmit %d %d", i, state[un].buf_hd);
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| 169 |
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| 170 | if (i >= state[un].buf_hd) {
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| 171 | return;
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| 172 | }
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| 173 |
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| 174 | uint8_t byte = state[un].buf[i % BUF_SZ];
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| 175 | ver2("ser xmit 0x%02x", byte);
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| 176 |
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| 177 | state[un].rdr = byte;
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| 178 | state[un].rdr_ok = true;
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| 179 | state[un].irq_r = true;
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| 180 |
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| 181 | state[un].buf_tl = i + 1;
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| 182 |
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| 183 | if (state[un].buf_tl >= BUF_SZ) {
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| 184 | state[un].buf_hd -= BUF_SZ;
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| 185 | state[un].buf_tl -= BUF_SZ;
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| 186 | ver2("ser adj %d %d", state[un].buf_tl, state[un].buf_hd);
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| 187 | }
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| 188 | }
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| 189 |
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| 190 | static void out_lk(int32_t un, uint8_t c)
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| 191 | {
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| 192 | int32_t i = state[un].buf_hd;
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| 193 | ver2("ser out %d %d 0x%02x", state[un].buf_tl, i, c);
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| 194 |
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| 195 | if (i >= state[un].buf_tl + BUF_SZ) {
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| 196 | err("serial port %d losing data", un);
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| 197 | return;
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| 198 | }
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| 199 |
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| 200 | state[un].buf[i % BUF_SZ] = c;
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| 201 | state[un].buf_hd = i + 1;
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| 202 |
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| 203 | if (!state[un].irq_r && !state[un].rdr_ok) {
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| 204 | xmit(un);
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| 205 | }
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| 206 | }
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| 207 |
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[caff491] | 208 | static void out(int32_t un, uint8_t c)
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| 209 | {
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[bdd5a63] | 210 | if (SDL_LockMutex(cpu_mutex) < 0) {
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| 211 | fail("SDL_LockMutex() failed: %s", SDL_GetError());
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| 212 | }
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| 213 |
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[657abdf] | 214 | out_lk(un, c);
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[bdd5a63] | 215 |
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| 216 | if (SDL_UnlockMutex(cpu_mutex) < 0) {
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| 217 | fail("SDL_UnlockMutex() failed: %s", SDL_GetError());
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| 218 | }
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| 219 | }
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| 220 |
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[657abdf] | 221 | static void mouse(uint8_t c)
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| 222 | {
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| 223 | if (c == 't') {
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| 224 | ver2("ser mou init");
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| 225 | }
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| 226 |
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| 227 | out_lk(0, 'V');
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| 228 | out_lk(0, 'O');
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| 229 | }
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| 230 |
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[bdd5a63] | 231 | void ser_sdl(void)
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| 232 | {
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| 233 | ver3("ser_sdl()");
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| 234 |
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| 235 | static int32_t last = 0;
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| 236 | int32_t now = SDL_AtomicGet(&frame);
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| 237 |
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| 238 | if (last == now) {
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| 239 | ver3("no update");
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| 240 | return;
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| 241 | }
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| 242 |
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| 243 | last = now;
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| 244 |
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| 245 | if (SDL_FillRect(sur, NULL, bel == 0 ? CON_BGR : CON_BEL) < 0) {
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| 246 | fail("SDL_FillRect() failed: %s", SDL_GetError());
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| 247 | }
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| 248 |
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| 249 | if (SDL_FillRect(sur, &(SDL_Rect){
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| 250 | .x = cur_x * fon_w,
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| 251 | .y = cur_y * fon_h,
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| 252 | .w = fon_w,
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| 253 | .h = fon_h
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| 254 | }, CON_CUR) < 0) {
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| 255 | fail("SDL_FillRect() failed: %s", SDL_GetError());
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| 256 | }
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| 257 |
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| 258 | for (int32_t y = 0; y < CON_H; ++y) {
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| 259 | char line[CON_W + 1];
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[8c8a883] | 260 | line[CON_W] = 0;
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[bdd5a63] | 261 |
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| 262 | if (SDL_LockMutex(cpu_mutex) < 0) {
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| 263 | fail("SDL_LockMutex() failed: %s", SDL_GetError());
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| 264 | }
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| 265 |
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[8c8a883] | 266 | memcpy(line, mem[y], CON_W);
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[bdd5a63] | 267 |
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| 268 | if (SDL_UnlockMutex(cpu_mutex) < 0) {
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| 269 | fail("SDL_UnlockMutex() failed: %s", SDL_GetError());
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| 270 | }
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| 271 |
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| 272 | SDL_Surface *lin = TTF_RenderText_Blended(fon, line, CON_FGR);
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| 273 |
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| 274 | if (lin == NULL) {
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| 275 | fail("TTF_RenderText_Blended() failed: %s", TTF_GetError());
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| 276 | }
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| 277 |
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| 278 | if (SDL_BlitSurface(lin, NULL, sur, &(SDL_Rect){
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| 279 | .x = 0,
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| 280 | .y = y * fon_h,
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| 281 | .w = CON_W * fon_w,
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| 282 | .h = fon_h
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| 283 | })) {
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| 284 | fail("SDL_BlitSurface() failed: %s", SDL_GetError());
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| 285 | }
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| 286 |
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| 287 | SDL_FreeSurface(lin);
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| 288 | }
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| 289 |
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| 290 | SDL_Texture *tex = SDL_CreateTextureFromSurface(ren, sur);
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| 291 |
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| 292 | if (tex == NULL) {
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| 293 | fail("SDL_CreateTextureFromSurface() failed: %s", SDL_GetError());
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| 294 | }
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| 295 |
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| 296 | if (SDL_RenderCopy(ren, tex, NULL, NULL) < 0) {
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| 297 | fail("SDL_RenderCopy() failed: %s", SDL_GetError());
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| 298 | }
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| 299 |
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| 300 | SDL_DestroyTexture(tex);
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| 301 | SDL_RenderPresent(ren);
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[caff491] | 302 | }
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| 303 |
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[bb4fd0c] | 304 | void ser_key(SDL_KeyboardEvent *ev)
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| 305 | {
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| 306 | switch (ev->keysym.sym) {
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| 307 | case SDLK_BACKSPACE:
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[3c30832] | 308 | out(1, '\b');
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[bb4fd0c] | 309 | break;
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| 310 |
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| 311 | case SDLK_RETURN:
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[3c30832] | 312 | out(1, '\r');
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[bb4fd0c] | 313 | break;
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[a23f3d9] | 314 |
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| 315 | default:
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| 316 | if ((ev->keysym.mod & KMOD_CTRL) != 0 &&
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| 317 | ev->keysym.sym >= SDLK_a && ev->keysym.sym <= SDLK_z) {
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[3c30832] | 318 | out(1, (uint8_t)(ev->keysym.sym - SDLK_a + 1));
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[a23f3d9] | 319 | }
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| 320 |
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| 321 | break;
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[bb4fd0c] | 322 | }
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| 323 | }
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| 324 |
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| 325 | void ser_text(SDL_TextInputEvent *ev)
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| 326 | {
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| 327 | for (int32_t i = 0; ev->text[i] != 0; ++i) {
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[3c30832] | 328 | out(1, (uint8_t)ev->text[i]);
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[bb4fd0c] | 329 | }
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| 330 | }
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| 331 |
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[657abdf] | 332 | static void mou_ev(void)
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| 333 | {
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| 334 | ver2("ser mou ev (%d, %d) %c %c",
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| 335 | mou_dx, mou_dy, mou_l ? 'l' : '-', mou_r ? 'r' : '-');
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| 336 |
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| 337 | int32_t dx = mou_dx;
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| 338 | int32_t dy = mou_dy;
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| 339 |
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| 340 | if (dx < -128) {
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| 341 | dx = -128;
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| 342 | }
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| 343 | else if (dx > 127) {
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| 344 | dx = 127;
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| 345 | }
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| 346 |
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| 347 | if (dy < -128) {
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| 348 | dy = -128;
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| 349 | }
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| 350 | else if (dy > 127) {
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| 351 | dy = 127;
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| 352 | }
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| 353 |
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| 354 | dx = dx & 0xff;
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| 355 | dy = dy & 0xff;
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| 356 |
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| 357 | int32_t b1 = 0x40;
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| 358 |
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| 359 | if (mou_l) {
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| 360 | b1 |= 0x20;
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| 361 | }
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| 362 |
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| 363 | if (mou_r) {
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| 364 | b1 |= 0x10;
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| 365 | }
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| 366 |
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| 367 | b1 |= (dy & 0xc0) >> 4;
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| 368 | b1 |= (dx & 0xc0) >> 6;
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| 369 |
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| 370 | int32_t b2 = dx & 0x3f;
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| 371 | int32_t b3 = dy & 0x3f;
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| 372 |
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| 373 | out_lk(0, (uint8_t)b1);
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| 374 | out_lk(0, (uint8_t)b2);
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| 375 | out_lk(0, (uint8_t)b3);
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| 376 |
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| 377 | mou_dx = mou_dy = 0;
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| 378 | }
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| 379 |
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| 380 | static void mou_ev_chk(void)
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| 381 | {
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| 382 | if (--mou > 0) {
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| 383 | return;
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| 384 | }
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| 385 |
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| 386 | mou = MOU_CYC;
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| 387 |
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| 388 | if (mou_dx == 0 && mou_dy == 0) {
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| 389 | return;
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| 390 | }
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| 391 |
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| 392 | mou_ev();
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| 393 | }
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| 394 |
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| 395 | void ser_mou_res(void)
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| 396 | {
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| 397 | if (SDL_LockMutex(cpu_mutex) < 0) {
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| 398 | fail("SDL_LockMutex() failed: %s", SDL_GetError());
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| 399 | }
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| 400 |
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| 401 | mou = MOU_CYC;
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| 402 | mou_dx = mou_dy = 0;
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| 403 | mou_l = mou_r = false;
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| 404 |
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| 405 | if (SDL_UnlockMutex(cpu_mutex) < 0) {
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| 406 | fail("SDL_UnlockMutex() failed: %s", SDL_GetError());
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| 407 | }
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| 408 | }
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| 409 |
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| 410 | void ser_mou_mov(SDL_MouseMotionEvent *ev)
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| 411 | {
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| 412 | if (SDL_LockMutex(cpu_mutex) < 0) {
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| 413 | fail("SDL_LockMutex() failed: %s", SDL_GetError());
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| 414 | }
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| 415 |
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| 416 | mou_dx += ev->xrel;
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| 417 | mou_dy += ev->yrel;
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| 418 |
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| 419 | if (SDL_UnlockMutex(cpu_mutex) < 0) {
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| 420 | fail("SDL_UnlockMutex() failed: %s", SDL_GetError());
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| 421 | }
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| 422 | }
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| 423 |
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| 424 | void ser_mou_dn(SDL_MouseButtonEvent *ev)
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| 425 | {
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| 426 | if (SDL_LockMutex(cpu_mutex) < 0) {
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| 427 | fail("SDL_LockMutex() failed: %s", SDL_GetError());
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| 428 | }
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| 429 |
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| 430 | if (ev->button == SDL_BUTTON_LEFT) {
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| 431 | mou_l = true;
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| 432 | }
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| 433 | else if (ev->button == SDL_BUTTON_RIGHT) {
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| 434 | mou_r = true;
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| 435 | }
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| 436 | else {
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| 437 | return;
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| 438 | }
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| 439 |
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| 440 | mou_ev();
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---|
| 441 |
|
---|
| 442 | if (SDL_UnlockMutex(cpu_mutex) < 0) {
|
---|
| 443 | fail("SDL_UnlockMutex() failed: %s", SDL_GetError());
|
---|
| 444 | }
|
---|
| 445 | }
|
---|
| 446 |
|
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| 447 | void ser_mou_up(SDL_MouseButtonEvent *ev)
|
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| 448 | {
|
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| 449 | if (SDL_LockMutex(cpu_mutex) < 0) {
|
---|
| 450 | fail("SDL_LockMutex() failed: %s", SDL_GetError());
|
---|
| 451 | }
|
---|
| 452 |
|
---|
| 453 | if (ev->button == SDL_BUTTON_LEFT) {
|
---|
| 454 | mou_l = false;
|
---|
| 455 | }
|
---|
| 456 | else if (ev->button == SDL_BUTTON_RIGHT) {
|
---|
| 457 | mou_r = false;
|
---|
| 458 | }
|
---|
| 459 | else {
|
---|
| 460 | return;
|
---|
| 461 | }
|
---|
| 462 |
|
---|
| 463 | mou_ev();
|
---|
| 464 |
|
---|
| 465 | if (SDL_UnlockMutex(cpu_mutex) < 0) {
|
---|
| 466 | fail("SDL_UnlockMutex() failed: %s", SDL_GetError());
|
---|
| 467 | }
|
---|
| 468 | }
|
---|
| 469 |
|
---|
[a06aa8b] | 470 | void ser_init(void)
|
---|
| 471 | {
|
---|
| 472 | ver("ser init");
|
---|
[bb4fd0c] | 473 |
|
---|
[caff491] | 474 | win = SDL_CreateWindow("Serial Console", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
|
---|
| 475 | WIN_W, WIN_H, 0);
|
---|
| 476 |
|
---|
| 477 | if (win == NULL) {
|
---|
| 478 | fail("SDL_CreateWindow() failed: %s", SDL_GetError());
|
---|
| 479 | }
|
---|
| 480 |
|
---|
[4ed9bfe] | 481 | ser_win = SDL_GetWindowID(win);
|
---|
| 482 |
|
---|
| 483 | if (ser_win == 0) {
|
---|
| 484 | fail("SDL_GetWindowID() failed: %s", SDL_GetError());
|
---|
| 485 | }
|
---|
| 486 |
|
---|
[caff491] | 487 | ren = SDL_CreateRenderer(win, -1, 0);
|
---|
| 488 |
|
---|
| 489 | if (ren == NULL) {
|
---|
| 490 | fail("SDL_CreateRenderer() failed: %s", SDL_GetError());
|
---|
| 491 | }
|
---|
| 492 |
|
---|
[bdd5a63] | 493 | SDL_AtomicSet(&frame, 1);
|
---|
| 494 |
|
---|
[0edef06] | 495 | SDL_RWops *ops = SDL_RWFromFile(font, "rb");
|
---|
[bb4fd0c] | 496 |
|
---|
| 497 | if (ops == NULL) {
|
---|
[0edef06] | 498 | fail("error while opening font file %s: %s", font, SDL_GetError());
|
---|
[bb4fd0c] | 499 | }
|
---|
| 500 |
|
---|
| 501 | fon = TTF_OpenFontRW(ops, 1, 32);
|
---|
| 502 |
|
---|
| 503 | if (fon == NULL) {
|
---|
[0edef06] | 504 | fail("error while loading font file %s: %s", font, TTF_GetError());
|
---|
[bb4fd0c] | 505 | }
|
---|
| 506 |
|
---|
| 507 | fon_h = TTF_FontLineSkip(fon);
|
---|
| 508 |
|
---|
| 509 | if (TTF_GlyphMetrics(fon, 'X', NULL, NULL, NULL, NULL, &fon_w) < 0) {
|
---|
| 510 | fail("error while measuring font width: %s", TTF_GetError());
|
---|
| 511 | }
|
---|
| 512 |
|
---|
| 513 | sur_w = CON_W * fon_w;
|
---|
| 514 | sur_h = CON_H * fon_h;
|
---|
| 515 |
|
---|
| 516 | sur = SDL_CreateRGBSurface(0, sur_w, sur_h, 32, 0, 0, 0, 0);
|
---|
| 517 |
|
---|
| 518 | if (sur == NULL) {
|
---|
| 519 | fail("SDL_CreateRGBSurface() failed: %s", SDL_GetError());
|
---|
| 520 | }
|
---|
| 521 |
|
---|
| 522 | for (int32_t y = 0; y < CON_H; ++y) {
|
---|
| 523 | for (int32_t x = 0; x < CON_W; ++x) {
|
---|
| 524 | mem[y][x] = ' ';
|
---|
| 525 | }
|
---|
| 526 | }
|
---|
[a06aa8b] | 527 | }
|
---|
| 528 |
|
---|
| 529 | void ser_quit(void)
|
---|
| 530 | {
|
---|
| 531 | ver("ser quit");
|
---|
[bb4fd0c] | 532 |
|
---|
| 533 | SDL_FreeSurface(sur);
|
---|
| 534 | TTF_CloseFont(fon);
|
---|
[caff491] | 535 |
|
---|
| 536 | SDL_DestroyRenderer(ren);
|
---|
| 537 | SDL_DestroyWindow(win);
|
---|
[a06aa8b] | 538 | }
|
---|
| 539 |
|
---|
[3c30832] | 540 | bool ser_exec(void)
|
---|
[a06aa8b] | 541 | {
|
---|
[4c71d39] | 542 | ver3("ser exec");
|
---|
[0726522] | 543 |
|
---|
| 544 | if (bel > 0) {
|
---|
| 545 | --bel;
|
---|
| 546 |
|
---|
| 547 | if (bel == BEL_CYC - 1 || bel == 0) {
|
---|
[bdd5a63] | 548 | SDL_AtomicAdd(&frame, 1);
|
---|
[0726522] | 549 | }
|
---|
| 550 | }
|
---|
| 551 |
|
---|
[657abdf] | 552 | mou_ev_chk();
|
---|
| 553 |
|
---|
[375f7fb] | 554 | return state[0].irq_r || state[0].irq_t || state[1].irq_r || state[1].irq_t;
|
---|
[a06aa8b] | 555 | }
|
---|
| 556 |
|
---|
| 557 | uint32_t ser_read(uint32_t off, int32_t sz)
|
---|
| 558 | {
|
---|
[4c71d39] | 559 | ver2("ser rd %u:%d", off, sz * 8);
|
---|
[3c30832] | 560 |
|
---|
| 561 | if (sz != 1 || off > 7) {
|
---|
| 562 | fail("invalid ser rd %u:%d", off, sz * 8);
|
---|
| 563 | }
|
---|
| 564 |
|
---|
| 565 | int32_t rg = (int32_t)(off % 4);
|
---|
| 566 | int32_t un = (int32_t)(off / 4);
|
---|
| 567 |
|
---|
| 568 | uint32_t rv;
|
---|
| 569 |
|
---|
| 570 | switch (rg) {
|
---|
| 571 | case REG_IER_ISR:
|
---|
[375f7fb] | 572 | rv = (uint32_t)(0xc0 | (state[un].rdr_ok ? 0x01 : 0x00));
|
---|
| 573 | state[un].irq_r = false;
|
---|
| 574 | state[un].irq_t = false;
|
---|
[3c30832] | 575 | ver2("ISR[%d] 0x%02x", un, rv);
|
---|
| 576 | break;
|
---|
| 577 |
|
---|
| 578 | case REG_TDR_RDR:
|
---|
| 579 | rv = state[un].rdr;
|
---|
[375f7fb] | 580 | state[un].rdr_ok = false;
|
---|
[3c30832] | 581 | ver2("RDR[%d] 0x%02x", un, rv);
|
---|
| 582 | break;
|
---|
| 583 |
|
---|
| 584 | default:
|
---|
| 585 | rv = 0x00;
|
---|
| 586 | break;
|
---|
| 587 | }
|
---|
| 588 |
|
---|
[657abdf] | 589 | if (!state[un].irq_r && !state[un].rdr_ok) {
|
---|
| 590 | xmit(un);
|
---|
| 591 | }
|
---|
| 592 |
|
---|
[3c30832] | 593 | return rv;
|
---|
[a06aa8b] | 594 | }
|
---|
| 595 |
|
---|
| 596 | void ser_write(uint32_t off, int32_t sz, uint32_t val)
|
---|
| 597 | {
|
---|
[4c71d39] | 598 | ver2("ser wr %u:%d 0x%0*x", off, sz * 8, sz * 2, val);
|
---|
[3c30832] | 599 |
|
---|
| 600 | if (sz != 1 || off > 7) {
|
---|
| 601 | fail("invalid ser wr %u:%d", off, sz * 8);
|
---|
| 602 | }
|
---|
| 603 |
|
---|
| 604 | int32_t rg = (int32_t)(off % 4);
|
---|
| 605 | int32_t un = (int32_t)(off / 4);
|
---|
| 606 |
|
---|
| 607 | switch (rg) {
|
---|
| 608 | case REG_TDR_RDR:
|
---|
| 609 | ver2("TDR[%d] 0x%02x", un, val);
|
---|
[657abdf] | 610 |
|
---|
| 611 | if (un == 1) {
|
---|
| 612 | echo((uint8_t)val);
|
---|
| 613 | }
|
---|
| 614 | else {
|
---|
| 615 | mouse((uint8_t)val);
|
---|
| 616 | }
|
---|
| 617 |
|
---|
[375f7fb] | 618 | state[un].irq_t = true;
|
---|
[3c30832] | 619 | break;
|
---|
| 620 |
|
---|
| 621 | default:
|
---|
| 622 | break;
|
---|
| 623 | }
|
---|
[a06aa8b] | 624 | }
|
---|