Fix ps2_host_recv_response
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084bdb977e
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00c71f2d21
@ -40,10 +40,6 @@
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#endif
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#define println(s) print_P(PSTR(s "\n"))
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#ifndef AVR_LIBC_PRINTF
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#define printf(f, ...) xprintf(f, ##__VA_ARGS__)
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#endif
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/* for old name */
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#define pdec(data) print_dec(data)
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#define pdec16(data) print_dec(data)
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@ -104,6 +104,7 @@ uint8_t ps2_host_send(uint8_t data)
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WAIT(clock_hi, 50, 8);
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WAIT(data_hi, 50, 9);
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inhibit();
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res = ps2_host_recv_response();
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ERROR:
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inhibit();
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@ -113,12 +114,14 @@ ERROR:
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/* receive data when host want else inhibit communication */
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uint8_t ps2_host_recv_response(void)
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{
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// TODO:
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// Command might take 20ms to response([3]p.21)
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// TrackPoint might take 25ms ([5]2.7)
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// 250 * 100us(wait for start bit in ps2_host_recv)
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uint8_t data = 0;
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uint8_t try = 200;
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while (try-- && (data = ps2_host_recv())) ;
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uint8_t try = 250;
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do {
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data = ps2_host_recv();
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} while (try-- && ps2_error);
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return data;
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}
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@ -172,7 +175,7 @@ uint8_t ps2_host_recv(void)
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return data;
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ERROR:
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if (ps2_error > PS2_ERR_STARTBIT3) {
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printf("x%02X\n", ps2_error);
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xprintf("x%02X\n", ps2_error);
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}
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inhibit();
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return 0;
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