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#ifndef _gcn64_protocol_h__
#define _gcn64_protocol_h__
#define CONTROLLER_IS_ABSENT 0
#define CONTROLLER_IS_N64 1
#define CONTROLLER_IS_GC 2
#define CONTROLLER_IS_GC_KEYBOARD 3
#define CONTROLLER_IS_UNKNOWN 4
#define CONTROLLER_IS_N64_MOUSE 5
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/* Return many unknown bits, but two are about the expansion port. */
#define N64_GET_CAPABILITIES 0x00
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#define N64_RESET 0xFF
#define N64_CAPS_REPLY_LENGTH 3
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#define OFFSET_EXT_REMOVED 22
#define OFFSET_EXT_PRESENT 23
/* Returns button states and axis values */
#define N64_GET_STATUS 0x01
#define N64_GET_STATUS_REPLY_LENGTH 4
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/* Read from the expansion bus. */
#define N64_EXPANSION_READ 0x02
/* Write to the expansion bus. */
#define N64_EXPANSION_WRITE 0x03
/* Return information about controller. */
#define GC_GETID 0x00
#define GC_GETID_REPLY_LENGTH 3
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/* 3-byte get status command. Returns axis and buttons. Also
* controls motor. */
#define GC_GETSTATUS1 0x40
#define GC_GETSTATUS2 0x03
#define GC_GETSTATUS3(rumbling) ((rumbling) ? 0x01 : 0x00)
#define GC_GETSTATUS_REPLY_LENGTH 8
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/* 3-byte poll keyboard command.
* Source: http://hitmen.c02.at/files/yagcd/yagcd/chap9.html#sec9.3.3
* */
#define GC_POLL_KB1 0x54
#define GC_POLL_KB2 0x00
#define GC_POLL_KB3 0x00
/* Gamecube keycodes are from table 9.3.2:
* http://hitmen.c02.at/files/yagcd/yagcd/chap9.html#sec9.3.2
*
* But the table appears to have been built using a PC keyboard
* converted (Tototek).
*
* I was working with an ASCII keyboard so I made a few adjustments
* to reflect the /real/ key functions. For instance:
*
* LWIN, RWIN and MENU are in fact the Henkan, muhenkan and katakana/hiragana keys.
* They are equivalemnt to the HID keys International 4, International 5 and International 2.
* The - key (code 0x3F) is also HID international 1.
* The PrntScrn key (code 0x36) is in fact the Yen key (International 3).
* The bracket/brace [{ and }] keys are at different places on this Japanese keyboard,
* but following standard PC practice, some keycodes are named after the US usage. Hence,
* the aforementioned keys are the 2 keys right of P, even if they are not labeled.
*/
#define GC_KEY_RESERVED 0x00 // No key
#define GC_KEY_HOME 0x06
#define GC_KEY_END 0x07
#define GC_KEY_PGUP 0x08
#define GC_KEY_PGDN 0x09
#define GC_KEY_SCROLL_LOCK 0x0A
#define GC_KEY_A 0x10
#define GC_KEY_B 0x11
#define GC_KEY_C 0x12
#define GC_KEY_D 0x13
#define GC_KEY_E 0x14
#define GC_KEY_F 0x15
#define GC_KEY_G 0x16
#define GC_KEY_H 0x17
#define GC_KEY_I 0x18
#define GC_KEY_J 0x19
#define GC_KEY_K 0x1A
#define GC_KEY_L 0x1B
#define GC_KEY_M 0x1C
#define GC_KEY_N 0x1D
#define GC_KEY_O 0x1E
#define GC_KEY_P 0x1F
#define GC_KEY_Q 0x20
#define GC_KEY_R 0x21
#define GC_KEY_S 0x22
#define GC_KEY_T 0x23
#define GC_KEY_U 0x24
#define GC_KEY_V 0x25
#define GC_KEY_W 0x26
#define GC_KEY_X 0x27
#define GC_KEY_Y 0x28
#define GC_KEY_Z 0x29
#define GC_KEY_1 0x2A
#define GC_KEY_2 0x2B
#define GC_KEY_3 0x2C
#define GC_KEY_4 0x2D
#define GC_KEY_5 0x2E
#define GC_KEY_6 0x2F
#define GC_KEY_7 0x30
#define GC_KEY_8 0x31
#define GC_KEY_9 0x32
#define GC_KEY_0 0x33
#define GC_KEY_DASH_UNDERSCORE 0x34 // Key next to 0
#define GC_KEY_PLUS_EQUAL 0x35
#define GC_KEY_YEN 0x36 // Yen on ascii keyboard. HID International 3.
#define GC_KEY_OPEN_BRKT_BRACE 0x37 // 1st key right of P
#define GC_KEY_CLOSE_BRKT_BRACE 0x38 // 2nd key right of P
#define GC_KEY_SEMI_COLON_COLON 0x39 // ;:
#define GC_KEY_QUOTES 0x3A // '"
// The 3rd key after 'L'. HID Keyboard non-us # and ~
#define GC_KEY_BRACKET_MU 0x3B
#define GC_KEY_COMMA_ST 0x3C // ,<
#define GC_KEY_PERIOD_GT 0x3D // .>
#define GC_KEY_SLASH_QUESTION 0x3E // /?
// (The extra key before right-shift on japanese keyboards.
// HID code International 1 [HID usage tables Footnote 15-20]).
#define GC_KEY_INTERNATIONAL1 0x3F
#define GC_KEY_F1 0x40
#define GC_KEY_F2 0x41
#define GC_KEY_F3 0x42
#define GC_KEY_F4 0x43
#define GC_KEY_F5 0x44
#define GC_KEY_F6 0x45
#define GC_KEY_F7 0x46
#define GC_KEY_F8 0x47
#define GC_KEY_F9 0x48
#define GC_KEY_F10 0x49
#define GC_KEY_F11 0x4A
#define GC_KEY_F12 0x4B
#define GC_KEY_ESC 0x4C
#define GC_KEY_INSERT 0x4D
#define GC_KEY_DELETE 0x4E
// (Hankaku/zenkaku/kanji button). Also known as `~
#define GC_KEY_HANKAKU 0x4F
#define GC_KEY_BACKSPACE 0x50
#define GC_KEY_TAB 0x51
#define GC_KEY_CAPS_LOCK 0x53
#define GC_KEY_LEFT_SHIFT 0x54
#define GC_KEY_RIGHT_SHIFT 0x55
#define GC_KEY_LEFT_CTRL 0x56
#define GC_KEY_LEFT_ALT 0x57
#define GC_KEY_MUHENKAN 0x58 // HID international 5
#define GC_KEY_SPACE 0x59
#define GC_KEY_HENKAN 0x5A // HID international 4
#define GC_KEY_KANA 0x5B // HID international 2
#define GC_KEY_LEFT 0x5C
#define GC_KEY_DOWN 0x5D
#define GC_KEY_UP 0x5E
#define GC_KEY_RIGHT 0x5F
#define GC_KEY_ENTER 0x61
void gcn64protocol_hwinit(void);
#define GCN64_CHANNEL_0 0
#define GCN64_CHANNEL_1 1
#define GCN64_CHANNEL_2 2
#define GCN64_CHANNEL_3 3
int gcn64_detectController(unsigned char chn);
unsigned char gcn64_transaction(unsigned char chn, const unsigned char *tx, int tx_len, unsigned char *rx, unsigned char rx_max);
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#endif // _gcn64_protocol_h__