1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * 4 * display7seg - Driver interface for the 7-segment display 5 * present on Sun Microsystems CP1400 and CP1500 6 * 7 * Copyright (c) 2000 Eric Brower <ebrower@usa.net> 8 * 9 */ 10 11 #ifndef __display7seg_h__ 12 #define __display7seg_h__ 13 14 #define D7S_IOC 'p' 15 16 #define D7SIOCRD _IOR(D7S_IOC, 0x45, int) /* Read device state */ 17 #define D7SIOCWR _IOW(D7S_IOC, 0x46, int) /* Write device state */ 18 #define D7SIOCTM _IO (D7S_IOC, 0x47) /* Translate mode (FLIP)*/ 19 20 /* 21 * ioctl flag definitions 22 * 23 * POINT - Toggle decimal point (0=absent 1=present) 24 * ALARM - Toggle alarm LED (0=green 1=red) 25 * FLIP - Toggle inverted mode (0=normal 1=flipped) 26 * bits 0-4 - Character displayed (see definitions below) 27 * 28 * Display segments are defined as follows, 29 * subject to D7S_FLIP register state: 30 * 31 * a 32 * --- 33 * f| |b 34 * -g- 35 * e| |c 36 * --- 37 * d 38 */ 39 40 #define D7S_POINT (1 << 7) /* Decimal point*/ 41 #define D7S_ALARM (1 << 6) /* Alarm LED */ 42 #define D7S_FLIP (1 << 5) /* Flip display */ 43 44 #define D7S_0 0x00 /* Numerals 0-9 */ 45 #define D7S_1 0x01 46 #define D7S_2 0x02 47 #define D7S_3 0x03 48 #define D7S_4 0x04 49 #define D7S_5 0x05 50 #define D7S_6 0x06 51 #define D7S_7 0x07 52 #define D7S_8 0x08 53 #define D7S_9 0x09 54 #define D7S_A 0x0A /* Letters A-F, H, L, P */ 55 #define D7S_B 0x0B 56 #define D7S_C 0x0C 57 #define D7S_D 0x0D 58 #define D7S_E 0x0E 59 #define D7S_F 0x0F 60 #define D7S_H 0x10 61 #define D7S_E2 0x11 62 #define D7S_L 0x12 63 #define D7S_P 0x13 64 #define D7S_SEGA 0x14 /* Individual segments */ 65 #define D7S_SEGB 0x15 66 #define D7S_SEGC 0x16 67 #define D7S_SEGD 0x17 68 #define D7S_SEGE 0x18 69 #define D7S_SEGF 0x19 70 #define D7S_SEGG 0x1A 71 #define D7S_SEGABFG 0x1B /* Segment groupings */ 72 #define D7S_SEGCDEG 0x1C 73 #define D7S_SEGBCEF 0x1D 74 #define D7S_SEGADG 0x1E 75 #define D7S_BLANK 0x1F /* Clear all segments */ 76 77 #define D7S_MIN_VAL 0x0 78 #define D7S_MAX_VAL 0x1F 79 80 #endif /* ifndef __display7seg_h__ */ 81
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