1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * display7seg - Driver interface for the 7-segment display 5*4882a593Smuzhiyun * present on Sun Microsystems CP1400 and CP1500 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Copyright (c) 2000 Eric Brower <ebrower@usa.net> 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun */ 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #ifndef __display7seg_h__ 12*4882a593Smuzhiyun #define __display7seg_h__ 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #define D7S_IOC 'p' 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #define D7SIOCRD _IOR(D7S_IOC, 0x45, int) /* Read device state */ 17*4882a593Smuzhiyun #define D7SIOCWR _IOW(D7S_IOC, 0x46, int) /* Write device state */ 18*4882a593Smuzhiyun #define D7SIOCTM _IO (D7S_IOC, 0x47) /* Translate mode (FLIP)*/ 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun /* 21*4882a593Smuzhiyun * ioctl flag definitions 22*4882a593Smuzhiyun * 23*4882a593Smuzhiyun * POINT - Toggle decimal point (0=absent 1=present) 24*4882a593Smuzhiyun * ALARM - Toggle alarm LED (0=green 1=red) 25*4882a593Smuzhiyun * FLIP - Toggle inverted mode (0=normal 1=flipped) 26*4882a593Smuzhiyun * bits 0-4 - Character displayed (see definitions below) 27*4882a593Smuzhiyun * 28*4882a593Smuzhiyun * Display segments are defined as follows, 29*4882a593Smuzhiyun * subject to D7S_FLIP register state: 30*4882a593Smuzhiyun * 31*4882a593Smuzhiyun * a 32*4882a593Smuzhiyun * --- 33*4882a593Smuzhiyun * f| |b 34*4882a593Smuzhiyun * -g- 35*4882a593Smuzhiyun * e| |c 36*4882a593Smuzhiyun * --- 37*4882a593Smuzhiyun * d 38*4882a593Smuzhiyun */ 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun #define D7S_POINT (1 << 7) /* Decimal point*/ 41*4882a593Smuzhiyun #define D7S_ALARM (1 << 6) /* Alarm LED */ 42*4882a593Smuzhiyun #define D7S_FLIP (1 << 5) /* Flip display */ 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun #define D7S_0 0x00 /* Numerals 0-9 */ 45*4882a593Smuzhiyun #define D7S_1 0x01 46*4882a593Smuzhiyun #define D7S_2 0x02 47*4882a593Smuzhiyun #define D7S_3 0x03 48*4882a593Smuzhiyun #define D7S_4 0x04 49*4882a593Smuzhiyun #define D7S_5 0x05 50*4882a593Smuzhiyun #define D7S_6 0x06 51*4882a593Smuzhiyun #define D7S_7 0x07 52*4882a593Smuzhiyun #define D7S_8 0x08 53*4882a593Smuzhiyun #define D7S_9 0x09 54*4882a593Smuzhiyun #define D7S_A 0x0A /* Letters A-F, H, L, P */ 55*4882a593Smuzhiyun #define D7S_B 0x0B 56*4882a593Smuzhiyun #define D7S_C 0x0C 57*4882a593Smuzhiyun #define D7S_D 0x0D 58*4882a593Smuzhiyun #define D7S_E 0x0E 59*4882a593Smuzhiyun #define D7S_F 0x0F 60*4882a593Smuzhiyun #define D7S_H 0x10 61*4882a593Smuzhiyun #define D7S_E2 0x11 62*4882a593Smuzhiyun #define D7S_L 0x12 63*4882a593Smuzhiyun #define D7S_P 0x13 64*4882a593Smuzhiyun #define D7S_SEGA 0x14 /* Individual segments */ 65*4882a593Smuzhiyun #define D7S_SEGB 0x15 66*4882a593Smuzhiyun #define D7S_SEGC 0x16 67*4882a593Smuzhiyun #define D7S_SEGD 0x17 68*4882a593Smuzhiyun #define D7S_SEGE 0x18 69*4882a593Smuzhiyun #define D7S_SEGF 0x19 70*4882a593Smuzhiyun #define D7S_SEGG 0x1A 71*4882a593Smuzhiyun #define D7S_SEGABFG 0x1B /* Segment groupings */ 72*4882a593Smuzhiyun #define D7S_SEGCDEG 0x1C 73*4882a593Smuzhiyun #define D7S_SEGBCEF 0x1D 74*4882a593Smuzhiyun #define D7S_SEGADG 0x1E 75*4882a593Smuzhiyun #define D7S_BLANK 0x1F /* Clear all segments */ 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun #define D7S_MIN_VAL 0x0 78*4882a593Smuzhiyun #define D7S_MAX_VAL 0x1F 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun #endif /* ifndef __display7seg_h__ */ 81