diff options
Diffstat (limited to 'firmware/drivers/fmradio.c')
| -rw-r--r-- | firmware/drivers/fmradio.c | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/firmware/drivers/fmradio.c b/firmware/drivers/fmradio.c deleted file mode 100644 index a6d2e799cb..0000000000 --- a/firmware/drivers/fmradio.c +++ /dev/null | |||
| @@ -1,121 +0,0 @@ | |||
| 1 | /*************************************************************************** | ||
| 2 | * __________ __ ___. | ||
| 3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
| 4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
| 5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
| 6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
| 7 | * \/ \/ \/ \/ \/ | ||
| 8 | * $Id$ | ||
| 9 | * | ||
| 10 | * Copyright (C) 2002 by Linus Nielsen Feltzing | ||
| 11 | * | ||
| 12 | * This program is free software; you can redistribute it and/or | ||
| 13 | * modify it under the terms of the GNU General Public License | ||
| 14 | * as published by the Free Software Foundation; either version 2 | ||
| 15 | * of the License, or (at your option) any later version. | ||
| 16 | * | ||
| 17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
| 18 | * KIND, either express or implied. | ||
| 19 | * | ||
| 20 | ****************************************************************************/ | ||
| 21 | #include "lcd.h" | ||
| 22 | #include "sh7034.h" | ||
| 23 | #include "kernel.h" | ||
| 24 | #include "thread.h" | ||
| 25 | #include "debug.h" | ||
| 26 | #include "system.h" | ||
| 27 | #include "fmradio.h" | ||
| 28 | |||
| 29 | #if CONFIG_TUNER | ||
| 30 | |||
| 31 | /* Signals: | ||
| 32 | DI (Data In) - PB0 (doubles as data pin for the LCD) | ||
| 33 | CL (Clock) - PB1 (doubles as clock for the LCD) | ||
| 34 | CE (Chip Enable) - PB3 (also chip select for the LCD, but active low) | ||
| 35 | DO (Data Out) - PB4 | ||
| 36 | */ | ||
| 37 | |||
| 38 | /* cute little functions */ | ||
| 39 | #define CE_LO and_b(~0x08, PBDRL_ADDR) | ||
| 40 | #define CE_HI or_b(0x08, PBDRL_ADDR) | ||
| 41 | #define CL_LO and_b(~0x02, PBDRL_ADDR) | ||
| 42 | #define CL_HI or_b(0x02, PBDRL_ADDR) | ||
| 43 | #define DO (PBDR & 0x10) | ||
| 44 | #define DI_LO and_b(~0x01, PBDRL_ADDR) | ||
| 45 | #define DI_HI or_b(0x01, PBDRL_ADDR) | ||
| 46 | |||
| 47 | #define START or_b((0x08 | 0x02), PBDRL_ADDR) | ||
| 48 | |||
| 49 | /* delay loop */ | ||
| 50 | #define DELAY do { int _x; for(_x=0;_x<10;_x++);} while (0) | ||
| 51 | |||
| 52 | |||
| 53 | int fmradio_read(int addr) | ||
| 54 | { | ||
| 55 | int i; | ||
| 56 | int data = 0; | ||
| 57 | |||
| 58 | START; | ||
| 59 | |||
| 60 | /* First address bit */ | ||
| 61 | CL_LO; | ||
| 62 | if(addr & 2) | ||
| 63 | DI_HI; | ||
| 64 | else | ||
| 65 | DI_LO; | ||
| 66 | DELAY; | ||
| 67 | CL_HI; | ||
| 68 | DELAY; | ||
| 69 | |||
| 70 | /* Second address bit */ | ||
| 71 | CL_LO; | ||
| 72 | if(addr & 1) | ||
| 73 | DI_HI; | ||
| 74 | else | ||
| 75 | DI_LO; | ||
| 76 | DELAY; | ||
| 77 | CL_HI; | ||
| 78 | DELAY; | ||
| 79 | |||
| 80 | for(i = 0; i < 21;i++) | ||
| 81 | { | ||
| 82 | CL_LO; | ||
| 83 | DELAY; | ||
| 84 | data <<= 1; | ||
| 85 | data |= (DO)?1:0; | ||
| 86 | CL_HI; | ||
| 87 | DELAY; | ||
| 88 | } | ||
| 89 | |||
| 90 | CE_LO; | ||
| 91 | |||
| 92 | return data; | ||
| 93 | } | ||
| 94 | |||
| 95 | void fmradio_set(int addr, int data) | ||
| 96 | { | ||
| 97 | int i; | ||
| 98 | |||
| 99 | /* Include the address in the data */ | ||
| 100 | data |= addr << 21; | ||
| 101 | |||
| 102 | START; | ||
| 103 | |||
| 104 | for(i = 0; i < 23;i++) | ||
| 105 | { | ||
| 106 | CL_LO; | ||
| 107 | DELAY; | ||
| 108 | if(data & (1 << 22)) | ||
| 109 | DI_HI; | ||
| 110 | else | ||
| 111 | DI_LO; | ||
| 112 | |||
| 113 | data <<= 1; | ||
| 114 | CL_HI; | ||
| 115 | DELAY; | ||
| 116 | } | ||
| 117 | |||
| 118 | CE_LO; | ||
| 119 | } | ||
| 120 | |||
| 121 | #endif | ||