| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * arch/arm/mach-at91/include/mach/at91_adc.h |
| 3 | * |
| 4 | * Copyright (C) SAN People |
| 5 | * |
| 6 | * Analog-to-Digital Converter (ADC) registers. |
| 7 | * Based on AT91SAM9260 datasheet revision D. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | */ |
| 14 | |
| 15 | #ifndef AT91_ADC_H |
| 16 | #define AT91_ADC_H |
| 17 | |
| 18 | #define AT91_ADC_CR 0x00 /* Control Register */ |
| 19 | #define AT91_ADC_SWRST (1 << 0) /* Software Reset */ |
| 20 | #define AT91_ADC_START (1 << 1) /* Start Conversion */ |
| 21 | |
| 22 | #define AT91_ADC_MR 0x04 /* Mode Register */ |
| 23 | #define AT91_ADC_TRGEN (1 << 0) /* Trigger Enable */ |
| 24 | #define AT91_ADC_TRGSEL (7 << 1) /* Trigger Selection */ |
| 25 | #define AT91_ADC_TRGSEL_TC0 (0 << 1) |
| 26 | #define AT91_ADC_TRGSEL_TC1 (1 << 1) |
| 27 | #define AT91_ADC_TRGSEL_TC2 (2 << 1) |
| 28 | #define AT91_ADC_TRGSEL_EXTERNAL (6 << 1) |
| 29 | #define AT91_ADC_LOWRES (1 << 4) /* Low Resolution */ |
| 30 | #define AT91_ADC_SLEEP (1 << 5) /* Sleep Mode */ |
| 31 | #define AT91_ADC_PRESCAL (0x3f << 8) /* Prescalar Rate Selection */ |
| 32 | #define AT91_ADC_PRESCAL_(x) ((x) << 8) |
| 33 | #define AT91_ADC_STARTUP (0x1f << 16) /* Startup Up Time */ |
| 34 | #define AT91_ADC_STARTUP_(x) ((x) << 16) |
| 35 | #define AT91_ADC_SHTIM (0xf << 24) /* Sample & Hold Time */ |
| 36 | #define AT91_ADC_SHTIM_(x) ((x) << 24) |
| 37 | |
| 38 | #define AT91_ADC_CHER 0x10 /* Channel Enable Register */ |
| 39 | #define AT91_ADC_CHDR 0x14 /* Channel Disable Register */ |
| 40 | #define AT91_ADC_CHSR 0x18 /* Channel Status Register */ |
| 41 | #define AT91_ADC_CH(n) (1 << (n)) /* Channel Number */ |
| 42 | |
| 43 | #define AT91_ADC_SR 0x1C /* Status Register */ |
| 44 | #define AT91_ADC_EOC(n) (1 << (n)) /* End of Conversion on Channel N */ |
| 45 | #define AT91_ADC_OVRE(n) (1 << ((n) + 8))/* Overrun Error on Channel N */ |
| 46 | #define AT91_ADC_DRDY (1 << 16) /* Data Ready */ |
| 47 | #define AT91_ADC_GOVRE (1 << 17) /* General Overrun Error */ |
| 48 | #define AT91_ADC_ENDRX (1 << 18) /* End of RX Buffer */ |
| 49 | #define AT91_ADC_RXFUFF (1 << 19) /* RX Buffer Full */ |
| 50 | |
| 51 | #define AT91_ADC_LCDR 0x20 /* Last Converted Data Register */ |
| 52 | #define AT91_ADC_LDATA (0x3ff) |
| 53 | |
| 54 | #define AT91_ADC_IER 0x24 /* Interrupt Enable Register */ |
| 55 | #define AT91_ADC_IDR 0x28 /* Interrupt Disable Register */ |
| 56 | #define AT91_ADC_IMR 0x2C /* Interrupt Mask Register */ |
| 57 | |
| 58 | #define AT91_ADC_CHR(n) (0x30 + ((n) * 4)) /* Channel Data Register N */ |
| 59 | #define AT91_ADC_DATA (0x3ff) |
| 60 | |
| 61 | #endif |