diff options
| author | Marti Bolivar <mbolivar@leaflabs.com> | 2012-06-03 02:48:57 -0400 |
|---|---|---|
| committer | Marti Bolivar <mbolivar@leaflabs.com> | 2012-06-03 22:40:39 -0400 |
| commit | 4a53794f1afbb9951bd87f413c64614d1006294c (patch) | |
| tree | 210c6472de86c8a95061a1ee81780021bbf32ba1 /wirish/include | |
| parent | ccd1ca1403490db05cf02696e1b5430147fc2805 (diff) | |
| download | librambutan-4a53794f1afbb9951bd87f413c64614d1006294c.tar.gz librambutan-4a53794f1afbb9951bd87f413c64614d1006294c.zip | |
<wirish/boards.h>: Add feature test macros for SPI.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
Diffstat (limited to 'wirish/include')
| -rw-r--r-- | wirish/include/wirish/boards.h | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/wirish/include/wirish/boards.h b/wirish/include/wirish/boards.h index 2da252d..69e8882 100644 --- a/wirish/include/wirish/boards.h +++ b/wirish/include/wirish/boards.h @@ -117,8 +117,9 @@ bool boardUsesPin(uint8 pin); /** * @brief Does the board break out a USART/UART's RX and TX pins? * - * BOARD_HAVE_USART(n) is nonzero iff USARTn is available. Also see - * BOARD_HAVE_USART1, ..., BOARD_HAVE_UART4 (sic), etc. + * BOARD_HAVE_USART(n) is nonzero iff USARTn is available (n must be + * an integer literal, 1 through 6). Also see BOARD_HAVE_USART1, ..., + * BOARD_HAVE_UART4 (sic), etc. */ #define BOARD_HAVE_USART(n) (defined(BOARD_USART##n##_TX_PIN) && \ defined(BOARD_USART##n##_RX_PIN)) @@ -135,4 +136,21 @@ bool boardUsesPin(uint8 pin); /** Feature test: nonzero iff the board has USART6, 0 otherwise. */ #define BOARD_HAVE_USART6 BOARD_HAVE_USART(6) +/** + * @brief Does the board break out a SPI peripheral's pins? + * + * BOARD_HAVE_SPI(n) is nonzero iff SPIn is available (n must be an + * integer literal: 1, 2, or 3). Also see BOARD_HAVE_SPI1, + * BOARD_HAVE_SPI2, BOARD_HAVE_SPI3. */ +#define BOARD_HAVE_SPI(n) (defined(BOARD_SPI##n##_NSS_PIN) && \ + defined(BOARD_SPI##n##_SCK_PIN) && \ + defined(BOARD_SPI##n##_MISO_PIN) && \ + defined(BOARD_SPI##n##_MOSI_PIN)) +/** Feature test: nonzero iff the board has SPI1. */ +#define BOARD_HAVE_SPI1 BOARD_HAVE_SPI(1) +/** Feature test: nonzero iff the board has SPI2. */ +#define BOARD_HAVE_SPI2 BOARD_HAVE_SPI(2) +/** Feature test: nonzero iff the board has SPI3. */ +#define BOARD_HAVE_SPI3 BOARD_HAVE_SPI(3) + #endif |