diff options
Diffstat (limited to 'examples/io/pads/spi.h')
| -rw-r--r-- | examples/io/pads/spi.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/examples/io/pads/spi.h b/examples/io/pads/spi.h index c50e065..7d4d75b 100644 --- a/examples/io/pads/spi.h +++ b/examples/io/pads/spi.h @@ -9,8 +9,9 @@ #include <stdint.h> #include <psxpad.h> -// Maximum request/response length (34 bytes for pads, 140 for memory cards) -//#define SPI_BUFF_LEN 34 +// Maximum request/response length (34 bytes for pads, 140 for memory cards). +// Must be a multiple of 4 to avoid memory alignment issues. +//#define SPI_BUFF_LEN 36 #define SPI_BUFF_LEN 140 /* Request structures */ @@ -30,6 +31,10 @@ typedef struct _SPI_Request { /* Public API */ +#ifdef __cplusplus +extern "C" { +#endif + /** * @brief Allocates a new request object and adds it to the request queue. The * object must be populated afterwards by setting the length, callback and @@ -49,7 +54,7 @@ void SPI_SetPollRate(uint32_t value); /** * @brief Installs the SPI and timer 2 interrupt handlers and starts the poll * timer. By default the polling rate is set to 250 Hz (125 Hz per port), - * however it can be changed at any time by calling spi_set_poll_rate(). + * however it can be changed at any time by calling SPI_SetPollRate(). * * The provided callback (if any) is called to report the result of poll * requests, which are issued automatically when no other request is in the @@ -59,4 +64,8 @@ void SPI_SetPollRate(uint32_t value); */ void SPI_Init(SPI_Callback callback); +#ifdef __cplusplus +} +#endif + #endif |