diff options
Diffstat (limited to 'nuttx/arch/arm/src/stm32/stm32_internal.h')
| -rwxr-xr-x | nuttx/arch/arm/src/stm32/stm32_internal.h | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/nuttx/arch/arm/src/stm32/stm32_internal.h b/nuttx/arch/arm/src/stm32/stm32_internal.h index d7e40ba63..9c13f04ef 100755 --- a/nuttx/arch/arm/src/stm32/stm32_internal.h +++ b/nuttx/arch/arm/src/stm32/stm32_internal.h @@ -1,7 +1,7 @@ /************************************************************************************ * arch/arm/src/stm32/stm32_internal.h * - * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Copyright (C) 2009-2010 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <spudmonkey@racsa.co.cr> * * Redistribution and use in source and binary forms, with or without @@ -445,21 +445,25 @@ EXTERN int stm32_ethinitialize(int intf); * Name: stm32_spi1/2/3select and stm32_spi1/2/3status * * Description: - * The external functions, stm32_spi1/2/3select and stm32_spi1/2/3status must be - * provided by board-specific logic. They are implementations of the select - * and status methods of the SPI interface defined by struct spi_ops_s (see - * include/nuttx/spi.h). All other methods (including up_spiinitialize()) - * are provided by common STM32 logic. To use this common SPI logic on your - * board: + * The external functions, stm32_spi1/2/3select, stm32_spi1/2/3status, and + * stm32_spi1/2/3cmddata must be provided by board-specific logic. These are + * implementations of the select, status, and cmddata methods of the SPI interface + * defined by struct spi_ops_s (see include/nuttx/spi.h). All other methods + * (including up_spiinitialize()) are provided by common STM32 logic. To use this + * common SPI logic on your board: * * 1. Provide logic in stm32_boardinitialize() to configure SPI chip select * pins. * 2. Provide stm32_spi1/2/3select() and stm32_spi1/2/3status() functions in your * board-specific logic. These functions will perform chip selection and * status operations using GPIOs in the way your board is configured. - * 3. Add a calls to up_spiinitialize() in your low level application + * 3. If CONFIG_SPI_CMDDATA is defined in your NuttX configuration file, then + * provide stm32_spi1/2/3cmddata() functions in your board-specific logic. + * These functions will perform cmd/data selection operations using GPIOs in the + * way your board is configured. + * 4. Add a calls to up_spiinitialize() in your low level application * initialization logic - * 4. The handle returned by up_spiinitialize() may then be used to bind the + * 5. The handle returned by up_spiinitialize() may then be used to bind the * SPI driver to higher level logic (e.g., calling * mmcsd_spislotinitialize(), for example, will bind the SPI driver to * the SPI MMC/SD driver). @@ -470,10 +474,13 @@ struct spi_dev_s; enum spi_dev_e; EXTERN void stm32_spi1select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected); EXTERN uint8_t stm32_spi1status(FAR struct spi_dev_s *dev, enum spi_dev_e devid); +EXTERN int stm32_spi1cmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd); EXTERN void stm32_spi2select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected); EXTERN uint8_t stm32_spi2status(FAR struct spi_dev_s *dev, enum spi_dev_e devid); +EXTERN int stm32_spi2cmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd); EXTERN void stm32_spi3select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected); EXTERN uint8_t stm32_spi3status(FAR struct spi_dev_s *dev, enum spi_dev_e devid); +EXTERN int stm32_spi3cmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd); /************************************************************************************ * Name: stm32_usbpullup |