diff options
author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-09-17 18:18:44 +0000 |
---|---|---|
committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-09-17 18:18:44 +0000 |
commit | 57623d42ebb04f0a0b9e6eb7c0847a3ece2aa0ff (patch) | |
tree | 25d07d14e920d31c0b1947c9ca586f2a01fc32d8 /nuttx/arch/arm/src/stm32/chip/stm32_spi.h | |
download | px4-firmware-57623d42ebb04f0a0b9e6eb7c0847a3ece2aa0ff.tar.gz px4-firmware-57623d42ebb04f0a0b9e6eb7c0847a3ece2aa0ff.tar.bz2 px4-firmware-57623d42ebb04f0a0b9e6eb7c0847a3ece2aa0ff.zip |
Resync new repository with old repo r5166
git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5153 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/arm/src/stm32/chip/stm32_spi.h')
-rw-r--r-- | nuttx/arch/arm/src/stm32/chip/stm32_spi.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/stm32/chip/stm32_spi.h b/nuttx/arch/arm/src/stm32/chip/stm32_spi.h new file mode 100644 index 000000000..d80c447bb --- /dev/null +++ b/nuttx/arch/arm/src/stm32/chip/stm32_spi.h @@ -0,0 +1,205 @@ +/************************************************************************************ + * arch/arm/src/stm32/chip/stm32_spi.h + * + * Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************************************/ + +#ifndef __ARCH_ARM_STC_STM32_CHIP_STM32_SPI_H +#define __ARCH_ARM_STC_STM32_CHIP_STM32_SPI_H + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include <nuttx/config.h> +#include "chip.h" + +/************************************************************************************ + * Pre-processor Definitions + ************************************************************************************/ + +#define STM32_SPI_CLK_MAX 18000000UL /* Maximum allowed speed as per specifications for all SPIs */ + +/* Register Offsets *****************************************************************/ + +#define STM32_SPI_CR1_OFFSET 0x0000 /* SPI Control Register 1 (16-bit) */ +#define STM32_SPI_CR2_OFFSET 0x0004 /* SPI control register 2 (16-bit) */ +#define STM32_SPI_SR_OFFSET 0x0008 /* SPI status register (16-bit) */ +#define STM32_SPI_DR_OFFSET 0x000c /* SPI data register (16-bit) */ +#define STM32_SPI_CRCPR_OFFSET 0x0010 /* SPI CRC polynomial register (16-bit) */ +#define STM32_SPI_RXCRCR_OFFSET 0x0014 /* SPI Rx CRC register (16-bit) */ +#define STM32_SPI_TXCRCR_OFFSET 0x0018 /* SPI Tx CRC register (16-bit) */ + +#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX) +# define STM32_SPI_I2SCFGR_OFFSET 0x001c /* I2S configuration register */ +# define STM32_SPI_I2SPR_OFFSET 0x0020 /* I2S prescaler register */ +#endif + +/* Register Addresses ***************************************************************/ + +#if STM32_NSPI > 0 +# define STM32_SPI1_CR1 (STM32_SPI1_BASE+STM32_SPI_CR1_OFFSET) +# define STM32_SPI1_CR2 (STM32_SPI1_BASE+STM32_SPI_CR2_OFFSET) +# define STM32_SPI1_SR (STM32_SPI1_BASE+STM32_SPI_SR_OFFSET) +# define STM32_SPI1_DR (STM32_SPI1_BASE+STM32_SPI_DR_OFFSET) +# define STM32_SPI1_CRCPR (STM32_SPI1_BASE+STM32_SPI_CRCPR_OFFSET) +# define STM32_SPI1_RXCRCR (STM32_SPI1_BASE+STM32_SPI_RXCRCR_OFFSET) +# define STM32_SPI1_TXCRCR (STM32_SPI1_BASE+STM32_SPI_TXCRCR_OFFSET) +#endif + +#if STM32_NSPI > 1 +# define STM32_SPI2_CR1 (STM32_SPI2_BASE+STM32_SPI_CR1_OFFSET) +# define STM32_SPI2_CR2 (STM32_SPI2_BASE+STM32_SPI_CR2_OFFSET) +# define STM32_SPI2_SR (STM32_SPI2_BASE+STM32_SPI_SR_OFFSET) +# define STM32_SPI2_DR (STM32_SPI2_BASE+STM32_SPI_DR_OFFSET) +# define STM32_SPI2_CRCPR (STM32_SPI2_BASE+STM32_SPI_CRCPR_OFFSET) +# define STM32_SPI2_RXCRCR (STM32_SPI2_BASE+STM32_SPI_RXCRCR_OFFSET) +# define STM32_SPI2_TXCRCR (STM32_SPI2_BASE+STM32_SPI_TXCRCR_OFFSET) +# if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX) +# define STM32_SPI2_I2SCFGR (STM32_SPI2_BASE+STM32_SPI_I2SCFGR_OFFSET) +# define STM32_SPI2_I2SPR (STM32_SPI2_BASE+STM32_SPI_I2SPR_OFFSET) +# endif +#endif + +#if STM32_NSPI > 2 +# define STM32_SPI3_CR1 (STM32_SPI3_BASE+STM32_SPI_CR1_OFFSET) +# define STM32_SPI3_CR2 (STM32_SPI3_BASE+STM32_SPI_CR2_OFFSET) +# define STM32_SPI3_SR (STM32_SPI3_BASE+STM32_SPI_SR_OFFSET) +# define STM32_SPI3_DR (STM32_SPI3_BASE+STM32_SPI_DR_OFFSET) +# define STM32_SPI3_CRCPR (STM32_SPI3_BASE+STM32_SPI_CRCPR_OFFSET) +# define STM32_SPI3_RXCRCR (STM32_SPI3_BASE+STM32_SPI_RXCRCR_OFFSET) +# define STM32_SPI3_TXCRCR (STM32_SPI3_BASE+STM32_SPI_TXCRCR_OFFSET) +# if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX) +# define STM32_SPI3_I2SCFGR (STM32_SPI3_BASE+STM32_SPI_I2SCFGR_OFFSET) +# define STM32_SPI3_I2SPR (STM32_SPI3_BASE+STM32_SPI_I2SPR_OFFSET) +# endif +#endif + +/* Register Bitfield Definitions ****************************************************/ + +/* SPI Control Register 1 */ + +#define SPI_CR1_CPHA (1 << 0) /* Bit 0: Clock Phase */ +#define SPI_CR1_CPOL (1 << 1) /* Bit 1: Clock Polarity */ +#define SPI_CR1_MSTR (1 << 2) /* Bit 2: Master Selection */ +#define SPI_CR1_BR_SHIFT (3) /* Bits 5:3 Baud Rate Control */ +#define SPI_CR1_BR_MASK (7 << SPI_CR1_BR_SHIFT) +# define SPI_CR1_FPCLCKd2 (0 << SPI_CR1_BR_SHIFT) /* 000: fPCLK/2 */ +# define SPI_CR1_FPCLCKd4 (1 << SPI_CR1_BR_SHIFT) /* 001: fPCLK/4 */ +# define SPI_CR1_FPCLCKd8 (2 << SPI_CR1_BR_SHIFT) /* 010: fPCLK/8 */ +# define SPI_CR1_FPCLCKd16 (3 << SPI_CR1_BR_SHIFT) /* 011: fPCLK/16 */ +# define SPI_CR1_FPCLCKd32 (4 << SPI_CR1_BR_SHIFT) /* 100: fPCLK/32 */ +# define SPI_CR1_FPCLCKd64 (5 << SPI_CR1_BR_SHIFT) /* 101: fPCLK/64 */ +# define SPI_CR1_FPCLCKd128 (6 << SPI_CR1_BR_SHIFT) /* 110: fPCLK/128 */ +# define SPI_CR1_FPCLCKd256 (7 << SPI_CR1_BR_SHIFT) /* 111: fPCLK/256 */ +#define SPI_CR1_SPE (1 << 6) /* Bit 6: SPI Enable */ +#define SPI_CR1_LSBFIRST (1 << 7) /* Bit 7: Frame Format */ +#define SPI_CR1_SSI (1 << 8) /* Bit 8: Internal slave select */ +#define SPI_CR1_SSM (1 << 9) /* Bit 9: Software slave management */ +#define SPI_CR1_RXONLY (1 << 10) /* Bit 10: Receive only */ +#define SPI_CR1_DFF (1 << 11) /* Bit 11: Data Frame Format */ +#define SPI_CR1_CRCNEXT (1 << 12) /* Bit 12: Transmit CRC next */ +#define SPI_CR1_CRCEN (1 << 13) /* Bit 13: Hardware CRC calculation enable */ +#define SPI_CR1_BIDIOE (1 << 14) /* Bit 14: Output enable in bidirectional mode */ +#define SPI_CR1_BIDIMODE (1 << 15) /* Bit 15: Bidirectional data mode enable */ + +/* SPI Control Register 2 */ + +#define SPI_CR2_RXDMAEN (1 << 0) /* Bit 0: Rx Buffer DMA Enable */ +#define SPI_CR2_TXDMAEN (1 << 1) /* Bit 1: Tx Buffer DMA Enable */ +#define SPI_CR2_SSOE (1 << 2) /* Bit 2: SS Output Enable */ + +#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX) +# define STM32_SPI3_FRF (1 << 4) /* Bit 4: Frame format */ +#endif + +#define SPI_CR2_ERRIE (1 << 5) /* Bit 5: Error interrupt enable */ +#define SPI_CR2_RXNEIE (1 << 6) /* Bit 6: RX buffer not empty interrupt enable */ +#define SPI_CR2_TXEIE (1 << 7) /* Bit 7: Tx buffer empty interrupt enable */ + +/* SPI status register */ + +#define SPI_SR_RXNE (1 << 0) /* Bit 0: Receive buffer not empty */ +#define SPI_SR_TXE (1 << 1) /* Bit 1: Transmit buffer empty */ + +#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX) +# define SPI_SR_CHSIDE (1 << 2) /* Bit 2: Channel side */ +# define SPI_SR_UDR (1 << 3) /* Bit 3: Underrun flag */ +#endif + +#define SPI_SR_CRCERR (1 << 4) /* Bit 4: CRC error flag */ +#define SPI_SR_MODF (1 << 5) /* Bit 5: Mode fault */ +#define SPI_SR_OVR (1 << 6) /* Bit 6: Overrun flag */ +#define SPI_SR_BSY (1 << 7) /* Bit 7: Busy flag */ + +#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX) +# define SPI_SR_TIFRFE (1 << 8) /* Bit 8: TI frame format error */ +#endif + +/* I2S configuration register */ + +#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX) +# define SPI_I2SCFGR_CHLEN (1 << 0) /* Bit 0: Channel length (number of bits per audio channel) */ +# define SPI_I2SCFGR_DATLEN_SHIFT (1) /* Bit 1-2: Data length to be transferred */ +# define SPI_I2SCFGR_DATLEN_MASK (3 << SPI_I2SCFGR_DATLEN_SHIFT) +# define SPI_I2SCFGR_DATLEN_16BIT (0 << SPI_I2SCFGR_DATLEN_SHIFT) /* 00: 16-bit data length */ +# define SPI_I2SCFGR_DATLEN_8BIT (1 << SPI_I2SCFGR_DATLEN_SHIFT) /* 01: 24-bit data length */ +# define SPI_I2SCFGR_DATLEN_32BIT (2 << SPI_I2SCFGR_DATLEN_SHIFT) /* 10: 32-bit data length */ +# define SPI_I2SCFGR_CKPOL (1 << 3) /* Bit 3: Steady state clock polarity */ +# define SPI_I2SCFGR_I2SSTD_SHIFT (4) /* Bit 4-5: I2S standard selection */ +# define SPI_I2SCFGR_I2SSTD_MASK (3 << SPI_I2SCFGR_I2SSTD_SHIFT) +# define SPI_I2SCFGR_I2SSTD_PHILLIPS (xx << SPI_I2SCFGR_I2SSTD_SHIFT) /* 00: I2S Phillips standard. */ +# define SPI_I2SCFGR_I2SSTD_MSB (0 << SPI_I2SCFGR_I2SSTD_SHIFT) /* 01: MSB justified standard (left justified) */ +# define SPI_I2SCFGR_I2SSTD_LSB (2 << SPI_I2SCFGR_I2SSTD_SHIFT) /* 10: LSB justified standard (right justified) */ +# define SPI_I2SCFGR_I2SSTD_PCM (3 << SPI_I2SCFGR_I2SSTD_SHIFT) /* 11: PCM standard */ +# define SPI_I2SCFGR_PCMSYNC (1 << 7) /* Bit 7: PCM frame synchronization */ +# define SPI_I2SCFGR_I2SCFG_SHIFT (8) /* Bit 8-9: I2S configuration mode */ +# define SPI_I2SCFGR_I2SCFG_MASK (3 << SPI_I2SCFGR_I2SCFG_SHIFT) +# define SPI_I2SCFGR_I2SCFG_STX (0 << SPI_I2SCFGR_I2SCFG_SHIFT) /* 00: Slave - transmit */ +# define SPI_I2SCFGR_I2SCFG_SRX (1 << SPI_I2SCFGR_I2SCFG_SHIFT) /* 01: Slave - receive */ +# define SPI_I2SCFGR_I2SCFG_MTX (2 << SPI_I2SCFGR_I2SCFG_SHIFT) /* 10: Master - transmit */ +# define SPI_I2SCFGR_I2SCFG_MRX (3 << SPI_I2SCFGR_I2SCFG_SHIFT) /* 11: Master - receive */ +# define SPI_I2SCFGR_I2SE (1 << 10) /* Bit 10: I2S Enable */ +# define SPI_I2SCFGR_I2SMOD (1 << 11) /* Bit 11: I2S mode selection */ +#endif + +/* I2S prescaler register */ + +#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX) +# define SPI_I2SPR_I2SDIV_SHIFT (0) /* Bit 0-7: I2S Linear prescaler */ +# define SPI_I2SPR_I2SDIV_MASK (0xff << SPI_I2SPR_I2SDIV_SHIFT) +# define SPI_I2SPR_ODD (1 << 8) /* Bit 8: Odd factor for the prescaler */ +# define SPI_I2SPR_MCKOE (1 << 9) /* Bit 9: Master clock output enable */ +#endif + +#endif /* __ARCH_ARM_STC_STM32_CHIP_STM32_SPI_H */ + |