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Diffstat (limited to 'nuttx/arch/x86/src/qemu/qemu_internal.h')
| -rwxr-xr-x | nuttx/arch/x86/src/qemu/qemu_internal.h | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/nuttx/arch/x86/src/qemu/qemu_internal.h b/nuttx/arch/x86/src/qemu/qemu_internal.h new file mode 100755 index 000000000..601f84b77 --- /dev/null +++ b/nuttx/arch/x86/src/qemu/qemu_internal.h @@ -0,0 +1,389 @@ +/************************************************************************************ + * arch/x86/src/qemu/qemu_internal.h + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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_X86_SRC_QEMU_QEMU_INTERNAL_H +#define __ARCH_X86_SRC_QEMU_QEMU_INTERNAL_H + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include <nuttx/config.h> +#include <nuttx/compiler.h> + +#include <sys/types.h> +#include <stdint.h> +#include <stdbool.h> + +#include "up_internal.h" +#include "chip.h" + +/************************************************************************************ + * Definitions + ************************************************************************************/ + +/* Configuration ********************************************************************/ + +/************************************************************************************ + * Public Types + ************************************************************************************/ + +/************************************************************************************ + * Inline Functions + ************************************************************************************/ + +#ifndef __ASSEMBLY__ + +/************************************************************************************ + * Public Data + ************************************************************************************/ + +#undef EXTERN +#if defined(__cplusplus) +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif + +/************************************************************************************ + * Public Function Prototypes + ************************************************************************************/ + +/************************************************************************************ + * Name: i486_clockconfig + * + * Description: + * Called to initialize the LPC17XX. This does whatever setup is needed to put the + * MCU in a usable state. This includes the initialization of clocking using the + * settings in board.h. + * + ************************************************************************************/ + +EXTERN void i486_clockconfig(void); + +/************************************************************************************ + * Name: i486_lowsetup + * + * Description: + * Called at the very beginning of _start. Performs low level initialization + * including setup of the console UART. This UART done early so that the serial + * console is available for debugging very early in the boot sequence. + * + ************************************************************************************/ + +EXTERN void i486_lowsetup(void); + +/************************************************************************************ + * Name: i486_gpioirqinitialize + * + * Description: + * Initialize logic to support a second level of interrupt decoding for GPIO pins. + * + ************************************************************************************/ + +#ifdef CONFIG_GPIO_IRQ +EXTERN void i486_gpioirqinitialize(void); +#else +# define i486_gpioirqinitialize() +#endif + +/************************************************************************************ + * Name: i486_configgpio + * + * Description: + * Configure a GPIO pin based on bit-encoded description of the pin. + * + ************************************************************************************/ + +EXTERN int i486_configgpio(uint16_t cfgset); + +/************************************************************************************ + * Name: i486_gpiowrite + * + * Description: + * Write one or zero to the selected GPIO pin + * + ************************************************************************************/ + +EXTERN void i486_gpiowrite(uint16_t pinset, bool value); + +/************************************************************************************ + * Name: i486_gpioread + * + * Description: + * Read one or zero from the selected GPIO pin + * + ************************************************************************************/ + +EXTERN bool i486_gpioread(uint16_t pinset); + +/************************************************************************************ + * Name: i486_gpioirqenable + * + * Description: + * Enable the interrupt for specified GPIO IRQ + * + ************************************************************************************/ + +#ifdef CONFIG_GPIO_IRQ +EXTERN void i486_gpioirqenable(int irq); +#else +# define i486_gpioirqenable(irq) +#endif + +/************************************************************************************ + * Name: i486_gpioirqdisable + * + * Description: + * Disable the interrupt for specified GPIO IRQ + * + ************************************************************************************/ + +#ifdef CONFIG_GPIO_IRQ +EXTERN void i486_gpioirqdisable(int irq); +#else +# define i486_gpioirqdisable(irq) +#endif + +/************************************************************************************ + * Function: i486_dumpgpio + * + * Description: + * Dump all GPIO registers associated with the base address of the provided pinset. + * + ************************************************************************************/ + +#ifdef CONFIG_DEBUG_GPIO +EXTERN int i486_dumpgpio(uint16_t pinset, const char *msg); +#else +# define i486_dumpgpio(p,m) +#endif + +/************************************************************************************ + * Name: i486_spi/ssp0/ssp1select, i486_spi/ssp0/ssp1status, and + * i486_spi/ssp0/ssp1cmddata + * + * Description: + * These external functions must be provided by board-specific logic. They 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 LPC17xx logic. To use + * this common SPI logic on your board: + * + * 1. Provide logic in i486_boardinitialize() to configure SPI/SSP chip select + * pins. + * 2. Provide i486_spi/ssp0/ssp1select() and i486_spi/ssp0/ssp1status() functions + * in your board-specific logic. These functions will perform chip selection + * and status operations using GPIOs in the way your board is configured. + * 2. If CONFIG_SPI_CMDDATA is defined in the NuttX configuration, provide + * i486_spi/ssp0/ssp1cmddata() functions in your board-specific logic. These + * functions will perform cmd/data selection operations using GPIOs in the way + * your board is configured. + * 3. Add a call to up_spiinitialize() in your low level application + * initialization logic + * 4. 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). + * + ************************************************************************************/ + +struct spi_dev_s; +enum spi_dev_e; + +#ifdef CONFIG_I486_SPI +EXTERN void i486_spiselect(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected); +EXTERN uint8_t i486_spistatus(FAR struct spi_dev_s *dev, enum spi_dev_e devid); +#ifdef CONFIG_SPI_CMDDATA +EXTERN int i486_spicmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd); +#endif +#endif + +/**************************************************************************** + * Name: ssp_flush + * + * Description: + * Flush and discard any words left in the RX fifo. This can be called + * from ssp0/1select after a device is deselected (if you worry about such + * things). + * + * Input Parameters: + * dev - Device-specific state data + * + * Returned Value: + * None + * + ****************************************************************************/ + +struct spi_dev_s; +#ifdef CONFIG_I486_SPI +EXTERN void spi_flush(FAR struct spi_dev_s *dev); +#endif +#if defined(CONFIG_I486_SSP0) || defined(CONFIG_I486_SSP1) +EXTERN void ssp_flush(FAR struct spi_dev_s *dev); +#endif + +/**************************************************************************** + * Name: i486_dmainitialize + * + * Description: + * Initialize the GPDMA subsystem. + * + * Returned Value: + * None + * + ****************************************************************************/ + +#ifdef CONFIG_I486_GPDMA +EXTERN void i486_dmainitilaize(void); +#endif + +/**************************************************************************** + * Name: i486_dmachannel + * + * Description: + * Allocate a DMA channel. This function sets aside a DMA channel and + * gives the caller exclusive access to the DMA channel. + * + * Returned Value: + * One success, this function returns a non-NULL, void* DMA channel + * handle. NULL is returned on any failure. This function can fail only + * if no DMA channel is available. + * + ****************************************************************************/ + +#ifdef CONFIG_I486_GPDMA +EXTERN DMA_HANDLE i486_dmachannel(void); +#endif + +/**************************************************************************** + * Name: i486_dmafree + * + * Description: + * Release a DMA channel. NOTE: The 'handle' used in this argument must + * NEVER be used again until i486_dmachannel() is called again to re-gain + * a valid handle. + * + * Returned Value: + * None + * + ****************************************************************************/ + +#ifdef CONFIG_I486_GPDMA +EXTERN void i486_dmafree(DMA_HANDLE handle); +#endif + +/**************************************************************************** + * Name: i486_dmasetup + * + * Description: + * Configure DMA for one transfer. + * + ****************************************************************************/ + +#ifdef CONFIG_I486_GPDMA +EXTERN int i486_dmarxsetup(DMA_HANDLE handle, + uint32_t control, uint32_t config, + uint32_t srcaddr, uint32_t destaddr, + size_t nbytes); +#endif + +/**************************************************************************** + * Name: i486_dmastart + * + * Description: + * Start the DMA transfer + * + ****************************************************************************/ + +#ifdef CONFIG_I486_GPDMA +EXTERN int i486_dmastart(DMA_HANDLE handle, dma_callback_t callback, void *arg); +#endif + +/**************************************************************************** + * Name: i486_dmastop + * + * Description: + * Cancel the DMA. After i486_dmastop() is called, the DMA channel is + * reset and i486_dmasetup() must be called before i486_dmastart() can be + * called again + * + ****************************************************************************/ + +#ifdef CONFIG_I486_GPDMA +EXTERN void i486_dmastop(DMA_HANDLE handle); +#endif + +/**************************************************************************** + * Name: i486_dmasample + * + * Description: + * Sample DMA register contents + * + ****************************************************************************/ + +#ifdef CONFIG_I486_GPDMA +#ifdef CONFIG_DEBUG_DMA +EXTERN void i486_dmasample(DMA_HANDLE handle, struct i486_dmaregs_s *regs); +#else +# define i486_dmasample(handle,regs) +#endif +#endif + +/**************************************************************************** + * Name: i486_dmadump + * + * Description: + * Dump previously sampled DMA register contents + * + ****************************************************************************/ + +#ifdef CONFIG_I486_GPDMA +#ifdef CONFIG_DEBUG_DMA +EXTERN void i486_dmadump(DMA_HANDLE handle, const struct i486_dmaregs_s *regs, + const char *msg); +#else +# define i486_dmadump(handle,regs,msg) +#endif +#endif + +#undef EXTERN +#if defined(__cplusplus) +} +#endif + +#endif /* __ASSEMBLY__ */ +#endif /* __ARCH_X86_SRC_QEMU_QEMU_INTERNAL_H */ |