aiot/waterHeterogeneousDataSynchronization/externalConnectionMonitoring/commandProcessing.c

/*
 * Copyright (C) 2005-2006 Atmel Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/dw_dmac.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/spi/spi.h>
#include <linux/usb/atmel_usba_udc.h>

#include <mach/atmel-mci.h>
#include <linux/atmel-mci.h>

#include <asm/io.h>
#include <asm/irq.h>

#include <mach/at32ap700x.h>
#include <mach/board.h>
#include <mach/hmatrix.h>
#include <mach/portmux.h>
#include <mach/sram.h>

#include <sound/atmel-abdac.h>
#include <sound/atmel-ac97c.h>

#include <video/atmel_lcdc.h>

#include "clock.h"
#include "pio.h"
#include "pm.h"


#define PBMEM(base)					\
	{						\
		.start		= base,			\
		.end		= base + 0x3ff,		\
		.flags		= IORESOURCE_MEM,	\
	}
#define IRQ(num)					\
	{						\
		.start		= num,			\
		.end		= num,			\
		.flags		= IORESOURCE_IRQ,	\
	}
#define NAMED_IRQ(num, _name)				\
	{						\
		.start		= num,			\
		.end		= num,			\
		.name		= _name,		\
		.flags		= IORESOURCE_IRQ,	\
	}

/* REVISIT these assume *every* device supports DMA, but several
 * don't ... tc, smc, pio, rtc, watchdog, pwm, ps2, and more.
 */
#define DEFINE_DEV(_name, _id)					\
static u64 _name##_id##_dma_mask = DMA_BIT_MASK(32);		\
static struct platform_device _name##_id##_device = {		\
	.name		= #_name,				\
	.id		= _id,					\
	.dev		= {					\
		.dma_mask = &_name##_id##_dma_mask,		\
		.coherent_dma_mask = DMA_BIT_MASK(32),		\
	},							\
	.resource	= _name##_id##_resource,		\
	.num_resources	= ARRAY_SIZE(_name##_id##_resource),	\
}
#define DEFINE_DEV_DATA(_name, _id)				\
static u64 _name##_id##_dma_mask = DMA_BIT_MASK(32);		\
static struct platform_device _name##_id##_device = {		\
	.name		= #_name,				\
	.id		= _id,					\
	.dev		= {					\
		.dma_mask = &_name##_id##_dma_mask,		\
		.platform_data	= &_name##_id##_data,		\
		.coherent_dma_mask = DMA_BIT_MASK(32),		\
	},							\
	.resource	= _name##_id##_resource,		\
	.num_resources	= ARRAY_SIZE(_name##_id##_resource),	\
}

#define select_peripheral(port, pin_mask, periph, flags)	\
	at32_select_periph(GPIO_##port##_BASE, pin_mask,	\
			   GPIO_##periph, flags)

#define DEV_CLK(_name, devname, bus, _index)			\
static struct clk devname##_##_name = {				\
	.name		= #_name,				\
	.dev		= &devname##_device.dev,		\
	.parent		= &bus##_clk,				\
	.mode		= bus##_clk_mode,			\
	.get_rate	= bus##_clk_get_rate,			\
	.index		= _index,				\
}

static DEFINE_SPINLOCK(pm_lock);

static struct clk osc0;
static struct clk osc1;

static unsigned long osc_get_rate(struct clk *clk)
{
	return at32_board_osc_rates[clk->index];
}

static unsigned long pll_get_rate(struct clk *clk, unsigned long control)
{
	unsigned long div, mul, rate;

	div = PM_BFEXT(PLLDIV, control) + 1;
	mul = PM_BFEXT(PLLMUL, control) + 1;

	rate = clk->parent->get_rate(clk->parent);
	rate = (rate + div / 2) / div;