diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/mfd/mcp-core.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/mfd/mcp-core.c | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/ANDROID_3.4.5/drivers/mfd/mcp-core.c b/ANDROID_3.4.5/drivers/mfd/mcp-core.c deleted file mode 100644 index 62e5e361..00000000 --- a/ANDROID_3.4.5/drivers/mfd/mcp-core.c +++ /dev/null @@ -1,238 +0,0 @@ -/* - * linux/drivers/mfd/mcp-core.c - * - * Copyright (C) 2001 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License. - * - * Generic MCP (Multimedia Communications Port) layer. All MCP locking - * is solely held within this file. - */ -#include <linux/module.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/smp.h> -#include <linux/device.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/mfd/mcp.h> - - -#define to_mcp(d) container_of(d, struct mcp, attached_device) -#define to_mcp_driver(d) container_of(d, struct mcp_driver, drv) - -static int mcp_bus_match(struct device *dev, struct device_driver *drv) -{ - return 1; -} - -static int mcp_bus_probe(struct device *dev) -{ - struct mcp *mcp = to_mcp(dev); - struct mcp_driver *drv = to_mcp_driver(dev->driver); - - return drv->probe(mcp); -} - -static int mcp_bus_remove(struct device *dev) -{ - struct mcp *mcp = to_mcp(dev); - struct mcp_driver *drv = to_mcp_driver(dev->driver); - - drv->remove(mcp); - return 0; -} - -static struct bus_type mcp_bus_type = { - .name = "mcp", - .match = mcp_bus_match, - .probe = mcp_bus_probe, - .remove = mcp_bus_remove, -}; - -/** - * mcp_set_telecom_divisor - set the telecom divisor - * @mcp: MCP interface structure - * @div: SIB clock divisor - * - * Set the telecom divisor on the MCP interface. The resulting - * sample rate is SIBCLOCK/div. - */ -void mcp_set_telecom_divisor(struct mcp *mcp, unsigned int div) -{ - unsigned long flags; - - spin_lock_irqsave(&mcp->lock, flags); - mcp->ops->set_telecom_divisor(mcp, div); - spin_unlock_irqrestore(&mcp->lock, flags); -} -EXPORT_SYMBOL(mcp_set_telecom_divisor); - -/** - * mcp_set_audio_divisor - set the audio divisor - * @mcp: MCP interface structure - * @div: SIB clock divisor - * - * Set the audio divisor on the MCP interface. - */ -void mcp_set_audio_divisor(struct mcp *mcp, unsigned int div) -{ - unsigned long flags; - - spin_lock_irqsave(&mcp->lock, flags); - mcp->ops->set_audio_divisor(mcp, div); - spin_unlock_irqrestore(&mcp->lock, flags); -} -EXPORT_SYMBOL(mcp_set_audio_divisor); - -/** - * mcp_reg_write - write a device register - * @mcp: MCP interface structure - * @reg: 4-bit register index - * @val: 16-bit data value - * - * Write a device register. The MCP interface must be enabled - * to prevent this function hanging. - */ -void mcp_reg_write(struct mcp *mcp, unsigned int reg, unsigned int val) -{ - unsigned long flags; - - spin_lock_irqsave(&mcp->lock, flags); - mcp->ops->reg_write(mcp, reg, val); - spin_unlock_irqrestore(&mcp->lock, flags); -} -EXPORT_SYMBOL(mcp_reg_write); - -/** - * mcp_reg_read - read a device register - * @mcp: MCP interface structure - * @reg: 4-bit register index - * - * Read a device register and return its value. The MCP interface - * must be enabled to prevent this function hanging. - */ -unsigned int mcp_reg_read(struct mcp *mcp, unsigned int reg) -{ - unsigned long flags; - unsigned int val; - - spin_lock_irqsave(&mcp->lock, flags); - val = mcp->ops->reg_read(mcp, reg); - spin_unlock_irqrestore(&mcp->lock, flags); - - return val; -} -EXPORT_SYMBOL(mcp_reg_read); - -/** - * mcp_enable - enable the MCP interface - * @mcp: MCP interface to enable - * - * Enable the MCP interface. Each call to mcp_enable will need - * a corresponding call to mcp_disable to disable the interface. - */ -void mcp_enable(struct mcp *mcp) -{ - unsigned long flags; - spin_lock_irqsave(&mcp->lock, flags); - if (mcp->use_count++ == 0) - mcp->ops->enable(mcp); - spin_unlock_irqrestore(&mcp->lock, flags); -} -EXPORT_SYMBOL(mcp_enable); - -/** - * mcp_disable - disable the MCP interface - * @mcp: MCP interface to disable - * - * Disable the MCP interface. The MCP interface will only be - * disabled once the number of calls to mcp_enable matches the - * number of calls to mcp_disable. - */ -void mcp_disable(struct mcp *mcp) -{ - unsigned long flags; - - spin_lock_irqsave(&mcp->lock, flags); - if (--mcp->use_count == 0) - mcp->ops->disable(mcp); - spin_unlock_irqrestore(&mcp->lock, flags); -} -EXPORT_SYMBOL(mcp_disable); - -static void mcp_release(struct device *dev) -{ - struct mcp *mcp = container_of(dev, struct mcp, attached_device); - - kfree(mcp); -} - -struct mcp *mcp_host_alloc(struct device *parent, size_t size) -{ - struct mcp *mcp; - - mcp = kzalloc(sizeof(struct mcp) + size, GFP_KERNEL); - if (mcp) { - spin_lock_init(&mcp->lock); - device_initialize(&mcp->attached_device); - mcp->attached_device.parent = parent; - mcp->attached_device.bus = &mcp_bus_type; - mcp->attached_device.dma_mask = parent->dma_mask; - mcp->attached_device.release = mcp_release; - } - return mcp; -} -EXPORT_SYMBOL(mcp_host_alloc); - -int mcp_host_add(struct mcp *mcp, void *pdata) -{ - mcp->attached_device.platform_data = pdata; - dev_set_name(&mcp->attached_device, "mcp0"); - return device_add(&mcp->attached_device); -} -EXPORT_SYMBOL(mcp_host_add); - -void mcp_host_del(struct mcp *mcp) -{ - device_del(&mcp->attached_device); -} -EXPORT_SYMBOL(mcp_host_del); - -void mcp_host_free(struct mcp *mcp) -{ - put_device(&mcp->attached_device); -} -EXPORT_SYMBOL(mcp_host_free); - -int mcp_driver_register(struct mcp_driver *mcpdrv) -{ - mcpdrv->drv.bus = &mcp_bus_type; - return driver_register(&mcpdrv->drv); -} -EXPORT_SYMBOL(mcp_driver_register); - -void mcp_driver_unregister(struct mcp_driver *mcpdrv) -{ - driver_unregister(&mcpdrv->drv); -} -EXPORT_SYMBOL(mcp_driver_unregister); - -static int __init mcp_init(void) -{ - return bus_register(&mcp_bus_type); -} - -static void __exit mcp_exit(void) -{ - bus_unregister(&mcp_bus_type); -} - -module_init(mcp_init); -module_exit(mcp_exit); - -MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>"); -MODULE_DESCRIPTION("Core multimedia communications port driver"); -MODULE_LICENSE("GPL"); |