diff options
Diffstat (limited to 'drivers/staging/xillybus/xillybus_of.c')
| -rw-r--r-- | drivers/staging/xillybus/xillybus_of.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/drivers/staging/xillybus/xillybus_of.c b/drivers/staging/xillybus/xillybus_of.c deleted file mode 100644 index e0ae2346b820..000000000000 --- a/drivers/staging/xillybus/xillybus_of.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - * linux/drivers/misc/xillybus_of.c - * - * Copyright 2011 Xillybus Ltd, http://xillybus.com - * - * Driver for the Xillybus FPGA/host framework using Open Firmware. - * - * This program is free software; you can redistribute it and/or modify - * it under the smems of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - */ - -#include <linux/module.h> -#include <linux/device.h> -#include <linux/slab.h> -#include <linux/platform_device.h> -#include <linux/of.h> -#include <linux/of_irq.h> -#include <linux/of_address.h> -#include <linux/of_device.h> -#include <linux/of_platform.h> -#include <linux/err.h> -#include "xillybus.h" - -MODULE_DESCRIPTION("Xillybus driver for Open Firmware"); -MODULE_AUTHOR("Eli Billauer, Xillybus Ltd."); -MODULE_VERSION("1.06"); -MODULE_ALIAS("xillybus_of"); -MODULE_LICENSE("GPL v2"); - -static const char xillyname[] = "xillybus_of"; - -/* Match table for of_platform binding */ -static struct of_device_id xillybus_of_match[] = { - { .compatible = "xillybus,xillybus-1.00.a", }, - { .compatible = "xlnx,xillybus-1.00.a", }, /* Deprecated */ - {} -}; - -MODULE_DEVICE_TABLE(of, xillybus_of_match); - -static void xilly_dma_sync_single_for_cpu_of(struct xilly_endpoint *ep, - dma_addr_t dma_handle, - size_t size, - int direction) -{ - dma_sync_single_for_cpu(ep->dev, dma_handle, size, direction); -} - -static void xilly_dma_sync_single_for_device_of(struct xilly_endpoint *ep, - dma_addr_t dma_handle, - size_t size, - int direction) -{ - dma_sync_single_for_device(ep->dev, dma_handle, size, direction); -} - -static void xilly_dma_sync_single_nop(struct xilly_endpoint *ep, - dma_addr_t dma_handle, - size_t size, - int direction) -{ -} - -static void xilly_of_unmap(void *ptr) -{ - struct xilly_mapping *data = ptr; - - dma_unmap_single(data->device, data->dma_addr, - data->size, data->direction); - - kfree(ptr); -} - -static int xilly_map_single_of(struct xilly_endpoint *ep, - void *ptr, - size_t size, - int direction, - dma_addr_t *ret_dma_handle - ) -{ - dma_addr_t addr; - struct xilly_mapping *this; - int rc; - - this = kzalloc(sizeof(*this), GFP_KERNEL); - if (!this) - return -ENOMEM; - - addr = dma_map_single(ep->dev, ptr, size, direction); - - if (dma_mapping_error(ep->dev, addr)) { - kfree(this); - return -ENODEV; - } - - this->device = ep->dev; - this->dma_addr = addr; - this->size = size; - this->direction = direction; - - *ret_dma_handle = addr; - - rc = devm_add_action(ep->dev, xilly_of_unmap, this); - - if (rc) { - dma_unmap_single(ep->dev, addr, size, direction); - kfree(this); - } - - return rc; -} - -static struct xilly_endpoint_hardware of_hw = { - .owner = THIS_MODULE, - .hw_sync_sgl_for_cpu = xilly_dma_sync_single_for_cpu_of, - .hw_sync_sgl_for_device = xilly_dma_sync_single_for_device_of, - .map_single = xilly_map_single_of, -}; - -static struct xilly_endpoint_hardware of_hw_coherent = { - .owner = THIS_MODULE, - .hw_sync_sgl_for_cpu = xilly_dma_sync_single_nop, - .hw_sync_sgl_for_device = xilly_dma_sync_single_nop, - .map_single = xilly_map_single_of, -}; - -static int xilly_drv_probe(struct platform_device *op) -{ - struct device *dev = &op->dev; - struct xilly_endpoint *endpoint; - int rc = 0; - int irq; - struct resource res; - struct xilly_endpoint_hardware *ephw = &of_hw; - - if (of_property_read_bool(dev->of_node, "dma-coherent")) - ephw = &of_hw_coherent; - - endpoint = xillybus_init_endpoint(NULL, dev, ephw); - - if (!endpoint) - return -ENOMEM; - - dev_set_drvdata(dev, endpoint); - - rc = of_address_to_resource(dev->of_node, 0, &res); - endpoint->registers = devm_ioremap_resource(dev, &res); - - if (IS_ERR(endpoint->registers)) - return PTR_ERR(endpoint->registers); - - irq = irq_of_parse_and_map(dev->of_node, 0); - - rc = devm_request_irq(dev, irq, xillybus_isr, 0, xillyname, endpoint); - - if (rc) { - dev_err(endpoint->dev, - "Failed to register IRQ handler. Aborting.\n"); - return -ENODEV; - } - - return xillybus_endpoint_discovery(endpoint); -} - -static int xilly_drv_remove(struct platform_device *op) -{ - struct device *dev = &op->dev; - struct xilly_endpoint *endpoint = dev_get_drvdata(dev); - - xillybus_endpoint_remove(endpoint); - - return 0; -} - -static struct platform_driver xillybus_platform_driver = { - .probe = xilly_drv_probe, - .remove = xilly_drv_remove, - .driver = { - .name = xillyname, - .owner = THIS_MODULE, - .of_match_table = xillybus_of_match, - }, -}; - -module_platform_driver(xillybus_platform_driver); |