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Diffstat (limited to 'drivers/staging/dream/smd/smd_rpcrouter_device.c')
-rw-r--r--drivers/staging/dream/smd/smd_rpcrouter_device.c377
1 files changed, 0 insertions, 377 deletions
diff --git a/drivers/staging/dream/smd/smd_rpcrouter_device.c b/drivers/staging/dream/smd/smd_rpcrouter_device.c
deleted file mode 100644
index e9c28eddce31..000000000000
--- a/drivers/staging/dream/smd/smd_rpcrouter_device.c
+++ /dev/null
@@ -1,377 +0,0 @@
-/* arch/arm/mach-msm/smd_rpcrouter_device.c
- *
- * Copyright (C) 2007 Google, Inc.
- * Copyright (c) 2007-2009 QUALCOMM Incorporated.
- * Author: San Mehat <san@android.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/cdev.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/types.h>
-#include <linux/delay.h>
-#include <linux/fs.h>
-#include <linux/err.h>
-#include <linux/sched.h>
-#include <linux/poll.h>
-#include <linux/platform_device.h>
-#include <linux/msm_rpcrouter.h>
-#include <linux/slab.h>
-
-#include <asm/uaccess.h>
-#include <asm/byteorder.h>
-
-#include "smd_rpcrouter.h"
-
-#define SAFETY_MEM_SIZE 65536
-
-/* Next minor # available for a remote server */
-static int next_minor = 1;
-
-struct class *msm_rpcrouter_class;
-dev_t msm_rpcrouter_devno;
-
-static struct cdev rpcrouter_cdev;
-static struct device *rpcrouter_device;
-
-static int rpcrouter_open(struct inode *inode, struct file *filp)
-{
- int rc;
- struct msm_rpc_endpoint *ept;
-
- rc = nonseekable_open(inode, filp);
- if (rc < 0)
- return rc;
-
- ept = msm_rpcrouter_create_local_endpoint(inode->i_rdev);
- if (!ept)
- return -ENOMEM;
-
- filp->private_data = ept;
- return 0;
-}
-
-static int rpcrouter_release(struct inode *inode, struct file *filp)
-{
- struct msm_rpc_endpoint *ept;
- ept = (struct msm_rpc_endpoint *) filp->private_data;
-
- return msm_rpcrouter_destroy_local_endpoint(ept);
-}
-
-static ssize_t rpcrouter_read(struct file *filp, char __user *buf,
- size_t count, loff_t *ppos)
-{
- struct msm_rpc_endpoint *ept;
- struct rr_fragment *frag, *next;
- int rc;
-
- ept = (struct msm_rpc_endpoint *) filp->private_data;
-
- rc = __msm_rpc_read(ept, &frag, count, -1);
- if (rc < 0)
- return rc;
-
- count = rc;
-
- while (frag != NULL) {
- if (copy_to_user(buf, frag->data, frag->length)) {
- printk(KERN_ERR
- "rpcrouter: could not copy all read data to user!\n");
- rc = -EFAULT;
- }
- buf += frag->length;
- next = frag->next;
- kfree(frag);
- frag = next;
- }
-
- return rc;
-}
-
-static ssize_t rpcrouter_write(struct file *filp, const char __user *buf,
- size_t count, loff_t *ppos)
-{
- struct msm_rpc_endpoint *ept;
- int rc = 0;
- void *k_buffer;
-
- ept = (struct msm_rpc_endpoint *) filp->private_data;
-
- /* A check for safety, this seems non-standard */
- if (count > SAFETY_MEM_SIZE)
- return -EINVAL;
-
- k_buffer = kmalloc(count, GFP_KERNEL);
- if (!k_buffer)
- return -ENOMEM;
-
- if (copy_from_user(k_buffer, buf, count)) {
- rc = -EFAULT;
- goto write_out_free;
- }
-
- rc = msm_rpc_write(ept, k_buffer, count);
- if (rc < 0)
- goto write_out_free;
-
- rc = count;
-write_out_free:
- kfree(k_buffer);
- return rc;
-}
-
-static unsigned int rpcrouter_poll(struct file *filp,
- struct poll_table_struct *wait)
-{
- struct msm_rpc_endpoint *ept;
- unsigned mask = 0;
- ept = (struct msm_rpc_endpoint *) filp->private_data;
-
- /* If there's data already in the read queue, return POLLIN.
- * Else, wait for the requested amount of time, and check again.
- */
-
- if (!list_empty(&ept->read_q))
- mask |= POLLIN;
-
- if (!mask) {
- poll_wait(filp, &ept->wait_q, wait);
- if (!list_empty(&ept->read_q))
- mask |= POLLIN;
- }
-
- return mask;
-}
-
-static long rpcrouter_ioctl(struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- struct msm_rpc_endpoint *ept;
- struct rpcrouter_ioctl_server_args server_args;
- int rc = 0;
- uint32_t n;
-
- ept = (struct msm_rpc_endpoint *) filp->private_data;
- switch (cmd) {
-
- case RPC_ROUTER_IOCTL_GET_VERSION:
- n = RPC_ROUTER_VERSION_V1;
- rc = put_user(n, (unsigned int *) arg);
- break;
-
- case RPC_ROUTER_IOCTL_GET_MTU:
- /* the pacmark word reduces the actual payload
- * possible per message
- */
- n = RPCROUTER_MSGSIZE_MAX - sizeof(uint32_t);
- rc = put_user(n, (unsigned int *) arg);
- break;
-
- case RPC_ROUTER_IOCTL_REGISTER_SERVER:
- rc = copy_from_user(&server_args, (void *) arg,
- sizeof(server_args));
- if (rc < 0)
- break;
- msm_rpc_register_server(ept,
- server_args.prog,
- server_args.vers);
- break;
-
- case RPC_ROUTER_IOCTL_UNREGISTER_SERVER:
- rc = copy_from_user(&server_args, (void *) arg,
- sizeof(server_args));
- if (rc < 0)
- break;
-
- msm_rpc_unregister_server(ept,
- server_args.prog,
- server_args.vers);
- break;
-
- case RPC_ROUTER_IOCTL_GET_MINOR_VERSION:
- n = MSM_RPC_GET_MINOR(msm_rpc_get_vers(ept));
- rc = put_user(n, (unsigned int *)arg);
- break;
-
- default:
- rc = -EINVAL;
- break;
- }
-
- return rc;
-}
-
-static struct file_operations rpcrouter_server_fops = {
- .owner = THIS_MODULE,
- .open = rpcrouter_open,
- .release = rpcrouter_release,
- .read = rpcrouter_read,
- .write = rpcrouter_write,
- .poll = rpcrouter_poll,
- .unlocked_ioctl = rpcrouter_ioctl,
-};
-
-static struct file_operations rpcrouter_router_fops = {
- .owner = THIS_MODULE,
- .open = rpcrouter_open,
- .release = rpcrouter_release,
- .read = rpcrouter_read,
- .write = rpcrouter_write,
- .poll = rpcrouter_poll,
- .unlocked_ioctl = rpcrouter_ioctl,
-};
-
-int msm_rpcrouter_create_server_cdev(struct rr_server *server)
-{
- int rc;
- uint32_t dev_vers;
-
- if (next_minor == RPCROUTER_MAX_REMOTE_SERVERS) {
- printk(KERN_ERR
- "rpcrouter: Minor numbers exhausted - Increase "
- "RPCROUTER_MAX_REMOTE_SERVERS\n");
- return -ENOBUFS;
- }
-
-#if CONFIG_MSM_AMSS_VERSION >= 6350
- /* Servers with bit 31 set are remote msm servers with hashkey version.
- * Servers with bit 31 not set are remote msm servers with
- * backwards compatible version type in which case the minor number
- * (lower 16 bits) is set to zero.
- *
- */
- if ((server->vers & RPC_VERSION_MODE_MASK))
- dev_vers = server->vers;
- else
- dev_vers = server->vers & RPC_VERSION_MAJOR_MASK;
-#else
- dev_vers = server->vers;
-#endif
-
- server->device_number =
- MKDEV(MAJOR(msm_rpcrouter_devno), next_minor++);
-
- server->device =
- device_create(msm_rpcrouter_class, rpcrouter_device,
- server->device_number, NULL, "%.8x:%.8x",
- server->prog, dev_vers);
- if (IS_ERR(server->device)) {
- printk(KERN_ERR
- "rpcrouter: Unable to create device (%ld)\n",
- PTR_ERR(server->device));
- return PTR_ERR(server->device);;
- }
-
- cdev_init(&server->cdev, &rpcrouter_server_fops);
- server->cdev.owner = THIS_MODULE;
-
- rc = cdev_add(&server->cdev, server->device_number, 1);
- if (rc < 0) {
- printk(KERN_ERR
- "rpcrouter: Unable to add chrdev (%d)\n", rc);
- device_destroy(msm_rpcrouter_class, server->device_number);
- return rc;
- }
- return 0;
-}
-
-/* for backward compatible version type (31st bit cleared)
- * clearing minor number (lower 16 bits) in device name
- * is neccessary for driver binding
- */
-int msm_rpcrouter_create_server_pdev(struct rr_server *server)
-{
- sprintf(server->pdev_name, "rs%.8x:%.8x",
- server->prog,
-#if CONFIG_MSM_AMSS_VERSION >= 6350
- (server->vers & RPC_VERSION_MODE_MASK) ? server->vers :
- (server->vers & RPC_VERSION_MAJOR_MASK));
-#else
- server->vers);
-#endif
-
- server->p_device.base.id = -1;
- server->p_device.base.name = server->pdev_name;
-
- server->p_device.prog = server->prog;
- server->p_device.vers = server->vers;
-
- platform_device_register(&server->p_device.base);
- return 0;
-}
-
-int msm_rpcrouter_init_devices(void)
-{
- int rc;
- int major;
-
- /* Create the device nodes */
- msm_rpcrouter_class = class_create(THIS_MODULE, "oncrpc");
- if (IS_ERR(msm_rpcrouter_class)) {
- rc = -ENOMEM;
- printk(KERN_ERR
- "rpcrouter: failed to create oncrpc class\n");
- goto fail;
- }
-
- rc = alloc_chrdev_region(&msm_rpcrouter_devno, 0,
- RPCROUTER_MAX_REMOTE_SERVERS + 1,
- "oncrpc");
- if (rc < 0) {
- printk(KERN_ERR
- "rpcrouter: Failed to alloc chardev region (%d)\n", rc);
- goto fail_destroy_class;
- }
-
- major = MAJOR(msm_rpcrouter_devno);
- rpcrouter_device = device_create(msm_rpcrouter_class, NULL,
- msm_rpcrouter_devno, NULL, "%.8x:%d",
- 0, 0);
- if (IS_ERR(rpcrouter_device)) {
- rc = -ENOMEM;
- goto fail_unregister_cdev_region;
- }
-
- cdev_init(&rpcrouter_cdev, &rpcrouter_router_fops);
- rpcrouter_cdev.owner = THIS_MODULE;
-
- rc = cdev_add(&rpcrouter_cdev, msm_rpcrouter_devno, 1);
- if (rc < 0)
- goto fail_destroy_device;
-
- return 0;
-
-fail_destroy_device:
- device_destroy(msm_rpcrouter_class, msm_rpcrouter_devno);
-fail_unregister_cdev_region:
- unregister_chrdev_region(msm_rpcrouter_devno,
- RPCROUTER_MAX_REMOTE_SERVERS + 1);
-fail_destroy_class:
- class_destroy(msm_rpcrouter_class);
-fail:
- return rc;
-}
-
-void msm_rpcrouter_exit_devices(void)
-{
- cdev_del(&rpcrouter_cdev);
- device_destroy(msm_rpcrouter_class, msm_rpcrouter_devno);
- unregister_chrdev_region(msm_rpcrouter_devno,
- RPCROUTER_MAX_REMOTE_SERVERS + 1);
- class_destroy(msm_rpcrouter_class);
-}
-