staging: tidspbridge: remove unused header
No functional changes. The header file drv_interface.h was only used locally, hence there's no need to have it. Also the only prototyped functions were the file_operations callbacks, then this commit moves them up to avoid prototyping too. Signed-off-by: Víctor Manuel Jáquez Leal <vjaquez@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Víctor Manuel Jáquez Leal
Greg Kroah-Hartman
parent
4f1ef76165
commit
518761dba1
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@ -48,9 +48,6 @@
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/* ----------------------------------- Resource Manager */
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#include <dspbridge/pwr.h>
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/* ----------------------------------- This */
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#include <drv_interface.h>
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#include <dspbridge/resourcecleanup.h>
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#include <dspbridge/chnl.h>
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#include <dspbridge/proc.h>
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@ -133,6 +130,161 @@ MODULE_VERSION(DSPBRIDGE_VERSION);
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static char *driver_name = DRIVER_NAME;
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/*
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* This function is called when an application opens handle to the
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* bridge driver.
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*/
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static int bridge_open(struct inode *ip, struct file *filp)
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{
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int status = 0;
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struct process_context *pr_ctxt = NULL;
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/*
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* Allocate a new process context and insert it into global
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* process context list.
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*/
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#ifdef CONFIG_TIDSPBRIDGE_RECOVERY
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if (recover) {
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if (filp->f_flags & O_NONBLOCK ||
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wait_for_completion_interruptible(&bridge_open_comp))
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return -EBUSY;
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}
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#endif
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pr_ctxt = kzalloc(sizeof(struct process_context), GFP_KERNEL);
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if (pr_ctxt) {
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pr_ctxt->res_state = PROC_RES_ALLOCATED;
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spin_lock_init(&pr_ctxt->dmm_map_lock);
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INIT_LIST_HEAD(&pr_ctxt->dmm_map_list);
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spin_lock_init(&pr_ctxt->dmm_rsv_lock);
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INIT_LIST_HEAD(&pr_ctxt->dmm_rsv_list);
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pr_ctxt->node_id = kzalloc(sizeof(struct idr), GFP_KERNEL);
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if (pr_ctxt->node_id) {
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idr_init(pr_ctxt->node_id);
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} else {
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status = -ENOMEM;
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goto err;
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}
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pr_ctxt->stream_id = kzalloc(sizeof(struct idr), GFP_KERNEL);
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if (pr_ctxt->stream_id)
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idr_init(pr_ctxt->stream_id);
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else
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status = -ENOMEM;
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} else {
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status = -ENOMEM;
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}
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err:
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filp->private_data = pr_ctxt;
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#ifdef CONFIG_TIDSPBRIDGE_RECOVERY
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if (!status)
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atomic_inc(&bridge_cref);
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#endif
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return status;
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}
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/*
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* This function is called when an application closes handle to the bridge
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* driver.
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*/
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static int bridge_release(struct inode *ip, struct file *filp)
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{
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int status = 0;
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struct process_context *pr_ctxt;
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if (!filp->private_data) {
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status = -EIO;
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goto err;
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}
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pr_ctxt = filp->private_data;
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flush_signals(current);
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drv_remove_all_resources(pr_ctxt);
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proc_detach(pr_ctxt);
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kfree(pr_ctxt);
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filp->private_data = NULL;
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err:
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#ifdef CONFIG_TIDSPBRIDGE_RECOVERY
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if (!atomic_dec_return(&bridge_cref))
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complete(&bridge_comp);
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#endif
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return status;
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}
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/* This function provides IO interface to the bridge driver. */
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static long bridge_ioctl(struct file *filp, unsigned int code,
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unsigned long args)
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{
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int status;
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u32 retval = 0;
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union trapped_args buf_in;
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DBC_REQUIRE(filp != NULL);
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#ifdef CONFIG_TIDSPBRIDGE_RECOVERY
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if (recover) {
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status = -EIO;
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goto err;
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}
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#endif
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#ifdef CONFIG_PM
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status = omap34_xxbridge_suspend_lockout(&bridge_suspend_data, filp);
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if (status != 0)
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return status;
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#endif
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if (!filp->private_data) {
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status = -EIO;
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goto err;
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}
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status = copy_from_user(&buf_in, (union trapped_args *)args,
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sizeof(union trapped_args));
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if (!status) {
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status = api_call_dev_ioctl(code, &buf_in, &retval,
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filp->private_data);
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if (!status) {
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status = retval;
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} else {
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dev_dbg(bridge, "%s: IOCTL Failed, code: 0x%x "
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"status 0x%x\n", __func__, code, status);
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status = -1;
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}
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}
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err:
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return status;
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}
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/* This function maps kernel space memory to user space memory. */
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static int bridge_mmap(struct file *filp, struct vm_area_struct *vma)
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{
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u32 offset = vma->vm_pgoff << PAGE_SHIFT;
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u32 status;
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DBC_ASSERT(vma->vm_start < vma->vm_end);
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vma->vm_flags |= VM_RESERVED | VM_IO;
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vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
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dev_dbg(bridge, "%s: vm filp %p offset %x start %lx end %lx page_prot "
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"%lx flags %lx\n", __func__, filp, offset,
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vma->vm_start, vma->vm_end, vma->vm_page_prot, vma->vm_flags);
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status = remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
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vma->vm_end - vma->vm_start,
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vma->vm_page_prot);
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if (status != 0)
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status = -EAGAIN;
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return status;
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}
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static const struct file_operations bridge_fops = {
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.open = bridge_open,
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.release = bridge_release,
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@ -477,161 +629,6 @@ static void __exit bridge_exit(void)
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platform_driver_unregister(&bridge_driver);
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}
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/*
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* This function is called when an application opens handle to the
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* bridge driver.
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*/
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static int bridge_open(struct inode *ip, struct file *filp)
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{
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int status = 0;
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struct process_context *pr_ctxt = NULL;
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/*
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* Allocate a new process context and insert it into global
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* process context list.
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*/
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#ifdef CONFIG_TIDSPBRIDGE_RECOVERY
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if (recover) {
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if (filp->f_flags & O_NONBLOCK ||
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wait_for_completion_interruptible(&bridge_open_comp))
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return -EBUSY;
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}
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#endif
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pr_ctxt = kzalloc(sizeof(struct process_context), GFP_KERNEL);
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if (pr_ctxt) {
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pr_ctxt->res_state = PROC_RES_ALLOCATED;
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spin_lock_init(&pr_ctxt->dmm_map_lock);
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INIT_LIST_HEAD(&pr_ctxt->dmm_map_list);
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spin_lock_init(&pr_ctxt->dmm_rsv_lock);
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INIT_LIST_HEAD(&pr_ctxt->dmm_rsv_list);
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pr_ctxt->node_id = kzalloc(sizeof(struct idr), GFP_KERNEL);
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if (pr_ctxt->node_id) {
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idr_init(pr_ctxt->node_id);
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} else {
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status = -ENOMEM;
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goto err;
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}
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pr_ctxt->stream_id = kzalloc(sizeof(struct idr), GFP_KERNEL);
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if (pr_ctxt->stream_id)
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idr_init(pr_ctxt->stream_id);
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else
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status = -ENOMEM;
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} else {
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status = -ENOMEM;
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}
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err:
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filp->private_data = pr_ctxt;
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#ifdef CONFIG_TIDSPBRIDGE_RECOVERY
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if (!status)
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atomic_inc(&bridge_cref);
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#endif
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return status;
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}
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/*
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* This function is called when an application closes handle to the bridge
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* driver.
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*/
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static int bridge_release(struct inode *ip, struct file *filp)
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{
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int status = 0;
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struct process_context *pr_ctxt;
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if (!filp->private_data) {
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status = -EIO;
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goto err;
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}
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pr_ctxt = filp->private_data;
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flush_signals(current);
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drv_remove_all_resources(pr_ctxt);
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proc_detach(pr_ctxt);
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kfree(pr_ctxt);
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filp->private_data = NULL;
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err:
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#ifdef CONFIG_TIDSPBRIDGE_RECOVERY
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if (!atomic_dec_return(&bridge_cref))
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complete(&bridge_comp);
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#endif
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return status;
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}
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/* This function provides IO interface to the bridge driver. */
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static long bridge_ioctl(struct file *filp, unsigned int code,
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unsigned long args)
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{
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int status;
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u32 retval = 0;
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union trapped_args buf_in;
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DBC_REQUIRE(filp != NULL);
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#ifdef CONFIG_TIDSPBRIDGE_RECOVERY
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if (recover) {
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status = -EIO;
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goto err;
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}
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#endif
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#ifdef CONFIG_PM
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status = omap34_xxbridge_suspend_lockout(&bridge_suspend_data, filp);
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if (status != 0)
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return status;
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#endif
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if (!filp->private_data) {
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status = -EIO;
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goto err;
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}
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status = copy_from_user(&buf_in, (union trapped_args *)args,
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sizeof(union trapped_args));
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if (!status) {
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status = api_call_dev_ioctl(code, &buf_in, &retval,
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filp->private_data);
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if (!status) {
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status = retval;
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} else {
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dev_dbg(bridge, "%s: IOCTL Failed, code: 0x%x "
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"status 0x%x\n", __func__, code, status);
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status = -1;
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}
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}
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err:
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return status;
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}
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/* This function maps kernel space memory to user space memory. */
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static int bridge_mmap(struct file *filp, struct vm_area_struct *vma)
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{
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u32 offset = vma->vm_pgoff << PAGE_SHIFT;
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u32 status;
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DBC_ASSERT(vma->vm_start < vma->vm_end);
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vma->vm_flags |= VM_RESERVED | VM_IO;
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vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
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dev_dbg(bridge, "%s: vm filp %p offset %x start %lx end %lx page_prot "
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"%lx flags %lx\n", __func__, filp, offset,
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vma->vm_start, vma->vm_end, vma->vm_page_prot, vma->vm_flags);
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status = remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
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vma->vm_end - vma->vm_start,
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vma->vm_page_prot);
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if (status != 0)
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status = -EAGAIN;
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return status;
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}
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/* To remove all process resources before removing the process from the
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* process context list */
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int drv_remove_all_resources(void *process_ctxt)
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@ -1,28 +0,0 @@
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/*
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* drv_interface.h
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*
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* DSP-BIOS Bridge driver support functions for TI OMAP processors.
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*
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* Copyright (C) 2005-2006 Texas Instruments, Inc.
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*
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* This package is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef _DRV_INTERFACE_H_
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#define _DRV_INTERFACE_H_
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/* Prototypes for all functions in this bridge */
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static int __init bridge_init(void); /* Initialize bridge */
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static void __exit bridge_exit(void); /* Opposite of initialize */
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static int bridge_open(struct inode *ip, struct file *filp); /* Open */
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static int bridge_release(struct inode *ip, struct file *filp); /* Release */
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static long bridge_ioctl(struct file *filp, unsigned int code,
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unsigned long args);
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static int bridge_mmap(struct file *filp, struct vm_area_struct *vma);
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#endif /* ifndef _DRV_INTERFACE_H_ */
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