Staging: sep: use O_NDELAY instead of magic APIs
Open is still completely bogus in this driver but we'll tackle that later - for now fix the bogus API Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>hifive-unleashed-5.1
Alan Cox
Greg Kroah-Hartman
parent
7913c21a25
commit
577092ac15
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@ -86,9 +86,6 @@ struct sep_device {
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/* global data for every flow */
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struct sep_flow_context_t flows_data_array[SEP_DRIVER_NUM_FLOWS];
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/* flag for API mode - 1 -is blocking, 0 is non-blocking */
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unsigned long block_mode_flag;
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/* pointer to the workqueue that handles the flow done interrupts */
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struct workqueue_struct *flow_wq_ptr;
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@ -49,7 +49,6 @@
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#include "sep_driver_hw_defs.h"
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#include "sep_driver_config.h"
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#include "sep_driver_api.h"
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#include "sep_driver_ext_api.h"
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#include "sep_dev.h"
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#if SEP_DRIVER_ARM_DEBUG_MODE
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@ -345,25 +344,22 @@ static unsigned long sep_shared_area_phys_to_virt(unsigned long phys_address)
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open function of the character driver - must only lock the mutex
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must also release the memory data pool allocations
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------------------------------------------------------------------------*/
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static int sep_open(struct inode *inode_ptr, struct file *file_ptr)
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static int sep_open(struct inode *inode, struct file *filp)
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{
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int error;
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int error = 0;
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dbg("SEP Driver:--------> open start\n");
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error = 0;
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/* check the blocking mode */
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if (sep_dev->block_mode_flag)
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if (filp->f_flags & O_NDELAY)
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error = mutex_trylock(&sep_mutex);
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else
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/* lock mutex */
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mutex_lock(&sep_mutex);
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else
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error = mutex_trylock(&sep_mutex);
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/* check the error */
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if (error) {
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edbg("SEP Driver: down_interruptible failed\n");
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goto end_function;
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}
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@ -388,17 +384,13 @@ static int sep_release(struct inode *inode_ptr, struct file *file_ptr)
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#if 0 /*!SEP_DRIVER_POLLING_MODE */
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/* close IMR */
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sep_write_reg(sep_dev, HW_HOST_IMR_REG_ADDR, 0x7FFF);
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/* release IRQ line */
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free_irq(SEP_DIRVER_IRQ_NUM, &sep_dev->reg_base_address);
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#endif
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/* unlock the sep mutex */
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mutex_unlock(&sep_mutex);
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dbg("SEP Driver:<-------- sep_release end\n");
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return 0;
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}
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@ -2150,27 +2142,6 @@ static int sep_get_time_handler(unsigned long arg)
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}
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/*
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This api handles the setting of API mode to blocking or non-blocking
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*/
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static int sep_set_api_mode_handler(unsigned long arg)
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{
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int error;
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unsigned long mode_flag;
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dbg("SEP Driver:--------> sep_set_api_mode_handler start\n");
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error = get_user(mode_flag, &(((struct sep_driver_set_api_mode_t *) arg)->mode));
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if (error)
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goto end_function;
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/* set the global flag */
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sep_dev->block_mode_flag = mode_flag;
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end_function:
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dbg("SEP Driver:<-------- sep_set_api_mode_handler end\n");
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return error;
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}
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/*
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This API handles the end transaction request
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*/
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@ -2294,10 +2265,6 @@ static int sep_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, u
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/* init command to sep */
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error = sep_init_handler(arg);
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break;
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case SEP_IOCSETAPIMODE:
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/* set non- blocking mode */
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error = sep_set_api_mode_handler(arg);
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break;
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case SEP_IOCGETSTATICPOOLADDR:
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/* get the physical and virtual addresses of the static pool */
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error = sep_get_static_pool_addr_handler(arg);
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@ -2639,9 +2606,6 @@ static int __init sep_init(void)
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for the current transaction */
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sep_dev->data_pool_bytes_allocated = 0;
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/* set the starting mode to blocking */
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sep_dev->block_mode_flag = 1;
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/* FIXME: Probe can occur before we are ready to survive a probe */
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ret_val = pci_register_driver(&sep_pci_driver);
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if (ret_val) {
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@ -83,9 +83,6 @@
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/* init sep command */
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#define SEP_IOCSEPINIT _IO(SEP_IOC_MAGIC_NUMBER , 13)
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/* set non blocking mode */
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#define SEP_IOCSETAPIMODE _IO(SEP_IOC_MAGIC_NUMBER , 14)
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/* end transaction command */
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#define SEP_IOCENDTRANSACTION _IO(SEP_IOC_MAGIC_NUMBER , 15)
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@ -147,14 +144,6 @@ struct sep_driver_realloc_cache_resident_t {
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unsigned long new_base_addr;
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};
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/*
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set api mode command struct
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*/
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struct sep_driver_set_api_mode_t {
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/* mode to set - 1 - blocking, 0 - non-blocking */
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unsigned long mode;
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};
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struct sep_driver_alloc_t {
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/* virtual address of allocated space */
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unsigned long offset;
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