diff options
Diffstat (limited to 'drivers/staging/kpc2000/kpc2000/fileops.c')
| -rw-r--r-- | drivers/staging/kpc2000/kpc2000/fileops.c | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/drivers/staging/kpc2000/kpc2000/fileops.c b/drivers/staging/kpc2000/kpc2000/fileops.c deleted file mode 100644 index b3b0b763fa1e..000000000000 --- a/drivers/staging/kpc2000/kpc2000/fileops.c +++ /dev/null @@ -1,131 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -#include <linux/module.h> -#include <linux/init.h> -#include <linux/kernel.h> /* printk() */ -#include <linux/slab.h> /* kmalloc() */ -#include <linux/fs.h> /* everything... */ -#include <linux/errno.h> /* error codes */ -#include <linux/types.h> /* size_t */ -#include <linux/cdev.h> -#include <linux/uaccess.h> /* copy_*_user */ -#include <linux/rwsem.h> -#include <linux/idr.h> -#include <linux/io-64-nonatomic-lo-hi.h> -#include <linux/device.h> -#include <linux/sched.h> -#include "pcie.h" -#include "uapi.h" - -int kp2000_cdev_open(struct inode *inode, struct file *filp) -{ - struct kp2000_device *pcard = container_of(filp->private_data, struct kp2000_device, miscdev); - - dev_dbg(&pcard->pdev->dev, "kp2000_cdev_open(filp = [%p], pcard = [%p])\n", filp, pcard); - - filp->private_data = pcard; /* so other methods can access it */ - - return 0; -} - -int kp2000_cdev_close(struct inode *inode, struct file *filp) -{ - struct kp2000_device *pcard = filp->private_data; - - dev_dbg(&pcard->pdev->dev, "kp2000_cdev_close(filp = [%p], pcard = [%p])\n", filp, pcard); - return 0; -} - - -ssize_t kp2000_cdev_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos) -{ - struct kp2000_device *pcard = filp->private_data; - int cnt = 0; - int ret; -#define BUFF_CNT 1024 - char buff[BUFF_CNT] = {0}; //NOTE: Increase this so it is at least as large as all the scnprintfs. And don't use unbounded strings. "%s" - //NOTE: also, this is a really shitty way to implement the read() call, but it will work for any size 'count'. - - if (WARN(NULL == buf, "kp2000_cdev_read: buf is a NULL pointer!\n")) - return -EINVAL; - - cnt += scnprintf(buff+cnt, BUFF_CNT-cnt, "Card ID : 0x%08x\n", pcard->card_id); - cnt += scnprintf(buff+cnt, BUFF_CNT-cnt, "Build Version : 0x%08x\n", pcard->build_version); - cnt += scnprintf(buff+cnt, BUFF_CNT-cnt, "Build Date : 0x%08x\n", pcard->build_datestamp); - cnt += scnprintf(buff+cnt, BUFF_CNT-cnt, "Build Time : 0x%08x\n", pcard->build_timestamp); - cnt += scnprintf(buff+cnt, BUFF_CNT-cnt, "Core Table Offset : 0x%08x\n", pcard->core_table_offset); - cnt += scnprintf(buff+cnt, BUFF_CNT-cnt, "Core Table Length : 0x%08x\n", pcard->core_table_length); - cnt += scnprintf(buff+cnt, BUFF_CNT-cnt, "Hardware Revision : 0x%08x\n", pcard->hardware_revision); - cnt += scnprintf(buff+cnt, BUFF_CNT-cnt, "SSID : 0x%016llx\n", pcard->ssid); - cnt += scnprintf(buff+cnt, BUFF_CNT-cnt, "DDNA : 0x%016llx\n", pcard->ddna); - cnt += scnprintf(buff+cnt, BUFF_CNT-cnt, "IRQ Mask : 0x%016llx\n", readq(pcard->sysinfo_regs_base + REG_INTERRUPT_MASK)); - cnt += scnprintf(buff+cnt, BUFF_CNT-cnt, "IRQ Active : 0x%016llx\n", readq(pcard->sysinfo_regs_base + REG_INTERRUPT_ACTIVE)); - cnt += scnprintf(buff+cnt, BUFF_CNT-cnt, "CPLD : 0x%016llx\n", readq(pcard->sysinfo_regs_base + REG_CPLD_CONFIG)); - - if (*f_pos >= cnt) - return 0; - - if (count > cnt) - count = cnt; - - ret = copy_to_user(buf, buff + *f_pos, count); - if (ret) - return -EFAULT; - *f_pos += count; - return count; -} - -ssize_t kp2000_cdev_write(struct file *filp, const char __user *buf, size_t count, loff_t *f_pos) -{ - return -EINVAL; -} - -long kp2000_cdev_ioctl(struct file *filp, unsigned int ioctl_num, unsigned long ioctl_param) -{ - struct kp2000_device *pcard = filp->private_data; - - dev_dbg(&pcard->pdev->dev, "kp2000_cdev_ioctl(filp = [%p], ioctl_num = 0x%08x, ioctl_param = 0x%016lx) pcard = [%p]\n", filp, ioctl_num, ioctl_param, pcard); - - switch (ioctl_num){ - case KP2000_IOCTL_GET_CPLD_REG: return readq(pcard->sysinfo_regs_base + REG_CPLD_CONFIG); - case KP2000_IOCTL_GET_PCIE_ERROR_REG: return readq(pcard->sysinfo_regs_base + REG_PCIE_ERROR_COUNT); - - case KP2000_IOCTL_GET_EVERYTHING: { - struct kp2000_regs temp; - int ret; - - memset(&temp, 0, sizeof(temp)); - temp.card_id = pcard->card_id; - temp.build_version = pcard->build_version; - temp.build_datestamp = pcard->build_datestamp; - temp.build_timestamp = pcard->build_timestamp; - temp.hw_rev = pcard->hardware_revision; - temp.ssid = pcard->ssid; - temp.ddna = pcard->ddna; - temp.cpld_reg = readq(pcard->sysinfo_regs_base + REG_CPLD_CONFIG); - - ret = copy_to_user((void*)ioctl_param, (void*)&temp, sizeof(temp)); - if (ret) - return -EFAULT; - - return sizeof(temp); - } - - default: - return -ENOTTY; - } - return -ENOTTY; -} - - -struct file_operations kp2000_fops = { - .owner = THIS_MODULE, - .open = kp2000_cdev_open, - .release = kp2000_cdev_close, - .read = kp2000_cdev_read, - //.write = kp2000_cdev_write, - //.poll = kp2000_cdev_poll, - //.fasync = kp2000_cdev_fasync, - .llseek = noop_llseek, - .unlocked_ioctl = kp2000_cdev_ioctl, -}; - |