diff options
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/ioctl.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/ioctl.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/drivers/net/wireless/ath/wil6210/ioctl.c b/drivers/net/wireless/ath/wil6210/ioctl.c deleted file mode 100644 index 630380078236..000000000000 --- a/drivers/net/wireless/ath/wil6210/ioctl.c +++ /dev/null @@ -1,180 +0,0 @@ -/* - * Copyright (c) 2014 Qualcomm Atheros, Inc. - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include <linux/uaccess.h> - -#include "wil6210.h" -#include <uapi/linux/wil6210_uapi.h> - -#define wil_hex_dump_ioctl(prefix_str, buf, len) \ - print_hex_dump_debug("DBG[IOC ]" prefix_str, \ - DUMP_PREFIX_OFFSET, 16, 1, buf, len, true) -#define wil_dbg_ioctl(wil, fmt, arg...) wil_dbg(wil, "DBG[IOC ]" fmt, ##arg) - -static void __iomem *wil_ioc_addr(struct wil6210_priv *wil, uint32_t addr, - uint32_t size, enum wil_memio_op op) -{ - void __iomem *a; - u32 off; - - switch (op & wil_mmio_addr_mask) { - case wil_mmio_addr_linker: - a = wmi_buffer(wil, cpu_to_le32(addr)); - break; - case wil_mmio_addr_ahb: - a = wmi_addr(wil, addr); - break; - case wil_mmio_addr_bar: - a = wmi_addr(wil, addr + WIL6210_FW_HOST_OFF); - break; - default: - wil_err(wil, "Unsupported address mode, op = 0x%08x\n", op); - return NULL; - } - - off = a - wil->csr; - if (size >= WIL6210_MEM_SIZE - off) { - wil_err(wil, "Requested block does not fit into memory: " - "off = 0x%08x size = 0x%08x\n", off, size); - return NULL; - } - - return a; -} - -static int wil_ioc_memio_dword(struct wil6210_priv *wil, void __user *data) -{ - struct wil_memio io; - void __iomem *a; - bool need_copy = false; - - if (copy_from_user(&io, data, sizeof(io))) - return -EFAULT; - - wil_dbg_ioctl(wil, "IO: addr = 0x%08x val = 0x%08x op = 0x%08x\n", - io.addr, io.val, io.op); - - a = wil_ioc_addr(wil, io.addr, sizeof(u32), io.op); - if (!a) { - wil_err(wil, "invalid address 0x%08x, op = 0x%08x\n", io.addr, - io.op); - return -EINVAL; - } - /* operation */ - switch (io.op & wil_mmio_op_mask) { - case wil_mmio_read: - io.val = readl(a); - need_copy = true; - break; - case wil_mmio_write: - writel(io.val, a); - wmb(); /* make sure write propagated to HW */ - break; - default: - wil_err(wil, "Unsupported operation, op = 0x%08x\n", io.op); - return -EINVAL; - } - - if (need_copy) { - wil_dbg_ioctl(wil, "IO done: addr = 0x%08x" - " val = 0x%08x op = 0x%08x\n", - io.addr, io.val, io.op); - if (copy_to_user(data, &io, sizeof(io))) - return -EFAULT; - } - - return 0; -} - -static int wil_ioc_memio_block(struct wil6210_priv *wil, void __user *data) -{ - struct wil_memio_block io; - void *block; - void __iomem *a; - int rc = 0; - - if (copy_from_user(&io, data, sizeof(io))) - return -EFAULT; - - wil_dbg_ioctl(wil, "IO: addr = 0x%08x size = 0x%08x op = 0x%08x\n", - io.addr, io.size, io.op); - - /* size */ - if (io.size % 4) { - wil_err(wil, "size is not multiple of 4: 0x%08x\n", io.size); - return -EINVAL; - } - - a = wil_ioc_addr(wil, io.addr, io.size, io.op); - if (!a) { - wil_err(wil, "invalid address 0x%08x, op = 0x%08x\n", io.addr, - io.op); - return -EINVAL; - } - - block = kmalloc(io.size, GFP_USER); - if (!block) - return -ENOMEM; - - /* operation */ - switch (io.op & wil_mmio_op_mask) { - case wil_mmio_read: - wil_memcpy_fromio_32(block, a, io.size); - wil_hex_dump_ioctl("Read ", block, io.size); - if (copy_to_user(io.block, block, io.size)) { - rc = -EFAULT; - goto out_free; - } - break; - case wil_mmio_write: - if (copy_from_user(block, io.block, io.size)) { - rc = -EFAULT; - goto out_free; - } - wil_memcpy_toio_32(a, block, io.size); - wmb(); /* make sure write propagated to HW */ - wil_hex_dump_ioctl("Write ", block, io.size); - break; - default: - wil_err(wil, "Unsupported operation, op = 0x%08x\n", io.op); - rc = -EINVAL; - break; - } - -out_free: - kfree(block); - return rc; -} - -int wil_ioctl(struct wil6210_priv *wil, void __user *data, int cmd) -{ - int ret; - - switch (cmd) { - case WIL_IOCTL_MEMIO: - ret = wil_ioc_memio_dword(wil, data); - break; - case WIL_IOCTL_MEMIO_BLOCK: - ret = wil_ioc_memio_block(wil, data); - break; - default: - wil_dbg_ioctl(wil, "Unsupported IOCTL 0x%04x\n", cmd); - return -ENOIOCTLCMD; - } - - wil_dbg_ioctl(wil, "ioctl(0x%04x) -> %d\n", cmd, ret); - return ret; -} |