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771 lines
17 KiB
771 lines
17 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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Broadcom B43 wireless driver |
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debugfs driver debugging code |
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Copyright (c) 2005-2007 Michael Buesch <[email protected]> |
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*/ |
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#include <linux/fs.h> |
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#include <linux/debugfs.h> |
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#include <linux/slab.h> |
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#include <linux/netdevice.h> |
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#include <linux/pci.h> |
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#include <linux/mutex.h> |
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#include "b43.h" |
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#include "main.h" |
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#include "debugfs.h" |
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#include "dma.h" |
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#include "xmit.h" |
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/* The root directory. */ |
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static struct dentry *rootdir; |
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struct b43_debugfs_fops { |
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ssize_t (*read)(struct b43_wldev *dev, char *buf, size_t bufsize); |
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int (*write)(struct b43_wldev *dev, const char *buf, size_t count); |
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struct file_operations fops; |
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/* Offset of struct b43_dfs_file in struct b43_dfsentry */ |
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size_t file_struct_offset; |
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}; |
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static inline |
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struct b43_dfs_file *fops_to_dfs_file(struct b43_wldev *dev, |
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const struct b43_debugfs_fops *dfops) |
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{ |
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void *p; |
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p = dev->dfsentry; |
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p += dfops->file_struct_offset; |
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return p; |
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} |
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#define fappend(fmt, x...) \ |
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do { \ |
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if (bufsize - count) \ |
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count += scnprintf(buf + count, \ |
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bufsize - count, \ |
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fmt , ##x); \ |
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else \ |
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printk(KERN_ERR "b43: fappend overflow\n"); \ |
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} while (0) |
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/* The biggest address values for SHM access from the debugfs files. */ |
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#define B43_MAX_SHM_ROUTING 4 |
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#define B43_MAX_SHM_ADDR 0xFFFF |
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static ssize_t shm16read__read_file(struct b43_wldev *dev, |
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char *buf, size_t bufsize) |
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{ |
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ssize_t count = 0; |
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unsigned int routing, addr; |
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u16 val; |
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routing = dev->dfsentry->shm16read_routing_next; |
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addr = dev->dfsentry->shm16read_addr_next; |
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if ((routing > B43_MAX_SHM_ROUTING) || |
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(addr > B43_MAX_SHM_ADDR)) |
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return -EDESTADDRREQ; |
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val = b43_shm_read16(dev, routing, addr); |
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fappend("0x%04X\n", val); |
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return count; |
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} |
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static int shm16read__write_file(struct b43_wldev *dev, |
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const char *buf, size_t count) |
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{ |
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unsigned int routing, addr; |
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int res; |
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res = sscanf(buf, "0x%X 0x%X", &routing, &addr); |
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if (res != 2) |
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return -EINVAL; |
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if (routing > B43_MAX_SHM_ROUTING) |
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return -EADDRNOTAVAIL; |
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if (addr > B43_MAX_SHM_ADDR) |
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return -EADDRNOTAVAIL; |
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if (routing == B43_SHM_SHARED) { |
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if ((addr % 2) != 0) |
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return -EADDRNOTAVAIL; |
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} |
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dev->dfsentry->shm16read_routing_next = routing; |
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dev->dfsentry->shm16read_addr_next = addr; |
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return 0; |
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} |
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static int shm16write__write_file(struct b43_wldev *dev, |
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const char *buf, size_t count) |
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{ |
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unsigned int routing, addr, mask, set; |
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u16 val; |
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int res; |
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res = sscanf(buf, "0x%X 0x%X 0x%X 0x%X", |
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&routing, &addr, &mask, &set); |
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if (res != 4) |
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return -EINVAL; |
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if (routing > B43_MAX_SHM_ROUTING) |
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return -EADDRNOTAVAIL; |
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if (addr > B43_MAX_SHM_ADDR) |
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return -EADDRNOTAVAIL; |
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if (routing == B43_SHM_SHARED) { |
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if ((addr % 2) != 0) |
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return -EADDRNOTAVAIL; |
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} |
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if ((mask > 0xFFFF) || (set > 0xFFFF)) |
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return -E2BIG; |
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if (mask == 0) |
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val = 0; |
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else |
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val = b43_shm_read16(dev, routing, addr); |
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val &= mask; |
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val |= set; |
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b43_shm_write16(dev, routing, addr, val); |
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return 0; |
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} |
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static ssize_t shm32read__read_file(struct b43_wldev *dev, |
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char *buf, size_t bufsize) |
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{ |
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ssize_t count = 0; |
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unsigned int routing, addr; |
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u32 val; |
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routing = dev->dfsentry->shm32read_routing_next; |
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addr = dev->dfsentry->shm32read_addr_next; |
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if ((routing > B43_MAX_SHM_ROUTING) || |
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(addr > B43_MAX_SHM_ADDR)) |
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return -EDESTADDRREQ; |
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val = b43_shm_read32(dev, routing, addr); |
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fappend("0x%08X\n", val); |
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return count; |
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} |
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static int shm32read__write_file(struct b43_wldev *dev, |
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const char *buf, size_t count) |
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{ |
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unsigned int routing, addr; |
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int res; |
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res = sscanf(buf, "0x%X 0x%X", &routing, &addr); |
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if (res != 2) |
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return -EINVAL; |
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if (routing > B43_MAX_SHM_ROUTING) |
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return -EADDRNOTAVAIL; |
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if (addr > B43_MAX_SHM_ADDR) |
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return -EADDRNOTAVAIL; |
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if (routing == B43_SHM_SHARED) { |
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if ((addr % 2) != 0) |
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return -EADDRNOTAVAIL; |
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} |
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dev->dfsentry->shm32read_routing_next = routing; |
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dev->dfsentry->shm32read_addr_next = addr; |
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return 0; |
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} |
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static int shm32write__write_file(struct b43_wldev *dev, |
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const char *buf, size_t count) |
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{ |
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unsigned int routing, addr, mask, set; |
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u32 val; |
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int res; |
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res = sscanf(buf, "0x%X 0x%X 0x%X 0x%X", |
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&routing, &addr, &mask, &set); |
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if (res != 4) |
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return -EINVAL; |
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if (routing > B43_MAX_SHM_ROUTING) |
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return -EADDRNOTAVAIL; |
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if (addr > B43_MAX_SHM_ADDR) |
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return -EADDRNOTAVAIL; |
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if (routing == B43_SHM_SHARED) { |
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if ((addr % 2) != 0) |
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return -EADDRNOTAVAIL; |
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} |
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if ((mask > 0xFFFFFFFF) || (set > 0xFFFFFFFF)) |
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return -E2BIG; |
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if (mask == 0) |
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val = 0; |
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else |
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val = b43_shm_read32(dev, routing, addr); |
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val &= mask; |
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val |= set; |
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b43_shm_write32(dev, routing, addr, val); |
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return 0; |
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} |
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/* The biggest MMIO address that we allow access to from the debugfs files. */ |
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#define B43_MAX_MMIO_ACCESS (0xF00 - 1) |
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static ssize_t mmio16read__read_file(struct b43_wldev *dev, |
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char *buf, size_t bufsize) |
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{ |
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ssize_t count = 0; |
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unsigned int addr; |
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u16 val; |
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addr = dev->dfsentry->mmio16read_next; |
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if (addr > B43_MAX_MMIO_ACCESS) |
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return -EDESTADDRREQ; |
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val = b43_read16(dev, addr); |
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fappend("0x%04X\n", val); |
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return count; |
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} |
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static int mmio16read__write_file(struct b43_wldev *dev, |
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const char *buf, size_t count) |
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{ |
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unsigned int addr; |
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int res; |
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res = sscanf(buf, "0x%X", &addr); |
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if (res != 1) |
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return -EINVAL; |
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if (addr > B43_MAX_MMIO_ACCESS) |
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return -EADDRNOTAVAIL; |
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if ((addr % 2) != 0) |
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return -EINVAL; |
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dev->dfsentry->mmio16read_next = addr; |
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return 0; |
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} |
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static int mmio16write__write_file(struct b43_wldev *dev, |
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const char *buf, size_t count) |
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{ |
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unsigned int addr, mask, set; |
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int res; |
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u16 val; |
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res = sscanf(buf, "0x%X 0x%X 0x%X", &addr, &mask, &set); |
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if (res != 3) |
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return -EINVAL; |
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if (addr > B43_MAX_MMIO_ACCESS) |
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return -EADDRNOTAVAIL; |
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if ((mask > 0xFFFF) || (set > 0xFFFF)) |
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return -E2BIG; |
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if ((addr % 2) != 0) |
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return -EINVAL; |
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if (mask == 0) |
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val = 0; |
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else |
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val = b43_read16(dev, addr); |
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val &= mask; |
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val |= set; |
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b43_write16(dev, addr, val); |
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return 0; |
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} |
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static ssize_t mmio32read__read_file(struct b43_wldev *dev, |
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char *buf, size_t bufsize) |
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{ |
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ssize_t count = 0; |
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unsigned int addr; |
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u32 val; |
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addr = dev->dfsentry->mmio32read_next; |
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if (addr > B43_MAX_MMIO_ACCESS) |
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return -EDESTADDRREQ; |
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val = b43_read32(dev, addr); |
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fappend("0x%08X\n", val); |
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return count; |
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} |
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static int mmio32read__write_file(struct b43_wldev *dev, |
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const char *buf, size_t count) |
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{ |
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unsigned int addr; |
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int res; |
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res = sscanf(buf, "0x%X", &addr); |
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if (res != 1) |
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return -EINVAL; |
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if (addr > B43_MAX_MMIO_ACCESS) |
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return -EADDRNOTAVAIL; |
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if ((addr % 4) != 0) |
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return -EINVAL; |
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dev->dfsentry->mmio32read_next = addr; |
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return 0; |
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} |
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static int mmio32write__write_file(struct b43_wldev *dev, |
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const char *buf, size_t count) |
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{ |
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unsigned int addr, mask, set; |
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int res; |
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u32 val; |
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res = sscanf(buf, "0x%X 0x%X 0x%X", &addr, &mask, &set); |
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if (res != 3) |
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return -EINVAL; |
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if (addr > B43_MAX_MMIO_ACCESS) |
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return -EADDRNOTAVAIL; |
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if ((mask > 0xFFFFFFFF) || (set > 0xFFFFFFFF)) |
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return -E2BIG; |
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if ((addr % 4) != 0) |
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return -EINVAL; |
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if (mask == 0) |
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val = 0; |
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else |
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val = b43_read32(dev, addr); |
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val &= mask; |
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val |= set; |
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b43_write32(dev, addr, val); |
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return 0; |
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} |
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static ssize_t txstat_read_file(struct b43_wldev *dev, |
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char *buf, size_t bufsize) |
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{ |
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struct b43_txstatus_log *log = &dev->dfsentry->txstatlog; |
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ssize_t count = 0; |
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int i, idx; |
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struct b43_txstatus *stat; |
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if (log->end < 0) { |
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fappend("Nothing transmitted, yet\n"); |
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goto out; |
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} |
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fappend("b43 TX status reports:\n\n" |
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"index | cookie | seq | phy_stat | frame_count | " |
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"rts_count | supp_reason | pm_indicated | " |
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"intermediate | for_ampdu | acked\n" "---\n"); |
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i = log->end + 1; |
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idx = 0; |
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while (1) { |
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if (i == B43_NR_LOGGED_TXSTATUS) |
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i = 0; |
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stat = &(log->log[i]); |
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if (stat->cookie) { |
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fappend("%03d | " |
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"0x%04X | 0x%04X | 0x%02X | " |
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"0x%X | 0x%X | " |
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"%u | %u | " |
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"%u | %u | %u\n", |
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idx, |
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stat->cookie, stat->seq, stat->phy_stat, |
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stat->frame_count, stat->rts_count, |
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stat->supp_reason, stat->pm_indicated, |
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stat->intermediate, stat->for_ampdu, |
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stat->acked); |
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idx++; |
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} |
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if (i == log->end) |
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break; |
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i++; |
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} |
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out: |
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return count; |
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} |
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static int restart_write_file(struct b43_wldev *dev, |
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const char *buf, size_t count) |
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{ |
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int err = 0; |
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if (count > 0 && buf[0] == '1') { |
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b43_controller_restart(dev, "manually restarted"); |
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} else |
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err = -EINVAL; |
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return err; |
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} |
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static unsigned long calc_expire_secs(unsigned long now, |
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unsigned long time, |
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unsigned long expire) |
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{ |
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expire = time + expire; |
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if (time_after(now, expire)) |
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return 0; /* expired */ |
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if (expire < now) { |
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/* jiffies wrapped */ |
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expire -= MAX_JIFFY_OFFSET; |
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now -= MAX_JIFFY_OFFSET; |
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} |
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B43_WARN_ON(expire < now); |
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return (expire - now) / HZ; |
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} |
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static ssize_t loctls_read_file(struct b43_wldev *dev, |
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char *buf, size_t bufsize) |
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{ |
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ssize_t count = 0; |
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struct b43_txpower_lo_control *lo; |
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int i, err = 0; |
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struct b43_lo_calib *cal; |
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unsigned long now = jiffies; |
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struct b43_phy *phy = &dev->phy; |
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if (phy->type != B43_PHYTYPE_G) { |
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fappend("Device is not a G-PHY\n"); |
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err = -ENODEV; |
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goto out; |
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} |
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lo = phy->g->lo_control; |
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fappend("-- Local Oscillator calibration data --\n\n"); |
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fappend("HW-power-control enabled: %d\n", |
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dev->phy.hardware_power_control); |
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fappend("TX Bias: 0x%02X, TX Magn: 0x%02X (expire in %lu sec)\n", |
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lo->tx_bias, lo->tx_magn, |
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calc_expire_secs(now, lo->txctl_measured_time, |
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B43_LO_TXCTL_EXPIRE)); |
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fappend("Power Vector: 0x%08X%08X (expires in %lu sec)\n", |
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(unsigned int)((lo->power_vector & 0xFFFFFFFF00000000ULL) >> 32), |
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(unsigned int)(lo->power_vector & 0x00000000FFFFFFFFULL), |
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calc_expire_secs(now, lo->pwr_vec_read_time, |
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B43_LO_PWRVEC_EXPIRE)); |
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fappend("\nCalibrated settings:\n"); |
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list_for_each_entry(cal, &lo->calib_list, list) { |
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bool active; |
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active = (b43_compare_bbatt(&cal->bbatt, &phy->g->bbatt) && |
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b43_compare_rfatt(&cal->rfatt, &phy->g->rfatt)); |
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fappend("BB(%d), RF(%d,%d) -> I=%d, Q=%d " |
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"(expires in %lu sec)%s\n", |
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cal->bbatt.att, |
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cal->rfatt.att, cal->rfatt.with_padmix, |
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cal->ctl.i, cal->ctl.q, |
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calc_expire_secs(now, cal->calib_time, |
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B43_LO_CALIB_EXPIRE), |
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active ? " ACTIVE" : ""); |
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} |
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fappend("\nUsed RF attenuation values: Value(WithPadmix flag)\n"); |
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for (i = 0; i < lo->rfatt_list.len; i++) { |
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fappend("%u(%d), ", |
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lo->rfatt_list.list[i].att, |
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lo->rfatt_list.list[i].with_padmix); |
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} |
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fappend("\n"); |
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fappend("\nUsed Baseband attenuation values:\n"); |
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for (i = 0; i < lo->bbatt_list.len; i++) { |
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fappend("%u, ", |
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lo->bbatt_list.list[i].att); |
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} |
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fappend("\n"); |
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out: |
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return err ? err : count; |
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} |
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#undef fappend |
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static ssize_t b43_debugfs_read(struct file *file, char __user *userbuf, |
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size_t count, loff_t *ppos) |
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{ |
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struct b43_wldev *dev; |
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struct b43_debugfs_fops *dfops; |
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struct b43_dfs_file *dfile; |
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ssize_t ret; |
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char *buf; |
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const size_t bufsize = 1024 * 16; /* 16 kiB buffer */ |
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const size_t buforder = get_order(bufsize); |
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int err = 0; |
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|
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if (!count) |
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return 0; |
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dev = file->private_data; |
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if (!dev) |
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return -ENODEV; |
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mutex_lock(&dev->wl->mutex); |
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if (b43_status(dev) < B43_STAT_INITIALIZED) { |
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err = -ENODEV; |
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goto out_unlock; |
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} |
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dfops = container_of(debugfs_real_fops(file), |
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struct b43_debugfs_fops, fops); |
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if (!dfops->read) { |
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err = -ENOSYS; |
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goto out_unlock; |
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} |
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dfile = fops_to_dfs_file(dev, dfops); |
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|
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if (!dfile->buffer) { |
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buf = (char *)__get_free_pages(GFP_KERNEL, buforder); |
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if (!buf) { |
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err = -ENOMEM; |
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goto out_unlock; |
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} |
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memset(buf, 0, bufsize); |
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ret = dfops->read(dev, buf, bufsize); |
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if (ret <= 0) { |
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free_pages((unsigned long)buf, buforder); |
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err = ret; |
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goto out_unlock; |
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} |
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dfile->data_len = ret; |
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dfile->buffer = buf; |
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} |
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|
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ret = simple_read_from_buffer(userbuf, count, ppos, |
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dfile->buffer, |
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dfile->data_len); |
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if (*ppos >= dfile->data_len) { |
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free_pages((unsigned long)dfile->buffer, buforder); |
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dfile->buffer = NULL; |
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dfile->data_len = 0; |
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} |
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out_unlock: |
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mutex_unlock(&dev->wl->mutex); |
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|
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return err ? err : ret; |
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} |
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|
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static ssize_t b43_debugfs_write(struct file *file, |
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const char __user *userbuf, |
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size_t count, loff_t *ppos) |
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{ |
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struct b43_wldev *dev; |
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struct b43_debugfs_fops *dfops; |
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char *buf; |
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int err = 0; |
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|
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if (!count) |
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return 0; |
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if (count > PAGE_SIZE) |
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return -E2BIG; |
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dev = file->private_data; |
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if (!dev) |
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return -ENODEV; |
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|
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mutex_lock(&dev->wl->mutex); |
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if (b43_status(dev) < B43_STAT_INITIALIZED) { |
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err = -ENODEV; |
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goto out_unlock; |
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} |
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|
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dfops = container_of(debugfs_real_fops(file), |
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struct b43_debugfs_fops, fops); |
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if (!dfops->write) { |
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err = -ENOSYS; |
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goto out_unlock; |
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} |
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|
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buf = (char *)get_zeroed_page(GFP_KERNEL); |
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if (!buf) { |
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err = -ENOMEM; |
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goto out_unlock; |
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} |
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if (copy_from_user(buf, userbuf, count)) { |
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err = -EFAULT; |
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goto out_freepage; |
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} |
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err = dfops->write(dev, buf, count); |
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if (err) |
|
goto out_freepage; |
|
|
|
out_freepage: |
|
free_page((unsigned long)buf); |
|
out_unlock: |
|
mutex_unlock(&dev->wl->mutex); |
|
|
|
return err ? err : count; |
|
} |
|
|
|
|
|
#define B43_DEBUGFS_FOPS(name, _read, _write) \ |
|
static struct b43_debugfs_fops fops_##name = { \ |
|
.read = _read, \ |
|
.write = _write, \ |
|
.fops = { \ |
|
.open = simple_open, \ |
|
.read = b43_debugfs_read, \ |
|
.write = b43_debugfs_write, \ |
|
.llseek = generic_file_llseek, \ |
|
}, \ |
|
.file_struct_offset = offsetof(struct b43_dfsentry, \ |
|
file_##name), \ |
|
} |
|
|
|
B43_DEBUGFS_FOPS(shm16read, shm16read__read_file, shm16read__write_file); |
|
B43_DEBUGFS_FOPS(shm16write, NULL, shm16write__write_file); |
|
B43_DEBUGFS_FOPS(shm32read, shm32read__read_file, shm32read__write_file); |
|
B43_DEBUGFS_FOPS(shm32write, NULL, shm32write__write_file); |
|
B43_DEBUGFS_FOPS(mmio16read, mmio16read__read_file, mmio16read__write_file); |
|
B43_DEBUGFS_FOPS(mmio16write, NULL, mmio16write__write_file); |
|
B43_DEBUGFS_FOPS(mmio32read, mmio32read__read_file, mmio32read__write_file); |
|
B43_DEBUGFS_FOPS(mmio32write, NULL, mmio32write__write_file); |
|
B43_DEBUGFS_FOPS(txstat, txstat_read_file, NULL); |
|
B43_DEBUGFS_FOPS(restart, NULL, restart_write_file); |
|
B43_DEBUGFS_FOPS(loctls, loctls_read_file, NULL); |
|
|
|
|
|
bool b43_debug(struct b43_wldev *dev, enum b43_dyndbg feature) |
|
{ |
|
bool enabled; |
|
|
|
enabled = (dev->dfsentry && dev->dfsentry->dyn_debug[feature]); |
|
if (unlikely(enabled)) { |
|
/* Force full debugging messages, if the user enabled |
|
* some dynamic debugging feature. */ |
|
b43_modparam_verbose = B43_VERBOSITY_MAX; |
|
} |
|
|
|
return enabled; |
|
} |
|
|
|
static void b43_add_dynamic_debug(struct b43_wldev *dev) |
|
{ |
|
struct b43_dfsentry *e = dev->dfsentry; |
|
|
|
#define add_dyn_dbg(name, id, initstate) do { \ |
|
e->dyn_debug[id] = (initstate); \ |
|
debugfs_create_bool(name, 0600, e->subdir, \ |
|
&(e->dyn_debug[id])); \ |
|
} while (0) |
|
|
|
add_dyn_dbg("debug_xmitpower", B43_DBG_XMITPOWER, false); |
|
add_dyn_dbg("debug_dmaoverflow", B43_DBG_DMAOVERFLOW, false); |
|
add_dyn_dbg("debug_dmaverbose", B43_DBG_DMAVERBOSE, false); |
|
add_dyn_dbg("debug_pwork_fast", B43_DBG_PWORK_FAST, false); |
|
add_dyn_dbg("debug_pwork_stop", B43_DBG_PWORK_STOP, false); |
|
add_dyn_dbg("debug_lo", B43_DBG_LO, false); |
|
add_dyn_dbg("debug_firmware", B43_DBG_FIRMWARE, false); |
|
add_dyn_dbg("debug_keys", B43_DBG_KEYS, false); |
|
add_dyn_dbg("debug_verbose_stats", B43_DBG_VERBOSESTATS, false); |
|
|
|
#undef add_dyn_dbg |
|
} |
|
|
|
void b43_debugfs_add_device(struct b43_wldev *dev) |
|
{ |
|
struct b43_dfsentry *e; |
|
struct b43_txstatus_log *log; |
|
char devdir[16]; |
|
|
|
B43_WARN_ON(!dev); |
|
e = kzalloc(sizeof(*e), GFP_KERNEL); |
|
if (!e) { |
|
b43err(dev->wl, "debugfs: add device OOM\n"); |
|
return; |
|
} |
|
e->dev = dev; |
|
log = &e->txstatlog; |
|
log->log = kcalloc(B43_NR_LOGGED_TXSTATUS, |
|
sizeof(struct b43_txstatus), GFP_KERNEL); |
|
if (!log->log) { |
|
b43err(dev->wl, "debugfs: add device txstatus OOM\n"); |
|
kfree(e); |
|
return; |
|
} |
|
log->end = -1; |
|
|
|
dev->dfsentry = e; |
|
|
|
snprintf(devdir, sizeof(devdir), "%s", wiphy_name(dev->wl->hw->wiphy)); |
|
e->subdir = debugfs_create_dir(devdir, rootdir); |
|
|
|
e->mmio16read_next = 0xFFFF; /* invalid address */ |
|
e->mmio32read_next = 0xFFFF; /* invalid address */ |
|
e->shm16read_routing_next = 0xFFFFFFFF; /* invalid routing */ |
|
e->shm16read_addr_next = 0xFFFFFFFF; /* invalid address */ |
|
e->shm32read_routing_next = 0xFFFFFFFF; /* invalid routing */ |
|
e->shm32read_addr_next = 0xFFFFFFFF; /* invalid address */ |
|
|
|
#define ADD_FILE(name, mode) \ |
|
do { \ |
|
debugfs_create_file(__stringify(name), \ |
|
mode, e->subdir, dev, \ |
|
&fops_##name.fops); \ |
|
} while (0) |
|
|
|
|
|
ADD_FILE(shm16read, 0600); |
|
ADD_FILE(shm16write, 0200); |
|
ADD_FILE(shm32read, 0600); |
|
ADD_FILE(shm32write, 0200); |
|
ADD_FILE(mmio16read, 0600); |
|
ADD_FILE(mmio16write, 0200); |
|
ADD_FILE(mmio32read, 0600); |
|
ADD_FILE(mmio32write, 0200); |
|
ADD_FILE(txstat, 0400); |
|
ADD_FILE(restart, 0200); |
|
ADD_FILE(loctls, 0400); |
|
|
|
#undef ADD_FILE |
|
|
|
b43_add_dynamic_debug(dev); |
|
} |
|
|
|
void b43_debugfs_remove_device(struct b43_wldev *dev) |
|
{ |
|
struct b43_dfsentry *e; |
|
|
|
if (!dev) |
|
return; |
|
e = dev->dfsentry; |
|
if (!e) |
|
return; |
|
|
|
debugfs_remove(e->subdir); |
|
kfree(e->txstatlog.log); |
|
kfree(e); |
|
} |
|
|
|
void b43_debugfs_log_txstat(struct b43_wldev *dev, |
|
const struct b43_txstatus *status) |
|
{ |
|
struct b43_dfsentry *e = dev->dfsentry; |
|
struct b43_txstatus_log *log; |
|
struct b43_txstatus *cur; |
|
int i; |
|
|
|
if (!e) |
|
return; |
|
log = &e->txstatlog; |
|
i = log->end + 1; |
|
if (i == B43_NR_LOGGED_TXSTATUS) |
|
i = 0; |
|
log->end = i; |
|
cur = &(log->log[i]); |
|
memcpy(cur, status, sizeof(*cur)); |
|
} |
|
|
|
void b43_debugfs_init(void) |
|
{ |
|
rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL); |
|
} |
|
|
|
void b43_debugfs_exit(void) |
|
{ |
|
debugfs_remove(rootdir); |
|
}
|
|
|