diff options
Diffstat (limited to 'drivers/net/wireless/b43/debugfs.c')
| -rw-r--r-- | drivers/net/wireless/b43/debugfs.c | 359 |
1 files changed, 321 insertions, 38 deletions
diff --git a/drivers/net/wireless/b43/debugfs.c b/drivers/net/wireless/b43/debugfs.c index 210e2789c1c..29851bc1101 100644 --- a/drivers/net/wireless/b43/debugfs.c +++ b/drivers/net/wireless/b43/debugfs.c @@ -74,70 +74,327 @@ struct b43_dfs_file * fops_to_dfs_file(struct b43_wldev *dev, } while (0) -/* wl->irq_lock is locked */ -static ssize_t tsf_read_file(struct b43_wldev *dev, - char *buf, size_t bufsize) +/* The biggest address values for SHM access from the debugfs files. */ +#define B43_MAX_SHM_ROUTING 4 +#define B43_MAX_SHM_ADDR 0xFFFF + +static ssize_t shm16read__read_file(struct b43_wldev *dev, + char *buf, size_t bufsize) { ssize_t count = 0; - u64 tsf; + unsigned int routing, addr; + u16 val; - b43_tsf_read(dev, &tsf); - fappend("0x%08x%08x\n", - (unsigned int)((tsf & 0xFFFFFFFF00000000ULL) >> 32), - (unsigned int)(tsf & 0xFFFFFFFFULL)); + routing = dev->dfsentry->shm16read_routing_next; + addr = dev->dfsentry->shm16read_addr_next; + if ((routing > B43_MAX_SHM_ROUTING) || + (addr > B43_MAX_SHM_ADDR)) + return -EDESTADDRREQ; + + val = b43_shm_read16(dev, routing, addr); + fappend("0x%04X\n", val); return count; } -/* wl->irq_lock is locked */ -static int tsf_write_file(struct b43_wldev *dev, - const char *buf, size_t count) +static int shm16read__write_file(struct b43_wldev *dev, + const char *buf, size_t count) { - u64 tsf; + unsigned int routing, addr; + int res; - if (sscanf(buf, "%llu", (unsigned long long *)(&tsf)) != 1) + res = sscanf(buf, "0x%X 0x%X", &routing, &addr); + if (res != 2) return -EINVAL; - b43_tsf_write(dev, tsf); + if (routing > B43_MAX_SHM_ROUTING) + return -EADDRNOTAVAIL; + if (addr > B43_MAX_SHM_ADDR) + return -EADDRNOTAVAIL; + if (routing == B43_SHM_SHARED) { + if ((addr % 2) != 0) + return -EADDRNOTAVAIL; + } + + dev->dfsentry->shm16read_routing_next = routing; + dev->dfsentry->shm16read_addr_next = addr; return 0; } -/* wl->irq_lock is locked */ -static ssize_t ucode_regs_read_file(struct b43_wldev *dev, +static int shm16write__write_file(struct b43_wldev *dev, + const char *buf, size_t count) +{ + unsigned int routing, addr, mask, set; + u16 val; + int res; + unsigned long flags; + + res = sscanf(buf, "0x%X 0x%X 0x%X 0x%X", + &routing, &addr, &mask, &set); + if (res != 4) + return -EINVAL; + if (routing > B43_MAX_SHM_ROUTING) + return -EADDRNOTAVAIL; + if (addr > B43_MAX_SHM_ADDR) + return -EADDRNOTAVAIL; + if (routing == B43_SHM_SHARED) { + if ((addr % 2) != 0) + return -EADDRNOTAVAIL; + } + if ((mask > 0xFFFF) || (set > 0xFFFF)) + return -E2BIG; + + spin_lock_irqsave(&dev->wl->shm_lock, flags); + if (mask == 0) + val = 0; + else + val = __b43_shm_read16(dev, routing, addr); + val &= mask; + val |= set; + __b43_shm_write16(dev, routing, addr, val); + spin_unlock_irqrestore(&dev->wl->shm_lock, flags); + + return 0; +} + +static ssize_t shm32read__read_file(struct b43_wldev *dev, char *buf, size_t bufsize) { ssize_t count = 0; - int i; + unsigned int routing, addr; + u32 val; + + routing = dev->dfsentry->shm32read_routing_next; + addr = dev->dfsentry->shm32read_addr_next; + if ((routing > B43_MAX_SHM_ROUTING) || + (addr > B43_MAX_SHM_ADDR)) + return -EDESTADDRREQ; - for (i = 0; i < 64; i++) { - fappend("r%d = 0x%04x\n", i, - b43_shm_read16(dev, B43_SHM_SCRATCH, i)); + val = b43_shm_read32(dev, routing, addr); + fappend("0x%08X\n", val); + + return count; +} + +static int shm32read__write_file(struct b43_wldev *dev, + const char *buf, size_t count) +{ + unsigned int routing, addr; + int res; + + res = sscanf(buf, "0x%X 0x%X", &routing, &addr); + if (res != 2) + return -EINVAL; + if (routing > B43_MAX_SHM_ROUTING) + return -EADDRNOTAVAIL; + if (addr > B43_MAX_SHM_ADDR) + return -EADDRNOTAVAIL; + if (routing == B43_SHM_SHARED) { + if ((addr % 2) != 0) + return -EADDRNOTAVAIL; + } + + dev->dfsentry->shm32read_routing_next = routing; + dev->dfsentry->shm32read_addr_next = addr; + + return 0; +} + +static int shm32write__write_file(struct b43_wldev *dev, + const char *buf, size_t count) +{ + unsigned int routing, addr, mask, set; + u32 val; + int res; + unsigned long flags; + + res = sscanf(buf, "0x%X 0x%X 0x%X 0x%X", + &routing, &addr, &mask, &set); + if (res != 4) + return -EINVAL; + if (routing > B43_MAX_SHM_ROUTING) + return -EADDRNOTAVAIL; + if (addr > B43_MAX_SHM_ADDR) + return -EADDRNOTAVAIL; + if (routing == B43_SHM_SHARED) { + if ((addr % 2) != 0) + return -EADDRNOTAVAIL; } + if ((mask > 0xFFFFFFFF) || (set > 0xFFFFFFFF)) + return -E2BIG; + + spin_lock_irqsave(&dev->wl->shm_lock, flags); + if (mask == 0) + val = 0; + else + val = __b43_shm_read32(dev, routing, addr); + val &= mask; + val |= set; + __b43_shm_write32(dev, routing, addr, val); + spin_unlock_irqrestore(&dev->wl->shm_lock, flags); + + return 0; +} + +/* The biggest MMIO address that we allow access to from the debugfs files. */ +#define B43_MAX_MMIO_ACCESS (0xF00 - 1) + +static ssize_t mmio16read__read_file(struct b43_wldev *dev, + char *buf, size_t bufsize) +{ + ssize_t count = 0; + unsigned int addr; + u16 val; + + addr = dev->dfsentry->mmio16read_next; + if (addr > B43_MAX_MMIO_ACCESS) + return -EDESTADDRREQ; + + val = b43_read16(dev, addr); + fappend("0x%04X\n", val); + + return count; +} + +static int mmio16read__write_file(struct b43_wldev *dev, + const char *buf, size_t count) +{ + unsigned int addr; + int res; + + res = sscanf(buf, "0x%X", &addr); + if (res != 1) + return -EINVAL; + if (addr > B43_MAX_MMIO_ACCESS) + return -EADDRNOTAVAIL; + if ((addr % 2) != 0) + return -EINVAL; + + dev->dfsentry->mmio16read_next = addr; + + return 0; +} + +static int mmio16write__write_file(struct b43_wldev *dev, + const char *buf, size_t count) +{ + unsigned int addr, mask, set; + int res; + u16 val; + + res = sscanf(buf, "0x%X 0x%X 0x%X", &addr, &mask, &set); + if (res != 3) + return -EINVAL; + if (addr > B43_MAX_MMIO_ACCESS) + return -EADDRNOTAVAIL; + if ((mask > 0xFFFF) || (set > 0xFFFF)) + return -E2BIG; + if ((addr % 2) != 0) + return -EINVAL; + + if (mask == 0) + val = 0; + else + val = b43_read16(dev, addr); + val &= mask; + val |= set; + b43_write16(dev, addr, val); + + return 0; +} + +static ssize_t mmio32read__read_file(struct b43_wldev *dev, + char *buf, size_t bufsize) +{ + ssize_t count = 0; + unsigned int addr; + u32 val; + + addr = dev->dfsentry->mmio32read_next; + if (addr > B43_MAX_MMIO_ACCESS) + return -EDESTADDRREQ; + + val = b43_read32(dev, addr); + fappend("0x%08X\n", val); return count; } +static int mmio32read__write_file(struct b43_wldev *dev, + const char *buf, size_t count) +{ + unsigned int addr; + int res; + + res = sscanf(buf, "0x%X", &addr); + if (res != 1) + return -EINVAL; + if (addr > B43_MAX_MMIO_ACCESS) + return -EADDRNOTAVAIL; + if ((addr % 4) != 0) + return -EINVAL; + + dev->dfsentry->mmio32read_next = addr; + + return 0; +} + +static int mmio32write__write_file(struct b43_wldev *dev, + const char *buf, size_t count) +{ + unsigned int addr, mask, set; + int res; + u32 val; + + res = sscanf(buf, "0x%X 0x%X 0x%X", &addr, &mask, &set); + if (res != 3) + return -EINVAL; + if (addr > B43_MAX_MMIO_ACCESS) + return -EADDRNOTAVAIL; + if ((mask > 0xFFFFFFFF) || (set > 0xFFFFFFFF)) + return -E2BIG; + if ((addr % 4) != 0) + return -EINVAL; + + if (mask == 0) + val = 0; + else + val = b43_read32(dev, addr); + val &= mask; + val |= set; + b43_write32(dev, addr, val); + + return 0; +} + /* wl->irq_lock is locked */ -static ssize_t shm_read_file(struct b43_wldev *dev, +static ssize_t tsf_read_file(struct b43_wldev *dev, char *buf, size_t bufsize) { ssize_t count = 0; - int i; - u16 tmp; - __le16 *le16buf = (__le16 *)buf; + u64 tsf; - for (i = 0; i < 0x1000; i++) { - if (bufsize < sizeof(tmp)) - break; - tmp = b43_shm_read16(dev, B43_SHM_SHARED, 2 * i); - le16buf[i] = cpu_to_le16(tmp); - count += sizeof(tmp); - bufsize -= sizeof(tmp); - } + b43_tsf_read(dev, &tsf); + fappend("0x%08x%08x\n", + (unsigned int)((tsf & 0xFFFFFFFF00000000ULL) >> 32), + (unsigned int)(tsf & 0xFFFFFFFFULL)); return count; } +/* wl->irq_lock is locked */ +static int tsf_write_file(struct b43_wldev *dev, + const char *buf, size_t count) +{ + u64 tsf; + + if (sscanf(buf, "%llu", (unsigned long long *)(&tsf)) != 1) + return -EINVAL; + b43_tsf_write(dev, tsf); + + return 0; +} + static ssize_t txstat_read_file(struct b43_wldev *dev, char *buf, size_t bufsize) { @@ -496,9 +753,15 @@ out_unlock: .take_irqlock = _take_irqlock, \ } +B43_DEBUGFS_FOPS(shm16read, shm16read__read_file, shm16read__write_file, 1); +B43_DEBUGFS_FOPS(shm16write, NULL, shm16write__write_file, 1); +B43_DEBUGFS_FOPS(shm32read, shm32read__read_file, shm32read__write_file, 1); +B43_DEBUGFS_FOPS(shm32write, NULL, shm32write__write_file, 1); +B43_DEBUGFS_FOPS(mmio16read, mmio16read__read_file, mmio16read__write_file, 1); +B43_DEBUGFS_FOPS(mmio16write, NULL, mmio16write__write_file, 1); +B43_DEBUGFS_FOPS(mmio32read, mmio32read__read_file, mmio32read__write_file, 1); +B43_DEBUGFS_FOPS(mmio32write, NULL, mmio32write__write_file, 1); B43_DEBUGFS_FOPS(tsf, tsf_read_file, tsf_write_file, 1); -B43_DEBUGFS_FOPS(ucode_regs, ucode_regs_read_file, NULL, 1); -B43_DEBUGFS_FOPS(shm, shm_read_file, NULL, 1); B43_DEBUGFS_FOPS(txstat, txstat_read_file, NULL, 0); B43_DEBUGFS_FOPS(txpower_g, txpower_g_read_file, txpower_g_write_file, 0); B43_DEBUGFS_FOPS(restart, NULL, restart_write_file, 1); @@ -538,6 +801,7 @@ static void b43_add_dynamic_debug(struct b43_wldev *dev) add_dyn_dbg("debug_pwork_fast", B43_DBG_PWORK_FAST, 0); add_dyn_dbg("debug_pwork_stop", B43_DBG_PWORK_STOP, 0); add_dyn_dbg("debug_lo", B43_DBG_LO, 0); + add_dyn_dbg("debug_firmware", B43_DBG_FIRMWARE, 0); #undef add_dyn_dbg } @@ -584,6 +848,13 @@ void b43_debugfs_add_device(struct b43_wldev *dev) return; } + 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 { \ struct dentry *d; \ @@ -596,9 +867,15 @@ void b43_debugfs_add_device(struct b43_wldev *dev) } 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(tsf, 0600); - ADD_FILE(ucode_regs, 0400); - ADD_FILE(shm, 0400); ADD_FILE(txstat, 0400); ADD_FILE(txpower_g, 0600); ADD_FILE(restart, 0200); @@ -620,9 +897,15 @@ void b43_debugfs_remove_device(struct b43_wldev *dev) return; b43_remove_dynamic_debug(dev); + debugfs_remove(e->file_shm16read.dentry); + debugfs_remove(e->file_shm16write.dentry); + debugfs_remove(e->file_shm32read.dentry); + debugfs_remove(e->file_shm32write.dentry); + debugfs_remove(e->file_mmio16read.dentry); + debugfs_remove(e->file_mmio16write.dentry); + debugfs_remove(e->file_mmio32read.dentry); + debugfs_remove(e->file_mmio32write.dentry); debugfs_remove(e->file_tsf.dentry); - debugfs_remove(e->file_ucode_regs.dentry); - debugfs_remove(e->file_shm.dentry); debugfs_remove(e->file_txstat.dentry); debugfs_remove(e->file_txpower_g.dentry); debugfs_remove(e->file_restart.dentry); |