summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/b43/debugfs.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-20 17:43:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-20 17:43:29 -0700
commitdb6d8c7a4027b48d797b369a53f8470aaeed7063 (patch)
treee140c104a89abc2154e1f41a7db8ebecbb6fa0b4 /drivers/net/wireless/b43/debugfs.c
parent3a533374283aea50eab3976d8a6d30532175f009 (diff)
parentfb65a7c091529bfffb1262515252c0d0f6241c5c (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (1232 commits) iucv: Fix bad merging. net_sched: Add size table for qdiscs net_sched: Add accessor function for packet length for qdiscs net_sched: Add qdisc_enqueue wrapper highmem: Export totalhigh_pages. ipv6 mcast: Omit redundant address family checks in ip6_mc_source(). net: Use standard structures for generic socket address structures. ipv6 netns: Make several "global" sysctl variables namespace aware. netns: Use net_eq() to compare net-namespaces for optimization. ipv6: remove unused macros from net/ipv6.h ipv6: remove unused parameter from ip6_ra_control tcp: fix kernel panic with listening_get_next tcp: Remove redundant checks when setting eff_sacks tcp: options clean up tcp: Fix MD5 signatures for non-linear skbs sctp: Update sctp global memory limit allocations. sctp: remove unnecessary byteshifting, calculate directly in big-endian sctp: Allow only 1 listening socket with SO_REUSEADDR sctp: Do not leak memory on multiple listen() calls sctp: Support ipv6only AF_INET6 sockets. ...
Diffstat (limited to 'drivers/net/wireless/b43/debugfs.c')
-rw-r--r--drivers/net/wireless/b43/debugfs.c436
1 files changed, 367 insertions, 69 deletions
diff --git a/drivers/net/wireless/b43/debugfs.c b/drivers/net/wireless/b43/debugfs.c
index 7fca2ebc747..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;
+
+ val = b43_shm_read32(dev, routing, addr);
+ fappend("0x%08X\n", val);
- for (i = 0; i < 64; i++) {
- fappend("r%d = 0x%04x\n", i,
- b43_shm_read16(dev, B43_SHM_SCRATCH, i));
+ 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)
{
@@ -270,24 +527,22 @@ static int restart_write_file(struct b43_wldev *dev,
return err;
}
-static ssize_t append_lo_table(ssize_t count, char *buf, const size_t bufsize,
- struct b43_loctl table[B43_NR_BB][B43_NR_RF])
+static unsigned long calc_expire_secs(unsigned long now,
+ unsigned long time,
+ unsigned long expire)
{
- unsigned int i, j;
- struct b43_loctl *ctl;
-
- for (i = 0; i < B43_NR_BB; i++) {
- for (j = 0; j < B43_NR_RF; j++) {
- ctl = &(table[i][j]);
- fappend("(bbatt %2u, rfatt %2u) -> "
- "(I %+3d, Q %+3d, Used: %d, Calibrated: %d)\n",
- i, j, ctl->i, ctl->q,
- ctl->used,
- b43_loctl_is_calibrated(ctl));
- }
+ expire = time + expire;
+
+ if (time_after(now, expire))
+ return 0; /* expired */
+ if (expire < now) {
+ /* jiffies wrapped */
+ expire -= MAX_JIFFY_OFFSET;
+ now -= MAX_JIFFY_OFFSET;
}
+ B43_WARN_ON(expire < now);
- return count;
+ return (expire - now) / HZ;
}
static ssize_t loctls_read_file(struct b43_wldev *dev,
@@ -296,27 +551,45 @@ static ssize_t loctls_read_file(struct b43_wldev *dev,
ssize_t count = 0;
struct b43_txpower_lo_control *lo;
int i, err = 0;
+ struct b43_lo_calib *cal;
+ unsigned long now = jiffies;
+ struct b43_phy *phy = &dev->phy;
- if (dev->phy.type != B43_PHYTYPE_G) {
+ if (phy->type != B43_PHYTYPE_G) {
fappend("Device is not a G-PHY\n");
err = -ENODEV;
goto out;
}
- lo = dev->phy.lo_control;
+ lo = phy->lo_control;
fappend("-- Local Oscillator calibration data --\n\n");
- fappend("Measured: %d, Rebuild: %d, HW-power-control: %d\n",
- lo->lo_measured,
- lo->rebuild,
+ fappend("HW-power-control enabled: %d\n",
dev->phy.hardware_power_control);
- fappend("TX Bias: 0x%02X, TX Magn: 0x%02X\n",
- lo->tx_bias, lo->tx_magn);
- fappend("Power Vector: 0x%08X%08X\n",
+ fappend("TX Bias: 0x%02X, TX Magn: 0x%02X (expire in %lu sec)\n",
+ lo->tx_bias, lo->tx_magn,
+ calc_expire_secs(now, lo->txctl_measured_time,
+ B43_LO_TXCTL_EXPIRE));
+ fappend("Power Vector: 0x%08X%08X (expires in %lu sec)\n",
(unsigned int)((lo->power_vector & 0xFFFFFFFF00000000ULL) >> 32),
- (unsigned int)(lo->power_vector & 0x00000000FFFFFFFFULL));
- fappend("\nControl table WITH PADMIX:\n");
- count = append_lo_table(count, buf, bufsize, lo->with_padmix);
- fappend("\nControl table WITHOUT PADMIX:\n");
- count = append_lo_table(count, buf, bufsize, lo->no_padmix);
+ (unsigned int)(lo->power_vector & 0x00000000FFFFFFFFULL),
+ calc_expire_secs(now, lo->pwr_vec_read_time,
+ B43_LO_PWRVEC_EXPIRE));
+
+ fappend("\nCalibrated settings:\n");
+ list_for_each_entry(cal, &lo->calib_list, list) {
+ bool active;
+
+ active = (b43_compare_bbatt(&cal->bbatt, &phy->bbatt) &&
+ b43_compare_rfatt(&cal->rfatt, &phy->rfatt));
+ fappend("BB(%d), RF(%d,%d) -> I=%d, Q=%d "
+ "(expires in %lu sec)%s\n",
+ cal->bbatt.att,
+ cal->rfatt.att, cal->rfatt.with_padmix,
+ cal->ctl.i, cal->ctl.q,
+ calc_expire_secs(now, cal->calib_time,
+ B43_LO_CALIB_EXPIRE),
+ active ? " ACTIVE" : "");
+ }
+
fappend("\nUsed RF attenuation values: Value(WithPadmix flag)\n");
for (i = 0; i < lo->rfatt_list.len; i++) {
fappend("%u(%d), ",
@@ -351,7 +624,7 @@ static ssize_t b43_debugfs_read(struct file *file, char __user *userbuf,
struct b43_dfs_file *dfile;
ssize_t uninitialized_var(ret);
char *buf;
- const size_t bufsize = 1024 * 128;
+ const size_t bufsize = 1024 * 16; /* 16 kiB buffer */
const size_t buforder = get_order(bufsize);
int err = 0;
@@ -380,8 +653,6 @@ static ssize_t b43_debugfs_read(struct file *file, char __user *userbuf,
err = -ENOMEM;
goto out_unlock;
}
- /* Sparse warns about the following memset, because it has a big
- * size value. That warning is bogus, so I will ignore it. --mb */
memset(buf, 0, bufsize);
if (dfops->take_irqlock) {
spin_lock_irq(&dev->wl->irq_lock);
@@ -482,9 +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);
@@ -523,6 +800,8 @@ static void b43_add_dynamic_debug(struct b43_wldev *dev)
add_dyn_dbg("debug_dmaverbose", B43_DBG_DMAVERBOSE, 0);
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
}
@@ -569,6 +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; \
@@ -581,9 +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);
@@ -605,9 +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);