/******************************************************************************
*
- * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
+ * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project.
*
* file called LICENSE.
*
* Contact Information:
- * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
* _iwl_read32.)
*
* These declarations are *extremely* useful in quickly isolating code deltas
- * which result in misconfiguring of the hardware I/O. In combination with
+ * which result in misconfiguration of the hardware I/O. In combination with
* git-bisect and the IO debug level you can quickly determine the specific
* commit which breaks the IO sequence to the hardware.
*
#define iwl_read32(p, o) _iwl_read32(p, o)
#endif
+#define IWL_POLL_INTERVAL 10 /* microseconds */
static inline int _iwl_poll_bit(struct iwl_priv *priv, u32 addr,
u32 bits, u32 mask, int timeout)
{
- int i = 0;
+ int t = 0;
do {
if ((_iwl_read32(priv, addr) & mask) == (bits & mask))
- return i;
- mdelay(10);
- i += 10;
- } while (i < timeout);
+ return t;
+ udelay(IWL_POLL_INTERVAL);
+ t += IWL_POLL_INTERVAL;
+ } while (t < timeout);
return -ETIMEDOUT;
}
int ret = _iwl_poll_bit(priv, addr, bits, mask, timeout);
IWL_DEBUG_IO("poll_bit(0x%08X, 0x%08X, 0x%08X) - %s- %s %d\n",
addr, bits, mask,
- unlikely(ret == -ETIMEDOUT)?"timeout":"", f, l);
+ unlikely(ret == -ETIMEDOUT) ? "timeout" : "", f, l);
return ret;
}
#define iwl_poll_bit(priv, addr, bits, mask, timeout) \
ret = _iwl_poll_bit(priv, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN,
(CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY |
- CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 50);
+ CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 15000);
if (ret < 0) {
- IWL_ERROR("MAC is in deep sleep!\n");
+ IWL_ERR(priv, "MAC is in deep sleep!\n");
return -EIO;
}
struct iwl_priv *priv)
{
if (atomic_read(&priv->restrict_refcnt))
- IWL_ERROR("Grabbing access while already held %s %d.\n", f, l);
+ IWL_ERR(priv, "Grabbing access while already held %s %d.\n", f, l);
IWL_DEBUG_IO("grabbing nic access - %s %d\n", f, l);
return _iwl_grab_nic_access(priv);
struct iwl_priv *priv)
{
if (atomic_read(&priv->restrict_refcnt) <= 0)
- IWL_ERROR("Release unheld nic access at line %s %d.\n", f, l);
+ IWL_ERR(priv, "Release unheld nic access at line %s %d.\n", f, l);
IWL_DEBUG_IO("releasing nic access - %s %d\n", f, l);
_iwl_release_nic_access(priv);
{
u32 value = _iwl_read_direct32(priv, reg);
if (!atomic_read(&priv->restrict_refcnt))
- IWL_ERROR("Nic access not held from %s %d\n", f, l);
+ IWL_ERR(priv, "Nic access not held from %s %d\n", f, l);
IWL_DEBUG_IO("read_direct32(0x%4X) = 0x%08x - %s %d \n", reg, value,
f, l);
return value;
struct iwl_priv *priv, u32 reg, u32 value)
{
if (!atomic_read(&priv->restrict_refcnt))
- IWL_ERROR("Nic access not held from %s line %d\n", f, line);
+ IWL_ERR(priv, "Nic access not held from %s line %d\n", f, line);
_iwl_write_direct32(priv, reg, value);
}
#define iwl_write_direct32(priv, reg, value) \
}
}
-static inline int _iwl_poll_direct_bit(struct iwl_priv *priv,
- u32 addr, u32 mask, int timeout)
+static inline int _iwl_poll_direct_bit(struct iwl_priv *priv, u32 addr,
+ u32 mask, int timeout)
{
- int i = 0;
-
- do {
- if ((_iwl_read_direct32(priv, addr) & mask) == mask)
- return i;
- mdelay(10);
- i += 10;
- } while (i < timeout);
-
- return -ETIMEDOUT;
+ return _iwl_poll_bit(priv, addr, mask, mask, timeout);
}
#ifdef CONFIG_IWLWIFI_DEBUG
static inline u32 _iwl_read_prph(struct iwl_priv *priv, u32 reg)
{
_iwl_write_direct32(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
+ rmb();
return _iwl_read_direct32(priv, HBUS_TARG_PRPH_RDAT);
}
#ifdef CONFIG_IWLWIFI_DEBUG
struct iwl_priv *priv, u32 reg)
{
if (!atomic_read(&priv->restrict_refcnt))
- IWL_ERROR("Nic access not held from %s line %d\n", f, line);
+ IWL_ERR(priv, "Nic access not held from %s line %d\n", f, line);
return _iwl_read_prph(priv, reg);
}
{
_iwl_write_direct32(priv, HBUS_TARG_PRPH_WADDR,
((addr & 0x0000FFFF) | (3 << 24)));
+ wmb();
_iwl_write_direct32(priv, HBUS_TARG_PRPH_WDAT, val);
}
#ifdef CONFIG_IWLWIFI_DEBUG
struct iwl_priv *priv, u32 addr, u32 val)
{
if (!atomic_read(&priv->restrict_refcnt))
- IWL_ERROR("Nic access not held from %s line %d\n", f, line);
+ IWL_ERR(priv, "Nic access not held from %s line %d\n", f, line);
_iwl_write_prph(priv, addr, val);
}
u32 reg, u32 mask)
{
if (!atomic_read(&priv->restrict_refcnt))
- IWL_ERROR("Nic access not held from %s line %d\n", f, line);
+ IWL_ERR(priv, "Nic access not held from %s line %d\n", f, line);
_iwl_set_bits_prph(priv, reg, mask);
}
struct iwl_priv *priv, u32 reg, u32 bits, u32 mask)
{
if (!atomic_read(&priv->restrict_refcnt))
- IWL_ERROR("Nic access not held from %s line %d\n", f, line);
+ IWL_ERR(priv, "Nic access not held from %s line %d\n", f, line);
_iwl_set_bits_mask_prph(priv, reg, bits, mask);
}
#define iwl_set_bits_mask_prph(priv, reg, bits, mask) \
static inline u32 iwl_read_targ_mem(struct iwl_priv *priv, u32 addr)
{
iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, addr);
+ rmb();
return iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
}
static inline void iwl_write_targ_mem(struct iwl_priv *priv, u32 addr, u32 val)
{
iwl_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
+ wmb();
iwl_write_direct32(priv, HBUS_TARG_MEM_WDAT, val);
}
u32 len, u32 *values)
{
iwl_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
+ wmb();
for (; 0 < len; len -= sizeof(u32), values++)
iwl_write_direct32(priv, HBUS_TARG_MEM_WDAT, *values);
}
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