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path: root/drivers/net/wireless/iwlwifi/iwl-io.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-io.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-io.c192
1 files changed, 98 insertions, 94 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-io.c b/drivers/net/wireless/iwlwifi/iwl-io.c
index aa4a9067445..3ffa8e62b85 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.c
+++ b/drivers/net/wireless/iwlwifi/iwl-io.c
@@ -25,46 +25,50 @@
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
+#include <linux/delay.h>
+#include <linux/device.h>
#include "iwl-io.h"
+#include"iwl-csr.h"
+#include "iwl-debug.h"
#define IWL_POLL_INTERVAL 10 /* microseconds */
-static inline void __iwl_set_bit(struct iwl_priv *priv, u32 reg, u32 mask)
+static inline void __iwl_set_bit(struct iwl_bus *bus, u32 reg, u32 mask)
{
- iwl_write32(priv, reg, iwl_read32(priv, reg) | mask);
+ iwl_write32(bus, reg, iwl_read32(bus, reg) | mask);
}
-static inline void __iwl_clear_bit(struct iwl_priv *priv, u32 reg, u32 mask)
+static inline void __iwl_clear_bit(struct iwl_bus *bus, u32 reg, u32 mask)
{
- iwl_write32(priv, reg, iwl_read32(priv, reg) & ~mask);
+ iwl_write32(bus, reg, iwl_read32(bus, reg) & ~mask);
}
-void iwl_set_bit(struct iwl_priv *priv, u32 reg, u32 mask)
+void iwl_set_bit(struct iwl_bus *bus, u32 reg, u32 mask)
{
unsigned long flags;
- spin_lock_irqsave(&priv->reg_lock, flags);
- __iwl_set_bit(priv, reg, mask);
- spin_unlock_irqrestore(&priv->reg_lock, flags);
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ __iwl_set_bit(bus, reg, mask);
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
}
-void iwl_clear_bit(struct iwl_priv *priv, u32 reg, u32 mask)
+void iwl_clear_bit(struct iwl_bus *bus, u32 reg, u32 mask)
{
unsigned long flags;
- spin_lock_irqsave(&priv->reg_lock, flags);
- __iwl_clear_bit(priv, reg, mask);
- spin_unlock_irqrestore(&priv->reg_lock, flags);
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ __iwl_clear_bit(bus, reg, mask);
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
}
-int iwl_poll_bit(struct iwl_priv *priv, u32 addr,
+int iwl_poll_bit(struct iwl_bus *bus, u32 addr,
u32 bits, u32 mask, int timeout)
{
int t = 0;
do {
- if ((iwl_read32(priv, addr) & mask) == (bits & mask))
+ if ((iwl_read32(bus, addr) & mask) == (bits & mask))
return t;
udelay(IWL_POLL_INTERVAL);
t += IWL_POLL_INTERVAL;
@@ -73,14 +77,14 @@ int iwl_poll_bit(struct iwl_priv *priv, u32 addr,
return -ETIMEDOUT;
}
-int iwl_grab_nic_access_silent(struct iwl_priv *priv)
+int iwl_grab_nic_access_silent(struct iwl_bus *bus)
{
int ret;
- lockdep_assert_held(&priv->reg_lock);
+ lockdep_assert_held(&bus->reg_lock);
/* this bit wakes up the NIC */
- __iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ __iwl_set_bit(bus, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
/*
* These bits say the device is running, and should keep running for
@@ -101,70 +105,70 @@ int iwl_grab_nic_access_silent(struct iwl_priv *priv)
* 5000 series and later (including 1000 series) have non-volatile SRAM,
* and do not save/restore SRAM when power cycling.
*/
- ret = iwl_poll_bit(priv, CSR_GP_CNTRL,
+ ret = iwl_poll_bit(bus, 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), 15000);
if (ret < 0) {
- iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_FORCE_NMI);
+ iwl_write32(bus, CSR_RESET, CSR_RESET_REG_FLAG_FORCE_NMI);
return -EIO;
}
return 0;
}
-int iwl_grab_nic_access(struct iwl_priv *priv)
+int iwl_grab_nic_access(struct iwl_bus *bus)
{
- int ret = iwl_grab_nic_access_silent(priv);
+ int ret = iwl_grab_nic_access_silent(bus);
if (ret) {
- u32 val = iwl_read32(priv, CSR_GP_CNTRL);
- IWL_ERR(priv,
+ u32 val = iwl_read32(bus, CSR_GP_CNTRL);
+ IWL_ERR(bus,
"MAC is in deep sleep!. CSR_GP_CNTRL = 0x%08X\n", val);
}
return ret;
}
-void iwl_release_nic_access(struct iwl_priv *priv)
+void iwl_release_nic_access(struct iwl_bus *bus)
{
- lockdep_assert_held(&priv->reg_lock);
- __iwl_clear_bit(priv, CSR_GP_CNTRL,
+ lockdep_assert_held(&bus->reg_lock);
+ __iwl_clear_bit(bus, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
}
-u32 iwl_read_direct32(struct iwl_priv *priv, u32 reg)
+u32 iwl_read_direct32(struct iwl_bus *bus, u32 reg)
{
u32 value;
unsigned long flags;
- spin_lock_irqsave(&priv->reg_lock, flags);
- iwl_grab_nic_access(priv);
- value = iwl_read32(priv, reg);
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, flags);
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ iwl_grab_nic_access(bus);
+ value = iwl_read32(bus(bus), reg);
+ iwl_release_nic_access(bus);
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
return value;
}
-void iwl_write_direct32(struct iwl_priv *priv, u32 reg, u32 value)
+void iwl_write_direct32(struct iwl_bus *bus, u32 reg, u32 value)
{
unsigned long flags;
- spin_lock_irqsave(&priv->reg_lock, flags);
- if (!iwl_grab_nic_access(priv)) {
- iwl_write32(priv, reg, value);
- iwl_release_nic_access(priv);
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ if (!iwl_grab_nic_access(bus)) {
+ iwl_write32(bus, reg, value);
+ iwl_release_nic_access(bus);
}
- spin_unlock_irqrestore(&priv->reg_lock, flags);
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
}
-int iwl_poll_direct_bit(struct iwl_priv *priv, u32 addr, u32 mask,
+int iwl_poll_direct_bit(struct iwl_bus *bus, u32 addr, u32 mask,
int timeout)
{
int t = 0;
do {
- if ((iwl_read_direct32(priv, addr) & mask) == mask)
+ if ((iwl_read_direct32(bus, addr) & mask) == mask)
return t;
udelay(IWL_POLL_INTERVAL);
t += IWL_POLL_INTERVAL;
@@ -173,122 +177,122 @@ int iwl_poll_direct_bit(struct iwl_priv *priv, u32 addr, u32 mask,
return -ETIMEDOUT;
}
-static inline u32 __iwl_read_prph(struct iwl_priv *priv, u32 reg)
+static inline u32 __iwl_read_prph(struct iwl_bus *bus, u32 reg)
{
- iwl_write32(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
+ iwl_write32(bus, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
rmb();
- return iwl_read32(priv, HBUS_TARG_PRPH_RDAT);
+ return iwl_read32(bus, HBUS_TARG_PRPH_RDAT);
}
-static inline void __iwl_write_prph(struct iwl_priv *priv, u32 addr, u32 val)
+static inline void __iwl_write_prph(struct iwl_bus *bus, u32 addr, u32 val)
{
- iwl_write32(priv, HBUS_TARG_PRPH_WADDR,
+ iwl_write32(bus, HBUS_TARG_PRPH_WADDR,
((addr & 0x0000FFFF) | (3 << 24)));
wmb();
- iwl_write32(priv, HBUS_TARG_PRPH_WDAT, val);
+ iwl_write32(bus, HBUS_TARG_PRPH_WDAT, val);
}
-u32 iwl_read_prph(struct iwl_priv *priv, u32 reg)
+u32 iwl_read_prph(struct iwl_bus *bus, u32 reg)
{
unsigned long flags;
u32 val;
- spin_lock_irqsave(&priv->reg_lock, flags);
- iwl_grab_nic_access(priv);
- val = __iwl_read_prph(priv, reg);
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, flags);
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ iwl_grab_nic_access(bus);
+ val = __iwl_read_prph(bus, reg);
+ iwl_release_nic_access(bus);
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
return val;
}
-void iwl_write_prph(struct iwl_priv *priv, u32 addr, u32 val)
+void iwl_write_prph(struct iwl_bus *bus, u32 addr, u32 val)
{
unsigned long flags;
- spin_lock_irqsave(&priv->reg_lock, flags);
- if (!iwl_grab_nic_access(priv)) {
- __iwl_write_prph(priv, addr, val);
- iwl_release_nic_access(priv);
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ if (!iwl_grab_nic_access(bus)) {
+ __iwl_write_prph(bus, addr, val);
+ iwl_release_nic_access(bus);
}
- spin_unlock_irqrestore(&priv->reg_lock, flags);
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
}
-void iwl_set_bits_prph(struct iwl_priv *priv, u32 reg, u32 mask)
+void iwl_set_bits_prph(struct iwl_bus *bus, u32 reg, u32 mask)
{
unsigned long flags;
- spin_lock_irqsave(&priv->reg_lock, flags);
- iwl_grab_nic_access(priv);
- __iwl_write_prph(priv, reg, __iwl_read_prph(priv, reg) | mask);
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, flags);
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ iwl_grab_nic_access(bus);
+ __iwl_write_prph(bus, reg, __iwl_read_prph(bus, reg) | mask);
+ iwl_release_nic_access(bus);
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
}
-void iwl_set_bits_mask_prph(struct iwl_priv *priv, u32 reg,
+void iwl_set_bits_mask_prph(struct iwl_bus *bus, u32 reg,
u32 bits, u32 mask)
{
unsigned long flags;
- spin_lock_irqsave(&priv->reg_lock, flags);
- iwl_grab_nic_access(priv);
- __iwl_write_prph(priv, reg,
- (__iwl_read_prph(priv, reg) & mask) | bits);
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, flags);
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ iwl_grab_nic_access(bus);
+ __iwl_write_prph(bus, reg,
+ (__iwl_read_prph(bus, reg) & mask) | bits);
+ iwl_release_nic_access(bus);
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
}
-void iwl_clear_bits_prph(struct iwl_priv *priv, u32 reg, u32 mask)
+void iwl_clear_bits_prph(struct iwl_bus *bus, u32 reg, u32 mask)
{
unsigned long flags;
u32 val;
- spin_lock_irqsave(&priv->reg_lock, flags);
- iwl_grab_nic_access(priv);
- val = __iwl_read_prph(priv, reg);
- __iwl_write_prph(priv, reg, (val & ~mask));
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, flags);
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ iwl_grab_nic_access(bus);
+ val = __iwl_read_prph(bus, reg);
+ __iwl_write_prph(bus, reg, (val & ~mask));
+ iwl_release_nic_access(bus);
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
}
-void _iwl_read_targ_mem_words(struct iwl_priv *priv, u32 addr,
+void _iwl_read_targ_mem_words(struct iwl_bus *bus, u32 addr,
void *buf, int words)
{
unsigned long flags;
int offs;
u32 *vals = buf;
- spin_lock_irqsave(&priv->reg_lock, flags);
- iwl_grab_nic_access(priv);
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ iwl_grab_nic_access(bus);
- iwl_write32(priv, HBUS_TARG_MEM_RADDR, addr);
+ iwl_write32(bus, HBUS_TARG_MEM_RADDR, addr);
rmb();
for (offs = 0; offs < words; offs++)
- vals[offs] = iwl_read32(priv, HBUS_TARG_MEM_RDAT);
+ vals[offs] = iwl_read32(bus, HBUS_TARG_MEM_RDAT);
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, flags);
+ iwl_release_nic_access(bus);
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
}
-u32 iwl_read_targ_mem(struct iwl_priv *priv, u32 addr)
+u32 iwl_read_targ_mem(struct iwl_bus *bus, u32 addr)
{
u32 value;
- _iwl_read_targ_mem_words(priv, addr, &value, 1);
+ _iwl_read_targ_mem_words(bus, addr, &value, 1);
return value;
}
-void iwl_write_targ_mem(struct iwl_priv *priv, u32 addr, u32 val)
+void iwl_write_targ_mem(struct iwl_bus *bus, u32 addr, u32 val)
{
unsigned long flags;
- spin_lock_irqsave(&priv->reg_lock, flags);
- if (!iwl_grab_nic_access(priv)) {
- iwl_write32(priv, HBUS_TARG_MEM_WADDR, addr);
+ spin_lock_irqsave(&bus->reg_lock, flags);
+ if (!iwl_grab_nic_access(bus)) {
+ iwl_write32(bus, HBUS_TARG_MEM_WADDR, addr);
wmb();
- iwl_write32(priv, HBUS_TARG_MEM_WDAT, val);
- iwl_release_nic_access(priv);
+ iwl_write32(bus, HBUS_TARG_MEM_WDAT, val);
+ iwl_release_nic_access(bus);
}
- spin_unlock_irqrestore(&priv->reg_lock, flags);
+ spin_unlock_irqrestore(&bus->reg_lock, flags);
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-23 19:38:28 +0000