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iwlwifi: the read / write register ops move to transport

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Most of the accesses to the registers are done from the transport layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
This commit is contained in:
Emmanuel Grumbach 2012-01-03 13:48:07 +02:00 committed by Wey-Yi Guy
parent a42a184458
commit 0390549571
5 changed files with 48 additions and 64 deletions
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21
drivers/net/wireless/iwlwifi/iwl-bus.h
View File

@ -124,18 +124,12 @@ struct iwl_bus;
* @apm_config: will be called during the config of the APM
* @get_hw_id_string: prints the hw_id in the provided buffer
* @get_hw_id: get hw_id in u32
* @write8: write a byte to register at offset ofs
* @write32: write a dword to register at offset ofs
* @wread32: read a dword at register at offset ofs
*/
struct iwl_bus_ops {
bool (*get_pm_support)(struct iwl_bus *bus);
void (*apm_config)(struct iwl_bus *bus);
void (*get_hw_id_string)(struct iwl_bus *bus, char buf[], int buf_len);
u32 (*get_hw_id)(struct iwl_bus *bus);
void (*write8)(struct iwl_bus *bus, u32 ofs, u8 val);
void (*write32)(struct iwl_bus *bus, u32 ofs, u32 val);
u32 (*read32)(struct iwl_bus *bus, u32 ofs);
};
/**
@ -183,21 +177,6 @@ static inline u32 bus_get_hw_id(struct iwl_bus *bus)
return bus->ops->get_hw_id(bus);
}
static inline void bus_write8(struct iwl_bus *bus, u32 ofs, u8 val)
{
bus->ops->write8(bus, ofs, val);
}
static inline void bus_write32(struct iwl_bus *bus, u32 ofs, u32 val)
{
bus->ops->write32(bus, ofs, val);
}
static inline u32 bus_read32(struct iwl_bus *bus, u32 ofs)
{
return bus->ops->read32(bus, ofs);
}
/*****************************************************
* Bus layer registration functions
******************************************************/

11
drivers/net/wireless/iwlwifi/iwl-io.h
View File

@ -31,23 +31,28 @@
#include "iwl-devtrace.h"
#include "iwl-shared.h"
/* TODO: remove when not needed any more */
#include "iwl-bus.h"
#include "iwl-trans.h"
static inline void iwl_write8(struct iwl_bus *bus, u32 ofs, u8 val)
{
/* TODO: get trans instead of bus */
trace_iwlwifi_dev_iowrite8(priv(bus), ofs, val);
bus_write8(bus, ofs, val);
iwl_trans_write8(trans(bus), ofs, val);
}
static inline void iwl_write32(struct iwl_bus *bus, u32 ofs, u32 val)
{
/* TODO: get trans instead of bus */
trace_iwlwifi_dev_iowrite32(priv(bus), ofs, val);
bus_write32(bus, ofs, val);
iwl_trans_write32(trans(bus), ofs, val);
}
static inline u32 iwl_read32(struct iwl_bus *bus, u32 ofs)
{
u32 val = bus_read32(bus, ofs);
/* TODO: get trans instead of bus */
u32 val = iwl_trans_read32(trans(bus), ofs);
trace_iwlwifi_dev_ioread32(priv(bus), ofs, val);
return val;
}

22
drivers/net/wireless/iwlwifi/iwl-pci.c
View File

@ -79,9 +79,6 @@
struct iwl_pci_bus {
/* basic pci-network driver stuff */
struct pci_dev *pci_dev;
/* pci hardware address support */
void __iomem *hw_base;
};
#define IWL_BUS_GET_PCI_BUS(_iwl_bus) \
@ -151,30 +148,11 @@ static u32 iwl_pci_get_hw_id(struct iwl_bus *bus)
return (pci_dev->device << 16) + pci_dev->subsystem_device;
}
static void iwl_pci_write8(struct iwl_bus *bus, u32 ofs, u8 val)
{
iowrite8(val, IWL_BUS_GET_PCI_BUS(bus)->hw_base + ofs);
}
static void iwl_pci_write32(struct iwl_bus *bus, u32 ofs, u32 val)
{
iowrite32(val, IWL_BUS_GET_PCI_BUS(bus)->hw_base + ofs);
}
static u32 iwl_pci_read32(struct iwl_bus *bus, u32 ofs)
{
u32 val = ioread32(IWL_BUS_GET_PCI_BUS(bus)->hw_base + ofs);
return val;
}
static const struct iwl_bus_ops bus_ops_pci = {
.get_pm_support = iwl_pci_is_pm_supported,
.apm_config = iwl_pci_apm_config,
.get_hw_id_string = iwl_pci_get_hw_id_string,
.get_hw_id = iwl_pci_get_hw_id,
.write8 = iwl_pci_write8,
.write32 = iwl_pci_write32,
.read32 = iwl_pci_read32,
};
#define IWL_PCI_DEVICE(dev, subdev, cfg) \

37
drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
View File

@ -1299,6 +1299,22 @@ static int iwl_trans_pcie_reclaim(struct iwl_trans *trans, int sta_id, int tid,
return 0;
}
static void iwl_trans_pcie_write8(struct iwl_trans *trans, u32 ofs, u8 val)
{
iowrite8(val, IWL_TRANS_GET_PCIE_TRANS(trans)->hw_base + ofs);
}
static void iwl_trans_pcie_write32(struct iwl_trans *trans, u32 ofs, u32 val)
{
iowrite32(val, IWL_TRANS_GET_PCIE_TRANS(trans)->hw_base + ofs);
}
static u32 iwl_trans_pcie_read32(struct iwl_trans *trans, u32 ofs)
{
u32 val = ioread32(IWL_TRANS_GET_PCIE_TRANS(trans)->hw_base + ofs);
return val;
}
static void iwl_trans_pcie_free(struct iwl_trans *trans)
{
struct iwl_trans_pcie *trans_pcie =
@ -1935,22 +1951,11 @@ const struct iwl_trans_ops trans_ops_pcie = {
.suspend = iwl_trans_pcie_suspend,
.resume = iwl_trans_pcie_resume,
#endif
.write8 = iwl_trans_pcie_write8,
.write32 = iwl_trans_pcie_write32,
.read32 = iwl_trans_pcie_read32,
};
/* TODO: remove this hack - will be possible when all the io{write/read} ops
* will be done through the transport
*/
struct iwl_pci_bus {
/* basic pci-network driver stuff */
struct pci_dev *pci_dev;
/* pci hardware address support */
void __iomem *hw_base;
};
#define IWL_BUS_GET_PCI_BUS(_iwl_bus) \
((struct iwl_pci_bus *) ((_iwl_bus)->bus_specific))
/* PCI registers */
#define PCI_CFG_RETRY_TIMEOUT 0x041
@ -1958,7 +1963,6 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd,
struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct iwl_pci_bus *iwl_pci_bus = IWL_BUS_GET_PCI_BUS(shrd->bus);
struct iwl_trans_pcie *trans_pcie;
struct iwl_trans *trans;
u16 pci_cmd;
@ -2018,9 +2022,6 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd,
goto out_pci_release_regions;
}
/* TODO: remove this hack */
iwl_pci_bus->hw_base = trans_pcie->hw_base;
dev_printk(KERN_INFO, &pdev->dev,
"pci_resource_len = 0x%08llx\n",
(unsigned long long) pci_resource_len(pdev, 0));

21
drivers/net/wireless/iwlwifi/iwl-trans.h
View File

@ -158,6 +158,9 @@ struct iwl_host_cmd {
* automatically deleted.
* @suspend: stop the device unless WoWLAN is configured
* @resume: resume activity of the device
* @write8: write a u8 to a register at offset ofs from the BAR
* @write32: write a u32 to a register at offset ofs from the BAR
* @read32: read a u32 register at offset ofs from the BAR
*/
struct iwl_trans_ops {
@ -201,6 +204,9 @@ struct iwl_trans_ops {
int (*suspend)(struct iwl_trans *trans);
int (*resume)(struct iwl_trans *trans);
#endif
void (*write8)(struct iwl_trans *trans, u32 ofs, u8 val);
void (*write32)(struct iwl_trans *trans, u32 ofs, u32 val);
u32 (*read32)(struct iwl_trans *trans, u32 ofs);
};
/* one for each uCode image (inst/data, boot/init/runtime) */
@ -382,6 +388,21 @@ static inline int iwl_trans_resume(struct iwl_trans *trans)
}
#endif
static inline void iwl_trans_write8(struct iwl_trans *trans, u32 ofs, u8 val)
{
trans->ops->write8(trans, ofs, val);
}
static inline void iwl_trans_write32(struct iwl_trans *trans, u32 ofs, u32 val)
{
trans->ops->write32(trans, ofs, val);
}
static inline u32 iwl_trans_read32(struct iwl_trans *trans, u32 ofs)
{
return trans->ops->read32(trans, ofs);
}
/*****************************************************
* Utils functions
******************************************************/