diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00pci.h')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00pci.h | 37 |
1 files changed, 22 insertions, 15 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.h b/drivers/net/wireless/rt2x00/rt2x00pci.h index 80bf97c03e2d..9c0a4d77bc1b 100644 --- a/drivers/net/wireless/rt2x00/rt2x00pci.h +++ b/drivers/net/wireless/rt2x00/rt2x00pci.h @@ -44,21 +44,10 @@ #define REGISTER_BUSY_DELAY 100 /* - * Descriptor availability flags. - * All PCI device descriptors have these 2 flags - * with the exact same definition. - * By storing them here we can use them inside rt2x00pci - * for some simple entry availability checking. - */ -#define TXD_ENTRY_OWNER_NIC FIELD32(0x00000001) -#define TXD_ENTRY_VALID FIELD32(0x00000002) -#define RXD_ENTRY_OWNER_NIC FIELD32(0x00000001) - -/* * Register access. */ static inline void rt2x00pci_register_read(struct rt2x00_dev *rt2x00dev, - const unsigned long offset, + const unsigned int offset, u32 *value) { *value = readl(rt2x00dev->csr.base + offset); @@ -66,14 +55,14 @@ static inline void rt2x00pci_register_read(struct rt2x00_dev *rt2x00dev, static inline void rt2x00pci_register_multiread(struct rt2x00_dev *rt2x00dev, - const unsigned long offset, + const unsigned int offset, void *value, const u16 length) { memcpy_fromio(value, rt2x00dev->csr.base + offset, length); } static inline void rt2x00pci_register_write(struct rt2x00_dev *rt2x00dev, - const unsigned long offset, + const unsigned int offset, u32 value) { writel(value, rt2x00dev->csr.base + offset); @@ -81,13 +70,31 @@ static inline void rt2x00pci_register_write(struct rt2x00_dev *rt2x00dev, static inline void rt2x00pci_register_multiwrite(struct rt2x00_dev *rt2x00dev, - const unsigned long offset, + const unsigned int offset, const void *value, const u16 length) { memcpy_toio(rt2x00dev->csr.base + offset, value, length); } /** + * rt2x00pci_regbusy_read - Read from register with busy check + * @rt2x00dev: Device pointer, see &struct rt2x00_dev. + * @offset: Register offset + * @field: Field to check if register is busy + * @reg: Pointer to where register contents should be stored + * + * This function will read the given register, and checks if the + * register is busy. If it is, it will sleep for a couple of + * microseconds before reading the register again. If the register + * is not read after a certain timeout, this function will return + * FALSE. + */ +int rt2x00pci_regbusy_read(struct rt2x00_dev *rt2x00dev, + const unsigned int offset, + const struct rt2x00_field32 field, + u32 *reg); + +/** * rt2x00pci_write_tx_data - Initialize data for TX operation * @entry: The entry where the frame is located * |