| /* |
| Copyright (C) 2004 - 2008 rt2x00 SourceForge Project |
| <http://rt2x00.serialmonkey.com> |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the |
| Free Software Foundation, Inc., |
| 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| */ |
| |
| /* |
| Module: rt2x00pci |
| Abstract: Data structures for the rt2x00pci module. |
| */ |
| |
| #ifndef RT2X00PCI_H |
| #define RT2X00PCI_H |
| |
| #include <linux/io.h> |
| |
| /* |
| * This variable should be used with the |
| * pci_driver structure initialization. |
| */ |
| #define PCI_DEVICE_DATA(__ops) .driver_data = (kernel_ulong_t)(__ops) |
| |
| /* |
| * Register defines. |
| * Some registers require multiple attempts before success, |
| * in those cases REGISTER_BUSY_COUNT attempts should be |
| * taken with a REGISTER_BUSY_DELAY interval. |
| */ |
| #define REGISTER_BUSY_COUNT 5 |
| #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, |
| u32 *value) |
| { |
| *value = readl(rt2x00dev->csr.base + offset); |
| } |
| |
| static inline void |
| rt2x00pci_register_multiread(struct rt2x00_dev *rt2x00dev, |
| const unsigned long 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, |
| u32 value) |
| { |
| writel(value, rt2x00dev->csr.base + offset); |
| } |
| |
| static inline void |
| rt2x00pci_register_multiwrite(struct rt2x00_dev *rt2x00dev, |
| const unsigned long offset, |
| void *value, const u16 length) |
| { |
| memcpy_toio(rt2x00dev->csr.base + offset, value, length); |
| } |
| |
| /** |
| * rt2x00pci_write_tx_data - Initialize data for TX operation |
| * @entry: The entry where the frame is located |
| * |
| * This function will initialize the DMA and skb descriptor |
| * to prepare the entry for the actual TX operation. |
| */ |
| int rt2x00pci_write_tx_data(struct queue_entry *entry); |
| |
| /** |
| * struct queue_entry_priv_pci: Per entry PCI specific information |
| * |
| * @desc: Pointer to device descriptor |
| * @desc_dma: DMA pointer to &desc. |
| * @data: Pointer to device's entry memory. |
| * @data_dma: DMA pointer to &data. |
| */ |
| struct queue_entry_priv_pci { |
| __le32 *desc; |
| dma_addr_t desc_dma; |
| |
| void *data; |
| dma_addr_t data_dma; |
| }; |
| |
| /** |
| * rt2x00pci_rxdone - Handle RX done events |
| * @rt2x00dev: Device pointer, see &struct rt2x00_dev. |
| */ |
| void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev); |
| |
| /** |
| * rt2x00pci_txdone - Handle TX done events |
| * @rt2x00dev: Device pointer, see &struct rt2x00_dev. |
| * @entry: Entry which has completed the transmission of a frame. |
| * @desc: TX done descriptor |
| */ |
| void rt2x00pci_txdone(struct rt2x00_dev *rt2x00dev, struct queue_entry *entry, |
| struct txdone_entry_desc *desc); |
| |
| /* |
| * Device initialization handlers. |
| */ |
| int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev); |
| void rt2x00pci_uninitialize(struct rt2x00_dev *rt2x00dev); |
| |
| /* |
| * PCI driver handlers. |
| */ |
| int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id); |
| void rt2x00pci_remove(struct pci_dev *pci_dev); |
| #ifdef CONFIG_PM |
| int rt2x00pci_suspend(struct pci_dev *pci_dev, pm_message_t state); |
| int rt2x00pci_resume(struct pci_dev *pci_dev); |
| #else |
| #define rt2x00pci_suspend NULL |
| #define rt2x00pci_resume NULL |
| #endif /* CONFIG_PM */ |
| |
| #endif /* RT2X00PCI_H */ |