diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-11 09:33:18 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-11 09:33:18 -0700 |
commit | 4dd9ec4946b4651a295d3bc8df9c15ac692a8f4e (patch) | |
tree | afb300c752de7175bb2df4722d5c857e070c75d9 /drivers/net/sfc/spi.h | |
parent | 86ed5a93b8b56e4e0877b914af0e10883a196384 (diff) | |
parent | 6861ff35ec5b60fafaf8651754c9a75142bfa9a4 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1075 commits)
myri10ge: update driver version number to 1.4.3-1.369
r8169: add shutdown handler
r8169: preliminary 8168d support
r8169: support additional 8168cp chipset
r8169: change default behavior for mildly identified 8168c chipsets
r8169: add a new 8168cp flavor
r8169: add a new 8168c flavor (bis)
r8169: add a new 8168c flavor
r8169: sync existing 8168 device hardware start sequences with vendor driver
r8169: 8168b Tx performance tweak
r8169: make room for more specific 8168 hardware start procedure
r8169: shuffle some registers handling around (8168 operation only)
r8169: new phy init parameters for the 8168b
r8169: update phy init parameters
r8169: wake up the PHY of the 8168
af_key: fix SADB_X_SPDDELETE response
ath9k: Fix return code when ath9k_hw_setpower() fails on reset
ath9k: remove nasty FAIL macro from ath9k_hw_reset()
gre: minor cleanups in netlink interface
gre: fix copy and paste error
...
Diffstat (limited to 'drivers/net/sfc/spi.h')
-rw-r--r-- | drivers/net/sfc/spi.h | 89 |
1 files changed, 42 insertions, 47 deletions
diff --git a/drivers/net/sfc/spi.h b/drivers/net/sfc/spi.h index 34412f3d41c9..feef61942377 100644 --- a/drivers/net/sfc/spi.h +++ b/drivers/net/sfc/spi.h @@ -19,53 +19,48 @@ * *************************************************************************/ -/* - * Commands common to all known devices. - * +#define SPI_WRSR 0x01 /* Write status register */ +#define SPI_WRITE 0x02 /* Write data to memory array */ +#define SPI_READ 0x03 /* Read data from memory array */ +#define SPI_WRDI 0x04 /* Reset write enable latch */ +#define SPI_RDSR 0x05 /* Read status register */ +#define SPI_WREN 0x06 /* Set write enable latch */ + +#define SPI_STATUS_WPEN 0x80 /* Write-protect pin enabled */ +#define SPI_STATUS_BP2 0x10 /* Block protection bit 2 */ +#define SPI_STATUS_BP1 0x08 /* Block protection bit 1 */ +#define SPI_STATUS_BP0 0x04 /* Block protection bit 0 */ +#define SPI_STATUS_WEN 0x02 /* State of the write enable latch */ +#define SPI_STATUS_NRDY 0x01 /* Device busy flag */ + +/** + * struct efx_spi_device - an Efx SPI (Serial Peripheral Interface) device + * @efx: The Efx controller that owns this device + * @device_id: Controller's id for the device + * @size: Size (in bytes) + * @addr_len: Number of address bytes in read/write commands + * @munge_address: Flag whether addresses should be munged. + * Some devices with 9-bit addresses (e.g. AT25040A EEPROM) + * use bit 3 of the command byte as address bit A8, rather + * than having a two-byte address. If this flag is set, then + * commands should be munged in this way. + * @block_size: Write block size (in bytes). + * Write commands are limited to blocks with this size and alignment. + * @read: Read function for the device + * @write: Write function for the device */ - -/* Write status register */ -#define SPI_WRSR 0x01 - -/* Write data to memory array */ -#define SPI_WRITE 0x02 - -/* Read data from memory array */ -#define SPI_READ 0x03 - -/* Reset write enable latch */ -#define SPI_WRDI 0x04 - -/* Read status register */ -#define SPI_RDSR 0x05 - -/* Set write enable latch */ -#define SPI_WREN 0x06 - -/* SST: Enable write to status register */ -#define SPI_SST_EWSR 0x50 - -/* - * Status register bits. Not all bits are supported on all devices. - * - */ - -/* Write-protect pin enabled */ -#define SPI_STATUS_WPEN 0x80 - -/* Block protection bit 2 */ -#define SPI_STATUS_BP2 0x10 - -/* Block protection bit 1 */ -#define SPI_STATUS_BP1 0x08 - -/* Block protection bit 0 */ -#define SPI_STATUS_BP0 0x04 - -/* State of the write enable latch */ -#define SPI_STATUS_WEN 0x02 - -/* Device busy flag */ -#define SPI_STATUS_NRDY 0x01 +struct efx_spi_device { + struct efx_nic *efx; + int device_id; + unsigned int size; + unsigned int addr_len; + unsigned int munge_address:1; + unsigned int block_size; +}; + +int falcon_spi_read(const struct efx_spi_device *spi, loff_t start, + size_t len, size_t *retlen, u8 *buffer); +int falcon_spi_write(const struct efx_spi_device *spi, loff_t start, + size_t len, size_t *retlen, const u8 *buffer); #endif /* EFX_SPI_H */ |