diff options
| author | Jérôme Pouiller <jerome.pouiller@silabs.com> | 2019-09-19 14:25:37 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-04 10:28:16 +0200 |
| commit | 0096214a59a72b3c3c943e27bd03307324d3ce0f (patch) | |
| tree | 9fda1fc789777965584cb3369cf7651f02d3898d /drivers/staging/wfx/bus.h | |
| parent | a7a91ca5a23dbcc68f04d18ef7e765b1e4f64c7f (diff) | |
staging: wfx: add support for I/O access
Introduce bus level communication layer. At this level, 7 registers can
be addressed.
Notice that SPI driver is able to manage chip reset. SDIO mode relies
on an external driver (`mmc-pwrseq`) to reset chip.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20190919142527.31797-3-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/wfx/bus.h')
| -rw-r--r-- | drivers/staging/wfx/bus.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/staging/wfx/bus.h b/drivers/staging/wfx/bus.h index 8ce871a8a9ff..eb77abc09ec2 100644 --- a/drivers/staging/wfx/bus.h +++ b/drivers/staging/wfx/bus.h @@ -11,6 +11,23 @@ #include <linux/mmc/sdio_func.h> #include <linux/spi/spi.h> +#define WFX_REG_CONFIG 0x0 +#define WFX_REG_CONTROL 0x1 +#define WFX_REG_IN_OUT_QUEUE 0x2 +#define WFX_REG_AHB_DPORT 0x3 +#define WFX_REG_BASE_ADDR 0x4 +#define WFX_REG_SRAM_DPORT 0x5 +#define WFX_REG_SET_GEN_R_W 0x6 +#define WFX_REG_FRAME_OUT 0x7 + +struct hwbus_ops { + int (*copy_from_io)(void *bus_priv, unsigned int addr, void *dst, size_t count); + int (*copy_to_io)(void *bus_priv, unsigned int addr, const void *src, size_t count); + void (*lock)(void *bus_priv); + void (*unlock)(void *bus_priv); + size_t (*align_size)(void *bus_priv, size_t size); +}; + extern struct sdio_driver wfx_sdio_driver; extern struct spi_driver wfx_spi_driver; |