diff options
| author |   Russell Hu <rhu@qti.qualcomm.com> | 2018-01-16 11:43:47 +0200 |
|---|---|---|
| committer |   Kalle Valo <kvalo@codeaurora.org> | 2018-01-16 16:29:22 +0200 |
| commit | 7368160f0ab0b1c2c9d95fc52dca1e7ec62201a4 (patch) | |
| tree | 671fa35decb0394d7d4aaf104572791ed5595b40 /drivers/net/wireless/ath/ath9k/reg.h | |
| parent | Merge tag 'linux-can-next-for-4.16-20180105' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next (diff) | |
| download | linux-dev-7368160f0ab0b1c2c9d95fc52dca1e7ec62201a4.tar.xz linux-dev-7368160f0ab0b1c2c9d95fc52dca1e7ec62201a4.zip | |
ath9k: add MSI support
On new Intel platforms like ApolloLake, legacy interrupt mechanism
(INTx) is not supported, so WLAN modules are not working because
interrupts are missing, therefore this patch is to add MSI support to
ath9k. With module paremeter "use_msi=1", ath9k driver would try to
use MSI instead of INTx.
Signed-off-by: Russell Hu <rhu@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/reg.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/reg.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h index 80ff69f99229..653e79611830 100644 --- a/drivers/net/wireless/ath/ath9k/reg.h +++ b/drivers/net/wireless/ath/ath9k/reg.h @@ -146,6 +146,14 @@ #define AR_MACMISC_MISC_OBS_BUS_MSB_S 15 #define AR_MACMISC_MISC_OBS_BUS_1 1 +#define AR_INTCFG 0x005C +#define AR_INTCFG_MSI_RXOK 0x00000000 +#define AR_INTCFG_MSI_RXINTM 0x00000004 +#define AR_INTCFG_MSI_RXMINTR 0x00000006 +#define AR_INTCFG_MSI_TXOK 0x00000000 +#define AR_INTCFG_MSI_TXINTM 0x00000010 +#define AR_INTCFG_MSI_TXMINTR 0x00000018 + #define AR_DATABUF_SIZE 0x0060 #define AR_DATABUF_SIZE_MASK 0x00000FFF @@ -1256,6 +1264,13 @@ enum { #define AR_PCIE_MSI (AR_SREV_9340(ah) ? 0x40d8 : \ (AR_SREV_9300_20_OR_LATER(ah) ? 0x40a4 : 0x4094)) #define AR_PCIE_MSI_ENABLE 0x00000001 +#define AR_PCIE_MSI_HW_DBI_WR_EN 0x02000000 +#define AR_PCIE_MSI_HW_INT_PENDING_ADDR 0xFFA0C1FF /* bits 8..11: value must be 0x5060 */ +#define AR_PCIE_MSI_HW_INT_PENDING_ADDR_MSI_64 0xFFA0C9FF /* bits 8..11: value must be 0x5064 */ + +#define AR_INTR_PRIO_TX 0x00000001 +#define AR_INTR_PRIO_RXLP 0x00000002 +#define AR_INTR_PRIO_RXHP 0x00000004 #define AR_INTR_PRIO_SYNC_ENABLE (AR_SREV_9340(ah) ? 0x4088 : 0x40c4) #define AR_INTR_PRIO_ASYNC_MASK (AR_SREV_9340(ah) ? 0x408c : 0x40c8) |