diff options
| author | Martin Blumenstingl <martin.blumenstingl@googlemail.com> | 2023-04-05 22:07:22 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2023-04-12 15:51:08 +0300 |
| commit | 65371a3f14e73979958aea0db1e3bb456a296149 (patch) | |
| tree | f93b04230f45364302c3afefe0633c878d67e3d7 /drivers/net/wireless/realtek/rtw88/mac.c | |
| parent | 6a92566088b1a37c1cf2c4b6b5fb733dc5bdc6a6 (diff) | |
wifi: rtw88: sdio: Add HCI implementation for SDIO based chipsets
Add a sub-driver for SDIO based chipsets which implements the following
functionality:
- register accessors for 8, 16 and 32 bits for all states of the card
(including usage of 4x 8 bit access for one 32 bit buffer if the card
is not fully powered on yet - or if it's fully powered on then 1x 32
bit access is used)
- checking whether there's space in the TX FIFO queue to transmit data
- transfers from the host to the device for actual network traffic,
reserved pages (for firmware download) and H2C (host-to-card)
transfers
- receiving data from the device
- deep power saving state
The transmit path is optimized so DMA-capable SDIO host controllers can
directly use the buffers provided because the buffer's physical
addresses are 8 byte aligned.
The receive path is prepared to support RX aggregation where the
chipset combines multiple MAC frames into one bigger buffer to reduce
SDIO transfer overhead.
Co-developed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230405200729.632435-3-martin.blumenstingl@googlemail.com
Diffstat (limited to 'drivers/net/wireless/realtek/rtw88/mac.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/mac.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/mac.c b/drivers/net/wireless/realtek/rtw88/mac.c index cfdfc8a2c836..2fcba43a6f72 100644 --- a/drivers/net/wireless/realtek/rtw88/mac.c +++ b/drivers/net/wireless/realtek/rtw88/mac.c @@ -7,6 +7,7 @@ #include "reg.h" #include "fw.h" #include "debug.h" +#include "sdio.h" void rtw_set_channel_mac(struct rtw_dev *rtwdev, u8 channel, u8 bw, u8 primary_ch_idx) |