diff options
author | Yanbo Li <yanbol@qti.qualcomm.com> | 2014-11-25 13:24:33 +0300 |
---|---|---|
committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2014-11-26 09:39:55 +0300 |
commit | 077a380447160d94031c51e863ca4c53d2c74730 (patch) | |
tree | 625fe0b0deb23be2086b9c4f5f2ecf84b4939b5f /drivers/net/wireless/ath/ath10k/hif.h | |
parent | 5d011f5c1f93a9ef6955874c3607e36b32713015 (diff) | |
download | linux-077a380447160d94031c51e863ca4c53d2c74730.tar.xz |
ath10k: add register access debugfs interface
Debugfs files reg_addr and reg_val are used for reading and writing to the
firmware (target) registers. reg_addr contains the address to be accessed,
which also needs to be set first, and reg_value is when used for reading and
writing the actual value in ASCII.
To read a value from the firmware register 0x100000:
# echo 0x100000 > reg_addr
# cat reg_value
0x00100000:0x000002d3
To write value 0x2400 to address 0x100000:
# echo 0x100000 > reg_addr
# echo 0x2400 > reg_value
#
Signed-off-by: Yanbo Li <yanbol@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/hif.h')
-rw-r--r-- | drivers/net/wireless/ath/ath10k/hif.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/hif.h b/drivers/net/wireless/ath/ath10k/hif.h index 30301f5b6051..bad071906540 100644 --- a/drivers/net/wireless/ath/ath10k/hif.h +++ b/drivers/net/wireless/ath/ath10k/hif.h @@ -20,6 +20,7 @@ #include <linux/kernel.h> #include "core.h" +#include "debug.h" struct ath10k_hif_sg_item { u16 transfer_id; @@ -84,6 +85,10 @@ struct ath10k_hif_ops { u16 (*get_free_queue_number)(struct ath10k *ar, u8 pipe_id); + u32 (*read32)(struct ath10k *ar, u32 address); + + void (*write32)(struct ath10k *ar, u32 address, u32 value); + /* Power up the device and enter BMI transfer mode for FW download */ int (*power_up)(struct ath10k *ar); @@ -187,4 +192,25 @@ static inline int ath10k_hif_resume(struct ath10k *ar) return ar->hif.ops->resume(ar); } +static inline u32 ath10k_hif_read32(struct ath10k *ar, u32 address) +{ + if (!ar->hif.ops->read32) { + ath10k_warn(ar, "hif read32 not supported\n"); + return 0xdeaddead; + } + + return ar->hif.ops->read32(ar, address); +} + +static inline void ath10k_hif_write32(struct ath10k *ar, + u32 address, u32 data) +{ + if (!ar->hif.ops->write32) { + ath10k_warn(ar, "hif write32 not supported\n"); + return; + } + + ar->hif.ops->write32(ar, address, data); +} + #endif /* _HIF_H_ */ |