diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/bmi.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/bmi.c | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath10k/bmi.c b/drivers/net/wireless/ath/ath10k/bmi.c index 95dc4be82e5c..ea908107581d 100644 --- a/drivers/net/wireless/ath/ath10k/bmi.c +++ b/drivers/net/wireless/ath/ath10k/bmi.c @@ -346,6 +346,52 @@ int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 param, u32 *result) return 0; } +static int ath10k_bmi_lz_data_large(struct ath10k *ar, const void *buffer, u32 length) +{ + struct bmi_cmd *cmd; + u32 hdrlen = sizeof(cmd->id) + sizeof(cmd->lz_data); + u32 txlen; + int ret; + size_t buf_len; + + ath10k_dbg(ar, ATH10K_DBG_BMI, "large bmi lz data buffer 0x%pK length %d\n", + buffer, length); + + if (ar->bmi.done_sent) { + ath10k_warn(ar, "command disallowed\n"); + return -EBUSY; + } + + buf_len = sizeof(*cmd) + BMI_MAX_LARGE_DATA_SIZE - BMI_MAX_DATA_SIZE; + cmd = kzalloc(buf_len, GFP_KERNEL); + if (!cmd) + return -ENOMEM; + + while (length) { + txlen = min(length, BMI_MAX_LARGE_DATA_SIZE - hdrlen); + + WARN_ON_ONCE(txlen & 3); + + cmd->id = __cpu_to_le32(BMI_LZ_DATA); + cmd->lz_data.len = __cpu_to_le32(txlen); + memcpy(cmd->lz_data.payload, buffer, txlen); + + ret = ath10k_hif_exchange_bmi_msg(ar, cmd, hdrlen + txlen, + NULL, NULL); + if (ret) { + ath10k_warn(ar, "unable to write to the device\n"); + return ret; + } + + buffer += txlen; + length -= txlen; + } + + kfree(cmd); + + return 0; +} + int ath10k_bmi_lz_data(struct ath10k *ar, const void *buffer, u32 length) { struct bmi_cmd cmd; @@ -430,7 +476,11 @@ int ath10k_bmi_fast_download(struct ath10k *ar, if (trailer_len > 0) memcpy(trailer, buffer + head_len, trailer_len); - ret = ath10k_bmi_lz_data(ar, buffer, head_len); + if (ar->hw_params.bmi_large_size_download) + ret = ath10k_bmi_lz_data_large(ar, buffer, head_len); + else + ret = ath10k_bmi_lz_data(ar, buffer, head_len); + if (ret) return ret; |