From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- drivers/net/wireless/ath/ath10k/bmi.c | 518 ++++++++++++++++++++++++++++++++++ 1 file changed, 518 insertions(+) create mode 100644 drivers/net/wireless/ath/ath10k/bmi.c (limited to 'drivers/net/wireless/ath/ath10k/bmi.c') diff --git a/drivers/net/wireless/ath/ath10k/bmi.c b/drivers/net/wireless/ath/ath10k/bmi.c new file mode 100644 index 0000000000..af6546572d --- /dev/null +++ b/drivers/net/wireless/ath/ath10k/bmi.c @@ -0,0 +1,518 @@ +// SPDX-License-Identifier: ISC +/* + * Copyright (c) 2005-2011 Atheros Communications Inc. + * Copyright (c) 2011-2014,2016-2017 Qualcomm Atheros, Inc. + */ + +#include "bmi.h" +#include "hif.h" +#include "debug.h" +#include "htc.h" +#include "hw.h" + +void ath10k_bmi_start(struct ath10k *ar) +{ + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi start\n"); + + ar->bmi.done_sent = false; +} +EXPORT_SYMBOL(ath10k_bmi_start); + +int ath10k_bmi_done(struct ath10k *ar) +{ + struct bmi_cmd cmd; + u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.done); + int ret; + + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi done\n"); + + if (ar->bmi.done_sent) { + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi skipped\n"); + return 0; + } + + ar->bmi.done_sent = true; + cmd.id = __cpu_to_le32(BMI_DONE); + + ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, NULL, NULL); + if (ret) { + ath10k_warn(ar, "unable to write to the device: %d\n", ret); + return ret; + } + + return 0; +} + +int ath10k_bmi_get_target_info(struct ath10k *ar, + struct bmi_target_info *target_info) +{ + struct bmi_cmd cmd; + union bmi_resp resp; + u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.get_target_info); + u32 resplen = sizeof(resp.get_target_info); + int ret; + + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi get target info\n"); + + if (ar->bmi.done_sent) { + ath10k_warn(ar, "BMI Get Target Info Command disallowed\n"); + return -EBUSY; + } + + cmd.id = __cpu_to_le32(BMI_GET_TARGET_INFO); + + ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &resp, &resplen); + if (ret) { + ath10k_warn(ar, "unable to get target info from device\n"); + return ret; + } + + if (resplen < sizeof(resp.get_target_info)) { + ath10k_warn(ar, "invalid get_target_info response length (%d)\n", + resplen); + return -EIO; + } + + target_info->version = __le32_to_cpu(resp.get_target_info.version); + target_info->type = __le32_to_cpu(resp.get_target_info.type); + + return 0; +} + +#define TARGET_VERSION_SENTINAL 0xffffffffu + +int ath10k_bmi_get_target_info_sdio(struct ath10k *ar, + struct bmi_target_info *target_info) +{ + struct bmi_cmd cmd; + union bmi_resp resp; + u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.get_target_info); + u32 resplen, ver_len; + __le32 tmp; + int ret; + + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi get target info SDIO\n"); + + if (ar->bmi.done_sent) { + ath10k_warn(ar, "BMI Get Target Info Command disallowed\n"); + return -EBUSY; + } + + cmd.id = __cpu_to_le32(BMI_GET_TARGET_INFO); + + /* Step 1: Read 4 bytes of the target info and check if it is + * the special sentinel version word or the first word in the + * version response. + */ + resplen = sizeof(u32); + ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &tmp, &resplen); + if (ret) { + ath10k_warn(ar, "unable to read from device\n"); + return ret; + } + + /* Some SDIO boards have a special sentinel byte before the real + * version response. + */ + if (__le32_to_cpu(tmp) == TARGET_VERSION_SENTINAL) { + /* Step 1b: Read the version length */ + resplen = sizeof(u32); + ret = ath10k_hif_exchange_bmi_msg(ar, NULL, 0, &tmp, + &resplen); + if (ret) { + ath10k_warn(ar, "unable to read from device\n"); + return ret; + } + } + + ver_len = __le32_to_cpu(tmp); + + /* Step 2: Check the target info length */ + if (ver_len != sizeof(resp.get_target_info)) { + ath10k_warn(ar, "Unexpected target info len: %u. Expected: %zu\n", + ver_len, sizeof(resp.get_target_info)); + return -EINVAL; + } + + /* Step 3: Read the rest of the version response */ + resplen = sizeof(resp.get_target_info) - sizeof(u32); + ret = ath10k_hif_exchange_bmi_msg(ar, NULL, 0, + &resp.get_target_info.version, + &resplen); + if (ret) { + ath10k_warn(ar, "unable to read from device\n"); + return ret; + } + + target_info->version = __le32_to_cpu(resp.get_target_info.version); + target_info->type = __le32_to_cpu(resp.get_target_info.type); + + return 0; +} + +int ath10k_bmi_read_memory(struct ath10k *ar, + u32 address, void *buffer, u32 length) +{ + struct bmi_cmd cmd; + union bmi_resp resp; + u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.read_mem); + u32 rxlen; + int ret; + + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi read address 0x%x length %d\n", + address, length); + + if (ar->bmi.done_sent) { + ath10k_warn(ar, "command disallowed\n"); + return -EBUSY; + } + + while (length) { + rxlen = min_t(u32, length, BMI_MAX_DATA_SIZE); + + cmd.id = __cpu_to_le32(BMI_READ_MEMORY); + cmd.read_mem.addr = __cpu_to_le32(address); + cmd.read_mem.len = __cpu_to_le32(rxlen); + + ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, + &resp, &rxlen); + if (ret) { + ath10k_warn(ar, "unable to read from the device (%d)\n", + ret); + return ret; + } + + memcpy(buffer, resp.read_mem.payload, rxlen); + address += rxlen; + buffer += rxlen; + length -= rxlen; + } + + return 0; +} +EXPORT_SYMBOL(ath10k_bmi_read_memory); + +int ath10k_bmi_write_soc_reg(struct ath10k *ar, u32 address, u32 reg_val) +{ + struct bmi_cmd cmd; + u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.write_soc_reg); + int ret; + + ath10k_dbg(ar, ATH10K_DBG_BMI, + "bmi write soc register 0x%08x val 0x%08x\n", + address, reg_val); + + if (ar->bmi.done_sent) { + ath10k_warn(ar, "bmi write soc register command in progress\n"); + return -EBUSY; + } + + cmd.id = __cpu_to_le32(BMI_WRITE_SOC_REGISTER); + cmd.write_soc_reg.addr = __cpu_to_le32(address); + cmd.write_soc_reg.value = __cpu_to_le32(reg_val); + + ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, NULL, NULL); + if (ret) { + ath10k_warn(ar, "Unable to write soc register to device: %d\n", + ret); + return ret; + } + + return 0; +} + +int ath10k_bmi_read_soc_reg(struct ath10k *ar, u32 address, u32 *reg_val) +{ + struct bmi_cmd cmd; + union bmi_resp resp; + u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.read_soc_reg); + u32 resplen = sizeof(resp.read_soc_reg); + int ret; + + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi read soc register 0x%08x\n", + address); + + if (ar->bmi.done_sent) { + ath10k_warn(ar, "bmi read soc register command in progress\n"); + return -EBUSY; + } + + cmd.id = __cpu_to_le32(BMI_READ_SOC_REGISTER); + cmd.read_soc_reg.addr = __cpu_to_le32(address); + + ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &resp, &resplen); + if (ret) { + ath10k_warn(ar, "Unable to read soc register from device: %d\n", + ret); + return ret; + } + + *reg_val = __le32_to_cpu(resp.read_soc_reg.value); + + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi read soc register value 0x%08x\n", + *reg_val); + + return 0; +} + +int ath10k_bmi_write_memory(struct ath10k *ar, + u32 address, const void *buffer, u32 length) +{ + struct bmi_cmd cmd; + u32 hdrlen = sizeof(cmd.id) + sizeof(cmd.write_mem); + u32 txlen; + int ret; + + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi write address 0x%x length %d\n", + address, length); + + if (ar->bmi.done_sent) { + ath10k_warn(ar, "command disallowed\n"); + return -EBUSY; + } + + while (length) { + txlen = min(length, BMI_MAX_DATA_SIZE - hdrlen); + + /* copy before roundup to avoid reading beyond buffer*/ + memcpy(cmd.write_mem.payload, buffer, txlen); + txlen = roundup(txlen, 4); + + cmd.id = __cpu_to_le32(BMI_WRITE_MEMORY); + cmd.write_mem.addr = __cpu_to_le32(address); + cmd.write_mem.len = __cpu_to_le32(txlen); + + ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, hdrlen + txlen, + NULL, NULL); + if (ret) { + ath10k_warn(ar, "unable to write to the device (%d)\n", + ret); + return ret; + } + + /* fixup roundup() so `length` zeroes out for last chunk */ + txlen = min(txlen, length); + + address += txlen; + buffer += txlen; + length -= txlen; + } + + return 0; +} + +int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 param, u32 *result) +{ + struct bmi_cmd cmd; + union bmi_resp resp; + u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.execute); + u32 resplen = sizeof(resp.execute); + int ret; + + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi execute address 0x%x param 0x%x\n", + address, param); + + if (ar->bmi.done_sent) { + ath10k_warn(ar, "command disallowed\n"); + return -EBUSY; + } + + cmd.id = __cpu_to_le32(BMI_EXECUTE); + cmd.execute.addr = __cpu_to_le32(address); + cmd.execute.param = __cpu_to_le32(param); + + ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &resp, &resplen); + if (ret) { + ath10k_warn(ar, "unable to read from the device\n"); + return ret; + } + + if (resplen < sizeof(resp.execute)) { + ath10k_warn(ar, "invalid execute response length (%d)\n", + resplen); + return -EIO; + } + + *result = __le32_to_cpu(resp.execute.result); + + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi execute result 0x%x\n", *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"); + kfree(cmd); + 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; + u32 hdrlen = sizeof(cmd.id) + sizeof(cmd.lz_data); + u32 txlen; + int ret; + + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi lz data buffer 0x%pK length %d\n", + buffer, length); + + if (ar->bmi.done_sent) { + ath10k_warn(ar, "command disallowed\n"); + return -EBUSY; + } + + while (length) { + txlen = min(length, BMI_MAX_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; + } + + return 0; +} + +int ath10k_bmi_lz_stream_start(struct ath10k *ar, u32 address) +{ + struct bmi_cmd cmd; + u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.lz_start); + int ret; + + ath10k_dbg(ar, ATH10K_DBG_BMI, "bmi lz stream start address 0x%x\n", + address); + + if (ar->bmi.done_sent) { + ath10k_warn(ar, "command disallowed\n"); + return -EBUSY; + } + + cmd.id = __cpu_to_le32(BMI_LZ_STREAM_START); + cmd.lz_start.addr = __cpu_to_le32(address); + + ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, NULL, NULL); + if (ret) { + ath10k_warn(ar, "unable to Start LZ Stream to the device\n"); + return ret; + } + + return 0; +} + +int ath10k_bmi_fast_download(struct ath10k *ar, + u32 address, const void *buffer, u32 length) +{ + u8 trailer[4] = {}; + u32 head_len = rounddown(length, 4); + u32 trailer_len = length - head_len; + int ret; + + ath10k_dbg(ar, ATH10K_DBG_BMI, + "bmi fast download address 0x%x buffer 0x%pK length %d\n", + address, buffer, length); + + ret = ath10k_bmi_lz_stream_start(ar, address); + if (ret) + return ret; + + /* copy the last word into a zero padded buffer */ + if (trailer_len > 0) + memcpy(trailer, buffer + head_len, trailer_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; + + if (trailer_len > 0) + ret = ath10k_bmi_lz_data(ar, trailer, 4); + + if (ret != 0) + return ret; + + /* + * Close compressed stream and open a new (fake) one. + * This serves mainly to flush Target caches. + */ + ret = ath10k_bmi_lz_stream_start(ar, 0x00); + + return ret; +} + +int ath10k_bmi_set_start(struct ath10k *ar, u32 address) +{ + struct bmi_cmd cmd; + u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.set_app_start); + int ret; + + if (ar->bmi.done_sent) { + ath10k_warn(ar, "bmi set start command disallowed\n"); + return -EBUSY; + } + + cmd.id = __cpu_to_le32(BMI_SET_APP_START); + cmd.set_app_start.addr = __cpu_to_le32(address); + + ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, NULL, NULL); + if (ret) { + ath10k_warn(ar, "unable to set start to the device:%d\n", ret); + return ret; + } + + return 0; +} -- cgit v1.2.3