Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath10k/core.c | 665 ++++++++++++++++++++++++++++++++
1 file changed, 665 insertions(+)
create mode 100644 drivers/net/wireless/ath/ath10k/core.c
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
new file mode 100644
index 0000000..2b3426b
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -0,0 +1,665 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/firmware.h>
+
+#include "core.h"
+#include "mac.h"
+#include "htc.h"
+#include "hif.h"
+#include "wmi.h"
+#include "bmi.h"
+#include "debug.h"
+#include "htt.h"
+
+unsigned int ath10k_debug_mask;
+static bool uart_print;
+static unsigned int ath10k_p2p;
+module_param_named(debug_mask, ath10k_debug_mask, uint, 0644);
+module_param(uart_print, bool, 0644);
+module_param_named(p2p, ath10k_p2p, uint, 0644);
+MODULE_PARM_DESC(debug_mask, "Debugging mask");
+MODULE_PARM_DESC(uart_print, "Uart target debugging");
+MODULE_PARM_DESC(p2p, "Enable ath10k P2P support");
+
+static const struct ath10k_hw_params ath10k_hw_params_list[] = {
+ {
+ .id = QCA988X_HW_1_0_VERSION,
+ .name = "qca988x hw1.0",
+ .patch_load_addr = QCA988X_HW_1_0_PATCH_LOAD_ADDR,
+ .fw = {
+ .dir = QCA988X_HW_1_0_FW_DIR,
+ .fw = QCA988X_HW_1_0_FW_FILE,
+ .otp = QCA988X_HW_1_0_OTP_FILE,
+ .board = QCA988X_HW_1_0_BOARD_DATA_FILE,
+ },
+ },
+ {
+ .id = QCA988X_HW_2_0_VERSION,
+ .name = "qca988x hw2.0",
+ .patch_load_addr = QCA988X_HW_2_0_PATCH_LOAD_ADDR,
+ .fw = {
+ .dir = QCA988X_HW_2_0_FW_DIR,
+ .fw = QCA988X_HW_2_0_FW_FILE,
+ .otp = QCA988X_HW_2_0_OTP_FILE,
+ .board = QCA988X_HW_2_0_BOARD_DATA_FILE,
+ },
+ },
+};
+
+static void ath10k_send_suspend_complete(struct ath10k *ar)
+{
+ ath10k_dbg(ATH10K_DBG_CORE, "%s\n", __func__);
+
+ ar->is_target_paused = true;
+ wake_up(&ar->event_queue);
+}
+
+static int ath10k_check_fw_version(struct ath10k *ar)
+{
+ char version[32];
+
+ if (ar->fw_version_major >= SUPPORTED_FW_MAJOR &&
+ ar->fw_version_minor >= SUPPORTED_FW_MINOR &&
+ ar->fw_version_release >= SUPPORTED_FW_RELEASE &&
+ ar->fw_version_build >= SUPPORTED_FW_BUILD)
+ return 0;
+
+ snprintf(version, sizeof(version), "%u.%u.%u.%u",
+ SUPPORTED_FW_MAJOR, SUPPORTED_FW_MINOR,
+ SUPPORTED_FW_RELEASE, SUPPORTED_FW_BUILD);
+
+ ath10k_warn("WARNING: Firmware version %s is not officially supported.\n",
+ ar->hw->wiphy->fw_version);
+ ath10k_warn("Please upgrade to version %s (or newer)\n", version);
+
+ return 0;
+}
+
+static int ath10k_init_connect_htc(struct ath10k *ar)
+{
+ int status;
+
+ status = ath10k_wmi_connect_htc_service(ar);
+ if (status)
+ goto conn_fail;
+
+ /* Start HTC */
+ status = ath10k_htc_start(ar->htc);
+ if (status)
+ goto conn_fail;
+
+ /* Wait for WMI event to be ready */
+ status = ath10k_wmi_wait_for_service_ready(ar);
+ if (status <= 0) {
+ ath10k_warn("wmi service ready event not received");
+ status = -ETIMEDOUT;
+ goto timeout;
+ }
+
+ ath10k_dbg(ATH10K_DBG_CORE, "core wmi ready\n");
+ return 0;
+
+timeout:
+ ath10k_htc_stop(ar->htc);
+conn_fail:
+ return status;
+}
+
+static int ath10k_init_configure_target(struct ath10k *ar)
+{
+ u32 param_host;
+ int ret;
+
+ /* tell target which HTC version it is used*/
+ ret = ath10k_bmi_write32(ar, hi_app_host_interest,
+ HTC_PROTOCOL_VERSION);
+ if (ret) {
+ ath10k_err("settings HTC version failed\n");
+ return ret;
+ }
+
+ /* set the firmware mode to STA/IBSS/AP */
+ ret = ath10k_bmi_read32(ar, hi_option_flag, ¶m_host);
+ if (ret) {
+ ath10k_err("setting firmware mode (1/2) failed\n");
+ return ret;
+ }
+
+ /* TODO following parameters need to be re-visited. */
+ /* num_device */
+ param_host |= (1 << HI_OPTION_NUM_DEV_SHIFT);
+ /* Firmware mode */
+ /* FIXME: Why FW_MODE_AP ??.*/
+ param_host |= (HI_OPTION_FW_MODE_AP << HI_OPTION_FW_MODE_SHIFT);
+ /* mac_addr_method */
+ param_host |= (1 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
+ /* firmware_bridge */
+ param_host |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
+ /* fwsubmode */
+ param_host |= (0 << HI_OPTION_FW_SUBMODE_SHIFT);
+
+ ret = ath10k_bmi_write32(ar, hi_option_flag, param_host);
+ if (ret) {
+ ath10k_err("setting firmware mode (2/2) failed\n");
+ return ret;
+ }
+
+ /* We do all byte-swapping on the host */
+ ret = ath10k_bmi_write32(ar, hi_be, 0);
+ if (ret) {
+ ath10k_err("setting host CPU BE mode failed\n");
+ return ret;
+ }
+
+ /* FW descriptor/Data swap flags */
+ ret = ath10k_bmi_write32(ar, hi_fw_swap, 0);
+
+ if (ret) {
+ ath10k_err("setting FW data/desc swap flags failed\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
+ const char *dir,
+ const char *file)
+{
+ char filename[100];
+ const struct firmware *fw;
+ int ret;
+
+ if (file == NULL)
+ return ERR_PTR(-ENOENT);
+
+ if (dir == NULL)
+ dir = ".";
+
+ snprintf(filename, sizeof(filename), "%s/%s", dir, file);
+ ret = request_firmware(&fw, filename, ar->dev);
+ if (ret)
+ return ERR_PTR(ret);
+
+ return fw;
+}
+
+static int ath10k_push_board_ext_data(struct ath10k *ar,
+ const struct firmware *fw)
+{
+ u32 board_data_size = QCA988X_BOARD_DATA_SZ;
+ u32 board_ext_data_size = QCA988X_BOARD_EXT_DATA_SZ;
+ u32 board_ext_data_addr;
+ int ret;
+
+ ret = ath10k_bmi_read32(ar, hi_board_ext_data, &board_ext_data_addr);
+ if (ret) {
+ ath10k_err("could not read board ext data addr (%d)\n", ret);
+ return ret;
+ }
+
+ ath10k_dbg(ATH10K_DBG_CORE,
+ "ath10k: Board extended Data download addr: 0x%x\n",
+ board_ext_data_addr);
+
+ if (board_ext_data_addr == 0)
+ return 0;
+
+ if (fw->size != (board_data_size + board_ext_data_size)) {
+ ath10k_err("invalid board (ext) data sizes %zu != %d+%d\n",
+ fw->size, board_data_size, board_ext_data_size);
+ return -EINVAL;
+ }
+
+ ret = ath10k_bmi_write_memory(ar, board_ext_data_addr,
+ fw->data + board_data_size,
+ board_ext_data_size);
+ if (ret) {
+ ath10k_err("could not write board ext data (%d)\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_bmi_write32(ar, hi_board_ext_data_config,
+ (board_ext_data_size << 16) | 1);
+ if (ret) {
+ ath10k_err("could not write board ext data bit (%d)\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int ath10k_download_board_data(struct ath10k *ar)
+{
+ u32 board_data_size = QCA988X_BOARD_DATA_SZ;
+ u32 address;
+ const struct firmware *fw;
+ int ret;
+
+ fw = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir,
+ ar->hw_params.fw.board);
+ if (IS_ERR(fw)) {
+ ath10k_err("could not fetch board data fw file (%ld)\n",
+ PTR_ERR(fw));
+ return PTR_ERR(fw);
+ }
+
+ ret = ath10k_push_board_ext_data(ar, fw);
+ if (ret) {
+ ath10k_err("could not push board ext data (%d)\n", ret);
+ goto exit;
+ }
+
+ ret = ath10k_bmi_read32(ar, hi_board_data, &address);
+ if (ret) {
+ ath10k_err("could not read board data addr (%d)\n", ret);
+ goto exit;
+ }
+
+ ret = ath10k_bmi_write_memory(ar, address, fw->data,
+ min_t(u32, board_data_size, fw->size));
+ if (ret) {
+ ath10k_err("could not write board data (%d)\n", ret);
+ goto exit;
+ }
+
+ ret = ath10k_bmi_write32(ar, hi_board_data_initialized, 1);
+ if (ret) {
+ ath10k_err("could not write board data bit (%d)\n", ret);
+ goto exit;
+ }
+
+exit:
+ release_firmware(fw);
+ return ret;
+}
+
+static int ath10k_download_and_run_otp(struct ath10k *ar)
+{
+ const struct firmware *fw;
+ u32 address;
+ u32 exec_param;
+ int ret;
+
+ /* OTP is optional */
+
+ if (ar->hw_params.fw.otp == NULL) {
+ ath10k_info("otp file not defined\n");
+ return 0;
+ }
+
+ address = ar->hw_params.patch_load_addr;
+
+ fw = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir,
+ ar->hw_params.fw.otp);
+ if (IS_ERR(fw)) {
+ ath10k_warn("could not fetch otp (%ld)\n", PTR_ERR(fw));
+ return 0;
+ }
+
+ ret = ath10k_bmi_fast_download(ar, address, fw->data, fw->size);
+ if (ret) {
+ ath10k_err("could not write otp (%d)\n", ret);
+ goto exit;
+ }
+
+ exec_param = 0;
+ ret = ath10k_bmi_execute(ar, address, &exec_param);
+ if (ret) {
+ ath10k_err("could not execute otp (%d)\n", ret);
+ goto exit;
+ }
+
+exit:
+ release_firmware(fw);
+ return ret;
+}
+
+static int ath10k_download_fw(struct ath10k *ar)
+{
+ const struct firmware *fw;
+ u32 address;
+ int ret;
+
+ if (ar->hw_params.fw.fw == NULL)
+ return -EINVAL;
+
+ address = ar->hw_params.patch_load_addr;
+
+ fw = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir,
+ ar->hw_params.fw.fw);
+ if (IS_ERR(fw)) {
+ ath10k_err("could not fetch fw (%ld)\n", PTR_ERR(fw));
+ return PTR_ERR(fw);
+ }
+
+ ret = ath10k_bmi_fast_download(ar, address, fw->data, fw->size);
+ if (ret) {
+ ath10k_err("could not write fw (%d)\n", ret);
+ goto exit;
+ }
+
+exit:
+ release_firmware(fw);
+ return ret;
+}
+
+static int ath10k_init_download_firmware(struct ath10k *ar)
+{
+ int ret;
+
+ ret = ath10k_download_board_data(ar);
+ if (ret)
+ return ret;
+
+ ret = ath10k_download_and_run_otp(ar);
+ if (ret)
+ return ret;
+
+ ret = ath10k_download_fw(ar);
+ if (ret)
+ return ret;
+
+ return ret;
+}
+
+static int ath10k_init_uart(struct ath10k *ar)
+{
+ int ret;
+
+ /*
+ * Explicitly setting UART prints to zero as target turns it on
+ * based on scratch registers.
+ */
+ ret = ath10k_bmi_write32(ar, hi_serial_enable, 0);
+ if (ret) {
+ ath10k_warn("could not disable UART prints (%d)\n", ret);
+ return ret;
+ }
+
+ if (!uart_print) {
+ ath10k_info("UART prints disabled\n");
+ return 0;
+ }
+
+ ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin, 7);
+ if (ret) {
+ ath10k_warn("could not enable UART prints (%d)\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_bmi_write32(ar, hi_serial_enable, 1);
+ if (ret) {
+ ath10k_warn("could not enable UART prints (%d)\n", ret);
+ return ret;
+ }
+
+ ath10k_info("UART prints enabled\n");
+ return 0;
+}
+
+static int ath10k_init_hw_params(struct ath10k *ar)
+{
+ const struct ath10k_hw_params *uninitialized_var(hw_params);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(ath10k_hw_params_list); i++) {
+ hw_params = &ath10k_hw_params_list[i];
+
+ if (hw_params->id == ar->target_version)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(ath10k_hw_params_list)) {
+ ath10k_err("Unsupported hardware version: 0x%x\n",
+ ar->target_version);
+ return -EINVAL;
+ }
+
+ ar->hw_params = *hw_params;
+
+ ath10k_info("Hardware name %s version 0x%x\n",
+ ar->hw_params.name, ar->target_version);
+
+ return 0;
+}
+
+struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
+ enum ath10k_bus bus,
+ const struct ath10k_hif_ops *hif_ops)
+{
+ struct ath10k *ar;
+
+ ar = ath10k_mac_create();
+ if (!ar)
+ return NULL;
+
+ ar->ath_common.priv = ar;
+ ar->ath_common.hw = ar->hw;
+
+ ar->p2p = !!ath10k_p2p;
+ ar->dev = dev;
+
+ ar->hif.priv = hif_priv;
+ ar->hif.ops = hif_ops;
+ ar->hif.bus = bus;
+
+ ar->free_vdev_map = 0xFF; /* 8 vdevs */
+
+ init_completion(&ar->scan.started);
+ init_completion(&ar->scan.completed);
+ init_completion(&ar->scan.on_channel);
+
+ init_completion(&ar->install_key_done);
+ init_completion(&ar->vdev_setup_done);
+
+ setup_timer(&ar->scan.timeout, ath10k_reset_scan, (unsigned long)ar);
+
+ ar->workqueue = create_singlethread_workqueue("ath10k_wq");
+ if (!ar->workqueue)
+ goto err_wq;
+
+ mutex_init(&ar->conf_mutex);
+ spin_lock_init(&ar->data_lock);
+
+ INIT_LIST_HEAD(&ar->peers);
+ init_waitqueue_head(&ar->peer_mapping_wq);
+
+ init_completion(&ar->offchan_tx_completed);
+ INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work);
+ skb_queue_head_init(&ar->offchan_tx_queue);
+
+ init_waitqueue_head(&ar->event_queue);
+
+ return ar;
+
+err_wq:
+ ath10k_mac_destroy(ar);
+ return NULL;
+}
+EXPORT_SYMBOL(ath10k_core_create);
+
+void ath10k_core_destroy(struct ath10k *ar)
+{
+ flush_workqueue(ar->workqueue);
+ destroy_workqueue(ar->workqueue);
+
+ ath10k_mac_destroy(ar);
+}
+EXPORT_SYMBOL(ath10k_core_destroy);
+
+
+int ath10k_core_register(struct ath10k *ar)
+{
+ struct ath10k_htc_ops htc_ops;
+ struct bmi_target_info target_info;
+ int status;
+
+ memset(&target_info, 0, sizeof(target_info));
+ status = ath10k_bmi_get_target_info(ar, &target_info);
+ if (status)
+ goto err;
+
+ ar->target_version = target_info.version;
+ ar->hw->wiphy->hw_version = target_info.version;
+
+ status = ath10k_init_hw_params(ar);
+ if (status)
+ goto err;
+
+ if (ath10k_init_configure_target(ar)) {
+ status = -EINVAL;
+ goto err;
+ }
+
+ status = ath10k_init_download_firmware(ar);
+ if (status)
+ goto err;
+
+ status = ath10k_init_uart(ar);
+ if (status)
+ goto err;
+
+ htc_ops.target_send_suspend_complete = ath10k_send_suspend_complete;
+
+ ar->htc = ath10k_htc_create(ar, &htc_ops);
+ if (IS_ERR(ar->htc)) {
+ status = PTR_ERR(ar->htc);
+ ath10k_err("could not create HTC (%d)\n", status);
+ goto err;
+ }
+
+ status = ath10k_bmi_done(ar);
+ if (status)
+ goto err_htc_destroy;
+
+ status = ath10k_wmi_attach(ar);
+ if (status) {
+ ath10k_err("WMI attach failed: %d\n", status);
+ goto err_htc_destroy;
+ }
+
+ status = ath10k_htc_wait_target(ar->htc);
+ if (status)
+ goto err_wmi_detach;
+
+ ar->htt = ath10k_htt_attach(ar);
+ if (!ar->htt) {
+ status = -ENOMEM;
+ goto err_wmi_detach;
+ }
+
+ status = ath10k_init_connect_htc(ar);
+ if (status)
+ goto err_htt_detach;
+
+ ath10k_info("firmware %s booted\n", ar->hw->wiphy->fw_version);
+
+ status = ath10k_check_fw_version(ar);
+ if (status)
+ goto err_disconnect_htc;
+
+ status = ath10k_wmi_cmd_init(ar);
+ if (status) {
+ ath10k_err("could not send WMI init command (%d)\n", status);
+ goto err_disconnect_htc;
+ }
+
+ status = ath10k_wmi_wait_for_unified_ready(ar);
+ if (status <= 0) {
+ ath10k_err("wmi unified ready event not received\n");
+ status = -ETIMEDOUT;
+ goto err_disconnect_htc;
+ }
+
+ status = ath10k_htt_attach_target(ar->htt);
+ if (status)
+ goto err_disconnect_htc;
+
+ status = ath10k_mac_register(ar);
+ if (status)
+ goto err_disconnect_htc;
+
+ status = ath10k_debug_create(ar);
+ if (status) {
+ ath10k_err("unable to initialize debugfs\n");
+ goto err_unregister_mac;
+ }
+
+ return 0;
+
+err_unregister_mac:
+ ath10k_mac_unregister(ar);
+err_disconnect_htc:
+ ath10k_htc_stop(ar->htc);
+err_htt_detach:
+ ath10k_htt_detach(ar->htt);
+err_wmi_detach:
+ ath10k_wmi_detach(ar);
+err_htc_destroy:
+ ath10k_htc_destroy(ar->htc);
+err:
+ return status;
+}
+EXPORT_SYMBOL(ath10k_core_register);
+
+void ath10k_core_unregister(struct ath10k *ar)
+{
+ /* We must unregister from mac80211 before we stop HTC and HIF.
+ * Otherwise we will fail to submit commands to FW and mac80211 will be
+ * unhappy about callback failures. */
+ ath10k_mac_unregister(ar);
+ ath10k_htc_stop(ar->htc);
+ ath10k_htt_detach(ar->htt);
+ ath10k_wmi_detach(ar);
+ ath10k_htc_destroy(ar->htc);
+}
+EXPORT_SYMBOL(ath10k_core_unregister);
+
+int ath10k_core_target_suspend(struct ath10k *ar)
+{
+ int ret;
+
+ ath10k_dbg(ATH10K_DBG_CORE, "%s: called", __func__);
+
+ ret = ath10k_wmi_pdev_suspend_target(ar);
+ if (ret)
+ ath10k_warn("could not suspend target (%d)\n", ret);
+
+ return ret;
+}
+EXPORT_SYMBOL(ath10k_core_target_suspend);
+
+int ath10k_core_target_resume(struct ath10k *ar)
+{
+ int ret;
+
+ ath10k_dbg(ATH10K_DBG_CORE, "%s: called", __func__);
+
+ ret = ath10k_wmi_pdev_resume_target(ar);
+ if (ret)
+ ath10k_warn("could not resume target (%d)\n", ret);
+
+ return ret;
+}
+EXPORT_SYMBOL(ath10k_core_target_resume);
+
+MODULE_AUTHOR("Qualcomm Atheros");
+MODULE_DESCRIPTION("Core module for QCA988X PCIe devices.");
+MODULE_LICENSE("Dual BSD/GPL");
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