diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/snoc.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/snoc.c | 93 |
1 files changed, 73 insertions, 20 deletions
diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c index 54efe6be8f1d..873cb4ce419b 100644 --- a/drivers/net/wireless/ath/ath10k/snoc.c +++ b/drivers/net/wireless/ath/ath10k/snoc.c @@ -1,17 +1,6 @@ +// SPDX-License-Identifier: ISC /* * Copyright (c) 2018 The Linux Foundation. All rights reserved. - * - * 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/clk.h> @@ -30,6 +19,7 @@ #define ATH10K_SNOC_RX_POST_RETRY_MS 50 #define CE_POLL_PIPE 4 +#define ATH10K_SNOC_WAKE_IRQ 2 static char *const ce_name[] = { "WLAN_CE_0", @@ -66,7 +56,7 @@ static void ath10k_snoc_pktlog_rx_cb(struct ath10k_ce_pipe *ce_state); static const struct ath10k_snoc_drv_priv drv_priv = { .hw_rev = ATH10K_HW_WCN3990, - .dma_mask = DMA_BIT_MASK(37), + .dma_mask = DMA_BIT_MASK(35), .msa_size = 0x100000, }; @@ -875,13 +865,11 @@ static void ath10k_snoc_tx_pipe_cleanup(struct ath10k_snoc_pipe *snoc_pipe) { struct ath10k_ce_pipe *ce_pipe; struct ath10k_ce_ring *ce_ring; - struct ath10k_snoc *ar_snoc; struct sk_buff *skb; struct ath10k *ar; int i; ar = snoc_pipe->hif_ce_state; - ar_snoc = ath10k_snoc_priv(ar); ce_pipe = snoc_pipe->ce_hdl; ce_ring = ce_pipe->src_ring; @@ -958,7 +946,8 @@ static int ath10k_snoc_init_pipes(struct ath10k *ar) return 0; } -static int ath10k_snoc_wlan_enable(struct ath10k *ar) +static int ath10k_snoc_wlan_enable(struct ath10k *ar, + enum ath10k_firmware_mode fw_mode) { struct ath10k_tgt_pipe_cfg tgt_cfg[CE_COUNT_MAX]; struct ath10k_qmi_wlan_enable_cfg cfg; @@ -992,7 +981,17 @@ static int ath10k_snoc_wlan_enable(struct ath10k *ar) cfg.shadow_reg_cfg = (struct ath10k_shadow_reg_cfg *) &target_shadow_reg_cfg_map; - mode = QMI_WLFW_MISSION_V01; + switch (fw_mode) { + case ATH10K_FIRMWARE_MODE_NORMAL: + mode = QMI_WLFW_MISSION_V01; + break; + case ATH10K_FIRMWARE_MODE_UTF: + mode = QMI_WLFW_FTM_V01; + break; + default: + ath10k_err(ar, "invalid firmware mode %d\n", fw_mode); + return -EINVAL; + } return ath10k_qmi_wlan_enable(ar, &cfg, mode, NULL); @@ -1000,7 +999,16 @@ static int ath10k_snoc_wlan_enable(struct ath10k *ar) static void ath10k_snoc_wlan_disable(struct ath10k *ar) { - if (!test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags)) + struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); + + /* If both ATH10K_FLAG_CRASH_FLUSH and ATH10K_SNOC_FLAG_RECOVERY + * flags are not set, it means that the driver has restarted + * due to a crash inject via debugfs. In this case, the driver + * needs to restart the firmware and hence send qmi wlan disable, + * during the driver restart sequence. + */ + if (!test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags) || + !test_bit(ATH10K_SNOC_FLAG_RECOVERY, &ar_snoc->flags)) ath10k_qmi_wlan_disable(ar); } @@ -1012,14 +1020,15 @@ static void ath10k_snoc_hif_power_down(struct ath10k *ar) ath10k_ce_free_rri(ar); } -static int ath10k_snoc_hif_power_up(struct ath10k *ar) +static int ath10k_snoc_hif_power_up(struct ath10k *ar, + enum ath10k_firmware_mode fw_mode) { int ret; ath10k_dbg(ar, ATH10K_DBG_SNOC, "%s:WCN3990 driver state = %d\n", __func__, ar->state); - ret = ath10k_snoc_wlan_enable(ar); + ret = ath10k_snoc_wlan_enable(ar, fw_mode); if (ret) { ath10k_err(ar, "failed to enable wcn3990: %d\n", ret); return ret; @@ -1041,6 +1050,46 @@ err_wlan_enable: return ret; } +#ifdef CONFIG_PM +static int ath10k_snoc_hif_suspend(struct ath10k *ar) +{ + struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); + int ret; + + if (!device_may_wakeup(ar->dev)) + return -EPERM; + + ret = enable_irq_wake(ar_snoc->ce_irqs[ATH10K_SNOC_WAKE_IRQ].irq_line); + if (ret) { + ath10k_err(ar, "failed to enable wakeup irq :%d\n", ret); + return ret; + } + + ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc device suspended\n"); + + return ret; +} + +static int ath10k_snoc_hif_resume(struct ath10k *ar) +{ + struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); + int ret; + + if (!device_may_wakeup(ar->dev)) + return -EPERM; + + ret = disable_irq_wake(ar_snoc->ce_irqs[ATH10K_SNOC_WAKE_IRQ].irq_line); + if (ret) { + ath10k_err(ar, "failed to disable wakeup irq: %d\n", ret); + return ret; + } + + ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc device resumed\n"); + + return ret; +} +#endif + static const struct ath10k_hif_ops ath10k_snoc_hif_ops = { .read32 = ath10k_snoc_read32, .write32 = ath10k_snoc_write32, @@ -1054,6 +1103,10 @@ static const struct ath10k_hif_ops ath10k_snoc_hif_ops = { .send_complete_check = ath10k_snoc_hif_send_complete_check, .get_free_queue_number = ath10k_snoc_hif_get_free_queue_number, .get_target_info = ath10k_snoc_hif_get_target_info, +#ifdef CONFIG_PM + .suspend = ath10k_snoc_hif_suspend, + .resume = ath10k_snoc_hif_resume, +#endif }; static const struct ath10k_bus_ops ath10k_snoc_bus_ops = { |