Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:57720 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755154AbeBOIr6 (ORCPT ); Thu, 15 Feb 2018 03:47:58 -0500 From: Govind Singh To: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, Govind Singh Subject: [PATCH 02/13] ath10k: add resource init and deinit for WCN3990 Date: Thu, 15 Feb 2018 14:17:50 +0530 Message-Id: <1518684470-5397-1-git-send-email-govinds@codeaurora.org> (sfid-20180215_094801_444210_4D4C1255) Sender: linux-wireless-owner@vger.kernel.org List-ID: Add methods for resource(memory, irq, HOST CE config) initialization and de-initialization for WCN3990 target. WCN3990 target uses 12 copy engine and following CE config. [CE0] :host->target control and raw streams [CE1] :target->host HTT [CE2] :target->host WMI [CE3] :host->target WMI [CE4] :host->target HTT [CE5] :reserved [CE6] :Target autonomous HIF_memcpy [CE7] :reserved [CE8] :reserved [CE9] :target->host HTT [CE10] :target->host HTT [CE11] :target -> host PKTLOG Signed-off-by: Govind Singh --- drivers/net/wireless/ath/ath10k/snoc.c | 271 +++++++++++++++++++++++++++++++++ 1 file changed, 271 insertions(+) diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c index 30354a6..575355c 100644 --- a/drivers/net/wireless/ath/ath10k/snoc.c +++ b/drivers/net/wireless/ath/ath10k/snoc.c @@ -24,12 +24,135 @@ #include #include #include +#define WCN3990_CE_ATTR_FLAGS 0 + +static char *const ce_name[] = { + "WLAN_CE_0", + "WLAN_CE_1", + "WLAN_CE_2", + "WLAN_CE_3", + "WLAN_CE_4", + "WLAN_CE_5", + "WLAN_CE_6", + "WLAN_CE_7", + "WLAN_CE_8", + "WLAN_CE_9", + "WLAN_CE_10", + "WLAN_CE_11", +}; static const struct ath10k_snoc_drv_priv drv_priv = { .hw_rev = ATH10K_HW_WCN3990, .dma_mask = DMA_BIT_MASK(37), }; +static struct ce_attr host_ce_config_wlan[] = { + /* CE0: host->target HTC control streams */ + { + .flags = WCN3990_CE_ATTR_FLAGS, + .src_nentries = 16, + .src_sz_max = 2048, + .dest_nentries = 0, + .send_cb = NULL, + }, + + /* CE1: target->host HTT + HTC control */ + { + .flags = WCN3990_CE_ATTR_FLAGS, + .src_nentries = 0, + .src_sz_max = 2048, + .dest_nentries = 512, + .recv_cb = NULL, + }, + + /* CE2: target->host WMI */ + { + .flags = WCN3990_CE_ATTR_FLAGS, + .src_nentries = 0, + .src_sz_max = 2048, + .dest_nentries = 64, + .recv_cb = NULL, + }, + + /* CE3: host->target WMI */ + { + .flags = WCN3990_CE_ATTR_FLAGS, + .src_nentries = 32, + .src_sz_max = 2048, + .dest_nentries = 0, + .send_cb = NULL, + }, + + /* CE4: host->target HTT */ + { + .flags = WCN3990_CE_ATTR_FLAGS | CE_ATTR_DIS_INTR, + .src_nentries = 256, + .src_sz_max = 256, + .dest_nentries = 0, + .send_cb = NULL, + }, + + /* CE5: target->host HTT (ipa_uc->target ) */ + { + .flags = WCN3990_CE_ATTR_FLAGS, + .src_nentries = 0, + .src_sz_max = 512, + .dest_nentries = 512, + .recv_cb = NULL, + }, + + /* CE6: target autonomous hif_memcpy */ + { + .flags = WCN3990_CE_ATTR_FLAGS, + .src_nentries = 0, + .src_sz_max = 0, + .dest_nentries = 0, + }, + + /* CE7: ce_diag, the Diagnostic Window */ + { + .flags = WCN3990_CE_ATTR_FLAGS, + .src_nentries = 2, + .src_sz_max = 2048, + .dest_nentries = 2, + }, + + /* CE8: Target to uMC */ + { + .flags = WCN3990_CE_ATTR_FLAGS, + .src_nentries = 0, + .src_sz_max = 2048, + .dest_nentries = 128, + }, + + /* CE9 target->host HTT */ + { + .flags = WCN3990_CE_ATTR_FLAGS, + .src_nentries = 0, + .src_sz_max = 2048, + .dest_nentries = 512, + .recv_cb = NULL, + }, + + /* CE10: target->host HTT */ + { + .flags = WCN3990_CE_ATTR_FLAGS, + .src_nentries = 0, + .src_sz_max = 2048, + .dest_nentries = 512, + .recv_cb = NULL, + }, + + /* CE11: target -> host PKTLOG */ + { + .flags = WCN3990_CE_ATTR_FLAGS, + .src_nentries = 0, + .src_sz_max = 2048, + .dest_nentries = 512, + .recv_cb = NULL, + }, +}; + void ath10k_snoc_write32(struct ath10k *ar, u32 offset, u32 value) { struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); @@ -57,6 +180,119 @@ u32 ath10k_snoc_read32(struct ath10k *ar, u32 offset) .write32 = ath10k_snoc_write32, }; +static irqreturn_t ath10k_snoc_per_engine_handler(int irq, void *arg) +{ + return IRQ_HANDLED; +} + +static int ath10k_snoc_request_irq(struct ath10k *ar) +{ + struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); + int irqflags = IRQF_TRIGGER_RISING; + int ret, id; + + for (id = 0; id < CE_COUNT_MAX; id++) { + ret = request_irq(ar_snoc->ce_irqs[id].irq_line, + ath10k_snoc_per_engine_handler, + irqflags, ce_name[id], ar); + if (ret) { + ath10k_err(ar, + "failed to register IRQ handler for CE %d: %d", + id, ret); + goto err_irq; + } + } + + return 0; + +err_irq: + for (id -= 1; id >= 0; id--) + free_irq(ar_snoc->ce_irqs[id].irq_line, ar); + + return ret; +} + +static void ath10k_snoc_free_irq(struct ath10k *ar) +{ + struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); + int id; + + for (id = 0; id < CE_COUNT_MAX; id++) + free_irq(ar_snoc->ce_irqs[id].irq_line, ar); +} + +static int ath10k_snoc_resource_init(struct ath10k *ar) +{ + struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); + struct platform_device *pdev; + struct resource *res; + int i, ret = 0; + + pdev = ar_snoc->dev; + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "membase"); + if (!res) { + ath10k_err(ar, "Memory base not found in DT\n"); + return -EINVAL; + } + + ar_snoc->mem_pa = res->start; + ar_snoc->mem = devm_ioremap(&pdev->dev, ar_snoc->mem_pa, + resource_size(res)); + if (!ar_snoc->mem) { + ath10k_err(ar, "Memory base ioremap failed with physical address %pa\n", + &ar_snoc->mem_pa); + return -EINVAL; + } + + for (i = 0; i < CE_COUNT; i++) { + res = platform_get_resource(ar_snoc->dev, IORESOURCE_IRQ, i); + if (!res) { + ath10k_err(ar, "failed to get IRQ%d\n", i); + ret = -ENODEV; + goto out; + } + ar_snoc->ce_irqs[i].irq_line = res->start; + } + +out: + return ret; +} + +static int ath10k_snoc_setup_resource(struct ath10k *ar) +{ + struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); + struct ath10k_ce *ce = ath10k_ce_priv(ar); + struct ath10k_snoc_pipe *pipe; + int i, ret; + + spin_lock_init(&ce->ce_lock); + for (i = 0; i < CE_COUNT; i++) { + pipe = &ar_snoc->pipe_info[i]; + pipe->ce_hdl = &ce->ce_states[i]; + pipe->pipe_num = i; + pipe->hif_ce_state = ar; + + ret = ath10k_ce_alloc_pipe(ar, i, &host_ce_config_wlan[i]); + if (ret) { + ath10k_err(ar, "failed to allocate copy engine pipe %d: %d\n", + i, ret); + return ret; + } + + pipe->buf_sz = host_ce_config_wlan[i].src_sz_max; + } + + return 0; +} + +static void ath10k_snoc_release_resource(struct ath10k *ar) +{ + int i; + + for (i = 0; i < CE_COUNT; i++) + ath10k_ce_free_pipe(ar, i); +} + static const struct of_device_id ath10k_snoc_dt_match[] = { { .compatible = "qcom,wcn3990-wifi", .data = &drv_priv, @@ -103,9 +339,41 @@ static int ath10k_snoc_probe(struct platform_device *pdev) ar_snoc->ce.bus_ops = &ath10k_snoc_bus_ops; ar->ce_priv = &ar_snoc->ce; + ath10k_snoc_resource_init(ar); + if (ret) { + ath10k_warn(ar, "failed to initialize resource: %d\n", ret); + goto err_core_destroy; + } + + ath10k_snoc_setup_resource(ar); + if (ret) { + ath10k_warn(ar, "failed to setup resource: %d\n", ret); + goto err_core_destroy; + } + ret = ath10k_snoc_request_irq(ar); + if (ret) { + ath10k_warn(ar, "failed to request irqs: %d\n", ret); + goto err_release_resource; + } + ret = ath10k_core_register(ar, drv_data->hw_rev); + if (ret) { + ath10k_err(ar, "failed to register driver core: %d\n", ret); + goto err_free_irq; + } ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc probe\n"); ath10k_warn(ar, "Warning: SNOC support is still work-in-progress, it will not work properly!"); + return 0; + +err_free_irq: + ath10k_snoc_free_irq(ar); + +err_release_resource: + ath10k_snoc_release_resource(ar); + +err_core_destroy: + ath10k_core_destroy(ar); + return ret; } @@ -114,6 +382,9 @@ static int ath10k_snoc_remove(struct platform_device *pdev) struct ath10k *ar = platform_get_drvdata(pdev); ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc remove\n"); + ath10k_core_unregister(ar); + ath10k_snoc_free_irq(ar); + ath10k_snoc_release_resource(ar); ath10k_core_destroy(ar); return 0; -- 1.9.1