ath10k: add QMI message handshake for wcn3990 client

Add WCN3990 QMI client handshakes for Q6 integrated WLAN connectivity
subsystem. This layer is responsible for communicating qmi control
messages to wifi fw QMI service using QMI messaging protocol.

Qualcomm MSM Interface(QMI) is a messaging format used to communicate
between components running between remote processors with underlying
transport layer based on integrated chipset(shared memory) or
discrete chipset(PCI/USB/SDIO/UART).

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Niklas Cassel <niklas.cassel@linaro.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 257 insertions, 10 deletions

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index f7b5b855aab2..8d3d9bca410f 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -67,6 +67,72 @@ 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),
+	.msa_size = 0x100000,
+};
+
+#define WCN3990_SRC_WR_IDX_OFFSET 0x3C
+#define WCN3990_DST_WR_IDX_OFFSET 0x40
+
+static struct ath10k_shadow_reg_cfg target_shadow_reg_cfg_map[] = {
+		{
+			.ce_id = __cpu_to_le16(0),
+			.reg_offset = __cpu_to_le16(WCN3990_SRC_WR_IDX_OFFSET),
+		},
+
+		{
+			.ce_id = __cpu_to_le16(3),
+			.reg_offset = __cpu_to_le16(WCN3990_SRC_WR_IDX_OFFSET),
+		},
+
+		{
+			.ce_id = __cpu_to_le16(4),
+			.reg_offset = __cpu_to_le16(WCN3990_SRC_WR_IDX_OFFSET),
+		},
+
+		{
+			.ce_id = __cpu_to_le16(5),
+			.reg_offset =  __cpu_to_le16(WCN3990_SRC_WR_IDX_OFFSET),
+		},
+
+		{
+			.ce_id = __cpu_to_le16(7),
+			.reg_offset = __cpu_to_le16(WCN3990_SRC_WR_IDX_OFFSET),
+		},
+
+		{
+			.ce_id = __cpu_to_le16(1),
+			.reg_offset = __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
+		},
+
+		{
+			.ce_id = __cpu_to_le16(2),
+			.reg_offset =  __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
+		},
+
+		{
+			.ce_id = __cpu_to_le16(7),
+			.reg_offset =  __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
+		},
+
+		{
+			.ce_id = __cpu_to_le16(8),
+			.reg_offset =  __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
+		},
+
+		{
+			.ce_id = __cpu_to_le16(9),
+			.reg_offset = __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
+		},
+
+		{
+			.ce_id = __cpu_to_le16(10),
+			.reg_offset =  __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
+		},
+
+		{
+			.ce_id = __cpu_to_le16(11),
+			.reg_offset = __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
+		},
 };
 
 static struct ce_attr host_ce_config_wlan[] = {
@@ -176,6 +242,128 @@ static struct ce_attr host_ce_config_wlan[] = {
 	},
 };
 
+static struct ce_pipe_config target_ce_config_wlan[] = {
+	/* CE0: host->target HTC control and raw streams */
+	{
+		.pipenum = __cpu_to_le32(0),
+		.pipedir = __cpu_to_le32(PIPEDIR_OUT),
+		.nentries = __cpu_to_le32(32),
+		.nbytes_max = __cpu_to_le32(2048),
+		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
+		.reserved = __cpu_to_le32(0),
+	},
+
+	/* CE1: target->host HTT + HTC control */
+	{
+		.pipenum = __cpu_to_le32(1),
+		.pipedir = __cpu_to_le32(PIPEDIR_IN),
+		.nentries = __cpu_to_le32(32),
+		.nbytes_max = __cpu_to_le32(2048),
+		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
+		.reserved = __cpu_to_le32(0),
+	},
+
+	/* CE2: target->host WMI */
+	{
+		.pipenum = __cpu_to_le32(2),
+		.pipedir = __cpu_to_le32(PIPEDIR_IN),
+		.nentries = __cpu_to_le32(64),
+		.nbytes_max = __cpu_to_le32(2048),
+		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
+		.reserved = __cpu_to_le32(0),
+	},
+
+	/* CE3: host->target WMI */
+	{
+		.pipenum = __cpu_to_le32(3),
+		.pipedir = __cpu_to_le32(PIPEDIR_OUT),
+		.nentries = __cpu_to_le32(32),
+		.nbytes_max = __cpu_to_le32(2048),
+		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
+		.reserved = __cpu_to_le32(0),
+	},
+
+	/* CE4: host->target HTT */
+	{
+		.pipenum = __cpu_to_le32(4),
+		.pipedir = __cpu_to_le32(PIPEDIR_OUT),
+		.nentries = __cpu_to_le32(256),
+		.nbytes_max = __cpu_to_le32(256),
+		.flags = __cpu_to_le32(CE_ATTR_FLAGS | CE_ATTR_DIS_INTR),
+		.reserved = __cpu_to_le32(0),
+	},
+
+	/* CE5: target->host HTT (HIF->HTT) */
+	{
+		.pipenum = __cpu_to_le32(5),
+		.pipedir = __cpu_to_le32(PIPEDIR_OUT),
+		.nentries = __cpu_to_le32(1024),
+		.nbytes_max = __cpu_to_le32(64),
+		.flags = __cpu_to_le32(CE_ATTR_FLAGS | CE_ATTR_DIS_INTR),
+		.reserved = __cpu_to_le32(0),
+	},
+
+	/* CE6: Reserved for target autonomous hif_memcpy */
+	{
+		.pipenum = __cpu_to_le32(6),
+		.pipedir = __cpu_to_le32(PIPEDIR_INOUT),
+		.nentries = __cpu_to_le32(32),
+		.nbytes_max = __cpu_to_le32(16384),
+		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
+		.reserved = __cpu_to_le32(0),
+	},
+
+	/* CE7 used only by Host */
+	{
+		.pipenum = __cpu_to_le32(7),
+		.pipedir = __cpu_to_le32(4),
+		.nentries = __cpu_to_le32(0),
+		.nbytes_max = __cpu_to_le32(0),
+		.flags = __cpu_to_le32(CE_ATTR_FLAGS | CE_ATTR_DIS_INTR),
+		.reserved = __cpu_to_le32(0),
+	},
+
+	/* CE8 Target to uMC */
+	{
+		.pipenum = __cpu_to_le32(8),
+		.pipedir = __cpu_to_le32(PIPEDIR_IN),
+		.nentries = __cpu_to_le32(32),
+		.nbytes_max = __cpu_to_le32(2048),
+		.flags = __cpu_to_le32(0),
+		.reserved = __cpu_to_le32(0),
+	},
+
+	/* CE9 target->host HTT */
+	{
+		.pipenum = __cpu_to_le32(9),
+		.pipedir = __cpu_to_le32(PIPEDIR_IN),
+		.nentries = __cpu_to_le32(32),
+		.nbytes_max = __cpu_to_le32(2048),
+		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
+		.reserved = __cpu_to_le32(0),
+	},
+
+	/* CE10 target->host HTT */
+	{
+		.pipenum = __cpu_to_le32(10),
+		.pipedir = __cpu_to_le32(PIPEDIR_IN),
+		.nentries = __cpu_to_le32(32),
+		.nbytes_max = __cpu_to_le32(2048),
+		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
+		.reserved = __cpu_to_le32(0),
+	},
+
+	/* CE11 target autonomous qcache memcpy */
+	{
+		.pipenum = __cpu_to_le32(11),
+		.pipedir = __cpu_to_le32(PIPEDIR_IN),
+		.nentries = __cpu_to_le32(32),
+		.nbytes_max = __cpu_to_le32(2048),
+		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
+		.reserved = __cpu_to_le32(0),
+	},
+};
+
 static struct service_to_pipe target_service_to_ce_map_wlan[] = {
 	{
 		__cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VO),
@@ -766,11 +954,47 @@ static int ath10k_snoc_init_pipes(struct ath10k *ar)
 
 static int ath10k_snoc_wlan_enable(struct ath10k *ar)
 {
-	return 0;
+	struct ath10k_tgt_pipe_cfg tgt_cfg[CE_COUNT_MAX];
+	struct ath10k_qmi_wlan_enable_cfg cfg;
+	enum wlfw_driver_mode_enum_v01 mode;
+	int pipe_num;
+
+	for (pipe_num = 0; pipe_num < CE_COUNT_MAX; pipe_num++) {
+		tgt_cfg[pipe_num].pipe_num =
+				target_ce_config_wlan[pipe_num].pipenum;
+		tgt_cfg[pipe_num].pipe_dir =
+				target_ce_config_wlan[pipe_num].pipedir;
+		tgt_cfg[pipe_num].nentries =
+				target_ce_config_wlan[pipe_num].nentries;
+		tgt_cfg[pipe_num].nbytes_max =
+				target_ce_config_wlan[pipe_num].nbytes_max;
+		tgt_cfg[pipe_num].flags =
+				target_ce_config_wlan[pipe_num].flags;
+		tgt_cfg[pipe_num].reserved = 0;
+	}
+
+	cfg.num_ce_tgt_cfg = sizeof(target_ce_config_wlan) /
+				sizeof(struct ath10k_tgt_pipe_cfg);
+	cfg.ce_tgt_cfg = (struct ath10k_tgt_pipe_cfg *)
+		&tgt_cfg;
+	cfg.num_ce_svc_pipe_cfg = sizeof(target_service_to_ce_map_wlan) /
+				  sizeof(struct ath10k_svc_pipe_cfg);
+	cfg.ce_svc_cfg = (struct ath10k_svc_pipe_cfg *)
+		&target_service_to_ce_map_wlan;
+	cfg.num_shadow_reg_cfg = sizeof(target_shadow_reg_cfg_map) /
+					sizeof(struct ath10k_shadow_reg_cfg);
+	cfg.shadow_reg_cfg = (struct ath10k_shadow_reg_cfg *)
+		&target_shadow_reg_cfg_map;
+
+	mode = QMI_WLFW_MISSION_V01;
+
+	return ath10k_qmi_wlan_enable(ar, &cfg, mode,
+				       NULL);
 }
 
 static void ath10k_snoc_wlan_disable(struct ath10k *ar)
 {
+	ath10k_qmi_wlan_disable(ar);
 }
 
 static void ath10k_snoc_hif_power_down(struct ath10k *ar)
@@ -957,6 +1181,32 @@ out:
 	return ret;
 }
 
+int ath10k_snoc_fw_indication(struct ath10k *ar, u64 type)
+{
+	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
+	struct ath10k_bus_params bus_params;
+	int ret;
+
+	switch (type) {
+	case ATH10K_QMI_EVENT_FW_READY_IND:
+		bus_params.dev_type = ATH10K_DEV_TYPE_LL;
+		bus_params.chip_id = ar_snoc->target_info.soc_version;
+		ret = ath10k_core_register(ar, &bus_params);
+		if (ret) {
+			ath10k_err(ar, "failed to register driver core: %d\n",
+				   ret);
+		}
+		break;
+	case ATH10K_QMI_EVENT_FW_DOWN_IND:
+		break;
+	default:
+		ath10k_err(ar, "invalid fw indication: %llx\n", type);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int ath10k_snoc_setup_resource(struct ath10k *ar)
 {
 	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
@@ -1281,9 +1531,9 @@ static int ath10k_snoc_probe(struct platform_device *pdev)
 	struct ath10k_snoc *ar_snoc;
 	struct device *dev;
 	struct ath10k *ar;
+	u32 msa_size;
 	int ret;
 	u32 i;
-	struct ath10k_bus_params bus_params;
 
 	of_id = of_match_device(ath10k_snoc_dt_match, &pdev->dev);
 	if (!of_id) {
@@ -1313,6 +1563,7 @@ static int ath10k_snoc_probe(struct platform_device *pdev)
 	ar_snoc->ar = ar;
 	ar_snoc->ce.bus_ops = &ath10k_snoc_bus_ops;
 	ar->ce_priv = &ar_snoc->ce;
+	msa_size = drv_data->msa_size;
 
 	ret = ath10k_snoc_resource_init(ar);
 	if (ret) {
@@ -1351,12 +1602,10 @@ static int ath10k_snoc_probe(struct platform_device *pdev)
 		goto err_free_irq;
 	}
 
-	bus_params.dev_type = ATH10K_DEV_TYPE_LL;
-	bus_params.chip_id = drv_data->hw_rev;
-	ret = ath10k_core_register(ar, &bus_params);
+	ret = ath10k_qmi_init(ar, msa_size);
 	if (ret) {
-		ath10k_err(ar, "failed to register driver core: %d\n", ret);
-		goto err_hw_power_off;
+		ath10k_warn(ar, "failed to register wlfw qmi client: %d\n", ret);
+		goto err_core_destroy;
 	}
 
 	ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc probe\n");
@@ -1364,9 +1613,6 @@ static int ath10k_snoc_probe(struct platform_device *pdev)
 
 	return 0;
 
-err_hw_power_off:
-	ath10k_hw_power_off(ar);
-
 err_free_irq:
 	ath10k_snoc_free_irq(ar);
 
@@ -1388,6 +1634,7 @@ static int ath10k_snoc_remove(struct platform_device *pdev)
 	ath10k_hw_power_off(ar);
 	ath10k_snoc_free_irq(ar);
 	ath10k_snoc_release_resource(ar);
+	ath10k_qmi_deinit(ar);
 	ath10k_core_destroy(ar);
 
 	return 0;