Commit 7d250a06 authored by Balakrishna Godavarthi's avatar Balakrishna Godavarthi Committed by Marcel Holtmann
Browse files

Bluetooth: hci_qca: Add support for Qualcomm Bluetooth SoC WCN3991 



This patch add support for WCN3991 i.e. current values and fw download
support.

Signed-off-by: default avatarBalakrishna Godavarthi <bgodavar@codeaurora.org>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent e303d124

drivers/bluetooth/btqca.c

+53 −15
Original line number Diff line number Diff line
@@ -14,19 +14,33 @@ 


#define VERSION "0.1"



int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version)

int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version,

			 enum qca_btsoc_type soc_type)

{

	struct sk_buff *skb;

	struct edl_event_hdr *edl;

	struct qca_btsoc_version *ver;

	char cmd;

	int err = 0;

	u8 event_type = HCI_EV_VENDOR;

	u8 rlen = sizeof(*edl) + sizeof(*ver);

	u8 rtype = EDL_APP_VER_RES_EVT;



	bt_dev_dbg(hdev, "QCA Version Request");



	/* Unlike other SoC's sending version command response as payload to

	 * VSE event. WCN3991 sends version command response as a payload to

	 * command complete event.

	 */

	if (soc_type == QCA_WCN3991) {

		event_type = 0;

		rlen += 1;

		rtype = EDL_PATCH_VER_REQ_CMD;

	}



	cmd = EDL_PATCH_VER_REQ_CMD;

	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,

				&cmd, HCI_EV_VENDOR, HCI_INIT_TIMEOUT);

				&cmd, event_type, HCI_INIT_TIMEOUT);

	if (IS_ERR(skb)) {

		err = PTR_ERR(skb);

		bt_dev_err(hdev, "Reading QCA version information failed (%d)",
@@ -34,7 +48,7 @@ int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version) 
		return err;

	}



	if (skb->len != sizeof(*edl) + sizeof(*ver)) {

	if (skb->len != rlen) {

		bt_dev_err(hdev, "QCA Version size mismatch len %d", skb->len);

		err = -EILSEQ;

		goto out;
@@ -48,13 +62,16 @@ int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version) 
	}



	if (edl->cresp != EDL_CMD_REQ_RES_EVT ||

	    edl->rtype != EDL_APP_VER_RES_EVT) {

	    edl->rtype != rtype) {

		bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,

			   edl->rtype);

		err = -EIO;

		goto out;

	}



	if (soc_type == QCA_WCN3991)

		memmove(&edl->data, &edl->data[1], sizeof(*ver));



	ver = (struct qca_btsoc_version *)(edl->data);



	BT_DBG("%s: Product:0x%08x", hdev->name, le32_to_cpu(ver->product_id));
@@ -223,13 +240,17 @@ static void qca_tlv_check_data(struct qca_fw_config *config, 
}



static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,

				 const u8 *data, enum qca_tlv_dnld_mode mode)

				const u8 *data, enum qca_tlv_dnld_mode mode,

				enum qca_btsoc_type soc_type)

{

	struct sk_buff *skb;

	struct edl_event_hdr *edl;

	struct tlv_seg_resp *tlv_resp;

	u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];

	int err = 0;

	u8 event_type = HCI_EV_VENDOR;

	u8 rlen = (sizeof(*edl) + sizeof(*tlv_resp));

	u8 rtype = EDL_TVL_DNLD_RES_EVT;



	cmd[0] = EDL_PATCH_TLV_REQ_CMD;

	cmd[1] = seg_size;
@@ -239,15 +260,25 @@ static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size, 
		return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,

				      cmd);



	/* Unlike other SoC's sending version command response as payload to

	 * VSE event. WCN3991 sends version command response as a payload to

	 * command complete event.

	 */

	if (soc_type == QCA_WCN3991) {

		event_type = 0;

		rlen = sizeof(*edl);

		rtype = EDL_PATCH_TLV_REQ_CMD;

	}



	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,

				HCI_EV_VENDOR, HCI_INIT_TIMEOUT);

				event_type, HCI_INIT_TIMEOUT);

	if (IS_ERR(skb)) {

		err = PTR_ERR(skb);

		bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err);

		return err;

	}



	if (skb->len != sizeof(*edl) + sizeof(*tlv_resp)) {

	if (skb->len != rlen) {

		bt_dev_err(hdev, "QCA TLV response size mismatch");

		err = -EILSEQ;

		goto out;
@@ -260,13 +291,19 @@ static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size, 
		goto out;

	}



	tlv_resp = (struct tlv_seg_resp *)(edl->data);

	if (edl->cresp != EDL_CMD_REQ_RES_EVT || edl->rtype != rtype) {

		bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x",

			   edl->cresp, edl->rtype);

		err = -EIO;

	}



	if (edl->cresp != EDL_CMD_REQ_RES_EVT ||

	    edl->rtype != EDL_TVL_DNLD_RES_EVT || tlv_resp->result != 0x00) {

	if (soc_type == QCA_WCN3991)

		goto out;



	tlv_resp = (struct tlv_seg_resp *)(edl->data);

	if (tlv_resp->result) {

		bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)",

			   edl->cresp, edl->rtype, tlv_resp->result);

		err = -EIO;

	}



out:
@@ -301,7 +338,8 @@ static int qca_inject_cmd_complete_event(struct hci_dev *hdev) 
}



static int qca_download_firmware(struct hci_dev *hdev,

				  struct qca_fw_config *config)

				 struct qca_fw_config *config,

				 enum qca_btsoc_type soc_type)

{

	const struct firmware *fw;

	const u8 *segment;
@@ -331,7 +369,7 @@ static int qca_download_firmware(struct hci_dev *hdev, 
			config->dnld_mode = QCA_SKIP_EVT_NONE;



		ret = qca_tlv_send_segment(hdev, segsize, segment,

					    config->dnld_mode);

					   config->dnld_mode, soc_type);

		if (ret)

			goto out;
@@ -405,7 +443,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, 
			 "qca/rampatch_%08x.bin", soc_ver);

	}



	err = qca_download_firmware(hdev, &config);

	err = qca_download_firmware(hdev, &config, soc_type);

	if (err < 0) {

		bt_dev_err(hdev, "QCA Failed to download patch (%d)", err);

		return err;
@@ -426,7 +464,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, 
		snprintf(config.fwname, sizeof(config.fwname),

			 "qca/nvm_%08x.bin", soc_ver);



	err = qca_download_firmware(hdev, &config);

	err = qca_download_firmware(hdev, &config, soc_type);

	if (err < 0) {

		bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err);

		return err;

drivers/bluetooth/btqca.h

+7 −3
Original line number Diff line number Diff line
@@ -125,6 +125,7 @@ enum qca_btsoc_type { 
	QCA_AR3002,

	QCA_ROME,

	QCA_WCN3990,

	QCA_WCN3991,

	QCA_WCN3998,

};
@@ -134,12 +135,14 @@ int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr); 
int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,

		   enum qca_btsoc_type soc_type, u32 soc_ver,

		   const char *firmware_name);

int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version);

int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version,

			 enum qca_btsoc_type);

int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);

int qca_send_pre_shutdown_cmd(struct hci_dev *hdev);

static inline bool qca_is_wcn399x(enum qca_btsoc_type soc_type)

{

	return soc_type == QCA_WCN3990 || soc_type == QCA_WCN3998;

	return soc_type == QCA_WCN3990 || soc_type == QCA_WCN3991 ||

	       soc_type == QCA_WCN3998;

}

#else
@@ -155,7 +158,8 @@ static inline int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, 
	return -EOPNOTSUPP;

}



static inline int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version)

static inline int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version,

				       enum qca_btsoc_type)

{

	return -EOPNOTSUPP;

}

drivers/bluetooth/hci_qca.c

+14 −2
Original line number Diff line number Diff line
@@ -1288,7 +1288,7 @@ static int qca_setup(struct hci_uart *hu) 
		if (ret)

			return ret;



		ret = qca_read_soc_version(hdev, &soc_ver);

		ret = qca_read_soc_version(hdev, &soc_ver, soc_type);

		if (ret)

			return ret;

	} else {
@@ -1308,7 +1308,7 @@ static int qca_setup(struct hci_uart *hu) 


	if (!qca_is_wcn399x(soc_type)) {

		/* Get QCA version information */

		ret = qca_read_soc_version(hdev, &soc_ver);

		ret = qca_read_soc_version(hdev, &soc_ver, soc_type);

		if (ret)

			return ret;

	}
@@ -1366,6 +1366,17 @@ static const struct qca_vreg_data qca_soc_data_wcn3990 = { 
	.num_vregs = 4,

};



static const struct qca_vreg_data qca_soc_data_wcn3991 = {

	.soc_type = QCA_WCN3991,

	.vregs = (struct qca_vreg []) {

		{ "vddio", 15000  },

		{ "vddxo", 80000  },

		{ "vddrf", 300000 },

		{ "vddch0", 450000 },

	},

	.num_vregs = 4,

};



static const struct qca_vreg_data qca_soc_data_wcn3998 = {

	.soc_type = QCA_WCN3998,

	.vregs = (struct qca_vreg []) {
@@ -1662,6 +1673,7 @@ static SIMPLE_DEV_PM_OPS(qca_pm_ops, qca_suspend, qca_resume); 
static const struct of_device_id qca_bluetooth_of_match[] = {

	{ .compatible = "qcom,qca6174-bt" },

	{ .compatible = "qcom,wcn3990-bt", .data = &qca_soc_data_wcn3990},

	{ .compatible = "qcom,wcn3991-bt", .data = &qca_soc_data_wcn3991},

	{ .compatible = "qcom,wcn3998-bt", .data = &qca_soc_data_wcn3998},

	{ /* sentinel */ }

};