1 // SPDX-License-Identifier: GPL-2.0-only
3 * Bluetooth supports for Qualcomm Atheros chips
5 * Copyright (c) 2015 The Linux Foundation. All rights reserved.
7 #include <linux/module.h>
8 #include <linux/firmware.h>
10 #include <net/bluetooth/bluetooth.h>
11 #include <net/bluetooth/hci_core.h>
17 int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version)
20 struct edl_event_hdr *edl;
21 struct rome_version *ver;
25 bt_dev_dbg(hdev, "QCA Version Request");
27 cmd = EDL_PATCH_VER_REQ_CMD;
28 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
29 &cmd, HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
32 bt_dev_err(hdev, "Reading QCA version information failed (%d)",
37 if (skb->len != sizeof(*edl) + sizeof(*ver)) {
38 bt_dev_err(hdev, "QCA Version size mismatch len %d", skb->len);
43 edl = (struct edl_event_hdr *)(skb->data);
45 bt_dev_err(hdev, "QCA TLV with no header");
50 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
51 edl->rtype != EDL_APP_VER_RES_EVT) {
52 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
58 ver = (struct rome_version *)(edl->data);
60 BT_DBG("%s: Product:0x%08x", hdev->name, le32_to_cpu(ver->product_id));
61 BT_DBG("%s: Patch :0x%08x", hdev->name, le16_to_cpu(ver->patch_ver));
62 BT_DBG("%s: ROM :0x%08x", hdev->name, le16_to_cpu(ver->rome_ver));
63 BT_DBG("%s: SOC :0x%08x", hdev->name, le32_to_cpu(ver->soc_id));
65 /* QCA chipset version can be decided by patch and SoC
66 * version, combination with upper 2 bytes from SoC
67 * and lower 2 bytes from patch will be used.
69 *soc_version = (le32_to_cpu(ver->soc_id) << 16) |
70 (le16_to_cpu(ver->rome_ver) & 0x0000ffff);
71 if (*soc_version == 0)
77 bt_dev_err(hdev, "QCA Failed to get version (%d)", err);
81 EXPORT_SYMBOL_GPL(qca_read_soc_version);
83 static int qca_send_reset(struct hci_dev *hdev)
88 bt_dev_dbg(hdev, "QCA HCI_RESET");
90 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
93 bt_dev_err(hdev, "QCA Reset failed (%d)", err);
102 static void qca_tlv_check_data(struct rome_config *config,
103 const struct firmware *fw)
109 struct tlv_type_hdr *tlv;
110 struct tlv_type_patch *tlv_patch;
111 struct tlv_type_nvm *tlv_nvm;
113 tlv = (struct tlv_type_hdr *)fw->data;
115 type_len = le32_to_cpu(tlv->type_len);
116 length = (type_len >> 8) & 0x00ffffff;
118 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
119 BT_DBG("Length\t\t : %d bytes", length);
121 config->dnld_mode = ROME_SKIP_EVT_NONE;
123 switch (config->type) {
125 tlv_patch = (struct tlv_type_patch *)tlv->data;
127 /* For Rome version 1.1 to 3.1, all segment commands
128 * are acked by a vendor specific event (VSE).
129 * For Rome >= 3.2, the download mode field indicates
130 * if VSE is skipped by the controller.
131 * In case VSE is skipped, only the last segment is acked.
133 config->dnld_mode = tlv_patch->download_mode;
135 BT_DBG("Total Length : %d bytes",
136 le32_to_cpu(tlv_patch->total_size));
137 BT_DBG("Patch Data Length : %d bytes",
138 le32_to_cpu(tlv_patch->data_length));
139 BT_DBG("Signing Format Version : 0x%x",
140 tlv_patch->format_version);
141 BT_DBG("Signature Algorithm : 0x%x",
142 tlv_patch->signature);
143 BT_DBG("Download mode : 0x%x",
144 tlv_patch->download_mode);
145 BT_DBG("Reserved : 0x%x",
146 tlv_patch->reserved1);
147 BT_DBG("Product ID : 0x%04x",
148 le16_to_cpu(tlv_patch->product_id));
149 BT_DBG("Rom Build Version : 0x%04x",
150 le16_to_cpu(tlv_patch->rom_build));
151 BT_DBG("Patch Version : 0x%04x",
152 le16_to_cpu(tlv_patch->patch_version));
153 BT_DBG("Reserved : 0x%x",
154 le16_to_cpu(tlv_patch->reserved2));
155 BT_DBG("Patch Entry Address : 0x%x",
156 le32_to_cpu(tlv_patch->entry));
162 while (idx < length) {
163 tlv_nvm = (struct tlv_type_nvm *)(data + idx);
165 tag_id = le16_to_cpu(tlv_nvm->tag_id);
166 tag_len = le16_to_cpu(tlv_nvm->tag_len);
168 /* Update NVM tags as needed */
171 /* HCI transport layer parameters
172 * enabling software inband sleep
173 * onto controller side.
175 tlv_nvm->data[0] |= 0x80;
178 tlv_nvm->data[2] = config->user_baud_rate;
182 case EDL_TAG_ID_DEEP_SLEEP:
184 * enabling deep sleep feature on controller.
186 tlv_nvm->data[0] |= 0x01;
191 idx += (sizeof(u16) + sizeof(u16) + 8 + tag_len);
196 BT_ERR("Unknown TLV type %d", config->type);
201 static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
202 const u8 *data, enum rome_tlv_dnld_mode mode)
205 struct edl_event_hdr *edl;
206 struct tlv_seg_resp *tlv_resp;
207 u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];
210 cmd[0] = EDL_PATCH_TLV_REQ_CMD;
212 memcpy(cmd + 2, data, seg_size);
214 if (mode == ROME_SKIP_EVT_VSE_CC || mode == ROME_SKIP_EVT_VSE)
215 return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,
218 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
219 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
222 bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err);
226 if (skb->len != sizeof(*edl) + sizeof(*tlv_resp)) {
227 bt_dev_err(hdev, "QCA TLV response size mismatch");
232 edl = (struct edl_event_hdr *)(skb->data);
234 bt_dev_err(hdev, "TLV with no header");
239 tlv_resp = (struct tlv_seg_resp *)(edl->data);
241 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
242 edl->rtype != EDL_TVL_DNLD_RES_EVT || tlv_resp->result != 0x00) {
243 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)",
244 edl->cresp, edl->rtype, tlv_resp->result);
254 static int qca_download_firmware(struct hci_dev *hdev,
255 struct rome_config *config)
257 const struct firmware *fw;
259 int ret, remain, i = 0;
261 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
263 ret = request_firmware(&fw, config->fwname, &hdev->dev);
265 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
266 config->fwname, ret);
270 qca_tlv_check_data(config, fw);
275 int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain);
277 bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize);
280 /* The last segment is always acked regardless download mode */
281 if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT)
282 config->dnld_mode = ROME_SKIP_EVT_NONE;
284 ret = qca_tlv_send_segment(hdev, segsize, segment,
292 release_firmware(fw);
297 int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
303 cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD;
304 cmd[1] = 0x02; /* TAG ID */
305 cmd[2] = sizeof(bdaddr_t); /* size */
306 memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t));
307 skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd,
308 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
311 bt_dev_err(hdev, "QCA Change address command failed (%d)", err);
319 EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
321 int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
322 enum qca_btsoc_type soc_type, u32 soc_ver)
324 struct rome_config config;
328 bt_dev_dbg(hdev, "QCA setup on UART");
330 config.user_baud_rate = baudrate;
332 /* Download rampatch file */
333 config.type = TLV_TYPE_PATCH;
334 if (qca_is_wcn399x(soc_type)) {
335 /* Firmware files to download are based on ROM version.
336 * ROM version is derived from last two bytes of soc_ver.
338 rom_ver = ((soc_ver & 0x00000f00) >> 0x04) |
339 (soc_ver & 0x0000000f);
340 snprintf(config.fwname, sizeof(config.fwname),
341 "qca/crbtfw%02x.tlv", rom_ver);
343 snprintf(config.fwname, sizeof(config.fwname),
344 "qca/rampatch_%08x.bin", soc_ver);
347 err = qca_download_firmware(hdev, &config);
349 bt_dev_err(hdev, "QCA Failed to download patch (%d)", err);
353 /* Download NVM configuration */
354 config.type = TLV_TYPE_NVM;
355 if (qca_is_wcn399x(soc_type))
356 snprintf(config.fwname, sizeof(config.fwname),
357 "qca/crnv%02x.bin", rom_ver);
359 snprintf(config.fwname, sizeof(config.fwname),
360 "qca/nvm_%08x.bin", soc_ver);
362 err = qca_download_firmware(hdev, &config);
364 bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err);
368 /* Perform HCI reset */
369 err = qca_send_reset(hdev);
371 bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err);
375 bt_dev_info(hdev, "QCA setup on UART is completed");
379 EXPORT_SYMBOL_GPL(qca_uart_setup);
381 int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
386 skb = __hci_cmd_sync_ev(hdev, EDL_WRITE_BD_ADDR_OPCODE, 6, bdaddr,
387 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
390 bt_dev_err(hdev, "QCA Change address cmd failed (%d)", err);
398 EXPORT_SYMBOL_GPL(qca_set_bdaddr);
401 MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>");
402 MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION);
403 MODULE_VERSION(VERSION);
404 MODULE_LICENSE("GPL");