tristate
select MT76_CORE
+config MT76x02_USB
+ tristate
+ select MT76_USB
+
config MT76x0_COMMON
tristate
select MT76x02_LIB
config MT76x0U
tristate "MediaTek MT76x0U (USB) support"
select MT76x0_COMMON
- select MT76_USB
+ select MT76x02_USB
depends on MAC80211
depends on USB
help
config MT76x2U
tristate "MediaTek MT76x2U (USB) support"
select MT76x2_COMMON
- select MT76_USB
+ select MT76x02_USB
depends on MAC80211
depends on USB
help
obj-$(CONFIG_MT76_USB) += mt76-usb.o
obj-$(CONFIG_MT76x0_COMMON) += mt76x0/
obj-$(CONFIG_MT76x02_LIB) += mt76x02-lib.o
+obj-$(CONFIG_MT76x02_USB) += mt76x02-usb.o
obj-$(CONFIG_MT76x2_COMMON) += mt76x2-common.o
obj-$(CONFIG_MT76x2E) += mt76x2e.o
obj-$(CONFIG_MT76x2U) += mt76x2u.o
mt76x02-lib-y := mt76x02_util.o mt76x02_mac.o
+mt76x02-usb-y := mt76x02_usb_mcu.o
+
mt76x2-common-y := \
mt76x2_eeprom.o mt76x2_tx_common.o mt76x2_mac_common.o \
mt76x2_init_common.o mt76x2_common.o mt76x2_phy_common.o \
void mt76u_queues_deinit(struct mt76_dev *dev);
int mt76u_skb_dma_info(struct sk_buff *skb, int port, u32 flags);
-int mt76u_mcu_fw_send_data(struct mt76_dev *dev, const void *data,
- int data_len, u32 max_payload, u32 offset);
void mt76u_mcu_complete_urb(struct urb *urb);
-void mt76u_mcu_fw_reset(struct mt76_dev *dev);
int mt76u_mcu_init_rx(struct mt76_dev *dev);
void mt76u_mcu_deinit(struct mt76_dev *dev);
-void mt76u_init_mcu_ops(struct mt76_dev *dev);
#endif
#include "mcu.h"
#include "usb.h"
#include "trace.h"
+#include "../mt76x02_usb.h"
#define MCU_FW_URB_MAX_PAYLOAD 0x38f8
#define MCU_FW_URB_SIZE (MCU_FW_URB_MAX_PAYLOAD + 12)
ilm_len = le32_to_cpu(fw->hdr.ilm_len) - sizeof(fw->ivb);
dev_dbg(dev->mt76.dev, "loading FW - ILM %u + IVB %zu\n",
ilm_len, sizeof(fw->ivb));
- ret = mt76u_mcu_fw_send_data(&dev->mt76, fw->ilm, ilm_len,
- MCU_FW_URB_MAX_PAYLOAD,
- sizeof(fw->ivb));
+ ret = mt76x02u_mcu_fw_send_data(&dev->mt76, fw->ilm, ilm_len,
+ MCU_FW_URB_MAX_PAYLOAD,
+ sizeof(fw->ivb));
if (ret)
goto error;
dlm_len = le32_to_cpu(fw->hdr.dlm_len);
dev_dbg(dev->mt76.dev, "loading FW - DLM %u\n", dlm_len);
- ret = mt76u_mcu_fw_send_data(&dev->mt76, fw->ilm + ilm_len,
- dlm_len, MCU_FW_URB_MAX_PAYLOAD,
- MT_MCU_DLM_OFFSET);
+ ret = mt76x02u_mcu_fw_send_data(&dev->mt76, fw->ilm + ilm_len,
+ dlm_len, MCU_FW_URB_MAX_PAYLOAD,
+ MT_MCU_DLM_OFFSET);
if (ret)
goto error;
mt76_set(dev, MT_USB_DMA_CFG, (MT_USB_DMA_CFG_RX_BULK_EN |
MT_USB_DMA_CFG_TX_BULK_EN) |
FIELD_PREP(MT_USB_DMA_CFG_RX_BULK_AGG_TOUT, 0x20));
- mt76u_mcu_fw_reset(&dev->mt76);
+ mt76x02u_mcu_fw_reset(&dev->mt76);
msleep(5);
/*
mt76x0_rmw(dev, MT_PBF_CFG, 0, (MT_PBF_CFG_TX0Q_EN |
#include "usb.h"
#include "trace.h"
#include "../mt76x02_util.h"
+#include "../mt76x02_usb.h"
static struct usb_device_id mt76x0_device_table[] = {
{ USB_DEVICE(0x148F, 0x7610) }, /* MT7610U */
usb_set_intfdata(usb_intf, dev);
+ mt76x02u_init_mcu(&dev->mt76);
ret = mt76u_init(&dev->mt76, usb_intf);
if (ret)
goto err;
--- /dev/null
+/*
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ *
+ * 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.
+ */
+
+#ifndef __MT76x02_USB_H
+#define __MT76x0x_USB_H
+
+#include "mt76.h"
+
+void mt76x02u_init_mcu(struct mt76_dev *dev);
+void mt76x02u_mcu_fw_reset(struct mt76_dev *dev);
+int mt76x02u_mcu_fw_send_data(struct mt76_dev *dev, const void *data,
+ int data_len, u32 max_payload, u32 offset);
+
+#endif /* __MT76x02_USB_H */
--- /dev/null
+/*
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ *
+ * 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/firmware.h>
+
+#include "mt76.h"
+#include "dma.h"
+#include "mt76x02_mcu.h"
+
+#define MT_CMD_HDR_LEN 4
+
+#define MT_FCE_DMA_ADDR 0x0230
+#define MT_FCE_DMA_LEN 0x0234
+
+#define MT_TX_CPU_FROM_FCE_CPU_DESC_IDX 0x09a8
+
+static struct sk_buff *
+mt76x02u_mcu_msg_alloc(const void *data, int len)
+{
+ struct sk_buff *skb;
+
+ skb = alloc_skb(MT_CMD_HDR_LEN + len + 8, GFP_KERNEL);
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, MT_CMD_HDR_LEN);
+ skb_put_data(skb, data, len);
+
+ return skb;
+}
+
+static void
+mt76x02u_multiple_mcu_reads(struct mt76_dev *dev, u8 *data, int len)
+{
+ struct mt76_usb *usb = &dev->usb;
+ u32 reg, val;
+ int i;
+
+ if (usb->mcu.burst) {
+ WARN_ON_ONCE(len / 4 != usb->mcu.rp_len);
+
+ reg = usb->mcu.rp[0].reg - usb->mcu.base;
+ for (i = 0; i < usb->mcu.rp_len; i++) {
+ val = get_unaligned_le32(data + 4 * i);
+ usb->mcu.rp[i].reg = reg++;
+ usb->mcu.rp[i].value = val;
+ }
+ } else {
+ WARN_ON_ONCE(len / 8 != usb->mcu.rp_len);
+
+ for (i = 0; i < usb->mcu.rp_len; i++) {
+ reg = get_unaligned_le32(data + 8 * i) -
+ usb->mcu.base;
+ val = get_unaligned_le32(data + 8 * i + 4);
+
+ WARN_ON_ONCE(usb->mcu.rp[i].reg != reg);
+ usb->mcu.rp[i].value = val;
+ }
+ }
+}
+
+static int mt76x02u_mcu_wait_resp(struct mt76_dev *dev, u8 seq)
+{
+ struct mt76_usb *usb = &dev->usb;
+ struct mt76u_buf *buf = &usb->mcu.res;
+ struct urb *urb = buf->urb;
+ int i, ret;
+ u32 rxfce;
+ u8 *data;
+
+ for (i = 0; i < 5; i++) {
+ if (!wait_for_completion_timeout(&usb->mcu.cmpl,
+ msecs_to_jiffies(300)))
+ continue;
+
+ if (urb->status)
+ return -EIO;
+
+ data = sg_virt(&urb->sg[0]);
+ if (usb->mcu.rp)
+ mt76x02u_multiple_mcu_reads(dev, data + 4,
+ urb->actual_length - 8);
+
+ rxfce = get_unaligned_le32(data);
+ ret = mt76u_submit_buf(dev, USB_DIR_IN,
+ MT_EP_IN_CMD_RESP,
+ buf, GFP_KERNEL,
+ mt76u_mcu_complete_urb,
+ &usb->mcu.cmpl);
+ if (ret)
+ return ret;
+
+ if (seq == FIELD_GET(MT_RX_FCE_INFO_CMD_SEQ, rxfce) &&
+ FIELD_GET(MT_RX_FCE_INFO_EVT_TYPE, rxfce) == EVT_CMD_DONE)
+ return 0;
+
+ dev_err(dev->dev, "error: MCU resp evt:%lx seq:%hhx-%lx\n",
+ FIELD_GET(MT_RX_FCE_INFO_EVT_TYPE, rxfce),
+ seq, FIELD_GET(MT_RX_FCE_INFO_CMD_SEQ, rxfce));
+ }
+
+ dev_err(dev->dev, "error: %s timed out\n", __func__);
+ return -ETIMEDOUT;
+}
+
+static int
+__mt76x02u_mcu_send_msg(struct mt76_dev *dev, struct sk_buff *skb,
+ int cmd, bool wait_resp)
+{
+ struct usb_interface *intf = to_usb_interface(dev->dev);
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct mt76_usb *usb = &dev->usb;
+ unsigned int pipe;
+ int ret, sent;
+ u8 seq = 0;
+ u32 info;
+
+ if (!skb)
+ return -EINVAL;
+
+ if (test_bit(MT76_REMOVED, &dev->state))
+ return 0;
+
+ pipe = usb_sndbulkpipe(udev, usb->out_ep[MT_EP_OUT_INBAND_CMD]);
+ if (wait_resp) {
+ seq = ++usb->mcu.msg_seq & 0xf;
+ if (!seq)
+ seq = ++usb->mcu.msg_seq & 0xf;
+ }
+
+ info = FIELD_PREP(MT_MCU_MSG_CMD_SEQ, seq) |
+ FIELD_PREP(MT_MCU_MSG_CMD_TYPE, cmd) |
+ MT_MCU_MSG_TYPE_CMD;
+ ret = mt76u_skb_dma_info(skb, CPU_TX_PORT, info);
+ if (ret)
+ return ret;
+
+ ret = usb_bulk_msg(udev, pipe, skb->data, skb->len, &sent, 500);
+ if (ret)
+ return ret;
+
+ if (wait_resp)
+ ret = mt76x02u_mcu_wait_resp(dev, seq);
+
+ consume_skb(skb);
+
+ return ret;
+}
+
+static int
+mt76x02u_mcu_send_msg(struct mt76_dev *dev, struct sk_buff *skb,
+ int cmd, bool wait_resp)
+{
+ struct mt76_usb *usb = &dev->usb;
+ int err;
+
+ mutex_lock(&usb->mcu.mutex);
+ err = __mt76x02u_mcu_send_msg(dev, skb, cmd, wait_resp);
+ mutex_unlock(&usb->mcu.mutex);
+
+ return err;
+}
+
+static inline void skb_put_le32(struct sk_buff *skb, u32 val)
+{
+ put_unaligned_le32(val, skb_put(skb, 4));
+}
+
+static int
+mt76x02u_mcu_wr_rp(struct mt76_dev *dev, u32 base,
+ const struct mt76_reg_pair *data, int n)
+{
+ const int CMD_RANDOM_WRITE = 12;
+ const int max_vals_per_cmd = MT_INBAND_PACKET_MAX_LEN / 8;
+ struct sk_buff *skb;
+ int cnt, i, ret;
+
+ if (!n)
+ return 0;
+
+ cnt = min(max_vals_per_cmd, n);
+
+ skb = alloc_skb(cnt * 8 + MT_DMA_HDR_LEN + 4, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+ skb_reserve(skb, MT_DMA_HDR_LEN);
+
+ for (i = 0; i < cnt; i++) {
+ skb_put_le32(skb, base + data[i].reg);
+ skb_put_le32(skb, data[i].value);
+ }
+
+ ret = mt76x02u_mcu_send_msg(dev, skb, CMD_RANDOM_WRITE, cnt == n);
+ if (ret)
+ return ret;
+
+ return mt76x02u_mcu_wr_rp(dev, base, data + cnt, n - cnt);
+}
+
+static int
+mt76x02u_mcu_rd_rp(struct mt76_dev *dev, u32 base,
+ struct mt76_reg_pair *data, int n)
+{
+ const int CMD_RANDOM_READ = 10;
+ const int max_vals_per_cmd = MT_INBAND_PACKET_MAX_LEN / 8;
+ struct mt76_usb *usb = &dev->usb;
+ struct sk_buff *skb;
+ int cnt, i, ret;
+
+ if (!n)
+ return 0;
+
+ cnt = min(max_vals_per_cmd, n);
+ if (cnt != n)
+ return -EINVAL;
+
+ skb = alloc_skb(cnt * 8 + MT_DMA_HDR_LEN + 4, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+ skb_reserve(skb, MT_DMA_HDR_LEN);
+
+ for (i = 0; i < cnt; i++) {
+ skb_put_le32(skb, base + data[i].reg);
+ skb_put_le32(skb, data[i].value);
+ }
+
+ mutex_lock(&usb->mcu.mutex);
+
+ usb->mcu.rp = data;
+ usb->mcu.rp_len = n;
+ usb->mcu.base = base;
+ usb->mcu.burst = false;
+
+ ret = __mt76x02u_mcu_send_msg(dev, skb, CMD_RANDOM_READ, true);
+
+ usb->mcu.rp = NULL;
+
+ mutex_unlock(&usb->mcu.mutex);
+
+ return ret;
+}
+
+void mt76x02u_mcu_fw_reset(struct mt76_dev *dev)
+{
+ mt76u_vendor_request(dev, MT_VEND_DEV_MODE,
+ USB_DIR_OUT | USB_TYPE_VENDOR,
+ 0x1, 0, NULL, 0);
+}
+EXPORT_SYMBOL_GPL(mt76x02u_mcu_fw_reset);
+
+static int
+__mt76x02u_mcu_fw_send_data(struct mt76_dev *dev, struct mt76u_buf *buf,
+ const void *fw_data, int len, u32 dst_addr)
+{
+ u8 *data = sg_virt(&buf->urb->sg[0]);
+ DECLARE_COMPLETION_ONSTACK(cmpl);
+ __le32 info;
+ u32 val;
+ int err;
+
+ info = cpu_to_le32(FIELD_PREP(MT_MCU_MSG_PORT, CPU_TX_PORT) |
+ FIELD_PREP(MT_MCU_MSG_LEN, len) |
+ MT_MCU_MSG_TYPE_CMD);
+
+ memcpy(data, &info, sizeof(info));
+ memcpy(data + sizeof(info), fw_data, len);
+ memset(data + sizeof(info) + len, 0, 4);
+
+ mt76u_single_wr(dev, MT_VEND_WRITE_FCE,
+ MT_FCE_DMA_ADDR, dst_addr);
+ len = roundup(len, 4);
+ mt76u_single_wr(dev, MT_VEND_WRITE_FCE,
+ MT_FCE_DMA_LEN, len << 16);
+
+ buf->len = MT_CMD_HDR_LEN + len + sizeof(info);
+ err = mt76u_submit_buf(dev, USB_DIR_OUT,
+ MT_EP_OUT_INBAND_CMD,
+ buf, GFP_KERNEL,
+ mt76u_mcu_complete_urb, &cmpl);
+ if (err < 0)
+ return err;
+
+ if (!wait_for_completion_timeout(&cmpl,
+ msecs_to_jiffies(1000))) {
+ dev_err(dev->dev, "firmware upload timed out\n");
+ usb_kill_urb(buf->urb);
+ return -ETIMEDOUT;
+ }
+
+ if (mt76u_urb_error(buf->urb)) {
+ dev_err(dev->dev, "firmware upload failed: %d\n",
+ buf->urb->status);
+ return buf->urb->status;
+ }
+
+ val = mt76u_rr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX);
+ val++;
+ mt76u_wr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX, val);
+
+ return 0;
+}
+
+int mt76x02u_mcu_fw_send_data(struct mt76_dev *dev, const void *data,
+ int data_len, u32 max_payload, u32 offset)
+{
+ int err, len, pos = 0, max_len = max_payload - 8;
+ struct mt76u_buf buf;
+
+ err = mt76u_buf_alloc(dev, &buf, 1, max_payload, max_payload,
+ GFP_KERNEL);
+ if (err < 0)
+ return err;
+
+ while (data_len > 0) {
+ len = min_t(int, data_len, max_len);
+ err = __mt76x02u_mcu_fw_send_data(dev, &buf, data + pos,
+ len, offset + pos);
+ if (err < 0)
+ break;
+
+ data_len -= len;
+ pos += len;
+ usleep_range(5000, 10000);
+ }
+ mt76u_buf_free(&buf);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(mt76x02u_mcu_fw_send_data);
+
+void mt76x02u_init_mcu(struct mt76_dev *dev)
+{
+ static const struct mt76_mcu_ops mt76x02u_mcu_ops = {
+ .mcu_msg_alloc = mt76x02u_mcu_msg_alloc,
+ .mcu_send_msg = mt76x02u_mcu_send_msg,
+ .mcu_wr_rp = mt76x02u_mcu_wr_rp,
+ .mcu_rd_rp = mt76x02u_mcu_rd_rp,
+ };
+
+ dev->mcu_ops = &mt76x02u_mcu_ops;
+}
+EXPORT_SYMBOL_GPL(mt76x02u_init_mcu);
+
+MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
+MODULE_LICENSE("Dual BSD/GPL");
#include <linux/kernel.h>
#include <linux/module.h>
+#include "mt76x02_usb.h"
#include "mt76x2u.h"
static const struct usb_device_id mt76x2u_device_table[] = {
udev = usb_get_dev(udev);
usb_reset_device(udev);
+ mt76x02u_init_mcu(&dev->mt76);
err = mt76u_init(&dev->mt76, intf);
if (err < 0)
goto err;
#include "mt76x2u.h"
#include "mt76x2_eeprom.h"
+#include "mt76x02_usb.h"
#define MT_CMD_HDR_LEN 4
mt76_wr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG), val);
/* vendor reset */
- mt76u_mcu_fw_reset(&dev->mt76);
+ mt76x02u_mcu_fw_reset(&dev->mt76);
usleep_range(5000, 10000);
/* enable FCE to send in-band cmd */
/* FCE skip_fs_en */
mt76_wr(dev, MT_FCE_SKIP_FS, 0x3);
- err = mt76u_mcu_fw_send_data(&dev->mt76, fw->data + sizeof(*hdr),
- fw->size - sizeof(*hdr),
- MCU_ROM_PATCH_MAX_PAYLOAD,
- MT76U_MCU_ROM_PATCH_OFFSET);
+ err = mt76x02u_mcu_fw_send_data(&dev->mt76, fw->data + sizeof(*hdr),
+ fw->size - sizeof(*hdr),
+ MCU_ROM_PATCH_MAX_PAYLOAD,
+ MT76U_MCU_ROM_PATCH_OFFSET);
if (err < 0) {
err = -EIO;
goto out;
dev_info(dev->mt76.dev, "Build Time: %.16s\n", hdr->build_time);
/* vendor reset */
- mt76u_mcu_fw_reset(&dev->mt76);
+ mt76x02u_mcu_fw_reset(&dev->mt76);
usleep_range(5000, 10000);
/* enable USB_DMA_CFG */
mt76_wr(dev, MT_FCE_SKIP_FS, 0x3);
/* load ILM */
- err = mt76u_mcu_fw_send_data(&dev->mt76, fw->data + sizeof(*hdr),
- ilm_len, MCU_FW_URB_MAX_PAYLOAD,
- MT76U_MCU_ILM_OFFSET);
+ err = mt76x02u_mcu_fw_send_data(&dev->mt76, fw->data + sizeof(*hdr),
+ ilm_len, MCU_FW_URB_MAX_PAYLOAD,
+ MT76U_MCU_ILM_OFFSET);
if (err < 0) {
err = -EIO;
goto out;
/* load DLM */
if (mt76xx_rev(dev) >= MT76XX_REV_E3)
dlm_offset += 0x800;
- err = mt76u_mcu_fw_send_data(&dev->mt76,
- fw->data + sizeof(*hdr) + ilm_len,
- dlm_len, MCU_FW_URB_MAX_PAYLOAD,
- dlm_offset);
+ err = mt76x02u_mcu_fw_send_data(&dev->mt76,
+ fw->data + sizeof(*hdr) + ilm_len,
+ dlm_len, MCU_FW_URB_MAX_PAYLOAD,
+ dlm_offset);
if (err < 0) {
err = -EIO;
goto out;
return ret;
}
+EXPORT_SYMBOL_GPL(mt76u_rr);
/* should be called with usb_ctrl_mtx locked */
static void __mt76u_wr(struct mt76_dev *dev, u32 addr, u32 val)
__mt76u_wr(dev, addr, val);
mutex_unlock(&dev->usb.usb_ctrl_mtx);
}
+EXPORT_SYMBOL_GPL(mt76u_wr);
static u32 mt76u_rmw(struct mt76_dev *dev, u32 addr,
u32 mask, u32 val)
mutex_init(&usb->usb_ctrl_mtx);
dev->bus = &mt76u_ops;
dev->queue_ops = &usb_queue_ops;
- mt76u_init_mcu_ops(dev);
return mt76u_set_endpoints(intf, usb);
}
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-#include <linux/firmware.h>
-
#include "mt76.h"
-#include "dma.h"
-
-#define MT_CMD_HDR_LEN 4
-
-#define MT_FCE_DMA_ADDR 0x0230
-#define MT_FCE_DMA_LEN 0x0234
-
-#define MT_TX_CPU_FROM_FCE_CPU_DESC_IDX 0x09a8
-
-#define MT_INBAND_PACKET_MAX_LEN 192
-
-static struct sk_buff *
-mt76u_mcu_msg_alloc(const void *data, int len)
-{
- struct sk_buff *skb;
-
- skb = alloc_skb(MT_CMD_HDR_LEN + len + 8, GFP_KERNEL);
- if (!skb)
- return NULL;
-
- skb_reserve(skb, MT_CMD_HDR_LEN);
- skb_put_data(skb, data, len);
-
- return skb;
-}
void mt76u_mcu_complete_urb(struct urb *urb)
{
}
EXPORT_SYMBOL_GPL(mt76u_mcu_complete_urb);
-static void
-mt76u_multiple_mcu_reads(struct mt76_dev *dev, u8 *data,
- int len)
-{
- struct mt76_usb *usb = &dev->usb;
- u32 reg, val;
- int i;
-
- if (usb->mcu.burst) {
- WARN_ON_ONCE(len / 4 != usb->mcu.rp_len);
-
- reg = usb->mcu.rp[0].reg - usb->mcu.base;
- for (i = 0; i < usb->mcu.rp_len; i++) {
- val = get_unaligned_le32(data + 4 * i);
- usb->mcu.rp[i].reg = reg++;
- usb->mcu.rp[i].value = val;
- }
- } else {
- WARN_ON_ONCE(len / 8 != usb->mcu.rp_len);
-
- for (i = 0; i < usb->mcu.rp_len; i++) {
- reg = get_unaligned_le32(data + 8 * i) -
- usb->mcu.base;
- val = get_unaligned_le32(data + 8 * i + 4);
-
- WARN_ON_ONCE(usb->mcu.rp[i].reg != reg);
- usb->mcu.rp[i].value = val;
- }
- }
-}
-
-static int mt76u_mcu_wait_resp(struct mt76_dev *dev, u8 seq)
-{
- struct mt76_usb *usb = &dev->usb;
- struct mt76u_buf *buf = &usb->mcu.res;
- int i, ret;
- u32 rxfce;
- u8 *data;
-
- for (i = 0; i < 5; i++) {
- if (!wait_for_completion_timeout(&usb->mcu.cmpl,
- msecs_to_jiffies(300)))
- continue;
-
- if (buf->urb->status)
- return -EIO;
-
- data = sg_virt(&buf->urb->sg[0]);
- if (usb->mcu.rp)
- mt76u_multiple_mcu_reads(dev, data + 4,
- buf->urb->actual_length - 8);
-
- rxfce = get_unaligned_le32(data);
- ret = mt76u_submit_buf(dev, USB_DIR_IN,
- MT_EP_IN_CMD_RESP,
- buf, GFP_KERNEL,
- mt76u_mcu_complete_urb,
- &usb->mcu.cmpl);
- if (ret)
- return ret;
-
- if (seq == FIELD_GET(MT_RX_FCE_INFO_CMD_SEQ, rxfce) &&
- FIELD_GET(MT_RX_FCE_INFO_EVT_TYPE, rxfce) == EVT_CMD_DONE)
- return 0;
-
- dev_err(dev->dev, "error: MCU resp evt:%lx seq:%hhx-%lx\n",
- FIELD_GET(MT_RX_FCE_INFO_EVT_TYPE, rxfce),
- seq, FIELD_GET(MT_RX_FCE_INFO_CMD_SEQ, rxfce));
- }
-
- dev_err(dev->dev, "error: %s timed out\n", __func__);
- return -ETIMEDOUT;
-}
-
-static int
-__mt76u_mcu_send_msg(struct mt76_dev *dev, struct sk_buff *skb,
- int cmd, bool wait_resp)
-{
- struct usb_interface *intf = to_usb_interface(dev->dev);
- struct usb_device *udev = interface_to_usbdev(intf);
- struct mt76_usb *usb = &dev->usb;
- unsigned int pipe;
- int ret, sent;
- u8 seq = 0;
- u32 info;
-
- if (test_bit(MT76_REMOVED, &dev->state))
- return 0;
-
- pipe = usb_sndbulkpipe(udev, usb->out_ep[MT_EP_OUT_INBAND_CMD]);
- if (wait_resp) {
- seq = ++usb->mcu.msg_seq & 0xf;
- if (!seq)
- seq = ++usb->mcu.msg_seq & 0xf;
- }
-
- info = FIELD_PREP(MT_MCU_MSG_CMD_SEQ, seq) |
- FIELD_PREP(MT_MCU_MSG_CMD_TYPE, cmd) |
- MT_MCU_MSG_TYPE_CMD;
- ret = mt76u_skb_dma_info(skb, CPU_TX_PORT, info);
- if (ret)
- return ret;
-
- ret = usb_bulk_msg(udev, pipe, skb->data, skb->len, &sent, 500);
- if (ret)
- return ret;
-
- if (wait_resp)
- ret = mt76u_mcu_wait_resp(dev, seq);
-
- consume_skb(skb);
-
- return ret;
-}
-
-static int
-mt76u_mcu_send_msg(struct mt76_dev *dev, struct sk_buff *skb,
- int cmd, bool wait_resp)
-{
- struct mt76_usb *usb = &dev->usb;
- int err;
-
- mutex_lock(&usb->mcu.mutex);
- err = __mt76u_mcu_send_msg(dev, skb, cmd, wait_resp);
- mutex_unlock(&usb->mcu.mutex);
-
- return err;
-}
-
-static inline void skb_put_le32(struct sk_buff *skb, u32 val)
-{
- put_unaligned_le32(val, skb_put(skb, 4));
-}
-
-static int
-mt76u_mcu_wr_rp(struct mt76_dev *dev, u32 base,
- const struct mt76_reg_pair *data, int n)
-{
- const int CMD_RANDOM_WRITE = 12;
- const int max_vals_per_cmd = MT_INBAND_PACKET_MAX_LEN / 8;
- struct sk_buff *skb;
- int cnt, i, ret;
-
- if (!n)
- return 0;
-
- cnt = min(max_vals_per_cmd, n);
-
- skb = alloc_skb(cnt * 8 + MT_DMA_HDR_LEN + 4, GFP_KERNEL);
- if (!skb)
- return -ENOMEM;
- skb_reserve(skb, MT_DMA_HDR_LEN);
-
- for (i = 0; i < cnt; i++) {
- skb_put_le32(skb, base + data[i].reg);
- skb_put_le32(skb, data[i].value);
- }
-
- ret = mt76u_mcu_send_msg(dev, skb, CMD_RANDOM_WRITE, cnt == n);
- if (ret)
- return ret;
-
- return mt76u_mcu_wr_rp(dev, base, data + cnt, n - cnt);
-}
-
-static int
-mt76u_mcu_rd_rp(struct mt76_dev *dev, u32 base,
- struct mt76_reg_pair *data, int n)
-{
- const int CMD_RANDOM_READ = 10;
- const int max_vals_per_cmd = MT_INBAND_PACKET_MAX_LEN / 8;
- struct mt76_usb *usb = &dev->usb;
- struct sk_buff *skb;
- int cnt, i, ret;
-
- if (!n)
- return 0;
-
- cnt = min(max_vals_per_cmd, n);
- if (cnt != n)
- return -EINVAL;
-
- skb = alloc_skb(cnt * 8 + MT_DMA_HDR_LEN + 4, GFP_KERNEL);
- if (!skb)
- return -ENOMEM;
- skb_reserve(skb, MT_DMA_HDR_LEN);
-
- for (i = 0; i < cnt; i++) {
- skb_put_le32(skb, base + data[i].reg);
- skb_put_le32(skb, data[i].value);
- }
-
- mutex_lock(&usb->mcu.mutex);
-
- usb->mcu.rp = data;
- usb->mcu.rp_len = n;
- usb->mcu.base = base;
- usb->mcu.burst = false;
-
- ret = __mt76u_mcu_send_msg(dev, skb, CMD_RANDOM_READ, true);
-
- usb->mcu.rp = NULL;
-
- mutex_unlock(&usb->mcu.mutex);
-
- return ret;
-}
-
-void mt76u_mcu_fw_reset(struct mt76_dev *dev)
-{
- mt76u_vendor_request(dev, MT_VEND_DEV_MODE,
- USB_DIR_OUT | USB_TYPE_VENDOR,
- 0x1, 0, NULL, 0);
-}
-EXPORT_SYMBOL_GPL(mt76u_mcu_fw_reset);
-
-static int
-__mt76u_mcu_fw_send_data(struct mt76_dev *dev, struct mt76u_buf *buf,
- const void *fw_data, int len, u32 dst_addr)
-{
- u8 *data = sg_virt(&buf->urb->sg[0]);
- DECLARE_COMPLETION_ONSTACK(cmpl);
- __le32 info;
- u32 val;
- int err;
-
- info = cpu_to_le32(FIELD_PREP(MT_MCU_MSG_PORT, CPU_TX_PORT) |
- FIELD_PREP(MT_MCU_MSG_LEN, len) |
- MT_MCU_MSG_TYPE_CMD);
-
- memcpy(data, &info, sizeof(info));
- memcpy(data + sizeof(info), fw_data, len);
- memset(data + sizeof(info) + len, 0, 4);
-
- mt76u_single_wr(dev, MT_VEND_WRITE_FCE,
- MT_FCE_DMA_ADDR, dst_addr);
- len = roundup(len, 4);
- mt76u_single_wr(dev, MT_VEND_WRITE_FCE,
- MT_FCE_DMA_LEN, len << 16);
-
- buf->len = MT_CMD_HDR_LEN + len + sizeof(info);
- err = mt76u_submit_buf(dev, USB_DIR_OUT,
- MT_EP_OUT_INBAND_CMD,
- buf, GFP_KERNEL,
- mt76u_mcu_complete_urb, &cmpl);
- if (err < 0)
- return err;
-
- if (!wait_for_completion_timeout(&cmpl,
- msecs_to_jiffies(1000))) {
- dev_err(dev->dev, "firmware upload timed out\n");
- usb_kill_urb(buf->urb);
- return -ETIMEDOUT;
- }
-
- if (mt76u_urb_error(buf->urb)) {
- dev_err(dev->dev, "firmware upload failed: %d\n",
- buf->urb->status);
- return buf->urb->status;
- }
-
- val = mt76u_rr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX);
- val++;
- mt76u_wr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX, val);
-
- return 0;
-}
-
-int mt76u_mcu_fw_send_data(struct mt76_dev *dev, const void *data,
- int data_len, u32 max_payload, u32 offset)
-{
- int err, len, pos = 0, max_len = max_payload - 8;
- struct mt76u_buf buf;
-
- err = mt76u_buf_alloc(dev, &buf, 1, max_payload, max_payload,
- GFP_KERNEL);
- if (err < 0)
- return err;
-
- while (data_len > 0) {
- len = min_t(int, data_len, max_len);
- err = __mt76u_mcu_fw_send_data(dev, &buf, data + pos,
- len, offset + pos);
- if (err < 0)
- break;
-
- data_len -= len;
- pos += len;
- usleep_range(5000, 10000);
- }
- mt76u_buf_free(&buf);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(mt76u_mcu_fw_send_data);
-
int mt76u_mcu_init_rx(struct mt76_dev *dev)
{
struct mt76_usb *usb = &dev->usb;
mt76u_buf_free(&usb->mcu.res);
}
EXPORT_SYMBOL_GPL(mt76u_mcu_deinit);
-
-void mt76u_init_mcu_ops(struct mt76_dev *dev)
-{
- static const struct mt76_mcu_ops mt76u_mcu_ops = {
- .mcu_msg_alloc = mt76u_mcu_msg_alloc,
- .mcu_send_msg = mt76u_mcu_send_msg,
- .mcu_wr_rp = mt76u_mcu_wr_rp,
- .mcu_rd_rp = mt76u_mcu_rd_rp,
- };
-
- dev->mcu_ops = &mt76u_mcu_ops;
-}
projects / openwrt / staging / blogic.git / commitdiff