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path: root/drivers/net/wireless/purelifi/plfxlc/usb.h
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Diffstat (limited to 'drivers/net/wireless/purelifi/plfxlc/usb.h')
-rw-r--r--drivers/net/wireless/purelifi/plfxlc/usb.h198
1 files changed, 198 insertions, 0 deletions
diff --git a/drivers/net/wireless/purelifi/plfxlc/usb.h b/drivers/net/wireless/purelifi/plfxlc/usb.h
new file mode 100644
index 000000000000..ba2defd593bd
--- /dev/null
+++ b/drivers/net/wireless/purelifi/plfxlc/usb.h
@@ -0,0 +1,198 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2021 pureLiFi
+ */
+
+#ifndef PLFXLC_USB_H
+#define PLFXLC_USB_H
+
+#include <linux/completion.h>
+#include <linux/netdevice.h>
+#include <linux/spinlock.h>
+#include <linux/skbuff.h>
+#include <linux/usb.h>
+
+#include "intf.h"
+
+#define USB_BULK_MSG_TIMEOUT_MS 2000
+
+#define PURELIFI_X_VENDOR_ID_0 0x16C1
+#define PURELIFI_X_PRODUCT_ID_0 0x1CDE
+#define PURELIFI_XC_VENDOR_ID_0 0x2EF5
+#define PURELIFI_XC_PRODUCT_ID_0 0x0008
+#define PURELIFI_XL_VENDOR_ID_0 0x2EF5
+#define PURELIFI_XL_PRODUCT_ID_0 0x000A /* Station */
+
+#define PLF_FPGA_STATUS_LEN 2
+#define PLF_FPGA_STATE_LEN 9
+#define PLF_BULK_TLEN 16384
+#define PLF_FPGA_MG 6 /* Magic check */
+#define PLF_XL_BUF_LEN 64
+#define PLF_MSG_STATUS_OFFSET 7
+
+#define PLF_USB_TIMEOUT 1000
+#define PLF_MSLEEP_TIME 200
+
+#define PURELIFI_URB_RETRY_MAX 5
+
+#define plfxlc_usb_dev(usb) (&(usb)->intf->dev)
+
+/* Tx retry backoff timer (in milliseconds) */
+#define TX_RETRY_BACKOFF_MS 10
+#define STA_QUEUE_CLEANUP_MS 5000
+
+/* Tx retry backoff timer (in jiffies) */
+#define TX_RETRY_BACKOFF_JIFF ((TX_RETRY_BACKOFF_MS * HZ) / 1000)
+#define STA_QUEUE_CLEANUP_JIFF ((STA_QUEUE_CLEANUP_MS * HZ) / 1000)
+
+/* Ensures that MAX_TRANSFER_SIZE is even. */
+#define MAX_TRANSFER_SIZE (USB_MAX_TRANSFER_SIZE & ~1)
+#define plfxlc_urb_dev(urb) (&(urb)->dev->dev)
+
+#define STATION_FIFO_ALMOST_FULL_MESSAGE 0
+#define STATION_FIFO_ALMOST_FULL_NOT_MESSAGE 1
+#define STATION_CONNECT_MESSAGE 2
+#define STATION_DISCONNECT_MESSAGE 3
+
+int plfxlc_usb_wreq(struct usb_interface *ez_usb, void *buffer, int buffer_len,
+ enum plf_usb_req_enum usb_req_id);
+void plfxlc_tx_urb_complete(struct urb *urb);
+
+enum {
+ USB_MAX_RX_SIZE = 4800,
+ USB_MAX_EP_INT_BUFFER = 64,
+};
+
+struct plfxlc_usb_interrupt {
+ spinlock_t lock; /* spin lock for usb interrupt buffer */
+ struct urb *urb;
+ void *buffer;
+ int interval;
+};
+
+#define RX_URBS_COUNT 5
+
+struct plfxlc_usb_rx {
+ spinlock_t lock; /* spin lock for rx urb */
+ struct mutex setup_mutex; /* mutex lockt for rx urb */
+ u8 fragment[2 * USB_MAX_RX_SIZE];
+ unsigned int fragment_length;
+ unsigned int usb_packet_size;
+ struct urb **urbs;
+ int urbs_count;
+};
+
+struct plf_station {
+ /* 7...3 | 2 | 1 | 0 |
+ * Reserved | Heartbeat | FIFO full | Connected |
+ */
+ unsigned char flag;
+ unsigned char mac[ETH_ALEN];
+ struct sk_buff_head data_list;
+};
+
+struct plfxlc_firmware_file {
+ u32 total_files;
+ u32 total_size;
+ u32 size;
+ u32 start_addr;
+ u32 control_packets;
+} __packed;
+
+#define STATION_CONNECTED_FLAG 0x1
+#define STATION_FIFO_FULL_FLAG 0x2
+#define STATION_HEARTBEAT_FLAG 0x4
+#define STATION_ACTIVE_FLAG 0xFD
+
+#define PURELIFI_SERIAL_LEN 256
+#define STA_BROADCAST_INDEX (AP_USER_LIMIT)
+#define MAX_STA_NUM (AP_USER_LIMIT + 1)
+
+struct plfxlc_usb_tx {
+ unsigned long enabled;
+ spinlock_t lock; /* spinlock for USB tx */
+ u8 mac_fifo_full;
+ struct sk_buff_head submitted_skbs;
+ struct usb_anchor submitted;
+ int submitted_urbs;
+ bool stopped;
+ struct timer_list tx_retry_timer;
+ struct plf_station station[MAX_STA_NUM];
+};
+
+/* Contains the usb parts. The structure doesn't require a lock because intf
+ * will not be changed after initialization.
+ */
+struct plfxlc_usb {
+ struct timer_list sta_queue_cleanup;
+ struct plfxlc_usb_rx rx;
+ struct plfxlc_usb_tx tx;
+ struct usb_interface *intf;
+ struct usb_interface *ez_usb;
+ u8 req_buf[64]; /* plfxlc_usb_iowrite16v needs 62 bytes */
+ u8 sidx; /* store last served */
+ bool rx_usb_enabled;
+ bool initialized;
+ bool was_running;
+ bool link_up;
+};
+
+enum endpoints {
+ EP_DATA_IN = 2,
+ EP_DATA_OUT = 8,
+};
+
+enum devicetype {
+ DEVICE_LIFI_X = 0,
+ DEVICE_LIFI_XC = 1,
+ DEVICE_LIFI_XL = 1,
+};
+
+enum {
+ PLF_BIT_ENABLED = 1,
+ PLF_BIT_MAX = 2,
+};
+
+int plfxlc_usb_wreq_async(struct plfxlc_usb *usb, const u8 *buffer,
+ int buffer_len, enum plf_usb_req_enum usb_req_id,
+ usb_complete_t complete_fn, void *context);
+
+static inline struct usb_device *
+plfxlc_usb_to_usbdev(struct plfxlc_usb *usb)
+{
+ return interface_to_usbdev(usb->intf);
+}
+
+static inline struct ieee80211_hw *
+plfxlc_intf_to_hw(struct usb_interface *intf)
+{
+ return usb_get_intfdata(intf);
+}
+
+static inline struct ieee80211_hw *
+plfxlc_usb_to_hw(struct plfxlc_usb *usb)
+{
+ return plfxlc_intf_to_hw(usb->intf);
+}
+
+void plfxlc_usb_init(struct plfxlc_usb *usb, struct ieee80211_hw *hw,
+ struct usb_interface *intf);
+void plfxlc_send_packet_from_data_queue(struct plfxlc_usb *usb);
+void plfxlc_usb_release(struct plfxlc_usb *usb);
+void plfxlc_usb_disable_rx(struct plfxlc_usb *usb);
+void plfxlc_usb_enable_tx(struct plfxlc_usb *usb);
+void plfxlc_usb_disable_tx(struct plfxlc_usb *usb);
+int plfxlc_usb_tx(struct plfxlc_usb *usb, struct sk_buff *skb);
+int plfxlc_usb_enable_rx(struct plfxlc_usb *usb);
+int plfxlc_usb_init_hw(struct plfxlc_usb *usb);
+const char *plfxlc_speed(enum usb_device_speed speed);
+
+/* Firmware declarations */
+int plfxlc_download_xl_firmware(struct usb_interface *intf);
+int plfxlc_download_fpga(struct usb_interface *intf);
+
+int plfxlc_upload_mac_and_serial(struct usb_interface *intf,
+ unsigned char *hw_address,
+ unsigned char *serial_number);
+
+#endif /* PLFXLC_USB_H */