can: kvaser_usb: Add support for Kvaser USB hydra family

This patch adds support for a new Kvaser USB family, denoted hydra.
The hydra family currently contains USB devices with one CAN channel
up to five. There are devices with and without CAN FD support.
Signed-off-by: NJimmy Assarsson <extja@kvaser.com>
Signed-off-by: NChrister Beskow <chbe@kvaser.com>
Signed-off-by: NNicklas Johansson <extnj@kvaser.com>
Signed-off-by: NMartin Henriksson <mh@kvaser.com>
Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>

drivers/net/can/usb/Kconfig

@@ -32,7 +32,7 @@ config CAN_KVASER_USB
 	tristate "Kvaser CAN/USB interface"
 	---help---
 	  This driver adds support for Kvaser CAN/USB devices like Kvaser
-	  Leaf Light and Kvaser USBcan II.
+	  Leaf Light, Kvaser USBcan II and Kvaser Memorator Pro 5xHS.
 
 	  The driver provides support for the following devices:
 	    - Kvaser Leaf Light
@@ -61,6 +61,18 @@ config CAN_KVASER_USB
 	    - Kvaser Memorator HS/HS
 	    - Kvaser Memorator HS/LS
 	    - Scania VCI2 (if you have the Kvaser logo on top)
+	    - Kvaser BlackBird v2
+	    - Kvaser Leaf Pro HS v2
+	    - Kvaser Hybrid 2xCAN/LIN
+	    - Kvaser Hybrid Pro 2xCAN/LIN
+	    - Kvaser Memorator 2xHS v2
+	    - Kvaser Memorator Pro 2xHS v2
+	    - Kvaser Memorator Pro 5xHS
+	    - Kvaser USBcan Light 4xHS
+	    - Kvaser USBcan Pro 2xHS v2
+	    - Kvaser USBcan Pro 5xHS
+	    - ATI Memorator Pro 2xHS v2
+	    - ATI USBcan Pro 2xHS v2
 
 	  If unsure, say N.
 

drivers/net/can/usb/kvaser_usb/Makefile

 obj-$(CONFIG_CAN_KVASER_USB) += kvaser_usb.o
-kvaser_usb-y = kvaser_usb_core.o kvaser_usb_leaf.o
+kvaser_usb-y = kvaser_usb_core.o kvaser_usb_leaf.o kvaser_usb_hydra.o

drivers/net/can/usb/kvaser_usb/kvaser_usb.h

@@ -3,6 +3,7 @@
  *  - Kvaser linux leaf driver (version 4.78)
  *  - CAN driver for esd CAN-USB/2
  *  - Kvaser linux usbcanII driver (version 5.3)
+ *  - Kvaser linux mhydra driver (version 5.24)
  *
  * Copyright (C) 2002-2018 KVASER AB, Sweden. All rights reserved.
  * Copyright (C) 2010 Matthias Fuchs <matthias.fuchs@esd.eu>, esd gmbh
@@ -13,8 +14,10 @@
 #ifndef KVASER_USB_H
 #define KVASER_USB_H
 
-/* Kvaser USB CAN dongles are divided into two major families:
- * - Leaf: Based on Renesas M32C, running firmware labeled as 'filo'
+/* Kvaser USB CAN dongles are divided into three major platforms:
+ * - Hydra: Running firmware labeled as 'mhydra'
+ * - Leaf: Based on Renesas M32C or Freescale i.MX28, running firmware labeled
+ *         as 'filo'
  * - UsbcanII: Based on Renesas M16C, running firmware labeled as 'helios'
  */
 
@@ -30,12 +33,17 @@
 #define KVASER_USB_MAX_TX_URBS			128
 #define KVASER_USB_TIMEOUT			1000 /* msecs */
 #define KVASER_USB_RX_BUFFER_SIZE		3072
-#define KVASER_USB_MAX_NET_DEVICES		3
+#define KVASER_USB_MAX_NET_DEVICES		5
 
 /* USB devices features */
 #define KVASER_USB_HAS_SILENT_MODE		BIT(0)
 #define KVASER_USB_HAS_TXRX_ERRORS		BIT(1)
 
+/* Device capabilities */
+#define KVASER_USB_CAP_BERR_CAP			0x01
+#define KVASER_USB_CAP_EXT_CAP			0x02
+#define KVASER_USB_HYDRA_CAP_EXT_CMD		0x04
+
 struct kvaser_usb_dev_cfg;
 
 enum kvaser_usb_leaf_family {
@@ -43,11 +51,26 @@ enum kvaser_usb_leaf_family {
 	KVASER_USBCAN,
 };
 
+#define KVASER_USB_HYDRA_MAX_CMD_LEN		128
+struct kvaser_usb_dev_card_data_hydra {
+	u8 channel_to_he[KVASER_USB_MAX_NET_DEVICES];
+	u8 sysdbg_he;
+	spinlock_t transid_lock; /* lock for transid */
+	u16 transid;
+	/* lock for usb_rx_leftover and usb_rx_leftover_len */
+	spinlock_t usb_rx_leftover_lock;
+	u8 usb_rx_leftover[KVASER_USB_HYDRA_MAX_CMD_LEN];
+	u8 usb_rx_leftover_len;
+};
 struct kvaser_usb_dev_card_data {
 	u32 ctrlmode_supported;
-	struct {
-		enum kvaser_usb_leaf_family family;
-	} leaf;
+	u32 capabilities;
+	union {
+		struct {
+			enum kvaser_usb_leaf_family family;
+		} leaf;
+		struct kvaser_usb_dev_card_data_hydra hydra;
+	};
 };
 
 /* Context for an outstanding, not yet ACKed, transmission */
@@ -89,7 +112,7 @@ struct kvaser_usb_net_priv {
 	struct net_device *netdev;
 	int channel;
 
-	struct completion start_comp, stop_comp;
+	struct completion start_comp, stop_comp, flush_comp;
 	struct usb_anchor tx_submitted;
 
 	spinlock_t tx_contexts_lock; /* lock for active_tx_contexts */
@@ -101,12 +124,15 @@ struct kvaser_usb_net_priv {
  * struct kvaser_usb_dev_ops - Device specific functions
  * @dev_set_mode:		used for can.do_set_mode
  * @dev_set_bittiming:		used for can.do_set_bittiming
+ * @dev_set_data_bittiming:	used for can.do_set_data_bittiming
  * @dev_get_berr_counter:	used for can.do_get_berr_counter
  *
  * @dev_setup_endpoints:	setup USB in and out endpoints
  * @dev_init_card:		initialize card
  * @dev_get_software_info:	get software info
+ * @dev_get_software_details:	get software details
  * @dev_get_card_info:		get card info
+ * @dev_get_capabilities:	discover device capabilities
  *
  * @dev_set_opt_mode:		set ctrlmod
  * @dev_start_chip:		start the CAN controller
@@ -119,12 +145,15 @@ struct kvaser_usb_net_priv {
 struct kvaser_usb_dev_ops {
 	int (*dev_set_mode)(struct net_device *netdev, enum can_mode mode);
 	int (*dev_set_bittiming)(struct net_device *netdev);
+	int (*dev_set_data_bittiming)(struct net_device *netdev);
 	int (*dev_get_berr_counter)(const struct net_device *netdev,
 				    struct can_berr_counter *bec);
 	int (*dev_setup_endpoints)(struct kvaser_usb *dev);
 	int (*dev_init_card)(struct kvaser_usb *dev);
 	int (*dev_get_software_info)(struct kvaser_usb *dev);
+	int (*dev_get_software_details)(struct kvaser_usb *dev);
 	int (*dev_get_card_info)(struct kvaser_usb *dev);
+	int (*dev_get_capabilities)(struct kvaser_usb *dev);
 	int (*dev_set_opt_mode)(const struct kvaser_usb_net_priv *priv);
 	int (*dev_start_chip)(struct kvaser_usb_net_priv *priv);
 	int (*dev_stop_chip)(struct kvaser_usb_net_priv *priv);
@@ -144,6 +173,7 @@ struct kvaser_usb_dev_cfg {
 	const struct can_bittiming_const * const data_bittiming_const;
 };
 
+extern const struct kvaser_usb_dev_ops kvaser_usb_hydra_dev_ops;
 extern const struct kvaser_usb_dev_ops kvaser_usb_leaf_dev_ops;
 
 int kvaser_usb_recv_cmd(const struct kvaser_usb *dev, void *cmd, int len,

drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c

@@ -3,6 +3,7 @@
  *  - Kvaser linux leaf driver (version 4.78)
  *  - CAN driver for esd CAN-USB/2
  *  - Kvaser linux usbcanII driver (version 5.3)
+ *  - Kvaser linux mhydra driver (version 5.24)
  *
  * Copyright (C) 2002-2018 KVASER AB, Sweden. All rights reserved.
  * Copyright (C) 2010 Matthias Fuchs <matthias.fuchs@esd.eu>, esd gmbh
@@ -64,10 +65,26 @@
 #define USB_USBCAN2_PRODUCT_ID			4
 #define USB_MEMORATOR_PRODUCT_ID		5
 
+/* Kvaser Minihydra USB devices product ids */
+#define USB_BLACKBIRD_V2_PRODUCT_ID		258
+#define USB_MEMO_PRO_5HS_PRODUCT_ID		260
+#define USB_USBCAN_PRO_5HS_PRODUCT_ID		261
+#define USB_USBCAN_LIGHT_4HS_PRODUCT_ID		262
+#define USB_LEAF_PRO_HS_V2_PRODUCT_ID		263
+#define USB_USBCAN_PRO_2HS_V2_PRODUCT_ID	264
+#define USB_MEMO_2HS_PRODUCT_ID			265
+#define USB_MEMO_PRO_2HS_V2_PRODUCT_ID		266
+#define USB_HYBRID_CANLIN_PRODUCT_ID		267
+#define USB_ATI_USBCAN_PRO_2HS_V2_PRODUCT_ID	268
+#define USB_ATI_MEMO_PRO_2HS_V2_PRODUCT_ID	269
+#define USB_HYBRID_PRO_CANLIN_PRODUCT_ID	270
+
 static inline bool kvaser_is_leaf(const struct usb_device_id *id)
 {
-	return id->idProduct >= USB_LEAF_DEVEL_PRODUCT_ID &&
-	       id->idProduct <= USB_MINI_PCIE_2HS_PRODUCT_ID;
+	return (id->idProduct >= USB_LEAF_DEVEL_PRODUCT_ID &&
+		id->idProduct <= USB_CAN_R_PRODUCT_ID) ||
+		(id->idProduct >= USB_LEAF_LITE_V2_PRODUCT_ID &&
+		 id->idProduct <= USB_MINI_PCIE_2HS_PRODUCT_ID);
 }
 
 static inline bool kvaser_is_usbcan(const struct usb_device_id *id)
@@ -76,6 +93,12 @@ static inline bool kvaser_is_usbcan(const struct usb_device_id *id)
 	       id->idProduct <= USB_MEMORATOR_PRODUCT_ID;
 }
 
+static inline bool kvaser_is_hydra(const struct usb_device_id *id)
+{
+	return id->idProduct >= USB_BLACKBIRD_V2_PRODUCT_ID &&
+	       id->idProduct <= USB_HYBRID_PRO_CANLIN_PRODUCT_ID;
+}
+
 static const struct usb_device_id kvaser_usb_table[] = {
 	/* Leaf USB product IDs */
 	{ USB_DEVICE(KVASER_VENDOR_ID, USB_LEAF_DEVEL_PRODUCT_ID) },
@@ -140,6 +163,20 @@ static const struct usb_device_id kvaser_usb_table[] = {
 		.driver_info = KVASER_USB_HAS_TXRX_ERRORS },
 	{ USB_DEVICE(KVASER_VENDOR_ID, USB_VCI2_PRODUCT_ID),
 		.driver_info = KVASER_USB_HAS_TXRX_ERRORS },
+
+	/* Minihydra USB product IDs */
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_BLACKBIRD_V2_PRODUCT_ID) },
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_MEMO_PRO_5HS_PRODUCT_ID) },
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_USBCAN_PRO_5HS_PRODUCT_ID) },
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_USBCAN_LIGHT_4HS_PRODUCT_ID) },
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_LEAF_PRO_HS_V2_PRODUCT_ID) },
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_USBCAN_PRO_2HS_V2_PRODUCT_ID) },
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_MEMO_2HS_PRODUCT_ID) },
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_MEMO_PRO_2HS_V2_PRODUCT_ID) },
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_HYBRID_CANLIN_PRODUCT_ID) },
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_ATI_USBCAN_PRO_2HS_V2_PRODUCT_ID) },
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_ATI_MEMO_PRO_2HS_V2_PRODUCT_ID) },
+	{ USB_DEVICE(KVASER_VENDOR_ID, USB_HYBRID_PRO_CANLIN_PRODUCT_ID) },
 	{ }
 };
 MODULE_DEVICE_TABLE(usb, kvaser_usb_table);
@@ -633,13 +670,20 @@ static int kvaser_usb_init_one(struct kvaser_usb *dev,
 	priv->can.bittiming_const = dev->cfg->bittiming_const;
 	priv->can.do_set_bittiming = dev->ops->dev_set_bittiming;
 	priv->can.do_set_mode = dev->ops->dev_set_mode;
-	if (id->driver_info & KVASER_USB_HAS_TXRX_ERRORS)
+	if ((id->driver_info & KVASER_USB_HAS_TXRX_ERRORS) ||
+	    (priv->dev->card_data.capabilities & KVASER_USB_CAP_BERR_CAP))
 		priv->can.do_get_berr_counter = dev->ops->dev_get_berr_counter;
 	if (id->driver_info & KVASER_USB_HAS_SILENT_MODE)
 		priv->can.ctrlmode_supported |= CAN_CTRLMODE_LISTENONLY;
 
 	priv->can.ctrlmode_supported |= dev->card_data.ctrlmode_supported;
 
+	if (priv->can.ctrlmode_supported & CAN_CTRLMODE_FD) {
+		priv->can.data_bittiming_const = dev->cfg->data_bittiming_const;
+		priv->can.do_set_data_bittiming =
+					dev->ops->dev_set_data_bittiming;
+	}
+
 	netdev->flags |= IFF_ECHO;
 
 	netdev->netdev_ops = &kvaser_usb_netdev_ops;
@@ -679,6 +723,8 @@ static int kvaser_usb_probe(struct usb_interface *intf,
 	} else if (kvaser_is_usbcan(id)) {
 		dev->card_data.leaf.family = KVASER_USBCAN;
 		dev->ops = &kvaser_usb_leaf_dev_ops;
+	} else if (kvaser_is_hydra(id)) {
+		dev->ops = &kvaser_usb_hydra_dev_ops;
 	} else {
 		dev_err(&intf->dev,
 			"Product ID (%d) is not a supported Kvaser USB device\n",
@@ -701,6 +747,7 @@ static int kvaser_usb_probe(struct usb_interface *intf,
 	usb_set_intfdata(intf, dev);
 
 	dev->card_data.ctrlmode_supported = 0;
+	dev->card_data.capabilities = 0;
 	err = dev->ops->dev_init_card(dev);
 	if (err) {
 		dev_err(&intf->dev,
@@ -715,6 +762,15 @@ static int kvaser_usb_probe(struct usb_interface *intf,
 		return err;
 	}
 
+	if (dev->ops->dev_get_software_details) {
+		err = dev->ops->dev_get_software_details(dev);
+		if (err) {
+			dev_err(&intf->dev,
+				"Cannot get software details, error %d\n", err);
+			return err;
+		}
+	}
+
 	if (WARN_ON(!dev->cfg))
 		return -ENODEV;
 
@@ -731,6 +787,16 @@ static int kvaser_usb_probe(struct usb_interface *intf,
 		return err;
 	}
 
+	if (dev->ops->dev_get_capabilities) {
+		err = dev->ops->dev_get_capabilities(dev);
+		if (err) {
+			dev_err(&intf->dev,
+				"Cannot get capabilities, error %d\n", err);
+			kvaser_usb_remove_interfaces(dev);
+			return err;
+		}
+	}
+
 	for (i = 0; i < dev->nchannels; i++) {
 		err = kvaser_usb_init_one(dev, id, i);
 		if (err) {

drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c

@@ -1340,11 +1340,14 @@ static int kvaser_usb_leaf_setup_endpoints(struct kvaser_usb *dev)
 const struct kvaser_usb_dev_ops kvaser_usb_leaf_dev_ops = {
 	.dev_set_mode = kvaser_usb_leaf_set_mode,
 	.dev_set_bittiming = kvaser_usb_leaf_set_bittiming,
+	.dev_set_data_bittiming = NULL,
 	.dev_get_berr_counter = kvaser_usb_leaf_get_berr_counter,
 	.dev_setup_endpoints = kvaser_usb_leaf_setup_endpoints,
 	.dev_init_card = kvaser_usb_leaf_init_card,
 	.dev_get_software_info = kvaser_usb_leaf_get_software_info,
+	.dev_get_software_details = NULL,
 	.dev_get_card_info = kvaser_usb_leaf_get_card_info,
+	.dev_get_capabilities = NULL,
 	.dev_set_opt_mode = kvaser_usb_leaf_set_opt_mode,
 	.dev_start_chip = kvaser_usb_leaf_start_chip,
 	.dev_stop_chip = kvaser_usb_leaf_stop_chip,