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2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87 
 kernel/drivers/usb/mtu3/mtu3.h
....@@ -1,4 +1,4 @@
1
-// SPDX-License-Identifier: GPL-2.0
1
+/* SPDX-License-Identifier: GPL-2.0 */
22 /*
33  * mtu3.h - MediaTek USB3 DRD header
44  *
....@@ -61,6 +61,15 @@
6161 
6262 #define MTU3_U3_IP_SLOT_DEFAULT 2
6363 #define MTU3_U2_IP_SLOT_DEFAULT 1
64
+
65
+/**
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+ * IP TRUNK version
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+ * from 0x1003 version, USB3 Gen2 is supported, two changes affect driver:
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+ * 1. MAXPKT and MULTI bits layout of TXCSR1 and RXCSR1 are adjusted,
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+ *    but not backward compatible
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+ * 2. QMU extend buffer length supported
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+ */
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+#define MTU3_TRUNK_VERS_1003	0x1003
6473 
6574 /**
6675  * Normally the device works on HS or SS, to simplify fifo management,
....@@ -135,45 +144,33 @@
135144  *	The format of TX GPD is a little different from RX one.
136145  *	And the size of GPD is 16 bytes.
137146  *
138
- * @flag:
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+ * @dw0_info:
139148  *	bit0: Hardware Own (HWO)
140149  *	bit1: Buffer Descriptor Present (BDP), always 0, BD is not supported
141150  *	bit2: Bypass (BPS), 1: HW skips this GPD if HWO = 1
151
+ *	bit6: [EL] Zero Length Packet (ZLP), moved from @dw3_info[29]
142152  *	bit7: Interrupt On Completion (IOC)
143
- * @chksum: This is used to validate the contents of this GPD;
144
- *	If TXQ_CS_EN / RXQ_CS_EN bit is set, an interrupt is issued
145
- *	when checksum validation fails;
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- *	Checksum value is calculated over the 16 bytes of the GPD by default;
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- * @data_buf_len (RX ONLY): This value indicates the length of
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- *	the assigned data buffer
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- * @tx_ext_addr (TX ONLY): [3:0] are 4 extension bits of @buffer,
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- *	[7:4] are 4 extension bits of @next_gpd
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+ *	bit[31:16]: ([EL] bit[31:12]) allow data buffer length (RX ONLY),
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+ *		the buffer length of the data to receive
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+ *	bit[23:16]: ([EL] bit[31:24]) extension address (TX ONLY),
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+ *		lower 4 bits are extension bits of @buffer,
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+ *		upper 4 bits are extension bits of @next_gpd
151158  * @next_gpd: Physical address of the next GPD
152159  * @buffer: Physical address of the data buffer
153
- * @buf_len:
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- *	(TX): This value indicates the length of the assigned data buffer
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- *	(RX): The total length of data received
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- * @ext_len: reserved
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- * @rx_ext_addr(RX ONLY): [3:0] are 4 extension bits of @buffer,
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- *	[7:4] are 4 extension bits of @next_gpd
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- * @ext_flag:
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- *	bit5 (TX ONLY): Zero Length Packet (ZLP),
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+ * @dw3_info:
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+ *	bit[15:0]: ([EL] bit[19:0]) data buffer length,
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+ *		(TX): the buffer length of the data to transmit
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+ *		(RX): The total length of data received
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+ *	bit[23:16]: ([EL] bit[31:24]) extension address (RX ONLY),
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+ *		lower 4 bits are extension bits of @buffer,
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+ *		upper 4 bits are extension bits of @next_gpd
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+ *	bit29: ([EL] abandoned) Zero Length Packet (ZLP) (TX ONLY)
161168  */
162169 struct qmu_gpd {
163
-	__u8 flag;
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-	__u8 chksum;
165
-	union {
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-		__le16 data_buf_len;
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-		__le16 tx_ext_addr;
168
-	};
170
+	__le32 dw0_info;
169171 	__le32 next_gpd;
170172 	__le32 buffer;
171
-	__le16 buf_len;
172
-	union {
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-		__u8 ext_len;
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-		__u8 rx_ext_addr;
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-	};
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-	__u8 ext_flag;
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+	__le32 dw3_info;
177174 } __packed;
178175 
179176 /**
....@@ -202,6 +199,9 @@
202199 * @id_nb : notifier for iddig(idpin) detection
203200 * @id_work : work of iddig detection notifier
204201 * @id_event : event of iddig detecion notifier
202
+* @role_sw : use USB Role Switch to support dual-role switch, can't use
203
+*		extcon at the same time, and extcon is deprecated.
204
+* @role_sw_used : true when the USB Role Switch is used.
205205 * @is_u3_drd: whether port0 supports usb3.0 dual-role device or not
206206 * @manual_drd_enabled: it's true when supports dual-role device by debugfs
207207 *		to switch host/device modes depending on user input.
....@@ -215,6 +215,8 @@
215215 	struct notifier_block id_nb;
216216 	struct work_struct id_work;
217217 	unsigned long id_event;
218
+	struct usb_role_switch *role_sw;
219
+	bool role_sw_used;
218220 	bool is_u3_drd;
219221 	bool manual_drd_enabled;
220222 };
....@@ -291,8 +293,6 @@
291293 	const struct usb_endpoint_descriptor *desc;
292294 
293295 	int flags;
294
-	u8 wedged;
295
-	u8 busy;
296296 };
297297 
298298 struct mtu3_request {
....@@ -316,6 +316,7 @@
316316  * @may_wakeup: means device's remote wakeup is enabled
317317  * @is_self_powered: is reported in device status and the config descriptor
318318  * @delayed_status: true when function drivers ask for delayed status
319
+ * @gen2cp: compatible with USB3 Gen2 IP
319320  * @ep0_req: dummy request used while handling standard USB requests
320321  *		for GET_STATUS and SET_SEL
321322  * @setup_buf: ep0 response buffer for GET_STATUS and SET_SEL requests
....@@ -345,7 +346,8 @@
345346 	struct usb_gadget_driver *gadget_driver;
346347 	struct mtu3_request ep0_req;
347348 	u8 setup_buf[EP0_RESPONSE_BUF];
348
-	u32 max_speed;
349
+	enum usb_device_speed max_speed;
350
+	enum usb_device_speed speed;
349351 
350352 	unsigned is_active:1;
351353 	unsigned may_wakeup:1;
....@@ -356,6 +358,7 @@
356358 	unsigned u2_enable:1;
357359 	unsigned is_u3_ip:1;
358360 	unsigned delayed_status:1;
361
+	unsigned gen2cp:1;
359362 
360363 	u8 address;
361364 	u8 test_mode_nr;
....@@ -365,12 +368,6 @@
365368 static inline struct mtu3 *gadget_to_mtu3(struct usb_gadget *g)
366369 {
367370 	return container_of(g, struct mtu3, g);
368
-}
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-
370
-static inline int is_first_entry(const struct list_head *list,
371
-	const struct list_head *head)
372
-{
373
-	return list_is_last(head, list);
374371 }
375372 
376373 static inline struct mtu3_request *to_mtu3_request(struct usb_request *req)
....@@ -429,6 +426,7 @@
429426 void mtu3_start(struct mtu3 *mtu);
430427 void mtu3_stop(struct mtu3 *mtu);
431428 void mtu3_dev_on_off(struct mtu3 *mtu, int is_on);
429
+void mtu3_set_speed(struct mtu3 *mtu, enum usb_device_speed speed);
432430 
433431 int mtu3_gadget_setup(struct mtu3 *mtu);
434432 void mtu3_gadget_cleanup(struct mtu3 *mtu);