summaryrefslogtreecommitdiffstats
path: root/drivers/usb/gadget/mv_udc.h
blob: 9073436d8b24af891be72d608c2ad2ef787265b9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
/*
 * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#ifndef __MV_UDC_H
#define __MV_UDC_H

#define VUSBHS_MAX_PORTS	8

#define DQH_ALIGNMENT		2048
#define DTD_ALIGNMENT		64
#define DMA_BOUNDARY		4096

#define EP_DIR_IN	1
#define EP_DIR_OUT	0

#define DMA_ADDR_INVALID	(~(dma_addr_t)0)

#define EP0_MAX_PKT_SIZE	64
/* ep0 transfer state */
#define WAIT_FOR_SETUP		0
#define DATA_STATE_XMIT		1
#define DATA_STATE_NEED_ZLP	2
#define WAIT_FOR_OUT_STATUS	3
#define DATA_STATE_RECV		4

#define CAPLENGTH_MASK		(0xff)
#define DCCPARAMS_DEN_MASK	(0x1f)

#define HCSPARAMS_PPC		(0x10)

/* Frame Index Register Bit Masks */
#define USB_FRINDEX_MASKS	0x3fff

/* Command Register Bit Masks */
#define USBCMD_RUN_STOP				(0x00000001)
#define USBCMD_CTRL_RESET			(0x00000002)
#define USBCMD_SETUP_TRIPWIRE_SET		(0x00002000)
#define USBCMD_SETUP_TRIPWIRE_CLEAR		(~USBCMD_SETUP_TRIPWIRE_SET)

#define USBCMD_ATDTW_TRIPWIRE_SET		(0x00004000)
#define USBCMD_ATDTW_TRIPWIRE_CLEAR		(~USBCMD_ATDTW_TRIPWIRE_SET)

/* bit 15,3,2 are for frame list size */
#define USBCMD_FRAME_SIZE_1024			(0x00000000) /* 000 */
#define USBCMD_FRAME_SIZE_512			(0x00000004) /* 001 */
#define USBCMD_FRAME_SIZE_256			(0x00000008) /* 010 */
#define USBCMD_FRAME_SIZE_128			(0x0000000C) /* 011 */
#define USBCMD_FRAME_SIZE_64			(0x00008000) /* 100 */
#define USBCMD_FRAME_SIZE_32			(0x00008004) /* 101 */
#define USBCMD_FRAME_SIZE_16			(0x00008008) /* 110 */
#define USBCMD_FRAME_SIZE_8			(0x0000800C) /* 111 */

#define EPCTRL_TX_ALL_MASK			(0xFFFF0000)
#define EPCTRL_RX_ALL_MASK			(0x0000FFFF)

#define EPCTRL_TX_DATA_TOGGLE_RST		(0x00400000)
#define EPCTRL_TX_EP_STALL			(0x00010000)
#define EPCTRL_RX_EP_STALL			(0x00000001)
#define EPCTRL_RX_DATA_TOGGLE_RST		(0x00000040)
#define EPCTRL_RX_ENABLE			(0x00000080)
#define EPCTRL_TX_ENABLE			(0x00800000)
#define EPCTRL_CONTROL				(0x00000000)
#define EPCTRL_ISOCHRONOUS			(0x00040000)
#define EPCTRL_BULK				(0x00080000)
#define EPCTRL_INT				(0x000C0000)
#define EPCTRL_TX_TYPE				(0x000C0000)
#define EPCTRL_RX_TYPE				(0x0000000C)
#define EPCTRL_DATA_TOGGLE_INHIBIT		(0x00000020)
#define EPCTRL_TX_EP_TYPE_SHIFT			(18)
#define EPCTRL_RX_EP_TYPE_SHIFT			(2)

#define EPCOMPLETE_MAX_ENDPOINTS		(16)

/* endpoint list address bit masks */
#define USB_EP_LIST_ADDRESS_MASK              0xfffff800

#define PORTSCX_W1C_BITS			0x2a
#define PORTSCX_PORT_RESET			0x00000100
#define PORTSCX_PORT_POWER			0x00001000
#define PORTSCX_FORCE_FULL_SPEED_CONNECT	0x01000000
#define PORTSCX_PAR_XCVR_SELECT			0xC0000000
#define PORTSCX_PORT_FORCE_RESUME		0x00000040
#define PORTSCX_PORT_SUSPEND			0x00000080
#define PORTSCX_PORT_SPEED_FULL			0x00000000
#define PORTSCX_PORT_SPEED_LOW			0x04000000
#define PORTSCX_PORT_SPEED_HIGH			0x08000000
#define PORTSCX_PORT_SPEED_MASK			0x0C000000

/* USB MODE Register Bit Masks */
#define USBMODE_CTRL_MODE_IDLE			0x00000000
#define USBMODE_CTRL_MODE_DEVICE		0x00000002
#define USBMODE_CTRL_MODE_HOST			0x00000003
#define USBMODE_CTRL_MODE_RSV			0x00000001
#define USBMODE_SETUP_LOCK_OFF			0x00000008
#define USBMODE_STREAM_DISABLE			0x00000010

/* USB STS Register Bit Masks */
#define USBSTS_INT			0x00000001
#define USBSTS_ERR			0x00000002
#define USBSTS_PORT_CHANGE		0x00000004
#define USBSTS_FRM_LST_ROLL		0x00000008
#define USBSTS_SYS_ERR			0x00000010
#define USBSTS_IAA			0x00000020
#define USBSTS_RESET			0x00000040
#define USBSTS_SOF			0x00000080
#define USBSTS_SUSPEND			0x00000100
#define USBSTS_HC_HALTED		0x00001000
#define USBSTS_RCL			0x00002000
#define USBSTS_PERIODIC_SCHEDULE	0x00004000
#define USBSTS_ASYNC_SCHEDULE		0x00008000


/* Interrupt Enable Register Bit Masks */
#define USBINTR_INT_EN                          (0x00000001)
#define USBINTR_ERR_INT_EN                      (0x00000002)
#define USBINTR_PORT_CHANGE_DETECT_EN           (0x00000004)

#define USBINTR_ASYNC_ADV_AAE                   (0x00000020)
#define USBINTR_ASYNC_ADV_AAE_ENABLE            (0x00000020)
#define USBINTR_ASYNC_ADV_AAE_DISABLE           (0xFFFFFFDF)

#define USBINTR_RESET_EN                        (0x00000040)
#define USBINTR_SOF_UFRAME_EN                   (0x00000080)
#define USBINTR_DEVICE_SUSPEND                  (0x00000100)

#define USB_DEVICE_ADDRESS_MASK			(0xfe000000)
#define USB_DEVICE_ADDRESS_BIT_SHIFT		(25)

struct mv_cap_regs {
	u32	caplength_hciversion;
	u32	hcsparams;	/* HC structural parameters */
	u32	hccparams;	/* HC Capability Parameters*/
	u32	reserved[5];
	u32	dciversion;	/* DC version number and reserved 16 bits */
	u32	dccparams;	/* DC Capability Parameters */
};

struct mv_op_regs {
	u32	usbcmd;		/* Command register */
	u32	usbsts;		/* Status register */
	u32	usbintr;	/* Interrupt enable */
	u32	frindex;	/* Frame index */
	u32	reserved1[1];
	u32	deviceaddr;	/* Device Address */
	u32	eplistaddr;	/* Endpoint List Address */
	u32	ttctrl;		/* HOST TT status and control */
	u32	burstsize;	/* Programmable Burst Size */
	u32	txfilltuning;	/* Host Transmit Pre-Buffer Packet Tuning */
	u32	reserved[4];
	u32	epnak;		/* Endpoint NAK */
	u32	epnaken;	/* Endpoint NAK Enable */
	u32	configflag;	/* Configured Flag register */
	u32	portsc[VUSBHS_MAX_PORTS]; /* Port Status/Control x, x = 1..8 */
	u32	otgsc;
	u32	usbmode;	/* USB Host/Device mode */
	u32	epsetupstat;	/* Endpoint Setup Status */
	u32	epprime;	/* Endpoint Initialize */
	u32	epflush;	/* Endpoint De-initialize */
	u32	epstatus;	/* Endpoint Status */
	u32	epcomplete;	/* Endpoint Interrupt On Complete */
	u32	epctrlx[16];	/* Endpoint Control, where x = 0.. 15 */
	u32	mcr;		/* Mux Control */
	u32	isr;		/* Interrupt Status */
	u32	ier;		/* Interrupt Enable */
};

struct mv_udc {
	struct usb_gadget		gadget;
	struct usb_gadget_driver	*driver;
	spinlock_t			lock;
	struct completion		*done;
	struct platform_device		*dev;
	int				irq;

	struct mv_cap_regs __iomem	*cap_regs;
	struct mv_op_regs __iomem	*op_regs;
	void __iomem                    *phy_regs;
	unsigned int			max_eps;
	struct mv_dqh			*ep_dqh;
	size_t				ep_dqh_size;
	dma_addr_t			ep_dqh_dma;

	struct dma_pool			*dtd_pool;
	struct mv_ep			*eps;

	struct mv_dtd			*dtd_head;
	struct mv_dtd			*dtd_tail;
	unsigned int			dtd_entries;

	struct mv_req			*status_req;
	struct usb_ctrlrequest		local_setup_buff;

	unsigned int		resume_state;	/* USB state to resume */
	unsigned int		usb_state;	/* USB current state */
	unsigned int		ep0_state;	/* Endpoint zero state */
	unsigned int		ep0_dir;

	unsigned int		dev_addr;
	unsigned int		test_mode;

	int			errors;
	unsigned		softconnect:1,
				vbus_active:1,
				remote_wakeup:1,
				softconnected:1,
				force_fs:1,
				clock_gating:1,
				active:1,
				stopped:1;      /* stop bit is setted */

	struct work_struct	vbus_work;
	struct workqueue_struct *qwork;

	struct usb_phy		*transceiver;

	struct mv_usb_platform_data     *pdata;

	/* some SOC has mutiple clock sources for USB*/
	unsigned int    clknum;
	struct clk      *clk[0];
};

/* endpoint data structure */
struct mv_ep {
	struct usb_ep		ep;
	struct mv_udc		*udc;
	struct list_head	queue;
	struct mv_dqh		*dqh;
	u32			direction;
	char			name[14];
	unsigned		stopped:1,
				wedge:1,
				ep_type:2,
				ep_num:8;
};

/* request data structure */
struct mv_req {
	struct usb_request	req;
	struct mv_dtd		*dtd, *head, *tail;
	struct mv_ep		*ep;
	struct list_head	queue;
	unsigned int            test_mode;
	unsigned		dtd_count;
	unsigned		mapped:1;
};

#define EP_QUEUE_HEAD_MULT_POS			30
#define EP_QUEUE_HEAD_ZLT_SEL			0x20000000
#define EP_QUEUE_HEAD_MAX_PKT_LEN_POS		16
#define EP_QUEUE_HEAD_MAX_PKT_LEN(ep_info)	(((ep_info)>>16)&0x07ff)
#define EP_QUEUE_HEAD_IOS			0x00008000
#define EP_QUEUE_HEAD_NEXT_TERMINATE		0x00000001
#define EP_QUEUE_HEAD_IOC			0x00008000
#define EP_QUEUE_HEAD_MULTO			0x00000C00
#define EP_QUEUE_HEAD_STATUS_HALT		0x00000040
#define EP_QUEUE_HEAD_STATUS_ACTIVE		0x00000080
#define EP_QUEUE_CURRENT_OFFSET_MASK		0x00000FFF
#define EP_QUEUE_HEAD_NEXT_POINTER_MASK		0xFFFFFFE0
#define EP_QUEUE_FRINDEX_MASK			0x000007FF
#define EP_MAX_LENGTH_TRANSFER			0x4000

struct mv_dqh {
	/* Bits 16..26 Bit 15 is Interrupt On Setup */
	u32	max_packet_length;
	u32	curr_dtd_ptr;		/* Current dTD Pointer */
	u32	next_dtd_ptr;		/* Next dTD Pointer */
	/* Total bytes (16..30), IOC (15), INT (8), STS (0-7) */
	u32	size_ioc_int_sts;
	u32	buff_ptr0;		/* Buffer pointer Page 0 (12-31) */
	u32	buff_ptr1;		/* Buffer pointer Page 1 (12-31) */
	u32	buff_ptr2;		/* Buffer pointer Page 2 (12-31) */
	u32	buff_ptr3;		/* Buffer pointer Page 3 (12-31) */
	u32	buff_ptr4;		/* Buffer pointer Page 4 (12-31) */
	u32	reserved1;
	/* 8 bytes of setup data that follows the Setup PID */
	u8	setup_buffer[8];
	u32	reserved2[4];
};


#define DTD_NEXT_TERMINATE		(0x00000001)
#define DTD_IOC				(0x00008000)
#define DTD_STATUS_ACTIVE		(0x00000080)
#define DTD_STATUS_HALTED		(0x00000040)
#define DTD_STATUS_DATA_BUFF_ERR	(0x00000020)
#define DTD_STATUS_TRANSACTION_ERR	(0x00000008)
#define DTD_RESERVED_FIELDS		(0x00007F00)
#define DTD_ERROR_MASK			(0x68)
#define DTD_ADDR_MASK			(0xFFFFFFE0)
#define DTD_PACKET_SIZE			0x7FFF0000
#define DTD_LENGTH_BIT_POS		(16)

struct mv_dtd {
	u32	dtd_next;
	u32	size_ioc_sts;
	u32	buff_ptr0;		/* Buffer pointer Page 0 */
	u32	buff_ptr1;		/* Buffer pointer Page 1 */
	u32	buff_ptr2;		/* Buffer pointer Page 2 */
	u32	buff_ptr3;		/* Buffer pointer Page 3 */
	u32	buff_ptr4;		/* Buffer pointer Page 4 */
	u32	scratch_ptr;
	/* 32 bytes */
	dma_addr_t td_dma;		/* dma address for this td */
	struct mv_dtd *next_dtd_virt;
};

#endif