2 * Toshiba TC86C001 ("Goku-S") USB Device Controller driver
4 * Copyright (C) 2000-2002 Lineo
5 * by Stuart Lynne, Tom Rushworth, and Bruce Balden
6 * Copyright (C) 2002 Toshiba Corporation
7 * Copyright (C) 2003 MontaVista Software (source@mvista.com)
9 * This file is licensed under the terms of the GNU General Public
10 * License version 2. This program is licensed "as is" without any
11 * warranty of any kind, whether express or implied.
15 * PCI BAR 0 points to these registers.
17 struct goku_udc_regs {
19 u32 int_status; /* 0x000 */
21 #define INT_SUSPEND 0x00001 /* or resume */
22 #define INT_USBRESET 0x00002
23 #define INT_ENDPOINT0 0x00004
24 #define INT_SETUP 0x00008
25 #define INT_STATUS 0x00010
26 #define INT_STATUSNAK 0x00020
27 #define INT_EPxDATASET(n) (0x00020 << (n)) /* 0 < n < 4 */
28 # define INT_EP1DATASET 0x00040
29 # define INT_EP2DATASET 0x00080
30 # define INT_EP3DATASET 0x00100
31 #define INT_EPnNAK(n) (0x00100 < (n)) /* 0 < n < 4 */
32 # define INT_EP1NAK 0x00200
33 # define INT_EP2NAK 0x00400
34 # define INT_EP3NAK 0x00800
35 #define INT_SOF 0x01000
36 #define INT_ERR 0x02000
37 #define INT_MSTWRSET 0x04000
38 #define INT_MSTWREND 0x08000
39 #define INT_MSTWRTMOUT 0x10000
40 #define INT_MSTRDEND 0x20000
41 #define INT_SYSERROR 0x40000
42 #define INT_PWRDETECT 0x80000
45 (INT_PWRDETECT|INT_SYSERROR/*|INT_ERR*/|INT_USBRESET|INT_SUSPEND)
47 (INT_SETUP|INT_ENDPOINT0/*|INT_STATUS*/|INT_STATUSNAK)
50 #define MST_EOPB_DIS 0x0800
51 #define MST_EOPB_ENA 0x0400
52 #define MST_TIMEOUT_DIS 0x0200
53 #define MST_TIMEOUT_ENA 0x0100
54 #define MST_RD_EOPB 0x0080 /* write-only */
55 #define MST_RD_RESET 0x0040
56 #define MST_WR_RESET 0x0020
57 #define MST_RD_ENA 0x0004 /* 1:start, 0:ignore */
58 #define MST_WR_ENA 0x0002 /* 1:start, 0:ignore */
59 #define MST_CONNECTION 0x0001 /* 0 for ep1out/ep2in */
61 #define MST_R_BITS (MST_EOPB_DIS|MST_EOPB_ENA \
62 |MST_RD_ENA|MST_RD_RESET)
63 #define MST_W_BITS (MST_TIMEOUT_DIS|MST_TIMEOUT_ENA \
64 |MST_WR_ENA|MST_WR_RESET)
65 #define MST_RW_BITS (MST_R_BITS|MST_W_BITS \
68 /* these values assume (dma_master & MST_CONNECTION) == 0 */
69 #define UDC_MSTWR_ENDPOINT 1
70 #define UDC_MSTRD_ENDPOINT 2
72 /* dma master write */
83 #define PW_DETECT 0x04
84 #define PW_RESETB 0x02
85 #define PW_PULLUP 0x01
87 u8 _reserved0 [0x1d8];
89 /* endpoint registers */
90 u32 ep_fifo [4]; /* 0x200 */
92 u32 ep_mode [4]; /* only 1-3 valid */
96 #define EPxSTATUS_TOGGLE 0x40
97 #define EPxSTATUS_SUSPEND 0x20
98 #define EPxSTATUS_EP_MASK (0x07<<2)
99 # define EPxSTATUS_EP_READY (0<<2)
100 # define EPxSTATUS_EP_DATAIN (1<<2)
101 # define EPxSTATUS_EP_FULL (2<<2)
102 # define EPxSTATUS_EP_TX_ERR (3<<2)
103 # define EPxSTATUS_EP_RX_ERR (4<<2)
104 # define EPxSTATUS_EP_BUSY (5<<2)
105 # define EPxSTATUS_EP_STALL (6<<2)
106 # define EPxSTATUS_EP_INVALID (7<<2)
107 #define EPxSTATUS_FIFO_DISABLE 0x02
108 #define EPxSTATUS_STAGE_ERROR 0x01
110 u8 _reserved3 [0x10];
112 #define PACKET_ACTIVE (1<<7)
113 #define DATASIZE 0x7f
114 u8 _reserved3a [0x10];
115 u32 EPxSizeLB[4]; /* only 1,2 valid */
116 u8 _reserved3b [0x10];
117 u32 EPxSizeHA[4]; /* only 1-3 valid */
118 u8 _reserved3c [0x10];
119 u32 EPxSizeHB[4]; /* only 1,2 valid */
122 /* SETUP packet contents */
123 u32 bRequestType; /* 0x300 */
132 /* command interaction/handshaking */
133 u32 SetupRecv; /* 0x320 */
138 #define DATASET_A(epnum) (1<<(2*(epnum)))
139 #define DATASET_B(epnum) (2<<(2*(epnum)))
140 #define DATASET_AB(epnum) (3<<(2*(epnum)))
144 #define USBSTATE_CONFIGURED 0x04
145 #define USBSTATE_ADDRESSED 0x02
146 #define USBSTATE_DEFAULT 0x01
150 u32 Command; /* 0x340 */
151 #define COMMAND_SETDATA0 2
152 #define COMMAND_RESET 3
153 #define COMMAND_STALL 4
154 #define COMMAND_INVALID 5
155 #define COMMAND_FIFO_DISABLE 7
156 #define COMMAND_FIFO_ENABLE 8
157 #define COMMAND_INIT_DESCRIPTOR 9
158 #define COMMAND_FIFO_CLEAR 10 /* also stall */
159 #define COMMAND_STALL_CLEAR 11
160 #define COMMAND_EP(n) ((n) << 4)
167 #define ICONTROL_STATUSNAK 1
170 u32 reqmode; // 0x360 standard request mode, low 8 bits
171 #define G_REQMODE_SET_INTF (1<<7)
172 #define G_REQMODE_GET_INTF (1<<6)
173 #define G_REQMODE_SET_CONF (1<<5)
174 #define G_REQMODE_GET_CONF (1<<4)
175 #define G_REQMODE_GET_DESC (1<<3)
176 #define G_REQMODE_SET_FEAT (1<<2)
177 #define G_REQMODE_CLEAR_FEAT (1<<1)
178 #define G_REQMODE_GET_STATUS (1<<0)
182 u32 PortStatus; /* 0x380 */
189 u32 SetDescStall; /* 0x3a0 */
190 u8 _reserved13[0x45c];
192 /* hardware could handle limited GET_DESCRIPTOR duties */
193 #define DESC_LEN 0x80
194 u32 descriptors[DESC_LEN]; /* 0x800 */
195 u8 _reserved14[0x600];
197 } __attribute__ ((packed));
199 #define MAX_FIFO_SIZE 64
200 #define MAX_EP0_SIZE 8 /* ep0 fifo is bigger, though */
203 /*-------------------------------------------------------------------------*/
205 /* DRIVER DATA STRUCTURES and UTILITIES */
209 struct goku_udc *dev;
217 /* analogous to a host-side qh */
218 struct list_head queue;
220 u32 __iomem *reg_fifo;
221 u32 __iomem *reg_mode;
222 u32 __iomem *reg_status;
225 struct goku_request {
226 struct usb_request req;
227 struct list_head queue;
233 EP0_DISCONNECT, /* no host */
234 EP0_IDLE, /* between STATUS ack and SETUP report */
235 EP0_IN, EP0_OUT, /* data stage */
236 EP0_STATUS, /* status stage */
237 EP0_STALL, /* data or status stages */
238 EP0_SUSPEND, /* usb suspend */
242 /* each pci device provides one gadget, several endpoints */
243 struct usb_gadget gadget;
245 struct goku_ep ep[4];
246 struct usb_gadget_driver *driver;
248 enum ep0state ep0state;
255 /* pci state used to access those endpoints */
256 struct pci_dev *pdev;
257 struct goku_udc_regs __iomem *regs;
263 #define to_goku_udc(g) (container_of((g), struct goku_udc, gadget))
265 /*-------------------------------------------------------------------------*/
267 #define xprintk(dev,level,fmt,args...) \
268 printk(level "%s %s: " fmt , driver_name , \
269 pci_name(dev->pdev) , ## args)
272 #define DBG(dev,fmt,args...) \
273 xprintk(dev , KERN_DEBUG , fmt , ## args)
275 #define DBG(dev,fmt,args...) \
282 #define VDBG(dev,fmt,args...) \
286 #define ERROR(dev,fmt,args...) \
287 xprintk(dev , KERN_ERR , fmt , ## args)
288 #define WARNING(dev,fmt,args...) \
289 xprintk(dev , KERN_WARNING , fmt , ## args)
290 #define INFO(dev,fmt,args...) \
291 xprintk(dev , KERN_INFO , fmt , ## args)