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
44 #define INT_DEVWIDE (INT_PWRDETECT|INT_SYSERROR/*|INT_ERR*/|INT_USBRESET|INT_SUSPEND)
45 #define INT_EP0 (INT_SETUP|INT_ENDPOINT0/*|INT_STATUS*/|INT_STATUSNAK)
48 #define MST_EOPB_DIS 0x0800
49 #define MST_EOPB_ENA 0x0400
50 #define MST_TIMEOUT_DIS 0x0200
51 #define MST_TIMEOUT_ENA 0x0100
52 #define MST_RD_EOPB 0x0080 /* write-only */
53 #define MST_RD_RESET 0x0040
54 #define MST_WR_RESET 0x0020
55 #define MST_RD_ENA 0x0004 /* 1:start, 0:ignore */
56 #define MST_WR_ENA 0x0002 /* 1:start, 0:ignore */
57 #define MST_CONNECTION 0x0001 /* 0 for ep1out/ep2in */
59 #define MST_R_BITS (MST_EOPB_DIS|MST_EOPB_ENA \
60 |MST_RD_ENA|MST_RD_RESET)
61 #define MST_W_BITS (MST_TIMEOUT_DIS|MST_TIMEOUT_ENA \
62 |MST_WR_ENA|MST_WR_RESET)
63 #define MST_RW_BITS (MST_R_BITS|MST_W_BITS \
66 /* these values assume (dma_master & MST_CONNECTION) == 0 */
67 #define UDC_MSTWR_ENDPOINT 1
68 #define UDC_MSTRD_ENDPOINT 2
70 /* dma master write */
81 #define PW_DETECT 0x04
82 #define PW_RESETB 0x02
83 #define PW_PULLUP 0x01
85 u8 _reserved0 [0x1d8];
87 /* endpoint registers */
88 u32 ep_fifo [4]; /* 0x200 */
90 u32 ep_mode [4]; /* only 1-3 valid */
94 #define EPxSTATUS_TOGGLE 0x40
95 #define EPxSTATUS_SUSPEND 0x20
96 #define EPxSTATUS_EP_MASK (0x07<<2)
97 # define EPxSTATUS_EP_READY (0<<2)
98 # define EPxSTATUS_EP_DATAIN (1<<2)
99 # define EPxSTATUS_EP_FULL (2<<2)
100 # define EPxSTATUS_EP_TX_ERR (3<<2)
101 # define EPxSTATUS_EP_RX_ERR (4<<2)
102 # define EPxSTATUS_EP_BUSY (5<<2)
103 # define EPxSTATUS_EP_STALL (6<<2)
104 # define EPxSTATUS_EP_INVALID (7<<2)
105 #define EPxSTATUS_FIFO_DISABLE 0x02
106 #define EPxSTATUS_STAGE_ERROR 0x01
108 u8 _reserved3 [0x10];
110 #define PACKET_ACTIVE (1<<7)
111 #define DATASIZE 0x7f
112 u8 _reserved3a [0x10];
113 u32 EPxSizeLB[4]; /* only 1,2 valid */
114 u8 _reserved3b [0x10];
115 u32 EPxSizeHA[4]; /* only 1-3 valid */
116 u8 _reserved3c [0x10];
117 u32 EPxSizeHB[4]; /* only 1,2 valid */
120 /* SETUP packet contents */
121 u32 bRequestType; /* 0x300 */
130 /* command interaction/handshaking */
131 u32 SetupRecv; /* 0x320 */
136 #define DATASET_A(epnum) (1<<(2*(epnum)))
137 #define DATASET_B(epnum) (2<<(2*(epnum)))
138 #define DATASET_AB(epnum) (3<<(2*(epnum)))
142 #define USBSTATE_CONFIGURED 0x04
143 #define USBSTATE_ADDRESSED 0x02
144 #define USBSTATE_DEFAULT 0x01
148 u32 Command; /* 0x340 */
149 #define COMMAND_SETDATA0 2
150 #define COMMAND_RESET 3
151 #define COMMAND_STALL 4
152 #define COMMAND_INVALID 5
153 #define COMMAND_FIFO_DISABLE 7
154 #define COMMAND_FIFO_ENABLE 8
155 #define COMMAND_INIT_DESCRIPTOR 9
156 #define COMMAND_FIFO_CLEAR 10 /* also stall */
157 #define COMMAND_STALL_CLEAR 11
158 #define COMMAND_EP(n) ((n) << 4)
165 #define ICONTROL_STATUSNAK 1
168 u32 reqmode; // 0x360 standard request mode, low 8 bits
169 #define G_REQMODE_SET_INTF (1<<7)
170 #define G_REQMODE_GET_INTF (1<<6)
171 #define G_REQMODE_SET_CONF (1<<5)
172 #define G_REQMODE_GET_CONF (1<<4)
173 #define G_REQMODE_GET_DESC (1<<3)
174 #define G_REQMODE_SET_FEAT (1<<2)
175 #define G_REQMODE_CLEAR_FEAT (1<<1)
176 #define G_REQMODE_GET_STATUS (1<<0)
180 u32 PortStatus; /* 0x380 */
187 u32 SetDescStall; /* 0x3a0 */
188 u8 _reserved13[0x45c];
190 /* hardware could handle limited GET_DESCRIPTOR duties */
191 #define DESC_LEN 0x80
192 u32 descriptors[DESC_LEN]; /* 0x800 */
193 u8 _reserved14[0x600];
195 } __attribute__ ((packed));
197 #define MAX_FIFO_SIZE 64
198 #define MAX_EP0_SIZE 8 /* ep0 fifo is bigger, though */
201 /*-------------------------------------------------------------------------*/
203 /* DRIVER DATA STRUCTURES and UTILITIES */
207 struct goku_udc *dev;
215 /* analogous to a host-side qh */
216 struct list_head queue;
217 const struct usb_endpoint_descriptor *desc;
219 u32 __iomem *reg_fifo;
220 u32 __iomem *reg_mode;
221 u32 __iomem *reg_status;
224 struct goku_request {
225 struct usb_request req;
226 struct list_head queue;
232 EP0_DISCONNECT, /* no host */
233 EP0_IDLE, /* between STATUS ack and SETUP report */
234 EP0_IN, EP0_OUT, /* data stage */
235 EP0_STATUS, /* status stage */
236 EP0_STALL, /* data or status stages */
237 EP0_SUSPEND, /* usb suspend */
241 /* each pci device provides one gadget, several endpoints */
242 struct usb_gadget gadget;
244 struct goku_ep ep[4];
245 struct usb_gadget_driver *driver;
247 enum ep0state ep0state;
254 /* pci state used to access those endpoints */
255 struct pci_dev *pdev;
256 struct goku_udc_regs __iomem *regs;
263 /*-------------------------------------------------------------------------*/
265 #define xprintk(dev,level,fmt,args...) \
266 printk(level "%s %s: " fmt , driver_name , \
267 pci_name(dev->pdev) , ## args)
270 #define DBG(dev,fmt,args...) \
271 xprintk(dev , KERN_DEBUG , fmt , ## args)
273 #define DBG(dev,fmt,args...) \
280 #define VDBG(dev,fmt,args...) \
284 #define ERROR(dev,fmt,args...) \
285 xprintk(dev , KERN_ERR , fmt , ## args)
286 #define WARN(dev,fmt,args...) \
287 xprintk(dev , KERN_WARNING , fmt , ## args)
288 #define INFO(dev,fmt,args...) \
289 xprintk(dev , KERN_INFO , fmt , ## args)