2 * linux/drivers/usb/gadget/lh7a40x_udc.h
3 * Sharp LH7A40x on-chip full speed USB device controllers
5 * Copyright (C) 2004 Mikko Lahteenmaki, Nordic ID
6 * Copyright (C) 2004 Bo Henriksen, Nordic ID
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #include <linux/config.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/ioport.h>
31 #include <linux/types.h>
32 #include <linux/errno.h>
33 #include <linux/delay.h>
34 #include <linux/sched.h>
35 #include <linux/slab.h>
36 #include <linux/init.h>
37 #include <linux/timer.h>
38 #include <linux/list.h>
39 #include <linux/interrupt.h>
40 #include <linux/proc_fs.h>
42 #include <linux/device.h>
43 #include <linux/dma-mapping.h>
45 #include <asm/byteorder.h>
49 #include <asm/system.h>
50 #include <asm/unaligned.h>
51 #include <asm/hardware.h>
53 #include <linux/usb_ch9.h>
54 #include <linux/usb_gadget.h>
60 #define USB_FA 0x80000200 // function address register
61 #define USB_PM 0x80000204 // power management register
63 #define USB_IN_INT 0x80000208 // IN interrupt register bank (EP0-EP3)
64 #define USB_OUT_INT 0x80000210 // OUT interrupt register bank (EP2)
65 #define USB_INT 0x80000218 // interrupt register bank
67 #define USB_IN_INT_EN 0x8000021C // IN interrupt enable register bank
68 #define USB_OUT_INT_EN 0x80000224 // OUT interrupt enable register bank
69 #define USB_INT_EN 0x8000022C // USB interrupt enable register bank
71 #define USB_FRM_NUM1 0x80000230 // Frame number1 register
72 #define USB_FRM_NUM2 0x80000234 // Frame number2 register
73 #define USB_INDEX 0x80000238 // index register
75 #define USB_IN_MAXP 0x80000240 // IN MAXP register
76 #define USB_IN_CSR1 0x80000244 // IN CSR1 register/EP0 CSR register
77 #define USB_EP0_CSR 0x80000244 // IN CSR1 register/EP0 CSR register
78 #define USB_IN_CSR2 0x80000248 // IN CSR2 register
79 #define USB_OUT_MAXP 0x8000024C // OUT MAXP register
81 #define USB_OUT_CSR1 0x80000250 // OUT CSR1 register
82 #define USB_OUT_CSR2 0x80000254 // OUT CSR2 register
83 #define USB_OUT_FIFO_WC1 0x80000258 // OUT FIFO write count1 register
84 #define USB_OUT_FIFO_WC2 0x8000025C // OUT FIFO write count2 register
86 #define USB_RESET 0x8000044C // USB reset register
88 #define USB_EP0_FIFO 0x80000280
89 #define USB_EP1_FIFO 0x80000284
90 #define USB_EP2_FIFO 0x80000288
91 #define USB_EP3_FIFO 0x8000028c
96 #define USB_RESET_APB (1<<1) //resets USB APB control side WRITE
97 #define USB_RESET_IO (1<<0) //resets USB IO side WRITE
100 * USB function address register
102 #define USB_FA_ADDR_UPDATE (1<<7)
103 #define USB_FA_FUNCTION_ADDR (0x7F)
106 * Power Management register
108 #define PM_USB_DCP (1<<5)
109 #define PM_USB_ENABLE (1<<4)
110 #define PM_USB_RESET (1<<3)
111 #define PM_UC_RESUME (1<<2)
112 #define PM_SUSPEND_MODE (1<<1)
113 #define PM_ENABLE_SUSPEND (1<<0)
116 * IN interrupt register
118 #define USB_IN_INT_EP3 (1<<3)
119 #define USB_IN_INT_EP1 (1<<1)
120 #define USB_IN_INT_EP0 (1<<0)
123 * OUT interrupt register
125 #define USB_OUT_INT_EP2 (1<<2)
128 * USB interrupt register
130 #define USB_INT_RESET_INT (1<<2)
131 #define USB_INT_RESUME_INT (1<<1)
132 #define USB_INT_SUSPEND_INT (1<<0)
135 * USB interrupt enable register
137 #define USB_INT_EN_USB_RESET_INTER (1<<2)
138 #define USB_INT_EN_RESUME_INTER (1<<1)
139 #define USB_INT_EN_SUSPEND_INTER (1<<0)
144 #define USB_IN_CSR1_CLR_DATA_TOGGLE (1<<6)
145 #define USB_IN_CSR1_SENT_STALL (1<<5)
146 #define USB_IN_CSR1_SEND_STALL (1<<4)
147 #define USB_IN_CSR1_FIFO_FLUSH (1<<3)
148 #define USB_IN_CSR1_FIFO_NOT_EMPTY (1<<1)
149 #define USB_IN_CSR1_IN_PKT_RDY (1<<0)
154 #define USB_IN_CSR2_AUTO_SET (1<<7)
155 #define USB_IN_CSR2_USB_DMA_EN (1<<4)
160 #define USB_OUT_CSR1_CLR_DATA_REG (1<<7)
161 #define USB_OUT_CSR1_SENT_STALL (1<<6)
162 #define USB_OUT_CSR1_SEND_STALL (1<<5)
163 #define USB_OUT_CSR1_FIFO_FLUSH (1<<4)
164 #define USB_OUT_CSR1_FIFO_FULL (1<<1)
165 #define USB_OUT_CSR1_OUT_PKT_RDY (1<<0)
170 #define USB_OUT_CSR2_AUTO_CLR (1<<7)
171 #define USB_OUT_CSR2_USB_DMA_EN (1<<4)
176 #define EP0_CLR_SETUP_END (1<<7) /* Clear "Setup Ends" Bit (w) */
177 #define EP0_CLR_OUT (1<<6) /* Clear "Out packet ready" Bit (w) */
178 #define EP0_SEND_STALL (1<<5) /* Send STALL Handshake (rw) */
179 #define EP0_SETUP_END (1<<4) /* Setup Ends (r) */
181 #define EP0_DATA_END (1<<3) /* Data end (rw) */
182 #define EP0_SENT_STALL (1<<2) /* Sent Stall Handshake (r) */
183 #define EP0_IN_PKT_RDY (1<<1) /* In packet ready (rw) */
184 #define EP0_OUT_PKT_RDY (1<<0) /* Out packet ready (r) */
187 #define OUT_PKT_RDY (1<<0)
188 #define IN_PKT_RDY (1<<0)
191 * IN/OUT MAXP register
193 #define USB_OUT_MAXP_MAXP (0xF)
194 #define USB_IN_MAXP_MAXP (0xF)
197 //#define EP0_PACKETSIZE 0x10
198 #define EP0_PACKETSIZE 0x8
199 #define EP0_MAXPACKETSIZE 0x10
201 #define UDC_MAX_ENDPOINTS 4
203 #define WAIT_FOR_SETUP 0
204 #define DATA_STATE_XMIT 1
205 #define DATA_STATE_NEED_ZLP 2
206 #define WAIT_FOR_OUT_STATUS 3
207 #define DATA_STATE_RECV 4
209 /* ********************************************************************************************* */
213 typedef enum ep_type {
214 ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
219 struct lh7a40x_udc *dev;
221 const struct usb_endpoint_descriptor *desc;
222 struct list_head queue;
223 unsigned long pio_irqs;
235 struct lh7a40x_request {
236 struct usb_request req;
237 struct list_head queue;
241 struct usb_gadget gadget;
242 struct usb_gadget_driver *driver;
247 struct lh7a40x_ep ep[UDC_MAX_ENDPOINTS];
249 unsigned char usb_address;
251 unsigned req_pending:1, req_std:1, req_config:1;
254 extern struct lh7a40x_udc *the_controller;
256 #define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN)==USB_DIR_IN)
257 #define ep_index(EP) ((EP)->bEndpointAddress&0xF)
258 #define ep_maxpacket(EP) ((EP)->ep.maxpacket)