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/version.h>
33 #include <linux/errno.h>
34 #include <linux/delay.h>
35 #include <linux/sched.h>
36 #include <linux/slab.h>
37 #include <linux/init.h>
38 #include <linux/timer.h>
39 #include <linux/list.h>
40 #include <linux/interrupt.h>
41 #include <linux/proc_fs.h>
43 #include <linux/device.h>
44 #include <linux/dma-mapping.h>
46 #include <asm/byteorder.h>
50 #include <asm/system.h>
51 #include <asm/unaligned.h>
52 #include <asm/hardware.h>
54 #include <linux/usb_ch9.h>
55 #include <linux/usb_gadget.h>
61 #define USB_FA 0x80000200 // function address register
62 #define USB_PM 0x80000204 // power management register
64 #define USB_IN_INT 0x80000208 // IN interrupt register bank (EP0-EP3)
65 #define USB_OUT_INT 0x80000210 // OUT interrupt register bank (EP2)
66 #define USB_INT 0x80000218 // interrupt register bank
68 #define USB_IN_INT_EN 0x8000021C // IN interrupt enable register bank
69 #define USB_OUT_INT_EN 0x80000224 // OUT interrupt enable register bank
70 #define USB_INT_EN 0x8000022C // USB interrupt enable register bank
72 #define USB_FRM_NUM1 0x80000230 // Frame number1 register
73 #define USB_FRM_NUM2 0x80000234 // Frame number2 register
74 #define USB_INDEX 0x80000238 // index register
76 #define USB_IN_MAXP 0x80000240 // IN MAXP register
77 #define USB_IN_CSR1 0x80000244 // IN CSR1 register/EP0 CSR register
78 #define USB_EP0_CSR 0x80000244 // IN CSR1 register/EP0 CSR register
79 #define USB_IN_CSR2 0x80000248 // IN CSR2 register
80 #define USB_OUT_MAXP 0x8000024C // OUT MAXP register
82 #define USB_OUT_CSR1 0x80000250 // OUT CSR1 register
83 #define USB_OUT_CSR2 0x80000254 // OUT CSR2 register
84 #define USB_OUT_FIFO_WC1 0x80000258 // OUT FIFO write count1 register
85 #define USB_OUT_FIFO_WC2 0x8000025C // OUT FIFO write count2 register
87 #define USB_RESET 0x8000044C // USB reset register
89 #define USB_EP0_FIFO 0x80000280
90 #define USB_EP1_FIFO 0x80000284
91 #define USB_EP2_FIFO 0x80000288
92 #define USB_EP3_FIFO 0x8000028c
97 #define USB_RESET_APB (1<<1) //resets USB APB control side WRITE
98 #define USB_RESET_IO (1<<0) //resets USB IO side WRITE
101 * USB function address register
103 #define USB_FA_ADDR_UPDATE (1<<7)
104 #define USB_FA_FUNCTION_ADDR (0x7F)
107 * Power Management register
109 #define PM_USB_DCP (1<<5)
110 #define PM_USB_ENABLE (1<<4)
111 #define PM_USB_RESET (1<<3)
112 #define PM_UC_RESUME (1<<2)
113 #define PM_SUSPEND_MODE (1<<1)
114 #define PM_ENABLE_SUSPEND (1<<0)
117 * IN interrupt register
119 #define USB_IN_INT_EP3 (1<<3)
120 #define USB_IN_INT_EP1 (1<<1)
121 #define USB_IN_INT_EP0 (1<<0)
124 * OUT interrupt register
126 #define USB_OUT_INT_EP2 (1<<2)
129 * USB interrupt register
131 #define USB_INT_RESET_INT (1<<2)
132 #define USB_INT_RESUME_INT (1<<1)
133 #define USB_INT_SUSPEND_INT (1<<0)
136 * USB interrupt enable register
138 #define USB_INT_EN_USB_RESET_INTER (1<<2)
139 #define USB_INT_EN_RESUME_INTER (1<<1)
140 #define USB_INT_EN_SUSPEND_INTER (1<<0)
145 #define USB_IN_CSR1_CLR_DATA_TOGGLE (1<<6)
146 #define USB_IN_CSR1_SENT_STALL (1<<5)
147 #define USB_IN_CSR1_SEND_STALL (1<<4)
148 #define USB_IN_CSR1_FIFO_FLUSH (1<<3)
149 #define USB_IN_CSR1_FIFO_NOT_EMPTY (1<<1)
150 #define USB_IN_CSR1_IN_PKT_RDY (1<<0)
155 #define USB_IN_CSR2_AUTO_SET (1<<7)
156 #define USB_IN_CSR2_USB_DMA_EN (1<<4)
161 #define USB_OUT_CSR1_CLR_DATA_REG (1<<7)
162 #define USB_OUT_CSR1_SENT_STALL (1<<6)
163 #define USB_OUT_CSR1_SEND_STALL (1<<5)
164 #define USB_OUT_CSR1_FIFO_FLUSH (1<<4)
165 #define USB_OUT_CSR1_FIFO_FULL (1<<1)
166 #define USB_OUT_CSR1_OUT_PKT_RDY (1<<0)
171 #define USB_OUT_CSR2_AUTO_CLR (1<<7)
172 #define USB_OUT_CSR2_USB_DMA_EN (1<<4)
177 #define EP0_CLR_SETUP_END (1<<7) /* Clear "Setup Ends" Bit (w) */
178 #define EP0_CLR_OUT (1<<6) /* Clear "Out packet ready" Bit (w) */
179 #define EP0_SEND_STALL (1<<5) /* Send STALL Handshake (rw) */
180 #define EP0_SETUP_END (1<<4) /* Setup Ends (r) */
182 #define EP0_DATA_END (1<<3) /* Data end (rw) */
183 #define EP0_SENT_STALL (1<<2) /* Sent Stall Handshake (r) */
184 #define EP0_IN_PKT_RDY (1<<1) /* In packet ready (rw) */
185 #define EP0_OUT_PKT_RDY (1<<0) /* Out packet ready (r) */
188 #define OUT_PKT_RDY (1<<0)
189 #define IN_PKT_RDY (1<<0)
192 * IN/OUT MAXP register
194 #define USB_OUT_MAXP_MAXP (0xF)
195 #define USB_IN_MAXP_MAXP (0xF)
198 //#define EP0_PACKETSIZE 0x10
199 #define EP0_PACKETSIZE 0x8
200 #define EP0_MAXPACKETSIZE 0x10
202 #define UDC_MAX_ENDPOINTS 4
204 #define WAIT_FOR_SETUP 0
205 #define DATA_STATE_XMIT 1
206 #define DATA_STATE_NEED_ZLP 2
207 #define WAIT_FOR_OUT_STATUS 3
208 #define DATA_STATE_RECV 4
210 /* ********************************************************************************************* */
214 typedef enum ep_type {
215 ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
220 struct lh7a40x_udc *dev;
222 const struct usb_endpoint_descriptor *desc;
223 struct list_head queue;
224 unsigned long pio_irqs;
236 struct lh7a40x_request {
237 struct usb_request req;
238 struct list_head queue;
242 struct usb_gadget gadget;
243 struct usb_gadget_driver *driver;
248 struct lh7a40x_ep ep[UDC_MAX_ENDPOINTS];
250 unsigned char usb_address;
252 unsigned req_pending:1, req_std:1, req_config:1;
255 extern struct lh7a40x_udc *the_controller;
257 #define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN)==USB_DIR_IN)
258 #define ep_index(EP) ((EP)->bEndpointAddress&0xF)
259 #define ep_maxpacket(EP) ((EP)->ep.maxpacket)