1 /* $OpenBSD: ezload.c,v 1.8 2005/04/14 19:07:02 damien Exp $ */
2 /* $NetBSD: ezload.c,v 1.5 2002/07/11 21:14:25 augustss Exp $ */
3
4 /*
5 * Copyright (c) 2000 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Lennart Augustsson <lennart@augustsson.net>.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/device.h>
44 #include <sys/malloc.h>
45 #include <sys/conf.h>
46
47 #include <dev/usb/usb.h>
48 #include <dev/usb/usbdi.h>
49 #include <dev/usb/usbdi_util.h>
50
51 #include <dev/usb/ezload.h>
52
53 /*
54 * Vendor specific request code for Anchor Upload/Download
55 */
56
57 /* This one is implemented in the core */
58 #define ANCHOR_LOAD_INTERNAL 0xA0
59
60 /* This is the highest internal RAM address for the AN2131Q */
61 #define ANCHOR_MAX_INTERNAL_ADDRESS 0x1B3F
62
63 /*
64 * EZ-USB Control and Status Register. Bit 0 controls 8051 reset
65 */
66 #define ANCHOR_CPUCS_REG 0x7F92
67 #define ANCHOR_RESET 0x01
68
69 /*
70 * Although USB does not limit you here, the Anchor docs
71 * quote 64 as a limit, and Mato@activewireinc.com suggested
72 * to use 16.
73 */
74 #define ANCHOR_CHUNK 16
75
76 /*
77 * This is a firmware loader for ezusb (Anchor) devices. When the firmware
78 * has been downloaded the device will simulate a disconnect and when it
79 * is next recognized by the USB software it will appear as another
80 * device.
81 */
82
83 #ifdef USB_DEBUG
84 #define DPRINTF(x) if (ezloaddebug) printf x
85 #define DPRINTFN(n,x) if (ezloaddebug>(n)) printf x
86 int ezloaddebug = 0;
87 #else
88 #define DPRINTF(x)
89 #define DPRINTFN(n,x)
90 #endif
91
92 usbd_status
ezload_reset(usbd_device_handle dev,int reset)93 ezload_reset(usbd_device_handle dev, int reset)
94 {
95 usb_device_request_t req;
96 uByte rst;
97
98 DPRINTF(("ezload_reset: reset=%d\n", reset));
99
100 rst = reset ? ANCHOR_RESET : 0;
101 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
102 req.bRequest = ANCHOR_LOAD_INTERNAL;
103 USETW(req.wValue, ANCHOR_CPUCS_REG);
104 USETW(req.wIndex, 0);
105 USETW(req.wLength, 1);
106 return (usbd_do_request(dev, &req, &rst));
107 }
108
109 usbd_status
ezload_download(usbd_device_handle dev,const char * name,const u_char * buf,size_t buflen)110 ezload_download(usbd_device_handle dev, const char *name, const u_char *buf,
111 size_t buflen)
112 {
113 usb_device_request_t req;
114 usbd_status err = 0;
115 u_int8_t length;
116 u_int16_t address;
117 u_int len, offs;
118
119 for (;;) {
120 length = *buf++;
121 if (length == 0)
122 break;
123
124 address = UGETW(buf); buf += 2;
125 #if 0
126 if (address + length > ANCHOR_MAX_INTERNAL_ADDRESS)
127 return (USBD_INVAL);
128 #endif
129
130 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
131 req.bRequest = ANCHOR_LOAD_INTERNAL;
132 USETW(req.wIndex, 0);
133 for (offs = 0; offs < length; offs += ANCHOR_CHUNK) {
134 len = length - offs;
135 if (len > ANCHOR_CHUNK)
136 len = ANCHOR_CHUNK;
137 USETW(req.wValue, address + offs);
138 USETW(req.wLength, len);
139 DPRINTFN(2,("ezload_download: addr=0x%x len=%d\n",
140 address + offs, len));
141 err = usbd_do_request(dev, &req, (u_char *)buf);
142 if (err)
143 break;
144
145 buf += len;
146 }
147 if (err)
148 break;
149 }
150
151 return (err);
152 }
153
154 usbd_status
ezload_downloads_and_reset(usbd_device_handle dev,char ** names)155 ezload_downloads_and_reset(usbd_device_handle dev, char **names)
156 {
157 usbd_status err;
158 size_t buflen;
159 u_char *buf;
160 int error;
161
162 /*(void)ezload_reset(dev, 1);*/
163 err = ezload_reset(dev, 1);
164 if (err)
165 return (err);
166 usbd_delay_ms(dev, 250);
167
168 while (*names != NULL) {
169 error = loadfirmware(*names, &buf, &buflen);
170 if (error)
171 return (error);
172
173 err = ezload_download(dev, *names, buf, buflen);
174 free(buf, M_DEVBUF);
175 if (err)
176 return (err);
177 names++;
178 }
179 if (err)
180 return (err);
181 usbd_delay_ms(dev, 250);
182 /*(void)ezload_reset(dev, 0);*/
183 err = ezload_reset(dev, 0);
184 usbd_delay_ms(dev, 250);
185 return (err);
186 }
187