Annotation of src/sys/dev/usb/ezload.c, Revision 1.15.14.2
1.15.14.2! skrll 1: /* $NetBSD: ezload.c,v 1.15.14.1 2014/12/23 11:24:31 skrll Exp $ */
1.1 augustss 2:
3: /*
4: * Copyright (c) 2000 The NetBSD Foundation, Inc.
5: * All rights reserved.
6: *
7: * This code is derived from software contributed to The NetBSD Foundation
8: * by Lennart Augustsson <lennart@augustsson.net>.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29: * POSSIBILITY OF SUCH DAMAGE.
30: */
1.4 lukem 31:
32: #include <sys/cdefs.h>
1.15.14.2! skrll 33: __KERNEL_RCSID(0, "$NetBSD: ezload.c,v 1.15.14.1 2014/12/23 11:24:31 skrll Exp $");
1.1 augustss 34:
35: #include <sys/param.h>
36: #include <sys/systm.h>
37: #include <sys/kernel.h>
38: #include <sys/device.h>
39: #include <sys/conf.h>
40:
41: #include <dev/usb/usb.h>
42: #include <dev/usb/usbdi.h>
43: #include <dev/usb/usbdi_util.h>
1.13 mrg 44: #include <dev/usb/usbdivar.h>
1.1 augustss 45:
46: #include <dev/usb/ezload.h>
47:
48: /*
49: * Vendor specific request code for Anchor Upload/Download
50: */
51:
52: /* This one is implemented in the core */
53: #define ANCHOR_LOAD_INTERNAL 0xA0
54:
55: /* This is the highest internal RAM address for the AN2131Q */
56: #define ANCHOR_MAX_INTERNAL_ADDRESS 0x1B3F
57:
58: /*
59: * EZ-USB Control and Status Register. Bit 0 controls 8051 reset
60: */
61: #define ANCHOR_CPUCS_REG 0x7F92
62: #define ANCHOR_RESET 0x01
63:
64: /*
65: * Although USB does not limit you here, the Anchor docs
66: * quote 64 as a limit, and Mato@activewireinc.com suggested
67: * to use 16.
68: */
69: #define ANCHOR_CHUNK 16
70:
71: /*
72: * This is a firmware loader for ezusb (Anchor) devices. When the firmware
73: * has been downloaded the device will simulate a disconnect and when it
74: * is next recognized by the USB software it will appear as another
75: * device.
76: */
77:
1.15 christos 78: #ifdef EZLOAD_DEBUG
1.1 augustss 79: #define DPRINTF(x) if (ezloaddebug) printf x
80: #define DPRINTFN(n,x) if (ezloaddebug>(n)) printf x
81: int ezloaddebug = 0;
82: #else
83: #define DPRINTF(x)
84: #define DPRINTFN(n,x)
85: #endif
86:
87: usbd_status
1.15.14.2! skrll 88: ezload_reset(struct usbd_device *dev, int reset)
1.1 augustss 89: {
90: usb_device_request_t req;
91: uByte rst;
1.5 augustss 92:
1.1 augustss 93: DPRINTF(("ezload_reset: reset=%d\n", reset));
94:
95: rst = reset ? ANCHOR_RESET : 0;
96: req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
97: req.bRequest = ANCHOR_LOAD_INTERNAL;
98: USETW(req.wValue, ANCHOR_CPUCS_REG);
99: USETW(req.wIndex, 0);
100: USETW(req.wLength, 1);
1.15.14.1 skrll 101: return usbd_do_request(dev, &req, &rst);
1.1 augustss 102: }
103:
104: usbd_status
1.15.14.2! skrll 105: ezload_download(struct usbd_device *dev, const struct ezdata *rec)
1.1 augustss 106: {
107: usb_device_request_t req;
1.2 jdolecek 108: const struct ezdata *ptr;
1.1 augustss 109: u_int len, offs;
1.8 mycroft 110: int err;
1.5 augustss 111:
1.1 augustss 112: DPRINTF(("ezload_down record=%p\n", rec));
1.5 augustss 113:
1.1 augustss 114: for (ptr = rec; ptr->length != 0; ptr++) {
115:
116: #if 0
117: if (ptr->address + ptr->length > ANCHOR_MAX_INTERNAL_ADDRESS)
1.15.14.1 skrll 118: return USBD_INVAL;
1.1 augustss 119: #endif
120:
121: req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
122: req.bRequest = ANCHOR_LOAD_INTERNAL;
123: USETW(req.wIndex, 0);
124: for (offs = 0; offs < ptr->length; offs += ANCHOR_CHUNK) {
125: len = ptr->length - offs;
126: if (len > ANCHOR_CHUNK)
127: len = ANCHOR_CHUNK;
128: USETW(req.wValue, ptr->address + offs);
129: USETW(req.wLength, len);
1.3 augustss 130: DPRINTFN(2,("ezload_download: addr=0x%x len=%d\n",
1.1 augustss 131: ptr->address + offs, len));
1.9 christos 132: /*XXXUNCONST*/
133: err = usbd_do_request(dev, &req,
134: __UNCONST(ptr->data + offs));
1.1 augustss 135: if (err)
1.15.14.1 skrll 136: return err;
1.1 augustss 137: }
138: }
1.5 augustss 139:
1.15.14.1 skrll 140: return 0;
1.1 augustss 141: }
142:
143: usbd_status
1.15.14.2! skrll 144: ezload_downloads_and_reset(struct usbd_device *dev, const struct ezdata **recs)
1.1 augustss 145: {
146: usbd_status err;
147:
1.3 augustss 148: /*(void)ezload_reset(dev, 1);*/
1.1 augustss 149: err = ezload_reset(dev, 1);
150: if (err)
1.15.14.1 skrll 151: return err;
1.1 augustss 152: usbd_delay_ms(dev, 250);
153: while (*recs != NULL) {
154: err = ezload_download(dev, *recs++);
155: if (err)
1.15.14.1 skrll 156: return err;
1.1 augustss 157: }
158: usbd_delay_ms(dev, 250);
159: err = ezload_reset(dev, 0);
160: usbd_delay_ms(dev, 250);
1.15.14.1 skrll 161: return err;
1.1 augustss 162: }
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