| 1 | /* $NetBSD: ezload.c,v 1.16 2016/04/23 10:15:31 skrll Exp $ */ |
| 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 | */ |
| 31 | |
| 32 | #include <sys/cdefs.h> |
| 33 | __KERNEL_RCSID(0, "$NetBSD: ezload.c,v 1.16 2016/04/23 10:15:31 skrll Exp $" ); |
| 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> |
| 44 | #include <dev/usb/usbdivar.h> |
| 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 | |
| 78 | #ifdef EZLOAD_DEBUG |
| 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 |
| 88 | ezload_reset(struct usbd_device *dev, int reset) |
| 89 | { |
| 90 | usb_device_request_t req; |
| 91 | uByte rst; |
| 92 | |
| 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); |
| 101 | return usbd_do_request(dev, &req, &rst); |
| 102 | } |
| 103 | |
| 104 | usbd_status |
| 105 | ezload_download(struct usbd_device *dev, const struct ezdata *rec) |
| 106 | { |
| 107 | usb_device_request_t req; |
| 108 | const struct ezdata *ptr; |
| 109 | u_int len, offs; |
| 110 | int err; |
| 111 | |
| 112 | DPRINTF(("ezload_down record=%p\n" , rec)); |
| 113 | |
| 114 | for (ptr = rec; ptr->length != 0; ptr++) { |
| 115 | |
| 116 | #if 0 |
| 117 | if (ptr->address + ptr->length > ANCHOR_MAX_INTERNAL_ADDRESS) |
| 118 | return USBD_INVAL; |
| 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); |
| 130 | DPRINTFN(2,("ezload_download: addr=0x%x len=%d\n" , |
| 131 | ptr->address + offs, len)); |
| 132 | /*XXXUNCONST*/ |
| 133 | err = usbd_do_request(dev, &req, |
| 134 | __UNCONST(ptr->data + offs)); |
| 135 | if (err) |
| 136 | return err; |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | return 0; |
| 141 | } |
| 142 | |
| 143 | usbd_status |
| 144 | ezload_downloads_and_reset(struct usbd_device *dev, const struct ezdata **recs) |
| 145 | { |
| 146 | usbd_status err; |
| 147 | |
| 148 | /*(void)ezload_reset(dev, 1);*/ |
| 149 | err = ezload_reset(dev, 1); |
| 150 | if (err) |
| 151 | return err; |
| 152 | usbd_delay_ms(dev, 250); |
| 153 | while (*recs != NULL) { |
| 154 | err = ezload_download(dev, *recs++); |
| 155 | if (err) |
| 156 | return err; |
| 157 | } |
| 158 | usbd_delay_ms(dev, 250); |
| 159 | err = ezload_reset(dev, 0); |
| 160 | usbd_delay_ms(dev, 250); |
| 161 | return err; |
| 162 | } |
| 163 | |