Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * Copyright (C) 2002-2005 by David Brownell
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) // #define	DEBUG			// error path messages, extra info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) // #define	VERBOSE			// more; success messages
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/ethtool.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/mii.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/crc32.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/usb/cdc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/usb/usbnet.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)  * All known Zaurii lie about their standards conformance.  At least
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23)  * the earliest SA-1100 models lie by saying they support CDC Ethernet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)  * Some later models (especially PXA-25x and PXA-27x based ones) lie
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  * and say they support CDC MDLM (for access to cell phone modems).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27)  * There are non-Zaurus products that use these same protocols too.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29)  * The annoying thing is that at the same time Sharp was developing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30)  * that annoying standards-breaking software, the Linux community had
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31)  * a simple "CDC Subset" working reliably on the same SA-1100 hardware.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32)  * That is, the same functionality but not violating standards.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34)  * The CDC Ethernet nonconformance points are troublesome to hosts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35)  * with a true CDC Ethernet implementation:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36)  *   - Framing appends a CRC, which the spec says drivers "must not" do;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37)  *   - Transfers data in altsetting zero, instead of altsetting 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38)  *   - All these peripherals use the same ethernet address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40)  * The CDC MDLM nonconformance is less immediately troublesome, since all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41)  * MDLM implementations are quasi-proprietary anyway.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) static struct sk_buff *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) zaurus_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	int			padlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	struct sk_buff		*skb2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	padlen = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	if (!skb_cloned(skb)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		int	tailroom = skb_tailroom(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 		if ((padlen + 4) <= tailroom)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 			goto done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	skb2 = skb_copy_expand(skb, 0, 4 + padlen, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	dev_kfree_skb_any(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	skb = skb2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	if (skb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		u32		fcs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) done:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 		fcs = crc32_le(~0, skb->data, skb->len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		fcs = ~fcs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 		skb_put_u8(skb, fcs & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		skb_put_u8(skb, (fcs >> 8) & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		skb_put_u8(skb, (fcs >> 16) & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		skb_put_u8(skb, (fcs >> 24) & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	return skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) static int zaurus_bind(struct usbnet *dev, struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	/* Belcarra's funky framing has other options; mostly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	 * TRAILERS (!) with 4 bytes CRC, and maybe 2 pad bytes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	dev->net->hard_header_len += 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	dev->rx_urb_size = dev->net->hard_header_len + dev->net->mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	return usbnet_generic_cdc_bind(dev, intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) /* PDA style devices are always connected if present */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) static int always_connected (struct usbnet *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) static const struct driver_info	zaurus_sl5x00_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	.description =	"Sharp Zaurus SL-5x00",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	.flags =	FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	.check_connect = always_connected,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	.bind =		zaurus_bind,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	.unbind =	usbnet_cdc_unbind,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	.tx_fixup =	zaurus_tx_fixup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) #define	ZAURUS_STRONGARM_INFO	((unsigned long)&zaurus_sl5x00_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) static const struct driver_info	zaurus_pxa_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	.description =	"Sharp Zaurus, PXA-2xx based",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	.flags =	FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	.check_connect = always_connected,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	.bind =		zaurus_bind,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	.unbind =	usbnet_cdc_unbind,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	.tx_fixup =	zaurus_tx_fixup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #define	ZAURUS_PXA_INFO		((unsigned long)&zaurus_pxa_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static const struct driver_info	olympus_mxl_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	.description =	"Olympus R1000",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	.flags =	FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	.check_connect = always_connected,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	.bind =		zaurus_bind,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	.unbind =	usbnet_cdc_unbind,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	.tx_fixup =	zaurus_tx_fixup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #define	OLYMPUS_MXL_INFO	((unsigned long)&olympus_mxl_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) /* Some more recent products using Lineo/Belcarra code will wrongly claim
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)  * CDC MDLM conformance.  They aren't conformant:  data endpoints live
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)  * in the control interface, there's no data interface, and it's not used
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)  * to talk to a cell phone radio.  But at least we can detect these two
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)  * pseudo-classes, rather than growing this product list with entries for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)  * each new nonconformant product (sigh).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static const u8 safe_guid[16] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	0x5d, 0x34, 0xcf, 0x66, 0x11, 0x18, 0x11, 0xd6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	0xa2, 0x1a, 0x00, 0x01, 0x02, 0xca, 0x9a, 0x7f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static const u8 blan_guid[16] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	0x74, 0xf0, 0x3d, 0xbd, 0x1e, 0xc1, 0x44, 0x70,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	0xa3, 0x67, 0x71, 0x34, 0xc9, 0xf5, 0x54, 0x37,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static int blan_mdlm_bind(struct usbnet *dev, struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	u8				*buf = intf->cur_altsetting->extra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	int				len = intf->cur_altsetting->extralen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	struct usb_cdc_mdlm_desc	*desc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	struct usb_cdc_mdlm_detail_desc	*detail = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	while (len > 3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		if (buf [1] != USB_DT_CS_INTERFACE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 			goto next_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		/* use bDescriptorSubType, and just verify that we get a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 		 * "BLAN" (or "SAFE") descriptor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		switch (buf [2]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		case USB_CDC_MDLM_TYPE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 			if (desc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 				dev_dbg(&intf->dev, "extra MDLM\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 				goto bad_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 			desc = (void *) buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 			if (desc->bLength != sizeof *desc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 				dev_dbg(&intf->dev, "MDLM len %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 					desc->bLength);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 				goto bad_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 			/* expect bcdVersion 1.0, ignore */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 			if (memcmp(&desc->bGUID, blan_guid, 16) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 			    memcmp(&desc->bGUID, safe_guid, 16)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 				/* hey, this one might _really_ be MDLM! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 				dev_dbg(&intf->dev, "MDLM guid\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 				goto bad_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 		case USB_CDC_MDLM_DETAIL_TYPE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 			if (detail) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 				dev_dbg(&intf->dev, "extra MDLM detail\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 				goto bad_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 			detail = (void *) buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 			switch (detail->bGuidDescriptorType) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 			case 0:			/* "SAFE" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 				if (detail->bLength != (sizeof *detail + 2))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 					goto bad_detail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 			case 1:			/* "BLAN" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 				if (detail->bLength != (sizeof *detail + 3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 					goto bad_detail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 			default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 				goto bad_detail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 			/* assuming we either noticed BLAN already, or will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 			 * find it soon, there are some data bytes here:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 			 *  - bmNetworkCapabilities (unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 			 *  - bmDataCapabilities (bits, see below)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 			 *  - bPad (ignored, for PADAFTER -- BLAN-only)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 			 * bits are:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 			 *  - 0x01 -- Zaurus framing (add CRC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 			 *  - 0x02 -- PADBEFORE (CRC includes some padding)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 			 *  - 0x04 -- PADAFTER (some padding after CRC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 			 *  - 0x08 -- "fermat" packet mangling (for hw bugs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 			 * the PADBEFORE appears not to matter; we interop
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 			 * with devices that use it and those that don't.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 			 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 			if ((detail->bDetailData[1] & ~0x02) != 0x01) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 				/* bmDataCapabilities == 0 would be fine too,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 				 * but framing is minidriver-coupled for now.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 				 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) bad_detail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 				dev_dbg(&intf->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 						"bad MDLM detail, %d %d %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 						detail->bLength,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 						detail->bDetailData[0],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 						detail->bDetailData[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 				goto bad_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 			/* same extra framing as for non-BLAN mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 			dev->net->hard_header_len += 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 			dev->rx_urb_size = dev->net->hard_header_len
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 					+ dev->net->mtu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) next_desc:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		len -= buf [0];	/* bLength */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 		buf += buf [0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	if (!desc || !detail) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		dev_dbg(&intf->dev, "missing cdc mdlm %s%sdescriptor\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 			desc ? "" : "func ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 			detail ? "" : "detail ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 		goto bad_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	/* There's probably a CDC Ethernet descriptor there, but we can't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	 * rely on the Ethernet address it provides since not all vendors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	 * bother to make it unique.  Likewise there's no point in tracking
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	 * of the CDC event notifications.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	return usbnet_get_endpoints(dev, intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) bad_desc:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	dev_info(&dev->udev->dev, "unsupported MDLM descriptors\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) static const struct driver_info	bogus_mdlm_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	.description =	"pseudo-MDLM (BLAN) device",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	.flags =	FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	.check_connect = always_connected,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	.tx_fixup =	zaurus_tx_fixup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	.bind =		blan_mdlm_bind,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) static const struct usb_device_id	products [] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) #define	ZAURUS_MASTER_INTERFACE \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	.bInterfaceClass	= USB_CLASS_COMM, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	.bInterfaceSubClass	= USB_CDC_SUBCLASS_ETHERNET, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	.bInterfaceProtocol	= USB_CDC_PROTO_NONE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) #define ZAURUS_FAKE_INTERFACE \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	.bInterfaceClass	= USB_CLASS_COMM, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	.bInterfaceSubClass	= USB_CDC_SUBCLASS_MDLM, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	.bInterfaceProtocol	= USB_CDC_PROTO_NONE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) /* SA-1100 based Sharp Zaurus ("collie"), or compatible. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 			  | USB_DEVICE_ID_MATCH_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	.idVendor		= 0x04DD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	.idProduct		= 0x8004,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	ZAURUS_MASTER_INTERFACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	.driver_info = ZAURUS_STRONGARM_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) /* PXA-2xx based models are also lying-about-cdc.  If you add any
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)  * more devices that claim to be CDC Ethernet, make sure they get
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)  * added to the blacklist in cdc_ether too.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)  * NOTE:  OpenZaurus versions with 2.6 kernels won't use these entries,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)  * unlike the older ones with 2.4 "embedix" kernels.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 			  | USB_DEVICE_ID_MATCH_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	.idVendor		= 0x04DD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	.idProduct		= 0x8005,	/* A-300 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	ZAURUS_MASTER_INTERFACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	.driver_info = ZAURUS_PXA_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 			  | USB_DEVICE_ID_MATCH_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	.idVendor		= 0x04DD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	.idProduct		= 0x8006,	/* B-500/SL-5600 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	ZAURUS_MASTER_INTERFACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	.driver_info = ZAURUS_PXA_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	          | USB_DEVICE_ID_MATCH_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	.idVendor		= 0x04DD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	.idProduct		= 0x8007,	/* C-700 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	ZAURUS_MASTER_INTERFACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	.driver_info = ZAURUS_PXA_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 		 | USB_DEVICE_ID_MATCH_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	.idVendor               = 0x04DD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	.idProduct              = 0x9031,	/* C-750 C-760 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	ZAURUS_MASTER_INTERFACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 	.driver_info = ZAURUS_PXA_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	/* C-750/C-760/C-860/SL-C3000 PDA in MDLM mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	USB_DEVICE_AND_INTERFACE_INFO(0x04DD, 0x9031, USB_CLASS_COMM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 			USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	.driver_info = (unsigned long) &bogus_mdlm_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 		 | USB_DEVICE_ID_MATCH_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	.idVendor               = 0x04DD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	.idProduct              = 0x9032,	/* SL-6000 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	ZAURUS_MASTER_INTERFACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	.driver_info = ZAURUS_PXA_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 			    | USB_DEVICE_ID_MATCH_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	.idVendor		= 0x04DD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	.idProduct		= 0x9032,	/* SL-6000 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	ZAURUS_FAKE_INTERFACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	.driver_info = (unsigned long)&bogus_mdlm_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 		 | USB_DEVICE_ID_MATCH_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	.idVendor               = 0x04DD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	/* reported with some C860 units */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	.idProduct              = 0x9050,	/* C-860 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	ZAURUS_MASTER_INTERFACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 	.driver_info = ZAURUS_PXA_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	/* Motorola Rokr E6 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x6027, USB_CLASS_COMM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 			USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	.driver_info = (unsigned long) &bogus_mdlm_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 	/* Motorola MOTOMAGX phones */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 	USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x6425, USB_CLASS_COMM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 			USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 	.driver_info = (unsigned long) &bogus_mdlm_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) /* Olympus has some models with a Zaurus-compatible option.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)  * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 		 | USB_DEVICE_ID_MATCH_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	.idVendor               = 0x07B4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 	.idProduct              = 0x0F02,	/* R-1000 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 	ZAURUS_MASTER_INTERFACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 	.driver_info = OLYMPUS_MXL_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 	USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 			USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	.driver_info = (unsigned long) &bogus_mdlm_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 	{ },		// END
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) MODULE_DEVICE_TABLE(usb, products);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) static struct usb_driver zaurus_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 	.name =		"zaurus",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 	.id_table =	products,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 	.probe =	usbnet_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	.disconnect =	usbnet_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	.suspend =	usbnet_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 	.resume =	usbnet_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 	.disable_hub_initiated_lpm = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) module_usb_driver(zaurus_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) MODULE_AUTHOR("Pavel Machek, David Brownell");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) MODULE_DESCRIPTION("Sharp Zaurus PDA, and compatible products");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) MODULE_LICENSE("GPL");