20240107移远的4G模块EC20在Firefly的AIO-3399J开发板的Android11下调通能上网
20240107移远的4G模块EC20在Firefly的AIO-3399J开发板的Android11下调通能上网
2024/1/7 11:17
开发板：Firefly的AIO-3399J【RK3399】
SDK：rk3399-android-11-r20211216.tar.xz【Android11】
Android11.0.tar.bz2.aa【ToyBrick】
Android11.0.tar.bz2.ab
Android11.0.tar.bz2.ac
https://wiki.t-firefly.com/AIO-3399J/prepare_compile_android.html
AIO-3399J产品规格书 立即购买
AIO-3399J 采用 RK3399 六核(A72x2+A53x4) 64 位处理器，主频高达1.8GHz，集成了四核 Mali-T860 GPU，性能优异。
0、简略步骤：
rootroot@rootroot-X99-Turbo:~/3TB$ cat Android11.0.tar.bz2.a* > Android11.0.tar.bz2
rootroot@rootroot-X99-Turbo:~/3TB$ tar jxvf Android11.0.tar.bz2
rootroot@rootroot-X99-Turbo:~/3TB$ mv Android11.0 64rk3399-android-11
rootroot@rootroot-X99-Turbo:~/3TB$ cd 64rk3399-android-11
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$ cd u-boot
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11/u-boot$ ./make.sh rk3399
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11/u-boot$ cd ..
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$ cd kernel/
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11/kernel$ make ARCH=arm64 rockchip_defconfig android-11.config -j36
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11/kernel$ make ARCH=arm64 BOOT_IMG=../rockdev/Image-rk3399_Android11/boot.img rk3399-sapphire-excavator-edp-avb.img -j36
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$ source build/envsetup.sh
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$ lunch
36. rk3399_Android11-userdebug
Which would you like? [aosp_arm-eng] 36
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$ make -j36
rootroot@rootroot-X99-Turbo:~/3TB/64rk3399-android-11$ ./build.sh -u
Android部分：【完全一致/相同】
1、
Z:\rk3399-android-11\device\rockchip\common\4g_modem\manifest.xml
2、复制库文件：【貌似没用？】
chat
dhcpcd
ip-down
ip-up
libmeig-ril.so
libquec-ril.so
libreference-ril-62.so
libreference-ril.so
Z:\rk3399-android-11\device\rockchip\common\ec20\chat
Z:\rk3399-android-11\device\rockchip\common\ec20\dhcpcd
Z:\rk3399-android-11\device\rockchip\common\ec20\ip-down
Z:\rk3399-android-11\device\rockchip\common\ec20\ip-up
Z:\rk3399-android-11\device\rockchip\common\ec20\libmeig-ril.so
Z:\rk3399-android-11\device\rockchip\common\ec20\libquec-ril.so
Z:\rk3399-android-11\device\rockchip\common\ec20\libreference-ril-62.so
Z:\rk3399-android-11\device\rockchip\common\ec20\libreference-ril.so
3、
Z:\rk3399-android-11\device\rockchip\common\BoardConfig.mk
#for rk 4g modem
BOARD_HAS_RK_4G_MODEM ?= false
修改为：
#for rk 4g modem 2024/1/5 23:36
BOARD_HAS_RK_4G_MODEM ?= false
#for ec20 modem 2024/1/5 22:25
BOARD_HAS_EC20_MODEM ?= true
ifeq ($(strip $(BOARD_HAS_EC20_MODEM)),true)
DEVICE_MANIFEST_FILE += device/rockchip/common/4g_modem/manifest.xml
endif
#for ec20 modem 2024/1/7 22:25
4、
Z:\rk3399-android-11\device\rockchip\common\device.mk
ifeq ($(strip $(TARGET_ARCH)), arm64)
PRODUCT_PROPERTY_OVERRIDES += \
vendor.rild.libpath=/vendor/lib64/librk-ril.so
PRODUCT_COPY_FILES += \
$(LOCAL_PATH)/4g_modem/bin64/dhcpcd:$(TARGET_COPY_OUT_VENDOR)/bin/dhcpcd \
$(LOCAL_PATH)/4g_modem/lib64/librk-ril.so:$(TARGET_COPY_OUT_VENDOR)/lib64/librk-ril.so
else
PRODUCT_PROPERTY_OVERRIDES += \
vendor.rild.libpath=/vendor/lib/librk-ril.so
PRODUCT_COPY_FILES += \
$(LOCAL_PATH)/4g_modem/bin32/dhcpcd:$(TARGET_COPY_OUT_VENDOR)/bin/dhcpcd \
$(LOCAL_PATH)/4g_modem/lib32/librk-ril.so:$(TARGET_COPY_OUT_VENDOR)/lib/librk-ril.so
endif
endif
#for ec20 modem 2024/1/5 22:25
ifeq ($(strip $(BOARD_HAS_EC20_MODEM)),true)
PRODUCT_COPY_FILES += \
device/rockchip/common/ec20/libquec-ril.so:vendor/lib64/libquec-ril.so \
device/rockchip/common/ec20/libmeig-ril.so:vendor/lib64/libmeig-ril.so \
device/rockchip/common/ec20/chat:system/bin/chat \
device/rockchip/common/ec20/ip-up:system/etc/ppp/ip-up \
device/rockchip/common/ec20/ip-down:system/etc/ppp/ip-down \
device/rockchip/common/ec20/dhcpcd:$(TARGET_COPY_OUT_VENDOR)/bin/dhcpcd
PRODUCT_COPY_FILES += vendor/rockchip/common/phone/etc/apns-full-conf.xml:$(TARGET_COPY_OUT_PRODUCT)/etc/apns-conf.xml
PRODUCT_PACKAGES += \
rild \
dhcpcd \
CarrierDefaultApp \
CarrierConfig
PRODUCT_PROPERTY_OVERRIDES += \
ro.boot.noril=false \
ro.telephony.default_network=9
PRODUCT_PACKAGES += \
[email protected] \
[email protected]
PRODUCT_PROPERTY_OVERRIDES += \
vendor.rild.libpath=/vendor/lib64/libquec-ril.so
endif
#for ec20 modem 2024/1/7 22:25
5、
Z:\rk3399-android-11\device\rockchip\common\ueventd.rockchip.rc
# for serial
/dev/ttyS4 0660 system system
# for radio
/dev/ttyUSB* 0660 system radio
/dev/cdc-wdm0 0660 system radio
# for mali-t764
/dev/mali0 0666 system system
修改为：
# for serial
/dev/ttyS4 0660 system system
#for ec20 modem 2024/1/5 22:25
# for radio
/dev/ttyUSB* 0660 radio radio
/dev/ttyACM* 0666 radio radio
/dev/cdc-wdm* 0666 radio radio
/dev/qcqmi* 0660 radio radio
#for ec20 modem 2024/1/5 22:25
# for mali-t764
/dev/mali0 0666 system system
6、
Z:\rk3399-android-11\device\rockchip\rk3399\rk3399_Android11\overlay\frameworks\base\core\res\res\values\config.xml
【不用修改】
Z:\rk3399-android-11\device\rockchip\rk3399\device.mk
7、
Z:\rk3399-android-11\kernel\drivers\net\usb\Makefile
# SPDX-License-Identifier: GPL-2.0
#
# Makefile for USB Network drivers
#
obj-$(CONFIG_USB_CATC) += catc.o
obj-$(CONFIG_USB_KAWETH) += kaweth.o
obj-$(CONFIG_USB_PEGASUS) += pegasus.o
obj-$(CONFIG_USB_RTL8150) += rtl8150.o
obj-$(CONFIG_USB_RTL8152) += r8152.o
obj-$(CONFIG_USB_HSO) += hso.o
obj-$(CONFIG_USB_LAN78XX) += lan78xx.o
obj-$(CONFIG_USB_NET_AX8817X) += asix.o
asix-y := asix_devices.o asix_common.o ax88172a.o
obj-$(CONFIG_USB_NET_AX88179_178A) += ax88179_178a.o
obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o
obj-$(CONFIG_USB_NET_CDC_EEM) += cdc_eem.o
obj-$(CONFIG_USB_NET_DM9601) += dm9601.o
obj-$(CONFIG_USB_NET_SR9700) += sr9700.o
obj-$(CONFIG_USB_NET_SR9800) += sr9800.o
obj-$(CONFIG_USB_NET_SMSC75XX) += smsc75xx.o
obj-$(CONFIG_USB_NET_SMSC95XX) += smsc95xx.o
obj-$(CONFIG_USB_NET_GL620A) += gl620a.o
obj-$(CONFIG_USB_NET_NET1080) += net1080.o
obj-$(CONFIG_USB_NET_PLUSB) += plusb.o
obj-$(CONFIG_USB_NET_RNDIS_HOST) += rndis_host.o
obj-$(CONFIG_USB_NET_CDC_SUBSET_ENABLE) += cdc_subset.o
obj-$(CONFIG_USB_NET_ZAURUS) += zaurus.o
obj-$(CONFIG_USB_NET_MCS7830) += mcs7830.o
obj-$(CONFIG_USB_USBNET) += usbnet.o
obj-$(CONFIG_USB_NET_INT51X1) += int51x1.o
obj-$(CONFIG_USB_CDC_PHONET) += cdc-phonet.o
obj-$(CONFIG_USB_NET_KALMIA) += kalmia.o
obj-$(CONFIG_USB_IPHETH) += ipheth.o
obj-$(CONFIG_USB_SIERRA_NET) += sierra_net.o
obj-$(CONFIG_USB_NET_CX82310_ETH) += cx82310_eth.o
obj-$(CONFIG_USB_NET_CDC_NCM) += cdc_ncm.o
obj-$(CONFIG_USB_NET_HUAWEI_CDC_NCM) += huawei_cdc_ncm.o
obj-$(CONFIG_USB_VL600) += lg-vl600.o
#obj-$(CONFIG_USB_NET_QMI_WWAN) += qmi_wwan.o
obj-$(CONFIG_USB_NET_QMI_WWAN) += qmi_wwan_q.o
obj-$(CONFIG_USB_NET_CDC_MBIM) += cdc_mbim.o
obj-$(CONFIG_USB_NET_CH9200) += ch9200.o
Z:\rk3399-android-11\kernel\drivers\net\usb\qmi_wwan_q.c
/*
* Copyright (c) 2012 Bjørn Mork
*
* The probing code is heavily inspired by cdc_ether, which is:
* Copyright (C) 2003-2005 by David Brownell
* Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
/* This driver supports wwan (3G/LTE/?) devices using a vendor
* specific management protocol called Qualcomm MSM Interface (QMI) -
* in addition to the more common AT commands over serial interface
* management
*
* QMI is wrapped in CDC, using CDC encapsulated commands on the
* control ("master") interface of a two-interface CDC Union
* resembling standard CDC ECM. The devices do not use the control
* interface for any other CDC messages. Most likely because the
* management protocol is used in place of the standard CDC
* notifications NOTIFY_NETWORK_CONNECTION and NOTIFY_SPEED_CHANGE
*
* Alternatively, control and data functions can be combined in a
* single USB interface.
*
* Handling a protocol like QMI is out of the scope for any driver.
* It is exported as a character device using the cdc-wdm driver as
* a subdriver, enabling userspace applications ("modem managers") to
* handle it.
*
* These devices may alternatively/additionally be configured using AT
* commands on a serial interface
*/
/* driver specific data */
struct qmi_wwan_state {
struct usb_driver *subdriver;
atomic_t pmcount;
unsigned long unused;
struct usb_interface *control;
struct usb_interface *data;
};
/* default ethernet address used by the modem */
static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3};
#if 1 //Added by Quectel
#include
#include
#include
#include
/*
Quectel_WCDMA<E_Linux_USB_Driver_User_Guide_V1.9.pdf
5.6. Test QMAP on GobiNet or QMI WWAN
0 - no QMAP
1 - QMAP (Aggregation protocol)
X - QMAP (Multiplexing and Aggregation protocol)
*/
#define QUECTEL_WWAN_QMAP 4
#if defined(QUECTEL_WWAN_QMAP)
#define QUECTEL_QMAP_MUX_ID 0x81
static uint __read_mostly qmap_mode = 0;
module_param( qmap_mode, uint, S_IRUGO);
module_param_named( rx_qmap, qmap_mode, uint, S_IRUGO );
#endif
#ifdef CONFIG_BRIDGE
//#define QUECTEL_BRIDGE_MODE
#endif
#ifdef QUECTEL_BRIDGE_MODE
static uint __read_mostly bridge_mode = BIT(0)/*|BIT(1)*/;
module_param( bridge_mode, uint, S_IRUGO );
#endif
#if defined(QUECTEL_WWAN_QMAP)
typedef struct sQmiWwanQmap
{
struct usbnet *mpNetDev;
atomic_t refcount;
struct net_device *mpQmapNetDev[QUECTEL_WWAN_QMAP];
uint link_state;
uint qmap_mode;
#ifdef QUECTEL_BRIDGE_MODE
uint bridge_mode;
uint bridge_ipv4;
unsigned char bridge_mac[ETH_ALEN];
#endif
} sQmiWwanQmap;
struct qmap_priv {
struct net_device *real_dev;
u8 offset_id;
#ifdef QUECTEL_BRIDGE_MODE
uint bridge_mode;
uint bridge_ipv4;
unsigned char bridge_mac[ETH_ALEN];
#endif
};
struct qmap_hdr {
u8 cd_rsvd_pad;
u8 mux_id;
u16 pkt_len;
} __packed;
#ifdef QUECTEL_BRIDGE_MODE
static int is_qmap_netdev(const struct net_device *netdev);
#endif
#endif
#ifdef QUECTEL_BRIDGE_MODE
static int bridge_arp_reply(struct net_device *net, struct sk_buff *skb, uint bridge_ipv4) {
struct arphdr *parp;
u8 *arpptr, *sha;
u8 sip[4], tip[4], ipv4[4];
struct sk_buff *reply = NULL;
ipv4[0] = (bridge_ipv4 >> 24) & 0xFF;
ipv4[1] = (bridge_ipv4 >> 16) & 0xFF;
ipv4[2] = (bridge_ipv4 >> 8) & 0xFF;
ipv4[3] = (bridge_ipv4 >> 0) & 0xFF;
parp = arp_hdr(skb);
if (parp->ar_hrd == htons(ARPHRD_ETHER) && parp->ar_pro == htons(ETH_P_IP)
&& parp->ar_op == htons(ARPOP_REQUEST) && parp->ar_hln == 6 && parp->ar_pln == 4) {
arpptr = (u8 *)parp + sizeof(struct arphdr);
sha = arpptr;
arpptr += net->addr_len; /* sha */
memcpy(sip, arpptr, sizeof(sip));
arpptr += sizeof(sip);
arpptr += net->addr_len; /* tha */
memcpy(tip, arpptr, sizeof(tip));
pr_info("%s sip = %d.%d.%d.%d, tip=%d.%d.%d.%d, ipv4=%d.%d.%d.%d\n", netdev_name(net),
sip[0], sip[1], sip[2], sip[3], tip[0], tip[1], tip[2], tip[3], ipv4[0], ipv4[1], ipv4[2], ipv4[3]);
//wwan0 sip = 10.151.137.255, tip=10.151.138.0, ipv4=10.151.137.255
if (tip[0] == ipv4[0] && tip[1] == ipv4[1] && (tip[2]&0xFC) == (ipv4[2]&0xFC) && tip[3] != ipv4[3])
reply = arp_create(ARPOP_REPLY, ETH_P_ARP, *((__be32 *)sip), net, *((__be32 *)tip), sha, default_modem_addr, sha);
if (reply) {
skb_reset_mac_header(reply);
__skb_pull(reply, skb_network_offset(reply));
reply->ip_summed = CHECKSUM_UNNECESSARY;
reply->pkt_type = PACKET_HOST;
netif_rx_ni(reply);
}
return 1;
}
return 0;
}
static struct sk_buff *bridge_mode_tx_fixup(struct net_device *net, struct sk_buff *skb, uint bridge_ipv4, unsigned char *bridge_mac) {
struct ethhdr *ehdr;
const struct iphdr *iph;
skb_reset_mac_header(skb);
ehdr = eth_hdr(skb);
if (ehdr->h_proto == htons(ETH_P_ARP)) {
if (bridge_ipv4)
bridge_arp_reply(net, skb, bridge_ipv4);
return NULL;
}
iph = ip_hdr(skb);
//DBG("iphdr: ");
//PrintHex((void *)iph, sizeof(struct iphdr));
// 1 0.000000000 0.0.0.0 255.255.255.255 DHCP 362 DHCP Request - Transaction ID 0xe7643ad7
if (ehdr->h_proto == htons(ETH_P_IP) && iph->protocol == IPPROTO_UDP && iph->saddr == 0x00000000 && iph->daddr == 0xFFFFFFFF) {
//if (udp_hdr(skb)->dest == htons(67)) //DHCP Request
{
memcpy(bridge_mac, ehdr->h_source, ETH_ALEN);
pr_info("%s PC Mac Address: %02x:%02x:%02x:%02x:%02x:%02x\n", netdev_name(net),
bridge_mac[0], bridge_mac[1], bridge_mac[2], bridge_mac[3], bridge_mac[4], bridge_mac[5]);
}
}
if (memcmp(ehdr->h_source, bridge_mac, ETH_ALEN)) {
return NULL;
}
return skb;
}
#endif
#if defined(QUECTEL_WWAN_QMAP)
static ssize_t qmap_mode_show(struct device *dev, struct device_attribute *attr, char *buf) {
struct net_device *netdev = to_net_dev(dev);
struct usbnet * usbnetdev = netdev_priv( netdev );
struct qmi_wwan_state *info = (void *)&usbnetdev->data;
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)info->unused;
return snprintf(buf, PAGE_SIZE, "%d\n", pQmapDev->qmap_mode);
}
static DEVICE_ATTR(qmap_mode, S_IRUGO, qmap_mode_show, NULL);
static ssize_t link_state_show(struct device *dev, struct device_attribute *attr, char *buf) {
struct net_device *netdev = to_net_dev(dev);
struct usbnet * usbnetdev = netdev_priv( netdev );
struct qmi_wwan_state *info = (void *)&usbnetdev->data;
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)info->unused;
return snprintf(buf, PAGE_SIZE, "0x%x\n", pQmapDev->link_state);
}
static ssize_t link_state_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) {
struct net_device *netdev = to_net_dev(dev);
struct usbnet * usbnetdev = netdev_priv( netdev );
struct qmi_wwan_state *info = (void *)&usbnetdev->data;
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)info->unused;
unsigned link_state = 0;
unsigned old_link = pQmapDev->link_state;
link_state = simple_strtoul(buf, NULL, 0);
if (pQmapDev->qmap_mode == 1)
pQmapDev->link_state = !!link_state;
else if (pQmapDev->qmap_mode > 1) {
if (0 < link_state && link_state <= pQmapDev->qmap_mode)
pQmapDev->link_state |= (1 << (link_state - 1));
else if (0x80 < link_state && link_state <= (0x80 + pQmapDev->qmap_mode))
pQmapDev->link_state &= ~(1 << ((link_state&0xF) - 1));
}
if (old_link != pQmapDev->link_state)
dev_info(dev, "link_state 0x%x -> 0x%x\n", old_link, pQmapDev->link_state);
return count;
}
#ifdef QUECTEL_BRIDGE_MODE
static ssize_t bridge_mode_show(struct device *dev, struct device_attribute *attr, char *buf) {
struct net_device *netdev = to_net_dev(dev);
uint bridge_mode = 0;
if (is_qmap_netdev(netdev)) {
struct qmap_priv *priv = netdev_priv(netdev);
bridge_mode = priv->bridge_mode;
}
else {
struct usbnet * usbnetdev = netdev_priv( netdev );
struct qmi_wwan_state *info = (void *)&usbnetdev->data;
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)info->unused;
bridge_mode = pQmapDev->bridge_mode;
}
return snprintf(buf, PAGE_SIZE, "%u\n", bridge_mode);
}
static ssize_t bridge_ipv4_show(struct device *dev, struct device_attribute *attr, char *buf) {
struct net_device *netdev = to_net_dev(dev);
unsigned int bridge_ipv4 = 0;
unsigned char ipv4[4];
if (is_qmap_netdev(netdev)) {
struct qmap_priv *priv = netdev_priv(netdev);
bridge_ipv4 = priv->bridge_ipv4;
}
else {
struct usbnet * usbnetdev = netdev_priv( netdev );
struct qmi_wwan_state *info = (void *)&usbnetdev->data;
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)info->unused;
bridge_ipv4 = pQmapDev->bridge_ipv4;
}
ipv4[0] = (bridge_ipv4 >> 24) & 0xFF;
ipv4[1] = (bridge_ipv4 >> 16) & 0xFF;
ipv4[2] = (bridge_ipv4 >> 8) & 0xFF;
ipv4[3] = (bridge_ipv4 >> 0) & 0xFF;
return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n", ipv4[0], ipv4[1], ipv4[2], ipv4[3]);
}
static ssize_t bridge_ipv4_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) {
struct net_device *netdev = to_net_dev(dev);
if (is_qmap_netdev(netdev)) {
struct qmap_priv *priv = netdev_priv(netdev);
priv->bridge_ipv4 = simple_strtoul(buf, NULL, 16);
}
else {
struct usbnet * usbnetdev = netdev_priv( netdev );
struct qmi_wwan_state *info = (void *)&usbnetdev->data;
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)info->unused;
pQmapDev->bridge_ipv4 = simple_strtoul(buf, NULL, 16);
}
return count;
}
#endif
static DEVICE_ATTR(link_state, S_IWUSR | S_IRUGO, link_state_show, link_state_store);
#ifdef QUECTEL_BRIDGE_MODE
static DEVICE_ATTR(bridge_mode, S_IRUGO, bridge_mode_show, NULL);
static DEVICE_ATTR(bridge_ipv4, S_IWUSR | S_IRUGO, bridge_ipv4_show, bridge_ipv4_store);
#endif
static struct attribute *qmi_wwan_sysfs_attrs[] = {
&dev_attr_link_state.attr,
&dev_attr_qmap_mode.attr,
#ifdef QUECTEL_BRIDGE_MODE
&dev_attr_bridge_mode.attr,
&dev_attr_bridge_ipv4.attr,
#endif
NULL,
};
static struct attribute_group qmi_wwan_sysfs_attr_group = {
.attrs = qmi_wwan_sysfs_attrs,
};
#ifdef QUECTEL_BRIDGE_MODE
static struct attribute *qmi_qmap_sysfs_attrs[] = {
&dev_attr_bridge_mode.attr,
&dev_attr_bridge_ipv4.attr,
NULL,
};
static struct attribute_group qmi_qmap_sysfs_attr_group = {
.attrs = qmi_qmap_sysfs_attrs,
};
#endif
static int qmap_open(struct net_device *dev)
{
struct qmap_priv *priv = netdev_priv(dev);
struct net_device *real_dev = priv->real_dev;
if (!(priv->real_dev->flags & IFF_UP))
return -ENETDOWN;
if (netif_carrier_ok(real_dev))
netif_carrier_on(dev);
return 0;
}
static int qmap_stop(struct net_device *pNet)
{
netif_carrier_off(pNet);
return 0;
}
static int qmap_start_xmit(struct sk_buff *skb, struct net_device *pNet)
{
int err;
struct qmap_priv *priv = netdev_priv(pNet);
unsigned int len;
struct qmap_hdr *hdr;
skb_reset_mac_header(skb);
#ifdef QUECTEL_BRIDGE_MODE
if (priv->bridge_mode && bridge_mode_tx_fixup(pNet, skb, priv->bridge_ipv4, priv->bridge_mac) == NULL) {
dev_kfree_skb_any (skb);
return NETDEV_TX_OK;
}
#endif
if (skb_pull(skb, ETH_HLEN) == NULL) {
dev_kfree_skb_any (skb);
return NETDEV_TX_OK;
}
len = skb->len;
hdr = (struct qmap_hdr *)skb_push(skb, sizeof(struct qmap_hdr));
hdr->cd_rsvd_pad = 0;
hdr->mux_id = QUECTEL_QMAP_MUX_ID + priv->offset_id;
hdr->pkt_len = cpu_to_be16(len);
skb->dev = priv->real_dev;
err = dev_queue_xmit(skb);
if (err == NET_XMIT_SUCCESS) {
pNet->stats.tx_packets++;
pNet->stats.tx_bytes += skb->len;
} else {
pNet->stats.tx_errors++;
}
return err;
}
static const struct net_device_ops qmap_netdev_ops = {
.ndo_open = qmap_open,
.ndo_stop = qmap_stop,
.ndo_start_xmit = qmap_start_xmit,
};
static int qmap_register_device(sQmiWwanQmap * pDev, u8 offset_id)
{
struct net_device *real_dev = pDev->mpNetDev->net;
struct net_device *qmap_net;
struct qmap_priv *priv;
int err;
qmap_net = alloc_etherdev(sizeof(*priv));
if (!qmap_net)
return -ENOBUFS;
SET_NETDEV_DEV(qmap_net, &real_dev->dev);
priv = netdev_priv(qmap_net);
priv->offset_id = offset_id;
priv->real_dev = real_dev;
sprintf(qmap_net->name, "%s.%d", real_dev->name, offset_id + 1);
qmap_net->netdev_ops = &qmap_netdev_ops;
memcpy (qmap_net->dev_addr, real_dev->dev_addr, ETH_ALEN);
#ifdef QUECTEL_BRIDGE_MODE
priv->bridge_mode = !!(pDev->bridge_mode & BIT(offset_id));
qmap_net->sysfs_groups[0] = &qmi_qmap_sysfs_attr_group;
#endif
err = register_netdev(qmap_net);
if (err < 0)
goto out_free_newdev;
netif_device_attach (qmap_net);
pDev->mpQmapNetDev[offset_id] = qmap_net;
qmap_net->flags |= IFF_NOARP;
dev_info(&real_dev->dev, "%s %s\n", __func__, qmap_net->name);
return 0;
out_free_newdev:
free_netdev(qmap_net);
return err;
}
static void qmap_unregister_device(sQmiWwanQmap * pDev, u8 offset_id) {
struct net_device *net = pDev->mpQmapNetDev[offset_id];
if (net != NULL) {
netif_carrier_off( net );
unregister_netdev (net);
free_netdev(net);
}
}
#ifdef CONFIG_ANDROID
static int qmap_ndo_do_ioctl(struct net_device *dev,struct ifreq *ifr, int cmd) {
int rc = -EOPNOTSUPP;
uint link_state = 0;
switch (cmd) {
case 0x89F1: //SIOCDEVPRIVATE
rc = copy_from_user(&link_state, ifr->ifr_ifru.ifru_data, sizeof(link_state));
if (!rc) {
char buf[32];
snprintf(buf, sizeof(buf), "%u", link_state);
link_state_store(&dev->dev, NULL, buf, strlen(buf));
}
break;
default:
break;
}
return rc;
}
#endif
#ifdef QUECTEL_BRIDGE_MODE
static int is_qmap_netdev(const struct net_device *netdev) {
return netdev->netdev_ops == &qmap_netdev_ops;
}
#endif
#endif
static struct sk_buff *qmi_wwan_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) {
//MDM9x07,MDM9628,MDM9x40,SDX20,SDX24 only work on RAW IP mode
if ((dev->driver_info->flags & FLAG_NOARP) == 0)
return skb;
// Skip Ethernet header from message
if (dev->net->hard_header_len == 0)
return skb;
else
skb_reset_mac_header(skb);
#ifdef QUECTEL_BRIDGE_MODE
{
struct qmi_wwan_state *info = (void *)&dev->data;
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)info->unused;
if (pQmapDev->bridge_mode && bridge_mode_tx_fixup(dev->net, skb, pQmapDev->bridge_ipv4, pQmapDev->bridge_mac) == NULL) {
dev_kfree_skb_any (skb);
return NULL;
}
}
#endif
if (skb_pull(skb, ETH_HLEN)) {
return skb;
} else {
dev_err(&dev->intf->dev, "Packet Dropped ");
}
// Filter the packet out, release it
dev_kfree_skb_any(skb);
return NULL;
}
#endif
/* Make up an ethernet header if the packet doesn't have one.
*
* A firmware bug common among several devices cause them to send raw
* IP packets under some circumstances. There is no way for the
* driver/host to know when this will happen. And even when the bug
* hits, some packets will still arrive with an intact header.
*
* The supported devices are only capably of sending IPv4, IPv6 and
* ARP packets on a point-to-point link. Any packet with an ethernet
* header will have either our address or a broadcast/multicast
* address as destination. ARP packets will always have a header.
*
* This means that this function will reliably add the appropriate
* header iff necessary, provided our hardware address does not start
* with 4 or 6.
*
* Another common firmware bug results in all packets being addressed
* to 00:a0:c6:00:00:00 despite the host address being different.
* This function will also fixup such packets.
*/
static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
__be16 proto;
#ifdef QUECTEL_BRIDGE_MODE
struct qmi_wwan_state *info = (void *)&dev->data;
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)info->unused;
#endif
/* This check is no longer done by usbnet */
if (skb->len < dev->net->hard_header_len)
return 0;
switch (skb->data[0] & 0xf0) {
case 0x40:
proto = htons(ETH_P_IP);
break;
case 0x60:
proto = htons(ETH_P_IPV6);
break;
case 0x00:
if (is_multicast_ether_addr(skb->data))
return 1;
/* possibly bogus destination - rewrite just in case */
skb_reset_mac_header(skb);
goto fix_dest;
default:
/* pass along other packets without modifications */
return 1;
}
if (skb_headroom(skb) < ETH_HLEN)
return 0;
skb_push(skb, ETH_HLEN);
skb_reset_mac_header(skb);
eth_hdr(skb)->h_proto = proto;
memset(eth_hdr(skb)->h_source, 0, ETH_ALEN);
#if 1 //Added by Quectel
//some kernel will drop ethernet packet which's souce mac is all zero
memcpy(eth_hdr(skb)->h_source, default_modem_addr, ETH_ALEN);
#endif
#ifdef QUECTEL_BRIDGE_MODE
if (pQmapDev->bridge_mode) {
memcpy(eth_hdr(skb)->h_dest, pQmapDev->bridge_mac, ETH_ALEN);
}
#endif
fix_dest:
memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN);
return 1;
}
#if defined(QUECTEL_WWAN_QMAP)
static struct sk_buff *qmap_qmi_wwan_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) {
struct qmi_wwan_state *info = (void *)&dev->data;
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)info->unused;
struct qmap_hdr *qhdr;
if (unlikely(pQmapDev == NULL)) {
goto drop_skb;
} else if (unlikely(pQmapDev->qmap_mode && !pQmapDev->link_state)) {
dev_dbg(&dev->net->dev, "link_state 0x%x, drop skb, len = %u\n", pQmapDev->link_state, skb->len);
goto drop_skb;
} else if (pQmapDev->qmap_mode == 0) {
return qmi_wwan_tx_fixup(dev, skb, flags);
}
else if (pQmapDev->qmap_mode > 1) {
qhdr = (struct qmap_hdr *)skb->data;
if (qhdr->cd_rsvd_pad != 0) {
goto drop_skb;
}
if ((qhdr->mux_id&0xF0) != 0x80) {
goto drop_skb;
}
return skb;
}
else {
if (qmi_wwan_tx_fixup(dev, skb, flags)) {
qhdr = (struct qmap_hdr *)skb_push(skb, sizeof(struct qmap_hdr));
qhdr->cd_rsvd_pad = 0;
qhdr->mux_id = QUECTEL_QMAP_MUX_ID;
qhdr->pkt_len = cpu_to_be16(skb->len - sizeof(struct qmap_hdr));
return skb;
}
else {
return NULL;
}
}
drop_skb:
dev_kfree_skb_any (skb);
return NULL;
}
static int qmap_qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
struct qmi_wwan_state *info = (void *)&dev->data;
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)info->unused;
static int debug_len = 0;
int debug_pkts = 0;
int update_len = skb->len;
if (pQmapDev->qmap_mode == 0)
return qmi_wwan_rx_fixup(dev, skb);
while (skb->len > sizeof(struct qmap_hdr)) {
struct qmap_hdr *qhdr = (struct qmap_hdr *)skb->data;
struct net_device *qmap_net;
struct sk_buff *qmap_skb;
#ifdef QUECTEL_BRIDGE_MODE
uint bridge_mode = 0;
unsigned char *bridge_mac;
#endif
__be16 proto;
int pkt_len;
u8 offset_id = 0;
int err;
unsigned len = (be16_to_cpu(qhdr->pkt_len) + sizeof(struct qmap_hdr));
if (skb->len < (be16_to_cpu(qhdr->pkt_len) + sizeof(struct qmap_hdr))) {
dev_info(&dev->net->dev, "drop qmap unknow pkt, len=%d, pkt_len=%d\n", skb->len, be16_to_cpu(qhdr->pkt_len));
goto out;
}
debug_pkts++;
if (qhdr->cd_rsvd_pad & 0x80) {
dev_info(&dev->net->dev, "drop qmap command packet %x\n", qhdr->cd_rsvd_pad);
goto skip_pkt;;
}
offset_id = qhdr->mux_id - QUECTEL_QMAP_MUX_ID;
if (offset_id >= pQmapDev->qmap_mode) {
dev_info(&dev->net->dev, "drop qmap unknow mux_id %x\n", qhdr->mux_id);
goto skip_pkt;
}
qmap_net = pQmapDev->mpQmapNetDev[offset_id];
if (qmap_net == NULL) {
dev_info(&dev->net->dev, "drop qmap unknow mux_id %x\n", qhdr->mux_id);
goto skip_pkt;
}
switch (skb->data[sizeof(struct qmap_hdr)] & 0xf0) {
case 0x40:
proto = htons(ETH_P_IP);
break;
case 0x60:
proto = htons(ETH_P_IPV6);
break;
default:
goto skip_pkt;
}
pkt_len = be16_to_cpu(qhdr->pkt_len) - (qhdr->cd_rsvd_pad&0x3F);
qmap_skb = netdev_alloc_skb(qmap_net, ETH_HLEN + pkt_len);
if (qmap_skb == NULL) {
dev_info(&dev->net->dev, "fail to alloc skb, pkt_len = %d\n", pkt_len);
return 0;
}
skb_reset_mac_header(qmap_skb);
memcpy(eth_hdr(qmap_skb)->h_source, default_modem_addr, ETH_ALEN);
memcpy(eth_hdr(qmap_skb)->h_dest, qmap_net->dev_addr, ETH_ALEN);
eth_hdr(qmap_skb)->h_proto = proto;
memcpy(skb_put(qmap_skb, ETH_HLEN + pkt_len) + ETH_HLEN, skb->data + sizeof(struct qmap_hdr), pkt_len);
#ifdef QUECTEL_BRIDGE_MODE
if (pQmapDev->qmap_mode > 1) {
struct qmap_priv *priv = netdev_priv(qmap_net);
bridge_mode = priv->bridge_mode;
bridge_mac = priv->bridge_mac;
}
else {
bridge_mode = pQmapDev->bridge_mode;
bridge_mac = pQmapDev->bridge_mac;
}
if (bridge_mode) {
memcpy(eth_hdr(qmap_skb)->h_dest, bridge_mac, ETH_ALEN);
}
#endif
if (pQmapDev->qmap_mode > 1) {
qmap_skb->protocol = eth_type_trans (qmap_skb, qmap_net);
memset(qmap_skb->cb, 0, sizeof(struct skb_data));
err = netif_rx(qmap_skb);
if (err == NET_RX_SUCCESS) {
qmap_net->stats.rx_packets++;
qmap_net->stats.rx_bytes += qmap_skb->len;
} else {
qmap_net->stats.rx_errors++;
}
}
else {
usbnet_skb_return(dev, qmap_skb);
}
skip_pkt:
skb_pull(skb, len);
}
out:
if (update_len > debug_len) {
debug_len = update_len;
dev_info(&dev->net->dev, "rx_pkts=%d, rx_len=%d\n", debug_pkts, debug_len);
}
return 0;
}
#endif
/* very simplistic detection of IPv4 or IPv6 headers */
static bool possibly_iphdr(const char *data)
{
return (data[0] & 0xd0) == 0x40;
}
/* disallow addresses which may be confused with IP headers */
static int qmi_wwan_mac_addr(struct net_device *dev, void *p)
{
int ret;
struct sockaddr *addr = p;
ret = eth_prepare_mac_addr_change(dev, p);
if (ret < 0)
return ret;
if (possibly_iphdr(addr->sa_data))
return -EADDRNOTAVAIL;
eth_commit_mac_addr_change(dev, p);
return 0;
}
static const struct net_device_ops qmi_wwan_netdev_ops = {
.ndo_open = usbnet_open,
.ndo_stop = usbnet_stop,
.ndo_start_xmit = usbnet_start_xmit,
.ndo_tx_timeout = usbnet_tx_timeout,
.ndo_change_mtu = usbnet_change_mtu,
.ndo_set_mac_address = qmi_wwan_mac_addr,
.ndo_validate_addr = eth_validate_addr,
#if defined(QUECTEL_WWAN_QMAP) && defined(CONFIG_ANDROID)
.ndo_do_ioctl = qmap_ndo_do_ioctl,
#endif
};
/* using a counter to merge subdriver requests with our own into a
* combined state
*/
static int qmi_wwan_manage_power(struct usbnet *dev, int on)
{
struct qmi_wwan_state *info = (void *)&dev->data;
int rv;
dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__,
atomic_read(&info->pmcount), on);
if ((on && atomic_add_return(1, &info->pmcount) == 1) ||
(!on && atomic_dec_and_test(&info->pmcount))) {
/* need autopm_get/put here to ensure the usbcore sees
* the new value
*/
rv = usb_autopm_get_interface(dev->intf);
dev->intf->needs_remote_wakeup = on;
if (!rv)
usb_autopm_put_interface(dev->intf);
}
return 0;
}
static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on)
{
struct usbnet *dev = usb_get_intfdata(intf);
/* can be called while disconnecting */
if (!dev)
return 0;
return qmi_wwan_manage_power(dev, on);
}
/* collect all three endpoints and register subdriver */
static int qmi_wwan_register_subdriver(struct usbnet *dev)
{
int rv;
struct usb_driver *subdriver = NULL;
struct qmi_wwan_state *info = (void *)&dev->data;
/* collect bulk endpoints */
rv = usbnet_get_endpoints(dev, info->data);
if (rv < 0)
goto err;
/* update status endpoint if separate control interface */
if (info->control != info->data)
dev->status = &info->control->cur_altsetting->endpoint[0];
/* require interrupt endpoint for subdriver */
if (!dev->status) {
rv = -EINVAL;
goto err;
}
/* for subdriver power management */
atomic_set(&info->pmcount, 0);
/* register subdriver */
subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc,
4096, &qmi_wwan_cdc_wdm_manage_power);
if (IS_ERR(subdriver)) {
dev_err(&info->control->dev, "subdriver registration failed\n");
rv = PTR_ERR(subdriver);
goto err;
}
/* prevent usbnet from using status endpoint */
dev->status = NULL;
/* save subdriver struct for suspend/resume wrappers */
info->subdriver = subdriver;
err:
return rv;
}
static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
{
int status = -1;
u8 *buf = intf->cur_altsetting->extra;
int len = intf->cur_altsetting->extralen;
struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
struct usb_cdc_union_desc *cdc_union = NULL;
struct usb_cdc_ether_desc *cdc_ether = NULL;
u32 found = 0;
struct usb_driver *driver = driver_of(intf);
struct qmi_wwan_state *info = (void *)&dev->data;
BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
sizeof(struct qmi_wwan_state)));
/* set up initial state */
info->control = intf;
info->data = intf;
/* and a number of CDC descriptors */
while (len > 3) {
struct usb_descriptor_header *h = (void *)buf;
/* ignore any misplaced descriptors */
if (h->bDescriptorType != USB_DT_CS_INTERFACE)
goto next_desc;
/* buf[2] is CDC descriptor subtype */
switch (buf[2]) {
case USB_CDC_HEADER_TYPE:
if (found & 1 << USB_CDC_HEADER_TYPE) {
dev_dbg(&intf->dev, "extra CDC header\n");
goto err;
}
if (h->bLength != sizeof(struct usb_cdc_header_desc)) {
dev_dbg(&intf->dev, "CDC header len %u\n",
h->bLength);
goto err;
}
break;
case USB_CDC_UNION_TYPE:
if (found & 1 << USB_CDC_UNION_TYPE) {
dev_dbg(&intf->dev, "extra CDC union\n");
goto err;
}
if (h->bLength != sizeof(struct usb_cdc_union_desc)) {
dev_dbg(&intf->dev, "CDC union len %u\n",
h->bLength);
goto err;
}
cdc_union = (struct usb_cdc_union_desc *)buf;
break;
case USB_CDC_ETHERNET_TYPE:
if (found & 1 << USB_CDC_ETHERNET_TYPE) {
dev_dbg(&intf->dev, "extra CDC ether\n");
goto err;
}
if (h->bLength != sizeof(struct usb_cdc_ether_desc)) {
dev_dbg(&intf->dev, "CDC ether len %u\n",
h->bLength);
goto err;
}
cdc_ether = (struct usb_cdc_ether_desc *)buf;
break;
}
/* Remember which CDC functional descriptors we've seen. Works
* for all types we care about, of which USB_CDC_ETHERNET_TYPE
* (0x0f) is the highest numbered
*/
if (buf[2] < 32)
found |= 1 << buf[2];
next_desc:
len -= h->bLength;
buf += h->bLength;
}
/* Use separate control and data interfaces if we found a CDC Union */
if (cdc_union) {
info->data = usb_ifnum_to_if(dev->udev,
cdc_union->bSlaveInterface0);
if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 ||
!info->data) {
dev_err(&intf->dev,
"bogus CDC Union: master=%u, slave=%u\n",
cdc_union->bMasterInterface0,
cdc_union->bSlaveInterface0);
goto err;
}
}
/* errors aren't fatal - we can live with the dynamic address */
if (cdc_ether) {
dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
}
/* claim data interface and set it up */
if (info->control != info->data) {
status = usb_driver_claim_interface(driver, info->data, dev);
if (status < 0)
goto err;
}
status = qmi_wwan_register_subdriver(dev);
if (status < 0 && info->control != info->data) {
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver, info->data);
}
/* Never use the same address on both ends of the link, even
* if the buggy firmware told us to.
*/
if (ether_addr_equal(dev->net->dev_addr, default_modem_addr))
eth_hw_addr_random(dev->net);
/* make MAC addr easily distinguishable from an IP header */
if (possibly_iphdr(dev->net->dev_addr)) {
dev->net->dev_addr[0] |= 0x02; /* set local assignment bit */
dev->net->dev_addr[0] &= 0xbf; /* clear "IP" bit */
}
dev->net->netdev_ops = &qmi_wwan_netdev_ops;
#if 1 //Added by Quectel
if (dev->driver_info->flags & FLAG_NOARP) {
dev_info(&intf->dev, "Quectel EC25&EC21&EG91&EG95&EG06&EP06&EM06&EG12&EP12&EM12&EG16&EG18&BG96&AG35 work on RawIP mode\n");
dev->net->flags |= IFF_NOARP;
usb_control_msg(
interface_to_usbdev(intf),
usb_sndctrlpipe(interface_to_usbdev(intf), 0),
0x22, //USB_CDC_REQ_SET_CONTROL_LINE_STATE
0x21, //USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE
1, //active CDC DTR
intf->cur_altsetting->desc.bInterfaceNumber,
NULL, 0, 100);
}
//to advoid module report mtu 1460, but rx 1500 bytes IP packets, and cause the customer's system crash
//next setting can make usbnet.c:usbnet_change_mtu() do not modify rx_urb_size according to hard mtu
dev->rx_urb_size = ETH_DATA_LEN + ETH_HLEN + 6;
#if defined(QUECTEL_WWAN_QMAP)
if (qmap_mode > QUECTEL_WWAN_QMAP)
qmap_mode = QUECTEL_WWAN_QMAP;
if (!status)
{
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)kzalloc(sizeof(sQmiWwanQmap), GFP_KERNEL);
if (pQmapDev == NULL)
return -ENODEV;
#ifdef QUECTEL_BRIDGE_MODE
pQmapDev->bridge_mode = bridge_mode;
#endif
pQmapDev->mpNetDev = dev;
pQmapDev->link_state = 1;
if (dev->driver_info->flags & FLAG_NOARP)
{
int idProduct = le16_to_cpu(dev->udev->descriptor.idProduct);
int lte_a = (idProduct == 0x0306 || idProduct == 0x0512 || idProduct == 0x0620 || idProduct == 0x0800);
pQmapDev->qmap_mode = qmap_mode;
if (lte_a || dev->udev->speed == USB_SPEED_SUPER) {
if (pQmapDev->qmap_mode == 0) {
pQmapDev->qmap_mode = 1; //force use QMAP
if(qmap_mode == 0)
qmap_mode = 1; //old quectel-CM only check sys/module/wwan0/parameters/qmap_mode
}
}
if (pQmapDev->qmap_mode) {
if (idProduct == 0x0121 || idProduct == 0x0125 || idProduct == 0x0435) //MDM9x07
dev->rx_urb_size = 4*1024;
else if (lte_a || dev->udev->speed == USB_SPEED_SUPER)
dev->rx_urb_size = 32*1024;
else
dev->rx_urb_size = 32*1024;
//for these modules, if send pakcet before qmi_start_network, or cause host PC crash, or cause modules crash
if (lte_a || dev->udev->speed == USB_SPEED_SUPER)
pQmapDev->link_state = 0;
}
}
info->unused = (unsigned long)pQmapDev;
dev->net->sysfs_groups[0] = &qmi_wwan_sysfs_attr_group;
dev_info(&intf->dev, "rx_urb_size = %zd\n", dev->rx_urb_size);
}
#endif
#endif
err:
return status;
}
static void qmi_wwan_unbind(struct usbnet *dev, struct usb_interface *intf)
{
struct qmi_wwan_state *info = (void *)&dev->data;
struct usb_driver *driver = driver_of(intf);
struct usb_interface *other;
if (info->subdriver && info->subdriver->disconnect)
info->subdriver->disconnect(info->control);
/* allow user to unbind using either control or data */
if (intf == info->control)
other = info->data;
else
other = info->control;
/* only if not shared */
if (other && intf != other) {
usb_set_intfdata(other, NULL);
usb_driver_release_interface(driver, other);
}
info->subdriver = NULL;
info->data = NULL;
info->control = NULL;
}
/* suspend/resume wrappers calling both usbnet and the cdc-wdm
* subdriver if present.
*
* NOTE: cdc-wdm also supports pre/post_reset, but we cannot provide
* wrappers for those without adding usbnet reset support first.
*/
static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usbnet *dev = usb_get_intfdata(intf);
struct qmi_wwan_state *info = (void *)&dev->data;
int ret;
/* Both usbnet_suspend() and subdriver->suspend() MUST return 0
* in system sleep context, otherwise, the resume callback has
* to recover device from previous suspend failure.
*/
ret = usbnet_suspend(intf, message);
if (ret < 0)
goto err;
if (intf == info->control && info->subdriver &&
info->subdriver->suspend)
ret = info->subdriver->suspend(intf, message);
if (ret < 0)
usbnet_resume(intf);
err:
return ret;
}
static int qmi_wwan_resume(struct usb_interface *intf)
{
struct usbnet *dev = usb_get_intfdata(intf);
struct qmi_wwan_state *info = (void *)&dev->data;
int ret = 0;
bool callsub = (intf == info->control && info->subdriver &&
info->subdriver->resume);
if (callsub)
ret = info->subdriver->resume(intf);
if (ret < 0)
goto err;
ret = usbnet_resume(intf);
if (ret < 0 && callsub)
info->subdriver->suspend(intf, PMSG_SUSPEND);
err:
return ret;
}
static int qmi_wwan_reset_resume(struct usb_interface *intf)
{
dev_info(&intf->dev, "device do not support reset_resume\n");
intf->needs_binding = 1;
return -EOPNOTSUPP;
}
static const struct driver_info qmi_wwan_info = {
.description = "WWAN/QMI device",
.flags = FLAG_WWAN,
.bind = qmi_wwan_bind,
.unbind = qmi_wwan_unbind,
.manage_power = qmi_wwan_manage_power,
.rx_fixup = qmi_wwan_rx_fixup,
};
static const struct driver_info qmi_wwan_raw_ip_info = {
.description = "WWAN/QMI device",
.flags = FLAG_WWAN | FLAG_RX_ASSEMBLE | FLAG_NOARP | FLAG_SEND_ZLP,
.bind = qmi_wwan_bind,
.unbind = qmi_wwan_unbind,
.manage_power = qmi_wwan_manage_power,
#if defined(QUECTEL_WWAN_QMAP)
.tx_fixup = qmap_qmi_wwan_tx_fixup,
.rx_fixup = qmap_qmi_wwan_rx_fixup,
#else
.tx_fixup = qmi_wwan_tx_fixup,
.rx_fixup = qmi_wwan_rx_fixup,
#endif
};
/* map QMI/wwan function by a fixed interface number */
#define QMI_FIXED_INTF(vend, prod, num) \
USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
.driver_info = (unsigned long)&qmi_wwan_info
#define QMI_FIXED_RAWIP_INTF(vend, prod, num) \
USB_DEVICE_INTERFACE_NUMBER(vend, prod, num), \
.driver_info = (unsigned long)&qmi_wwan_raw_ip_info
static const struct usb_device_id products[] = {
#if 1 //Added by Quectel
{ QMI_FIXED_INTF(0x05C6, 0x9003, 4) }, /* Quectel UC20 */
{ QMI_FIXED_INTF(0x05C6, 0x9215, 4) }, /* Quectel EC20 (MDM9215) */
{ QMI_FIXED_RAWIP_INTF(0x2C7C, 0x0125, 4) }, /* Quectel EC20 (MDM9X07)/EC25/EG25 */
{ QMI_FIXED_RAWIP_INTF(0x2C7C, 0x0121, 4) }, /* Quectel EC21 */
{ QMI_FIXED_RAWIP_INTF(0x2C7C, 0x0191, 4) }, /* Quectel EG91 */
{ QMI_FIXED_RAWIP_INTF(0x2C7C, 0x0195, 4) }, /* Quectel EG95 */
{ QMI_FIXED_RAWIP_INTF(0x2C7C, 0x0306, 4) }, /* Quectel EG06/EP06/EM06 */
{ QMI_FIXED_RAWIP_INTF(0x2C7C, 0x0512, 4) }, /* Quectel EG12/EP12/EM12/EG16/EG18 */
{ QMI_FIXED_RAWIP_INTF(0x2C7C, 0x0296, 4) }, /* Quectel BG96 */
{ QMI_FIXED_RAWIP_INTF(0x2C7C, 0x0435, 4) }, /* Quectel AG35 */
{ QMI_FIXED_RAWIP_INTF(0x2C7C, 0x0620, 4) }, /* Quectel EG20 */
{ QMI_FIXED_RAWIP_INTF(0x2C7C, 0x0800, 4) }, /* Quectel RG500 */
#endif
{ } /* END */
};
MODULE_DEVICE_TABLE(usb, products);
static int qmi_wwan_probe(struct usb_interface *intf,
const struct usb_device_id *prod)
{
struct usb_device_id *id = (struct usb_device_id *)prod;
/* Workaround to enable dynamic IDs. This disables usbnet
* blacklisting functionality. Which, if required, can be
* reimplemented here by using a magic "blacklist" value
* instead of 0 in the static device id table
*/
if (!id->driver_info) {
dev_dbg(&intf->dev, "setting defaults for dynamic device id\n");
id->driver_info = (unsigned long)&qmi_wwan_info;
}
if (intf->cur_altsetting->desc.bInterfaceClass != 0xff) {
dev_info(&intf->dev, "Quectel module not qmi_wwan mode! please check 'at+qcfg=\"usbnet\"'\n");
return -ENODEV;
}
return usbnet_probe(intf, id);
}
#if defined(QUECTEL_WWAN_QMAP)
static int qmap_qmi_wwan_probe(struct usb_interface *intf,
const struct usb_device_id *prod)
{
int status = qmi_wwan_probe(intf, prod);
if (!status) {
struct usbnet *dev = usb_get_intfdata(intf);
struct qmi_wwan_state *info = (void *)&dev->data;
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)info->unused;
unsigned i;
if (pQmapDev) {
if (pQmapDev->qmap_mode == 1) {
pQmapDev->mpQmapNetDev[0] = dev->net;
}
else if (pQmapDev->qmap_mode > 1) {
for (i = 0; i < pQmapDev->qmap_mode; i++) {
qmap_register_device(pQmapDev, i);
}
}
}
}
return status;
}
static void qmap_qmi_wwan_disconnect(struct usb_interface *intf)
{
struct usbnet *dev = usb_get_intfdata(intf);
struct qmi_wwan_state *info = (void *)&dev->data;
sQmiWwanQmap *pQmapDev = (sQmiWwanQmap *)info->unused;
if (pQmapDev) {
if (pQmapDev->qmap_mode > 1) {
unsigned i;
for (i = 0; i < pQmapDev->qmap_mode; i++) {
qmap_unregister_device(pQmapDev, i);
}
}
kfree(pQmapDev);
}
usbnet_disconnect(intf);
}
#endif
static struct usb_driver qmi_wwan_driver = {
.name = "qmi_wwan_q",
.id_table = products,
.probe = qmi_wwan_probe,
#if defined(QUECTEL_WWAN_QMAP)
.probe = qmap_qmi_wwan_probe,
.disconnect = qmap_qmi_wwan_disconnect,
#else
.probe = qmi_wwan_probe,
.disconnect = usbnet_disconnect,
#endif
.suspend = qmi_wwan_suspend,
.resume = qmi_wwan_resume,
.reset_resume = qmi_wwan_reset_resume,
.supports_autosuspend = 1,
.disable_hub_initiated_lpm = 1,
};
module_usb_driver(qmi_wwan_driver);
MODULE_AUTHOR("Bjørn Mork
MODULE_DESCRIPTION("Qualcomm MSM Interface (QMI) WWAN driver");
MODULE_LICENSE("GPL");
#define QUECTEL_WWAN_VERSION "Quectel_Linux&Android_QMI_WWAN_Driver_V1.1"
MODULE_VERSION(QUECTEL_WWAN_VERSION);
8、
Z:\rk3399-android-11\kernel\drivers\usb\serial\option.c
static int option_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
struct usb_interface_descriptor *iface_desc =
&serial->interface->cur_altsetting->desc;
unsigned long device_flags = id->driver_info;
/*simcom*/
if(serial->dev->descriptor.idVendor == SIMCOM_PRODUCT_VID_1E0E &&
serial->dev->descriptor.idProduct == SIMCOM_PRODUCT_PID_9001 &&
serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
return -ENODEV;
printk("idVendor:%x,idProduct:%x,bInterfaceNumber:%d\n",serial->dev->descriptor.idVendor,serial->dev->descriptor.idProduct,serial->interface->cur_altsetting->desc.bInterfaceNumber);
if (serial->dev->descriptor.idVendor == QUECTEL_VENDOR_ID &&
serial->dev->descriptor.idProduct == QUECTEL_PRODUCT_EC25 &&
serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
return -ENODEV;
printk("ckkkkkkkkkk\n");
/* Never bind to the CD-Rom emulation interface */
if (iface_desc->bInterfaceClass == USB_CLASS_MASS_STORAGE)
return -ENODEV;
/*
* Don't bind reserved interfaces (like network ones) which often have
* the same class/subclass/protocol as the serial interfaces. Look at
* the Windows driver .INF files for reserved interface numbers.
*/
if (iface_is_reserved(device_flags, iface_desc->bInterfaceNumber))
return -ENODEV;
/*
* Allow matching on bNumEndpoints for devices whose interface numbers
* can change (e.g. Quectel EP06).
*/
if (device_flags & NUMEP2 && iface_desc->bNumEndpoints != 2)
return -ENODEV;
/* Store the device flags so we can use them during attach. */
usb_set_serial_data(serial, (void *)device_flags);
return 0;
}
【几乎没有改动】
Z:\rk3399-android-11\kernel\drivers\usb\serial\qcserial.c
Z:\rk3399-android-11\kernel\drivers\usb\serial\usb_wwan.c
static struct urb *usb_wwan_setup_urb(struct usb_serial_port *port,
int endpoint,
int dir, void *ctx, char *buf, int len,
void (*callback) (struct urb *))
{
struct usb_serial *serial = port->serial;
struct usb_wwan_intf_private *intfdata = usb_get_serial_data(serial);
struct urb *urb;
struct usb_device_descriptor *desc = &serial->dev->descriptor;
urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
if (!urb)
return NULL;
usb_fill_bulk_urb(urb, serial->dev,
usb_sndbulkpipe(serial->dev, endpoint) | dir,
buf, len, callback, ctx);
if (intfdata->use_zlp && dir == USB_DIR_OUT)
urb->transfer_flags |= URB_ZERO_PACKET;
if (dir == USB_DIR_OUT) {
if ((desc->idVendor == cpu_to_le16(0x1286) &&
desc->idProduct == cpu_to_le16(0x4e3c)))
urb->transfer_flags |= URB_ZERO_PACKET;
if (desc->idVendor == cpu_to_le16(0x2c7c))
urb->transfer_flags |= URB_ZERO_PACKET;
}
return urb;
}
修改为：
static struct urb *usb_wwan_setup_urb(struct usb_serial_port *port,
int endpoint,
int dir, void *ctx, char *buf, int len,
void (*callback) (struct urb *))
{
struct usb_serial *serial = port->serial;
struct usb_wwan_intf_private *intfdata = usb_get_serial_data(serial);
struct urb *urb;
struct usb_device_descriptor *desc = &serial->dev->descriptor;
urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
if (!urb)
return NULL;
usb_fill_bulk_urb(urb, serial->dev,
usb_sndbulkpipe(serial->dev, endpoint) | dir,
buf, len, callback, ctx);
if (intfdata->use_zlp && dir == USB_DIR_OUT)
urb->transfer_flags |= URB_ZERO_PACKET;
if (dir == USB_DIR_OUT) {
#define DEV_MATCH(udesc, vid, pid) \
(udesc->idVendor == cpu_to_le16(vid) && desc->idProduct == cpu_to_le16(pid))
if (DEV_MATCH(desc, 0x1286, 0x4e3c) ||
DEV_MATCH(desc, 0x05C6, 0x9090) ||
DEV_MATCH(desc, 0x05C6, 0x9003) ||
DEV_MATCH(desc, 0x05C6, 0x9215) ||
(desc->idVendor == cpu_to_le16(0x2C7C)))
urb->transfer_flags |= URB_ZERO_PACKET;
#undef DEV_MATCH
}
return urb;
}
9、
Z:\rk3399-android-11\system\core\init\devices.cpp
void DeviceHandler::HandleUevent(const Uevent& uevent) {
if (uevent.action == "add" || uevent.action == "change" || uevent.action == "online") {
FixupSysPermissions(uevent.path, uevent.subsystem);
}
// if it's not a /dev device, nothing to do
if (uevent.major < 0 || uevent.minor < 0) return;
std::string devpath;
std::vector
bool block = false;
if (uevent.subsystem == "block") {
block = true;
devpath = "/dev/block/" + Basename(uevent.path);
if (StartsWith(uevent.path, "/devices")) {
links = GetBlockDeviceSymlinks(uevent);
}
} else if (const auto subsystem =
std::find(subsystems_.cbegin(), subsystems_.cend(), uevent.subsystem);
subsystem != subsystems_.cend()) {
devpath = subsystem->ParseDevPath(uevent);
} else if (uevent.subsystem == "usb") {
if (!uevent.device_name.empty()) {
devpath = "/dev/" + uevent.device_name;
} else {
// This imitates the file system that would be created
// if we were using devfs instead.
// Minors are broken up into groups of 128, starting at "001"
int bus_id = uevent.minor / 128 + 1;
int device_id = uevent.minor % 128 + 1;
devpath = StringPrintf("/dev/bus/usb/%03d/%03d", bus_id, device_id);
}
// add by quectel for mknod /dev/cdc-wdm0
} else if (uevent.subsystem == "usbmisc" && !uevent.device_name.empty()) {
devpath = "/dev/" + uevent.device_name;
} else if (uevent.subsystem == "usbmisc" && !uevent.device_name.empty()) {
devpath = "/dev/" + uevent.device_name;
//PLOG(ERROR) << "Failed to symlink " << devpath << " to " << link << ", which already links to: " << link_path;
PLOG(ERROR) << "2024/1/5 22:56 wenyuanbo " << devpath ;
} else if (StartsWith(uevent.subsystem, "usb")) {
// ignore other USB events
return;
} else {
devpath = "/dev/" + Basename(uevent.path);
}
mkdir_recursive(Dirname(devpath), 0755);
HandleDevice(uevent.action, devpath, block, uevent.major, uevent.minor, links);
// Duplicate /dev/ashmem device and name it /dev/ashmem
// TODO(b/111903542): remove once all users of /dev/ashmem are migrated to libcutils API.
HandleAshmemUevent(uevent);
}
参考资料：
https://download.csdn.net/download/seasonfangjing/86247556
RK356X android11 移远EC20 modem支持
对应工程设置BOARD_HAS_EC20_MODEM := true
device/rockchip/rk356x/itx68/BoardConfig.mk
BOARD_HAS_EC20_MODEM := true
system/core/init
diff --git a/init/devices.cpp b/init/devices.cpp
index 9fbec641b..e3c823d05 100644
--- a/init/devices.cpp
+++ b/init/devices.cpp
@@ -492,7 +492,10 @@ void DeviceHandler::HandleUevent(const Uevent& uevent) {
int device_id = uevent.minor % 128 + 1;
devpath = StringPrintf("/dev/bus/usb/%03d/%03d", bus_id, device_id);
}
- } else if (StartsWith(uevent.subsystem, "usb")) {
+ } else if (uevent.subsystem == "usbmisc" && !uevent.device_name.empty()) {
+ devpath = "/dev/" + uevent.device_name;
+ }
+ else if (StartsWith(uevent.subsystem, "usb")) {
// ignore other USB events
return;
} else {
device/rockchip
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -31,6 +31,14 @@
+
+
+
+
+
+
+
+
【可选参考】
https://blog.csdn.net/longmin96/article/details/122687865
RK3568-ANDROID11-4G-EC20-系统篇（移远模块）
【可选参考，需要会员下载库文件】
https://blog.csdn.net/yjz_0314/article/details/134142847
Android11.0系统中适配EC20模块4G及GPS功能
参考资料：
http://www.friendlyelec.com.cn/agent.asp
http://www.friendlyelec.com.cn/
https://download.friendlyelec.com/NanoPC-T4
https://wiki.friendlyelec.com/wiki/index.php/NanoPC-T4/zh#.E4.B8.8B.E8.BD.BDAndroid10.E6.BA.90.E4.BB.A3.E7.A0.81
https://item.taobao.com/item.htm?spm=a1z09.2.0.0.37562e8dcotDm6&id=570312633249&_u=7ju3ku004a
友善NanoPC-T4瑞芯微RK3399开发板ROS双摄4K播放开源AI智能安卓10
WiKi维基教程（固件介绍，使用说明，操作步骤等）
http://wiki.friendlyelec.com/wiki/index.php/NanoPC-T4
系统固件下载
https://dl.friendlyelec.com/nanopct4
原理图(pdf格式)
http://wiki.friendlyelec.com/wiki/images/e/e0/NanoPC-T4-1902-Schematic.pdf
尺寸图(dxf格式)
http://wiki.friendlyelec.com/wiki/images/b/bc/NanoPC-T4_1802_Drawing%28dxf%29.zip
http://www.friendlyelec.com.cn/nanopi-m4.asp
NanoPi M4 | NanoPi M4V2
https://wiki.friendlyelec.com/wiki/index.php/NanoPi_M4/zh
15.3 编译Android10源代码
15.3.1 下载Android10源代码
有以下两种途径获取 Android10 的源代码，都需要联网:
使用网盘里的git repo压缩包
网盘下载地址: 点击进入
https://download.friendlyelec.com/NanoPiM4
https://pan.baidu.com/share/init?surl=oBLn9H31hILJKEPQXgrUog
提取码：yn6r