请教: 美格SLM730无法工作

fangxu1999

我按照网上查的资料，尝试适配 SLM730 LTE 模块
使用的最新的 v21.02.3 版本
编译时增加了 usb-modeswitch, kmod-mii, kmod-usb-net, kmod-usb-wdm, kmod-usb-net-qmi-wwan, uqmi, kmod-usb-serial-option, kmod-usb-serial, kmod-usb-serial-wwan, luci, luci-proto-qmi
并且修改了以下的文件:
net/usb/qmi_wwan.c
usb/serial/option.c
usb/serial/usb_wwan.c

可是一直无法成功拨号，仅仅TX有数据发出，RX一直是0

设备应该是成功识别到了

1. root@OpenWrt:~# lsusb -t
   
2. /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M
   
3. /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M
   
4.     |__ Port 1: Dev 2, If 0, Class=, Driver=hub/4p, 480M
   
5.         |__ Port 2: Dev 3, If 0, Class=, Driver=option, 480M
   
6.         |__ Port 2: Dev 3, If 1, Class=, Driver=option, 480M
   
7.         |__ Port 2: Dev 3, If 2, Class=, Driver=option, 480M
   
8.         |__ Port 2: Dev 3, If 3, Class=, Driver=option, 480M
   
9.         |__ Port 2: Dev 3, If 4, Class=, Driver=, 480M
   
10.         |__ Port 2: Dev 3, If 5, Class=, Driver=qmi_wwan, 480M
    

复制代码

附上了修改后的驱动代码，请查阅

研究了两周时间，实在没有眉目，请大家指点一下。

谢谢了！

fangxu1999

以下是 dmesg 的输出

1. root@OpenWrt:~# dmesg
   
2. [    0.000000] Linux version 5.4.188 (xu@xu-virtual-machine) (gcc version 8.4.0 (OpenWrt GCC 8.4.0 r16554-1d4dea6d4f)) #0 Sat Apr 16 12:59:34 2022
   
3. [    0.000000] Board has DDR2
   
4. [    0.000000] Analog PMU set to hw control
   
5. [    0.000000] Digital PMU set to hw control
   
6. [    0.000000] SoC Type: MediaTek MT7620A ver:2 eco:6
   
7. [    0.000000] printk: bootconsole [early0] enabled
   
8. [    0.000000] CPU0 revision is: 00019650 (MIPS 24KEc)
   
9. [    0.000000] MIPS: machine is Asus RT-AC51U
   
10. [    0.000000] Initrd not found or empty - disabling initrd
    
11. [    0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
    
12. [    0.000000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
    
13. [    0.000000] Zone ranges:
    
14. [    0.000000]   Normal   [mem 0x0000000000000000-0x0000000007ffffff]
    
15. [    0.000000] Movable zone start for each node
    
16. [    0.000000] Early memory node ranges
    
17. [    0.000000]   node   0: [mem 0x0000000000000000-0x0000000007ffffff]
    
18. [    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
    
19. [    0.000000] On node 0 totalpages: 32768
    
20. [    0.000000]   Normal zone: 288 pages used for memmap
    
21. [    0.000000]   Normal zone: 0 pages reserved
    
22. [    0.000000]   Normal zone: 32768 pages, LIFO batch:7
    
23. [    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
    
24. [    0.000000] pcpu-alloc: [0] 0
    
25. [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 32480
    
26. [    0.000000] Kernel command line: console=ttyS0,57600 rootfstype=squashfs,jffs2
    
27. [    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear)
    
28. [    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
    
29. [    0.000000] Writing ErrCtl register=00035bf1
    
30. [    0.000000] Readback ErrCtl register=00035bf1
    
31. [    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
    
32. [    0.000000] Memory: 122288K/131072K available (4745K kernel code, 206K rwdata, 1048K rodata, 1224K init, 205K bss, 8784K reserved, 0K cma-reserved)
    
33. [    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
    
34. [    0.000000] NR_IRQS: 256
    
35. [    0.000000] random: get_random_bytes called from start_kernel+0x358/0x54c with crng_init=0
    
36. [    0.000000] CPU Clock: 580MHz
    
37. [    0.000000] clocksource: systick: mask: 0xffff max_cycles: 0xffff, max_idle_ns: 583261500 ns
    
38. [    0.000000] systick: enable autosleep mode
    
39. [    0.000000] systick: running - mult: 214748, shift: 32
    
40. [    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6590553264 ns
    
41. [    0.000010] sched_clock: 32 bits at 290MHz, resolution 3ns, wraps every 7405115902ns
    
42. [    0.007611] Calibrating delay loop... 385.02 BogoMIPS (lpj=770048)
    
43. [    0.045493] pid_max: default: 32768 minimum: 301
    
44. [    0.050185] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
    
45. [    0.057240] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
    
46. [    0.071776] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
    
47. [    0.081258] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
    
48. [    0.087942] pinctrl core: initialized pinctrl subsystem
    
49. [    0.093612] NET: Registered protocol family 16
    
50. [    0.474655] mt7620-pci 10140000.pcie: PCIE0 no card, disable it(RST&CLK)
    
51. [    0.481162] mt7620-pci: probe of 10140000.pcie failed with error -1
    
52. [    0.510746] rt2880_gpio 10000600.gpio: registering 24 gpios
    
53. [    0.516229] rt2880_gpio 10000600.gpio: registering 24 irq handlers
    
54. [    0.522244] GPIO line 10 (enable-leds) hogged as output/low
    
55. [    0.527990] rt2880_gpio 10000688.gpio: registering 1 gpios
    
56. [    0.533337] rt2880_gpio 10000688.gpio: registering 1 irq handlers
    
57. [    0.544501] clocksource: Switched to clocksource systick
    
58. [    0.551104] NET: Registered protocol family 2
    
59. [    0.555548] IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear)
    
60. [    0.563304] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
    
61. [    0.571455] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
    
62. [    0.578865] TCP bind hash table entries: 1024 (order: 0, 4096 bytes, linear)
    
63. [    0.585705] TCP: Hash tables configured (established 1024 bind 1024)
    
64. [    0.592020] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
    
65. [    0.598370] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
    
66. [    0.605409] NET: Registered protocol family 1
    
67. [    0.609655] PCI: CLS 0 bytes, default 32
    
68. [    0.616407] rt-timer 10000100.timer: maximum frequency is 1220Hz
    
69. [    0.624774] workingset: timestamp_bits=14 max_order=15 bucket_order=1
    
70. [    0.639628] squashfs: version 4.0 (2009/01/31) Phillip Lougher
    
71. [    0.645300] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
    
72. [    0.673582] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
    
73. [    0.681013] printk: console [ttyS0] disabled
    
74. [    0.685220] 10000c00.uartlite: ttyS0 at MMIO 0x10000c00 (irq = 20, base_baud = 2500000) is a Palmchip BK-3103
    
75. [    0.694838] printk: console [ttyS0] enabled
    
76. [    0.711374] printk: bootconsole [early0] disabled
    
77. [    0.736465] spi spi0.0: force spi mode3
    
78. [    0.755771] spi-nor spi0.0: w25q128 (16384 Kbytes)
    
79. [    0.765400] 4 fixed-partitions partitions found on MTD device spi0.0
    
80. [    0.778065] Creating 4 MTD partitions on "spi0.0":
    
81. [    0.787625] 0x000000000000-0x000000030000 : "u-boot"
    
82. [    0.798620] 0x000000030000-0x000000040000 : "u-boot-env"
    
83. [    0.810317] 0x000000040000-0x000000050000 : "factory"
    
84. [    0.821535] 0x000000050000-0x000001000000 : "firmware"
    
85. [    0.836226] 2 uimage-fw partitions found on MTD device firmware
    
86. [    0.848103] Creating 2 MTD partitions on "firmware":
    
87. [    0.858012] 0x000000000000-0x0000001e828c : "kernel"
    
88. [    0.869101] 0x0000001e828c-0x000000fb0000 : "rootfs"
    
89. [    0.880012] mtd: device 5 (rootfs) set to be root filesystem
    
90. [    0.893263] 1 squashfs-split partitions found on MTD device rootfs
    
91. [    0.905655] 0x00000056d000-0x000000fb0000 : "rootfs_data"
    
92. [    0.928631] gsw: setting port4 to ephy mode
    
93. [    0.937039] mtk_soc_eth 10100000.ethernet eth0 (uninitialized): port 3 link up (100Mbps/Full duplex)
    
94. [    0.955759] mtk_soc_eth 10100000.ethernet: loaded mt7620 driver
    
95. [    0.968361] mtk_soc_eth 10100000.ethernet eth0: mediatek frame engine at 0xb0100000, irq 5
    
96. [    0.985429] rt2880_wdt 10000120.watchdog: Initialized
    
97. [    0.997153] NET: Registered protocol family 10
    
98. [    1.010488] Segment Routing with IPv6
    
99. [    1.018010] NET: Registered protocol family 17
    
100. [    1.026942] 8021q: 802.1Q VLAN Support v1.8
     
101. [    1.044632] VFS: Mounted root (squashfs filesystem) readonly on device 31:5.
     
102. [    1.065693] Freeing unused kernel memory: 1224K
     
103. [    1.074737] This architecture does not have kernel memory protection.
     
104. [    1.087570] Run /sbin/init as init process
     
105. [    1.376461] random: fast init done
     
106. [    1.986622] init: Console is alive
     
107. [    1.993833] init: - watchdog -
     
108. [    3.420622] kmodloader: loading kernel modules from /etc/modules-boot.d/*
     
109. [    3.635304] usbcore: registered new interface driver usbfs
     
110. [    3.646413] usbcore: registered new interface driver hub
     
111. [    3.657139] usbcore: registered new device driver usb
     
112. [    3.674675] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
     
113. [    3.689736] ehci-fsl: Freescale EHCI Host controller driver
     
114. [    3.702634] ehci-platform: EHCI generic platform driver
     
115. [    3.723451] phy phy-usbphy.0: remote usb device wakeup disabled
     
116. [    3.735261] phy phy-usbphy.0: UTMI 16bit 30MHz
     
117. [    3.744124] ehci-platform 101c0000.ehci: EHCI Host Controller
     
118. [    3.755613] ehci-platform 101c0000.ehci: new USB bus registered, assigned bus number 1
     
119. [    3.771544] ehci-platform 101c0000.ehci: irq 26, io mem 0x101c0000
     
120. [    3.788422] ehci-platform 101c0000.ehci: USB 2.0 started, EHCI 1.00
     
121. [    3.801994] hub 1-0:1.0: USB hub found
     
122. [    3.809990] hub 1-0:1.0: 1 port detected
     
123. [    3.823568] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
     
124. [    3.837841] ohci-platform: OHCI generic platform driver
     
125. [    3.848666] ohci-platform 101c1000.ohci: Generic Platform OHCI controller
     
126. [    3.862262] ohci-platform 101c1000.ohci: new USB bus registered, assigned bus number 2
     
127. [    3.878194] ohci-platform 101c1000.ohci: irq 26, io mem 0x101c1000
     
128. [    3.915374] hub 2-0:1.0: USB hub found
     
129. [    3.923373] hub 2-0:1.0: 1 port detected
     
130. [    3.936495] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
     
131. [    3.955358] init: - preinit -
     
132. [    4.080508] usb 1-1: new high-speed USB device number 2 using ehci-platform
     
133. [    4.668805] hub 1-1:1.0: USB hub found
     
134. [    4.768271] hub 1-1:1.0: 4 ports detected
     
135. [    4.848520] random: procd: uninitialized urandom read (4 bytes read)
     
136. [    5.231629] usb 1-1.2: new high-speed USB device number 3 using ehci-platform
     
137. [    5.251938] random: jshn: uninitialized urandom read (4 bytes read)
     
138. [    5.431566] random: jshn: uninitialized urandom read (4 bytes read)
     
139. [    5.916295] urandom_read: 4 callbacks suppressed
     
140. [    5.916304] random: jshn: uninitialized urandom read (4 bytes read)
     
141. [    6.396876] 8021q: adding VLAN 0 to HW filter on device eth0
     
142. [    8.040037] mount_root: jffs2 not ready yet, using temporary tmpfs overlay
     
143. [    8.058390] urandom-seed: Seed file not found (/etc/urandom.seed)
     
144. [    8.181039] procd: - early -
     
145. [    8.187091] procd: - watchdog -
     
146. [    8.847980] random: jshn: uninitialized urandom read (4 bytes read)
     
147. [    8.948155] procd: - watchdog -
     
148. [    8.955179] procd: - ubus -
     
149. [    9.185351] random: ubusd: uninitialized urandom read (4 bytes read)
     
150. [    9.221234] procd: - init -
     
151. [   11.701987] kmodloader: loading kernel modules from /etc/modules.d/*
     
152. [   11.988760] usbcore: registered new interface driver cdc_wdm
     
153. [   12.017931] Loading modules backported from Linux version v5.10.110-0-g3238bffaf992
     
154. [   12.033279] Backport generated by backports.git v5.10.110-1-0-g1fbde860
     
155. [   12.113347] usbcore: registered new interface driver usbserial_generic
     
156. [   12.126509] usbserial: USB Serial support registered for generic
     
157. [   12.193556] xt_time: kernel timezone is -0000
     
158. [   12.239731] urngd: jent-rng init failed, err: 2
     
159. [   12.401783] PPP generic driver version 2.4.2
     
160. [   12.413893] NET: Registered protocol family 24
     
161. [   12.426633] qmi_wwan 1-1.2:1.5: work on RawIP mode
     
162. [   12.437478] qmi_wwan 1-1.2:1.5: cdc-wdm0: USB WDM device
     
163. [   12.449206] qmi_wwan 1-1.2:1.5 wwan0: register 'qmi_wwan' at usb-101c0000.ehci-1.2, WWAN/QMI device, 7a:a8:ae:e9:6e:86
     
164. [   12.470905] usbcore: registered new interface driver qmi_wwan
     
165. [   12.627036] usbcore: registered new interface driver option
     
166. [   12.638338] usbserial: USB Serial support registered for GSM modem (1-port)
     
167. [   12.652833] option 1-1.2:1.0: GSM modem (1-port) converter detected
     
168. [   12.665686] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB0
     
169. [   12.679853] option 1-1.2:1.1: GSM modem (1-port) converter detected
     
170. [   12.692748] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB1
     
171. [   12.706902] option 1-1.2:1.2: GSM modem (1-port) converter detected
     
172. [   12.719824] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB2
     
173. [   12.733958] option 1-1.2:1.3: GSM modem (1-port) converter detected
     
174. [   12.746833] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB3
     
175. [   12.943757] rt2800_wmac 10180000.wmac: loaded eeprom from mtd device "factory"
     
176. [   12.958194] ieee80211 phy0: rt2x00_set_rt: Info - RT chipset 6352, rev 0500 detected
     
177. [   12.973669] ieee80211 phy0: rt2x00_set_rf: Info - RF chipset 7620 detected
     
178. [   12.987503] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
     
179. [   13.031948] kmodloader: done loading kernel modules from /etc/modules.d/*
     
180. [   24.722303] crng init done
     
181. [   46.735943] jffs2_scan_eraseblock(): End of filesystem marker found at 0x0
     
182. [   46.779026] jffs2_build_filesystem(): unlocking the mtd device...
     
183. [   46.779981] done.
     
184. [   46.796204] jffs2_build_filesystem(): erasing all blocks after the end marker...
     
185. [   48.934666] 8021q: adding VLAN 0 to HW filter on device eth0
     
186. [   49.060777] br-lan: port 1(eth0.1) entered blocking state
     
187. [   49.071639] br-lan: port 1(eth0.1) entered disabled state
     
188. [   49.082849] device eth0.1 entered promiscuous mode
     
189. [   49.092455] device eth0 entered promiscuous mode
     
190. [   49.237050] br-lan: port 1(eth0.1) entered blocking state
     
191. [   49.247889] br-lan: port 1(eth0.1) entered forwarding state
     
192. [   49.938878] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
     
193. [  293.242138] done.
     
194. [  293.246035] jffs2: notice: (2443) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
     
195. [  293.495834] overlayfs: upper fs does not support tmpfile.
     

复制代码

fangxu1999

附上网络接口的截图