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comparison rathaxes_start_to_implement_the_ethernet_subsystem_in_the_lkm.patch @ 12:80cfe40c1136

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WIP on the LKM sample, add a patch to work on the Ethernet subsystem
author Louis Opter <louis@lse.epitech.net>
date Fri, 06 Jan 2012 17:33:00 +0100
parents
children d00a5829811d
comparison
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11:efee5f0249e2 12:80cfe40c1136
1 # HG changeset patch
2 # Parent 44a4871708b167b49df10fc6153a73730f08287a
3 rathaxes: start to implement the Ethernet subsystem in linux LKM sample
4
5 diff --git a/rathaxes/samples/lkm/CMakeLists.txt b/rathaxes/samples/lkm/CMakeLists.txt
6 --- a/rathaxes/samples/lkm/CMakeLists.txt
7 +++ b/rathaxes/samples/lkm/CMakeLists.txt
8 @@ -1,6 +1,6 @@
9 ADD_RATHAXES_SOURCES(lkm lkm.rtx
10 - RTI log.rti lkm.rti pci.rti
11 - BLT log.blt lkm.blt pci.blt)
12 + RTI log.rti lkm.rti pci.rti ethernet.rti
13 + BLT log.blt lkm.blt pci.blt ethernet.blt)
14
15 # We can't name lkm since it's already used as the target name to generate the
16 # source (with ADD_RATHAXES_SOURCES).
17 diff --git a/rathaxes/samples/lkm/ethernet.blt b/rathaxes/samples/lkm/ethernet.blt
18 new file mode 100644
19 --- /dev/null
20 +++ b/rathaxes/samples/lkm/ethernet.blt
21 @@ -0,0 +1,116 @@
22 +with Ethernet, PCI, LKM
23 +{
24 + template type Ethernet::Device()
25 + {
26 + chunk LKM::includes()
27 + {
28 + #include <linux/netdevice.h>
29 + #include <linux/etherdevice.h>
30 +
31 + typedef int include_linux_net_system_stamp;
32 + }
33 +
34 + chunk ::decl()
35 + {
36 + struct net_device;
37 + }
38 +
39 + chunk ::init(net_dev)
40 + {
41 + ${self} = ${net_dev};
42 + }
43 +
44 + map
45 + {
46 + }
47 + }
48 +
49 + template sequence Ethernet::open(Ethernet::Device dev)
50 + {
51 + chunk LKM::prototypes()
52 + {
53 + static int rtx_ethernet_open(struct net_device *);
54 + }
55 +
56 + chunk LKM::code()
57 + {
58 + static int rtx_ethernet_open(struct net_device *dev)
59 + {
60 + ${pointcut ::IMPLEMENTATION};
61 + }
62 + }
63 + }
64 +
65 + template sequence Ethernet::close(Ethernet::Device dev)
66 + {
67 + chunk LKM::prototypes()
68 + {
69 + static int rtx_ethernet_close(struct net_device );
70 + }
71 +
72 + chunk LKM::code()
73 + {
74 + static int rtx_ethernet_close(struct net_device dev)
75 + {
76 + ${pointcut ::IMPLEMENTATION};
77 + }
78 + }
79 + }
80 +
81 + template sequence Ethernet::interrupt_handler(Ethernet::Device dev)
82 + {
83 + /*
84 + * Why we can't use irqreturn_t here? (we are forced to use enum
85 + * irqreturn, which is the real type).
86 + */
87 +
88 + chunk LKM::prototypes()
89 + {
90 + static enum irqreturn rtx_ethernet_interrupt_handler(int, void *);
91 + }
92 +
93 + chunk LKM::code()
94 + {
95 + static enum irqreturn rtx_ethernet_interrupt_handler(int irq, void *dev_id)
96 + {
97 + ${pointcut ::IMPLEMENTATION};
98 + }
99 + }
100 + }
101 +
102 + template sequence Ethernet::init(PCI::Device dev)
103 + {
104 + chunk LKM::data()
105 + {
106 + /*
107 + * This typedef is needed to workaround a bug in CNorm __std__
108 + * dialect.
109 + */
110 + typedef int ${Ethernet::Device};
111 +
112 + static ${Ethernet::Device} *rtx_net_dev = NULL;
113 + }
114 +
115 + chunk ::CALL
116 + {
117 + /*
118 + * int should be replaced by the sizeof an hypothetic "context"
119 + * structure defined in the front-end.
120 + */
121 + rtx_net_dev = alloc_etherdev(sizeof(int));
122 + /*
123 + * if (rtx_net_dev == NULL)
124 + * {
125 + * // What can we do here?
126 + * }
127 + */
128 + }
129 + }
130 +
131 + template sequence Ethernet::exit(PCI::Device dev)
132 + {
133 + chunk ::CALL
134 + {
135 + }
136 + }
137 +}
138 diff --git a/rathaxes/samples/lkm/ethernet.rti b/rathaxes/samples/lkm/ethernet.rti
139 new file mode 100644
140 --- /dev/null
141 +++ b/rathaxes/samples/lkm/ethernet.rti
142 @@ -0,0 +1,33 @@
143 +interface Ethernet : PCI, LKM
144 +{
145 + provided type Ethernet::Device;
146 +
147 + required sequence Ethernet::open(Ethernet::Device)
148 + {
149 + provided chunk LKM::prototypes;
150 + provided chunk LKM::code;
151 + }
152 +
153 + required sequence Ethernet::close(Ethernet::Device)
154 + {
155 + provided chunk LKM::prototypes;
156 + provided chunk LKM::code;
157 + }
158 +
159 + required sequence Ethernet::interrupt_handler(Ethernet::Device)
160 + {
161 + provided chunk LKM::prototypes;
162 + provided chunk LKM::code;
163 + }
164 +
165 + provided sequence Ethernet::init(PCI::Device)
166 + {
167 + provided chunk LKM::data;
168 + provided chunk ::CALL;
169 + }
170 +
171 + provided sequence Ethernet::exit(PCI::Device)
172 + {
173 + provided chunk ::CALL;
174 + }
175 +}
176 diff --git a/rathaxes/samples/lkm/lkm.rtx b/rathaxes/samples/lkm/lkm.rtx
177 --- a/rathaxes/samples/lkm/lkm.rtx
178 +++ b/rathaxes/samples/lkm/lkm.rtx
179 @@ -1,13 +1,24 @@
180 device LKM use LKM, PCI, Log
181 {
182 + Ethernet::open(Ethernet::Device dev)
183 + {
184 + }
185 +
186 + Ethernet::close(Ethernet::Device dev)
187 + {
188 + }
189 +
190 + Ethernet::interrupt_handler(Ethernet::Device dev)
191 + {
192 + }
193 +
194 PCI::probe(PCI::Device dev)
195 {
196 -
197 + Ethernet::init(dev);
198 }
199
200 PCI::remove(PCI::Device dev)
201 {
202 -
203 }
204
205 LKM::init()
206 diff --git a/rathaxes/samples/lkm/pci.blt b/rathaxes/samples/lkm/pci.blt
207 --- a/rathaxes/samples/lkm/pci.blt
208 +++ b/rathaxes/samples/lkm/pci.blt
209 @@ -11,15 +11,12 @@
210
211 chunk ::decl()
212 {
213 - struct rtx_pci_device
214 - {
215 - struct pci_dev *pci_dev;
216 - };
217 + struct pci_dev;
218 }
219
220 chunk ::init(pci_dev)
221 {
222 - ${self}.pci_dev = pci_dev;
223 + ${self} = ${pci_dev};
224 }
225
226 map
227 @@ -40,11 +37,7 @@
228 static int /* __devinit */ rtx_pci_probe(struct pci_dev *pdev,
229 const struct pci_device_id *pdev_id)
230 {
231 - /* workaround for CNorm __std__ dialect, shouldn't be here */
232 - typedef int ${PCI::Device};
233 -
234 int err;
235 - ${PCI::Device} *dev = NULL;
236
237 err = pci_enable_device(pdev);
238 // if (err < 0) /* `if' doesn't work */
239 @@ -52,8 +45,6 @@
240
241 ${pointcut ::IMPLEMENTATION};
242
243 - pci_set_drvdata(pdev, dev);
244 -
245 return 0;
246
247 fail: