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path: root/drivers/net/can/sja1000/sja1000_isa.c
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Diffstat (limited to 'drivers/net/can/sja1000/sja1000_isa.c')
-rw-r--r--drivers/net/can/sja1000/sja1000_isa.c94
1 files changed, 65 insertions, 29 deletions
diff --git a/drivers/net/can/sja1000/sja1000_isa.c b/drivers/net/can/sja1000/sja1000_isa.c
index f0840d55ab7..90c5c2dfd2f 100644
--- a/drivers/net/can/sja1000/sja1000_isa.c
+++ b/drivers/net/can/sja1000/sja1000_isa.c
@@ -17,7 +17,7 @@
17 17
18#include <linux/kernel.h> 18#include <linux/kernel.h>
19#include <linux/module.h> 19#include <linux/module.h>
20#include <linux/isa.h> 20#include <linux/platform_device.h>
21#include <linux/interrupt.h> 21#include <linux/interrupt.h>
22#include <linux/netdevice.h> 22#include <linux/netdevice.h>
23#include <linux/delay.h> 23#include <linux/delay.h>
@@ -75,6 +75,8 @@ MODULE_PARM_DESC(ocr, "Output control register "
75#define SJA1000_IOSIZE 0x20 75#define SJA1000_IOSIZE 0x20
76#define SJA1000_IOSIZE_INDIRECT 0x02 76#define SJA1000_IOSIZE_INDIRECT 0x02
77 77
78static struct platform_device *sja1000_isa_devs[MAXDEV];
79
78static u8 sja1000_isa_mem_read_reg(const struct sja1000_priv *priv, int reg) 80static u8 sja1000_isa_mem_read_reg(const struct sja1000_priv *priv, int reg)
79{ 81{
80 return readb(priv->reg_base + reg); 82 return readb(priv->reg_base + reg);
@@ -115,26 +117,18 @@ static void sja1000_isa_port_write_reg_indirect(const struct sja1000_priv *priv,
115 outb(val, base + 1); 117 outb(val, base + 1);
116} 118}
117 119
118static int __devinit sja1000_isa_match(struct device *pdev, unsigned int idx) 120static int __devinit sja1000_isa_probe(struct platform_device *pdev)
119{
120 if (port[idx] || mem[idx]) {
121 if (irq[idx])
122 return 1;
123 } else if (idx)
124 return 0;
125
126 dev_err(pdev, "insufficient parameters supplied\n");
127 return 0;
128}
129
130static int __devinit sja1000_isa_probe(struct device *pdev, unsigned int idx)
131{ 121{
132 struct net_device *dev; 122 struct net_device *dev;
133 struct sja1000_priv *priv; 123 struct sja1000_priv *priv;
134 void __iomem *base = NULL; 124 void __iomem *base = NULL;
135 int iosize = SJA1000_IOSIZE; 125 int iosize = SJA1000_IOSIZE;
126 int idx = pdev->id;
136 int err; 127 int err;
137 128
129 dev_dbg(&pdev->dev, "probing idx=%d: port=%#lx, mem=%#lx, irq=%d\n",
130 idx, port[idx], mem[idx], irq[idx]);
131
138 if (mem[idx]) { 132 if (mem[idx]) {
139 if (!request_mem_region(mem[idx], iosize, DRV_NAME)) { 133 if (!request_mem_region(mem[idx], iosize, DRV_NAME)) {
140 err = -EBUSY; 134 err = -EBUSY;
@@ -203,17 +197,17 @@ static int __devinit sja1000_isa_probe(struct device *pdev, unsigned int idx)
203 else 197 else
204 priv->cdr = CDR_DEFAULT; 198 priv->cdr = CDR_DEFAULT;
205 199
206 dev_set_drvdata(pdev, dev); 200 dev_set_drvdata(&pdev->dev, dev);
207 SET_NETDEV_DEV(dev, pdev); 201 SET_NETDEV_DEV(dev, &pdev->dev);
208 202
209 err = register_sja1000dev(dev); 203 err = register_sja1000dev(dev);
210 if (err) { 204 if (err) {
211 dev_err(pdev, "registering %s failed (err=%d)\n", 205 dev_err(&pdev->dev, "registering %s failed (err=%d)\n",
212 DRV_NAME, err); 206 DRV_NAME, err);
213 goto exit_unmap; 207 goto exit_unmap;
214 } 208 }
215 209
216 dev_info(pdev, "%s device registered (reg_base=0x%p, irq=%d)\n", 210 dev_info(&pdev->dev, "%s device registered (reg_base=0x%p, irq=%d)\n",
217 DRV_NAME, priv->reg_base, dev->irq); 211 DRV_NAME, priv->reg_base, dev->irq);
218 return 0; 212 return 0;
219 213
@@ -229,13 +223,14 @@ static int __devinit sja1000_isa_probe(struct device *pdev, unsigned int idx)
229 return err; 223 return err;
230} 224}
231 225
232static int __devexit sja1000_isa_remove(struct device *pdev, unsigned int idx) 226static int __devexit sja1000_isa_remove(struct platform_device *pdev)
233{ 227{
234 struct net_device *dev = dev_get_drvdata(pdev); 228 struct net_device *dev = dev_get_drvdata(&pdev->dev);
235 struct sja1000_priv *priv = netdev_priv(dev); 229 struct sja1000_priv *priv = netdev_priv(dev);
230 int idx = pdev->id;
236 231
237 unregister_sja1000dev(dev); 232 unregister_sja1000dev(dev);
238 dev_set_drvdata(pdev, NULL); 233 dev_set_drvdata(&pdev->dev, NULL);
239 234
240 if (mem[idx]) { 235 if (mem[idx]) {
241 iounmap(priv->reg_base); 236 iounmap(priv->reg_base);
@@ -251,29 +246,70 @@ static int __devexit sja1000_isa_remove(struct device *pdev, unsigned int idx)
251 return 0; 246 return 0;
252} 247}
253 248
254static struct isa_driver sja1000_isa_driver = { 249static struct platform_driver sja1000_isa_driver = {
255 .match = sja1000_isa_match,
256 .probe = sja1000_isa_probe, 250 .probe = sja1000_isa_probe,
257 .remove = __devexit_p(sja1000_isa_remove), 251 .remove = __devexit_p(sja1000_isa_remove),
258 .driver = { 252 .driver = {
259 .name = DRV_NAME, 253 .name = DRV_NAME,
254 .owner = THIS_MODULE,
260 }, 255 },
261}; 256};
262 257
263static int __init sja1000_isa_init(void) 258static int __init sja1000_isa_init(void)
264{ 259{
265 int err = isa_register_driver(&sja1000_isa_driver, MAXDEV); 260 int idx, err;
261
262 for (idx = 0; idx < MAXDEV; idx++) {
263 if ((port[idx] || mem[idx]) && irq[idx]) {
264 sja1000_isa_devs[idx] =
265 platform_device_alloc(DRV_NAME, idx);
266 if (!sja1000_isa_devs[idx]) {
267 err = -ENOMEM;
268 goto exit_free_devices;
269 }
270 err = platform_device_add(sja1000_isa_devs[idx]);
271 if (err) {
272 platform_device_put(sja1000_isa_devs[idx]);
273 goto exit_free_devices;
274 }
275 pr_debug("%s: platform device %d: port=%#lx, mem=%#lx, "
276 "irq=%d\n",
277 DRV_NAME, idx, port[idx], mem[idx], irq[idx]);
278 } else if (idx == 0 || port[idx] || mem[idx]) {
279 pr_err("%s: insufficient parameters supplied\n",
280 DRV_NAME);
281 err = -EINVAL;
282 goto exit_free_devices;
283 }
284 }
285
286 err = platform_driver_register(&sja1000_isa_driver);
287 if (err)
288 goto exit_free_devices;
289
290 pr_info("Legacy %s driver for max. %d devices registered\n",
291 DRV_NAME, MAXDEV);
292
293 return 0;
294
295exit_free_devices:
296 while (--idx >= 0) {
297 if (sja1000_isa_devs[idx])
298 platform_device_unregister(sja1000_isa_devs[idx]);
299 }
266 300
267 if (!err)
268 printk(KERN_INFO
269 "Legacy %s driver for max. %d devices registered\n",
270 DRV_NAME, MAXDEV);
271 return err; 301 return err;
272} 302}
273 303
274static void __exit sja1000_isa_exit(void) 304static void __exit sja1000_isa_exit(void)
275{ 305{
276 isa_unregister_driver(&sja1000_isa_driver); 306 int idx;
307
308 platform_driver_unregister(&sja1000_isa_driver);
309 for (idx = 0; idx < MAXDEV; idx++) {
310 if (sja1000_isa_devs[idx])
311 platform_device_unregister(sja1000_isa_devs[idx]);
312 }
277} 313}
278 314
279module_init(sja1000_isa_init); 315module_init(sja1000_isa_init);