2 * Driver for 802.11b cards using RAM-loadable Symbol firmware, such as
3 * Symbol Wireless Networker LA4137, CompactFlash cards by Socket
4 * Communications and Intel PRO/Wireless 2011B.
6 * The driver implements Symbol firmware download. The rest is handled
7 * in hermes.c and main.c.
9 * Utilities for downloading the Symbol firmware are available at
10 * http://sourceforge.net/projects/orinoco/
12 * Copyright (C) 2002-2005 Pavel Roskin <proski@gnu.org>
13 * Portions based on orinoco_cs.c:
14 * Copyright (C) David Gibson, Linuxcare Australia
15 * Portions based on Spectrum24tDnld.c from original spectrum24 driver:
16 * Copyright (C) Symbol Technologies.
18 * See copyright notice in file main.c.
21 #define DRIVER_NAME "spectrum_cs"
22 #define PFX DRIVER_NAME ": "
24 #include <linux/module.h>
25 #include <linux/kernel.h>
26 #include <linux/delay.h>
27 #include <pcmcia/cistpl.h>
28 #include <pcmcia/cisreg.h>
29 #include <pcmcia/ds.h>
33 /********************************************************************/
35 /********************************************************************/
37 MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>");
38 MODULE_DESCRIPTION("Driver for Symbol Spectrum24 Trilogy cards with firmware downloader");
39 MODULE_LICENSE("Dual MPL/GPL");
41 /* Module parameters */
43 /* Some D-Link cards have buggy CIS. They do work at 5v properly, but
44 * don't have any CIS entry for it. This workaround it... */
45 static int ignore_cis_vcc; /* = 0 */
46 module_param(ignore_cis_vcc, int, 0);
47 MODULE_PARM_DESC(ignore_cis_vcc, "Allow voltage mismatch between card and socket");
49 /********************************************************************/
51 /********************************************************************/
53 /* PCMCIA specific device information (goes in the card field of
54 * struct orinoco_private */
55 struct orinoco_pccard {
56 struct pcmcia_device *p_dev;
59 /********************************************************************/
60 /* Function prototypes */
61 /********************************************************************/
63 static int spectrum_cs_config(struct pcmcia_device *link);
64 static void spectrum_cs_release(struct pcmcia_device *link);
66 /* Constants for the CISREG_CCSR register */
67 #define HCR_RUN 0x07 /* run firmware after reset */
68 #define HCR_IDLE 0x0E /* don't run firmware after reset */
69 #define HCR_MEM16 0x10 /* memory width bit, should be preserved */
73 * Reset the card using configuration registers COR and CCSR.
74 * If IDLE is 1, stop the firmware, so that it can be safely rewritten.
77 spectrum_reset(struct pcmcia_device *link, int idle)
83 /* Doing it if hardware is gone is guaranteed crash */
84 if (!pcmcia_dev_present(link))
87 /* Save original COR value */
88 ret = pcmcia_read_config_byte(link, CISREG_COR, &save_cor);
93 ret = pcmcia_write_config_byte(link, CISREG_COR,
94 (save_cor | COR_SOFT_RESET));
100 ret = pcmcia_read_config_byte(link, CISREG_CCSR, &ccsr);
105 * Start or stop the firmware. Memory width bit should be
106 * preserved from the value we've just read.
108 ccsr = (idle ? HCR_IDLE : HCR_RUN) | (ccsr & HCR_MEM16);
109 ret = pcmcia_write_config_byte(link, CISREG_CCSR, ccsr);
114 /* Restore original COR configuration index */
115 ret = pcmcia_write_config_byte(link, CISREG_COR,
116 (save_cor & ~COR_SOFT_RESET));
126 /********************************************************************/
128 /********************************************************************/
131 spectrum_cs_hard_reset(struct orinoco_private *priv)
133 struct orinoco_pccard *card = priv->card;
134 struct pcmcia_device *link = card->p_dev;
136 /* Soft reset using COR and HCR */
137 spectrum_reset(link, 0);
143 spectrum_cs_stop_firmware(struct orinoco_private *priv, int idle)
145 struct orinoco_pccard *card = priv->card;
146 struct pcmcia_device *link = card->p_dev;
148 return spectrum_reset(link, idle);
151 /********************************************************************/
153 /********************************************************************/
156 spectrum_cs_probe(struct pcmcia_device *link)
158 struct orinoco_private *priv;
159 struct orinoco_pccard *card;
162 priv = alloc_orinocodev(sizeof(*card), &link->dev,
163 spectrum_cs_hard_reset,
164 spectrum_cs_stop_firmware);
169 /* Link both structures together */
173 ret = spectrum_cs_config(link);
175 goto err_free_orinocodev;
180 free_orinocodev(priv);
184 static void spectrum_cs_detach(struct pcmcia_device *link)
186 struct orinoco_private *priv = link->priv;
188 orinoco_if_del(priv);
190 spectrum_cs_release(link);
192 free_orinocodev(priv);
193 } /* spectrum_cs_detach */
195 static int spectrum_cs_config_check(struct pcmcia_device *p_dev,
198 if (p_dev->config_index == 0)
201 return pcmcia_request_io(p_dev);
205 spectrum_cs_config(struct pcmcia_device *link)
207 struct orinoco_private *priv = link->priv;
208 struct hermes *hw = &priv->hw;
212 link->config_flags |= CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC |
213 CONF_AUTO_SET_IO | CONF_ENABLE_IRQ;
215 link->config_flags &= ~CONF_AUTO_CHECK_VCC;
216 ret = pcmcia_loop_config(link, spectrum_cs_config_check, NULL);
219 printk(KERN_ERR PFX "GetNextTuple(): No matching "
220 "CIS configuration. Maybe you need the "
221 "ignore_cis_vcc=1 parameter.\n");
225 mem = ioport_map(link->resource[0]->start,
226 resource_size(link->resource[0]));
230 /* We initialize the hermes structure before completing PCMCIA
231 * configuration just in case the interrupt handler gets
233 hermes_struct_init(hw, mem, HERMES_16BIT_REGSPACING);
234 hw->eeprom_pda = true;
236 ret = pcmcia_request_irq(link, orinoco_interrupt);
240 ret = pcmcia_enable_device(link);
245 if (spectrum_cs_hard_reset(priv) != 0)
248 /* Initialise the main driver */
249 if (orinoco_init(priv) != 0) {
250 printk(KERN_ERR PFX "orinoco_init() failed\n");
254 /* Register an interface with the stack */
255 if (orinoco_if_add(priv, link->resource[0]->start,
256 link->irq, NULL) != 0) {
257 printk(KERN_ERR PFX "orinoco_if_add() failed\n");
264 spectrum_cs_release(link);
266 } /* spectrum_cs_config */
269 spectrum_cs_release(struct pcmcia_device *link)
271 struct orinoco_private *priv = link->priv;
274 /* We're committed to taking the device away now, so mark the
275 * hardware as unavailable */
276 priv->hw.ops->lock_irqsave(&priv->lock, &flags);
277 priv->hw_unavailable++;
278 priv->hw.ops->unlock_irqrestore(&priv->lock, &flags);
280 pcmcia_disable_device(link);
282 ioport_unmap(priv->hw.iobase);
283 } /* spectrum_cs_release */
287 spectrum_cs_suspend(struct pcmcia_device *link)
289 struct orinoco_private *priv = link->priv;
292 /* Mark the device as stopped, to block IO until later */
299 spectrum_cs_resume(struct pcmcia_device *link)
301 struct orinoco_private *priv = link->priv;
302 int err = orinoco_up(priv);
308 /********************************************************************/
309 /* Module initialization */
310 /********************************************************************/
312 static const struct pcmcia_device_id spectrum_cs_ids[] = {
313 PCMCIA_DEVICE_MANF_CARD(0x026c, 0x0001), /* Symbol Spectrum24 LA4137 */
314 PCMCIA_DEVICE_MANF_CARD(0x0104, 0x0001), /* Socket Communications CF */
315 PCMCIA_DEVICE_PROD_ID12("Intel", "PRO/Wireless LAN PC Card", 0x816cc815, 0x6fbf459a), /* 2011B, not 2011 */
318 MODULE_DEVICE_TABLE(pcmcia, spectrum_cs_ids);
320 static struct pcmcia_driver orinoco_driver = {
321 .owner = THIS_MODULE,
323 .probe = spectrum_cs_probe,
324 .remove = spectrum_cs_detach,
325 .suspend = spectrum_cs_suspend,
326 .resume = spectrum_cs_resume,
327 .id_table = spectrum_cs_ids,
329 module_pcmcia_driver(orinoco_driver);