/* * Driver for 802.11b cards using RAM-loadable Symbol firmware, such as * Symbol Wireless Networker LA4137, CompactFlash cards by Socket * Communications and Intel PRO/Wireless 2011B. * * The driver implements Symbol firmware download. The rest is handled * in hermes.c and main.c. * * Utilities for downloading the Symbol firmware are available at * http://sourceforge.net/projects/orinoco/ * * Copyright (C) 2002-2005 Pavel Roskin * Portions based on orinoco_cs.c: * Copyright (C) David Gibson, Linuxcare Australia * Portions based on Spectrum24tDnld.c from original spectrum24 driver: * Copyright (C) Symbol Technologies. * * See copyright notice in file main.c. */ #define DRIVER_NAME "spectrum_cs" #define PFX DRIVER_NAME ": " #include #include #include #include #include #include #include #include "orinoco.h" /********************************************************************/ /* Module stuff */ /********************************************************************/ MODULE_AUTHOR("Pavel Roskin "); MODULE_DESCRIPTION("Driver for Symbol Spectrum24 Trilogy cards with firmware downloader"); MODULE_LICENSE("Dual MPL/GPL"); /* Module parameters */ /* Some D-Link cards have buggy CIS. They do work at 5v properly, but * don't have any CIS entry for it. This workaround it... */ static int ignore_cis_vcc; /* = 0 */ module_param(ignore_cis_vcc, int, 0); MODULE_PARM_DESC(ignore_cis_vcc, "Allow voltage mismatch between card and socket"); /********************************************************************/ /* Data structures */ /********************************************************************/ /* PCMCIA specific device information (goes in the card field of * struct orinoco_private */ struct orinoco_pccard { struct pcmcia_device *p_dev; }; /********************************************************************/ /* Function prototypes */ /********************************************************************/ static int spectrum_cs_config(struct pcmcia_device *link); static void spectrum_cs_release(struct pcmcia_device *link); /* Constants for the CISREG_CCSR register */ #define HCR_RUN 0x07 /* run firmware after reset */ #define HCR_IDLE 0x0E /* don't run firmware after reset */ #define HCR_MEM16 0x10 /* memory width bit, should be preserved */ /* * Reset the card using configuration registers COR and CCSR. * If IDLE is 1, stop the firmware, so that it can be safely rewritten. */ static int spectrum_reset(struct pcmcia_device *link, int idle) { int ret; u8 save_cor; u8 ccsr; /* Doing it if hardware is gone is guaranteed crash */ if (!pcmcia_dev_present(link)) return -ENODEV; /* Save original COR value */ ret = pcmcia_read_config_byte(link, CISREG_COR, &save_cor); if (ret) goto failed; /* Soft-Reset card */ ret = pcmcia_write_config_byte(link, CISREG_COR, (save_cor | COR_SOFT_RESET)); if (ret) goto failed; udelay(1000); /* Read CCSR */ ret = pcmcia_read_config_byte(link, CISREG_CCSR, &ccsr); if (ret) goto failed; /* * Start or stop the firmware. Memory width bit should be * preserved from the value we've just read. */ ccsr = (idle ? HCR_IDLE : HCR_RUN) | (ccsr & HCR_MEM16); ret = pcmcia_write_config_byte(link, CISREG_CCSR, ccsr); if (ret) goto failed; udelay(1000); /* Restore original COR configuration index */ ret = pcmcia_write_config_byte(link, CISREG_COR, (save_cor & ~COR_SOFT_RESET)); if (ret) goto failed; udelay(1000); return 0; failed: return -ENODEV; } /********************************************************************/ /* Device methods */ /********************************************************************/ static int spectrum_cs_hard_reset(struct orinoco_private *priv) { struct orinoco_pccard *card = priv->card; struct pcmcia_device *link = card->p_dev; /* Soft reset using COR and HCR */ spectrum_reset(link, 0); return 0; } static int spectrum_cs_stop_firmware(struct orinoco_private *priv, int idle) { struct orinoco_pccard *card = priv->card; struct pcmcia_device *link = card->p_dev; return spectrum_reset(link, idle); } /********************************************************************/ /* PCMCIA stuff */ /********************************************************************/ static int spectrum_cs_probe(struct pcmcia_device *link) { struct orinoco_private *priv; struct orinoco_pccard *card; priv = alloc_orinocodev(sizeof(*card), &link->dev, spectrum_cs_hard_reset, spectrum_cs_stop_firmware); if (!priv) return -ENOMEM; card = priv->card; /* Link both structures together */ card->p_dev = link; link->priv = priv; #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35)) /* Interrupt setup */ link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->irq.Handler = orinoco_interrupt; #endif #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37)) link->conf.Attributes = 0; link->conf.IntType = INT_MEMORY_AND_IO; #endif return spectrum_cs_config(link); } /* spectrum_cs_attach */ static void spectrum_cs_detach(struct pcmcia_device *link) { struct orinoco_private *priv = link->priv; orinoco_if_del(priv); spectrum_cs_release(link); free_orinocodev(priv); } /* spectrum_cs_detach */ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) static int spectrum_cs_config_check(struct pcmcia_device *p_dev, void *priv_data) { if (p_dev->config_index == 0) return -EINVAL; return pcmcia_request_io(p_dev); }; #else static int spectrum_cs_config_check(struct pcmcia_device *p_dev, cistpl_cftable_entry_t *cfg, cistpl_cftable_entry_t *dflt, unsigned int vcc, void *priv_data) { if (cfg->index == 0) goto next_entry; /* Use power settings for Vcc and Vpp if present */ /* Note that the CIS values need to be rescaled */ if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) { if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000) { DEBUG(2, "%s: Vcc mismatch (vcc = %d, CIS = %d)\n", __func__, vcc, cfg->vcc.param[CISTPL_POWER_VNOM] / 10000); if (!ignore_cis_vcc) goto next_entry; } } else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) { if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000) { DEBUG(2, "%s: Vcc mismatch (vcc = %d, CIS = %d)\n", __func__, vcc, dflt->vcc.param[CISTPL_POWER_VNOM] / 10000); if (!ignore_cis_vcc) goto next_entry; } } if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) p_dev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM)) p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000; /* Do we need to allocate an interrupt? */ p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36) p_dev->resource[0]->end = p_dev->resource[1]->end = 0; #else p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; #endif if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36) p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK; p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; p_dev->resource[0]->flags |= pcmcia_io_cfg_data_width(io->flags); p_dev->resource[0]->start = io->win[0].base; p_dev->resource[0]->end = io->win[0].len; #else p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; if (!(io->flags & CISTPL_IO_8BIT)) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_16; if (!(io->flags & CISTPL_IO_16BIT)) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; p_dev->io.BasePort1 = io->win[0].base; p_dev->io.NumPorts1 = io->win[0].len; #endif if (io->nwin > 1) { #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36) p_dev->resource[1]->flags = p_dev->resource[0]->flags; p_dev->resource[1]->start = io->win[1].base; p_dev->resource[1]->end = io->win[1].len; #else p_dev->io.Attributes2 = p_dev->io.Attributes1; p_dev->io.BasePort2 = io->win[1].base; p_dev->io.NumPorts2 = io->win[1].len; #endif } /* This reserves IO space but doesn't actually enable it */ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36) if (pcmcia_request_io(p_dev) != 0) #else if (pcmcia_request_io(p_dev, &p_dev->io) != 0) #endif goto next_entry; } return 0; next_entry: pcmcia_disable_device(p_dev); return -ENODEV; }; #endif static int spectrum_cs_config(struct pcmcia_device *link) { struct orinoco_private *priv = link->priv; struct hermes *hw = &priv->hw; int ret; void __iomem *mem; #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) link->config_flags |= CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC | CONF_AUTO_SET_IO | CONF_ENABLE_IRQ; if (ignore_cis_vcc) link->config_flags &= ~CONF_AUTO_CHECK_VCC; #endif ret = pcmcia_loop_config(link, spectrum_cs_config_check, NULL); if (ret) { if (!ignore_cis_vcc) printk(KERN_ERR PFX "GetNextTuple(): No matching " "CIS configuration. Maybe you need the " "ignore_cis_vcc=1 parameter.\n"); goto failed; } #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36) mem = ioport_map(link->resource[0]->start, resource_size(link->resource[0])); #else mem = ioport_map(link->io.BasePort1, link->io.NumPorts1); #endif if (!mem) goto failed; /* We initialize the hermes structure before completing PCMCIA * configuration just in case the interrupt handler gets * called. */ hermes_struct_init(hw, mem, HERMES_16BIT_REGSPACING); hw->eeprom_pda = true; #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) ret = pcmcia_request_irq(link, orinoco_interrupt); #else ret = pcmcia_request_irq(link, &link->irq); #endif if (ret) goto failed; ret = pcmcia_enable_device(link); if (ret) goto failed; /* Reset card */ if (spectrum_cs_hard_reset(priv) != 0) goto failed; /* Initialise the main driver */ if (orinoco_init(priv) != 0) { printk(KERN_ERR PFX "orinoco_init() failed\n"); goto failed; } /* Register an interface with the stack */ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)) if (orinoco_if_add(priv, link->resource[0]->start, link->irq, NULL) != 0) { #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) if (orinoco_if_add(priv, link->io.BasePort1, link->irq, NULL) != 0) { #else if (orinoco_if_add(priv, link->io.BasePort1, link->irq.AssignedIRQ, NULL) != 0) { #endif printk(KERN_ERR PFX "orinoco_if_add() failed\n"); goto failed; } return 0; failed: spectrum_cs_release(link); return -ENODEV; } /* spectrum_cs_config */ static void spectrum_cs_release(struct pcmcia_device *link) { struct orinoco_private *priv = link->priv; unsigned long flags; /* We're committed to taking the device away now, so mark the * hardware as unavailable */ priv->hw.ops->lock_irqsave(&priv->lock, &flags); priv->hw_unavailable++; priv->hw.ops->unlock_irqrestore(&priv->lock, &flags); pcmcia_disable_device(link); if (priv->hw.iobase) ioport_unmap(priv->hw.iobase); } /* spectrum_cs_release */ static int spectrum_cs_suspend(struct pcmcia_device *link) { struct orinoco_private *priv = link->priv; int err = 0; /* Mark the device as stopped, to block IO until later */ orinoco_down(priv); return err; } static int spectrum_cs_resume(struct pcmcia_device *link) { struct orinoco_private *priv = link->priv; int err = orinoco_up(priv); return err; } /********************************************************************/ /* Module initialization */ /********************************************************************/ static const struct pcmcia_device_id spectrum_cs_ids[] = { PCMCIA_DEVICE_MANF_CARD(0x026c, 0x0001), /* Symbol Spectrum24 LA4137 */ PCMCIA_DEVICE_MANF_CARD(0x0104, 0x0001), /* Socket Communications CF */ PCMCIA_DEVICE_PROD_ID12("Intel", "PRO/Wireless LAN PC Card", 0x816cc815, 0x6fbf459a), /* 2011B, not 2011 */ PCMCIA_DEVICE_NULL, }; MODULE_DEVICE_TABLE(pcmcia, spectrum_cs_ids); static struct pcmcia_driver orinoco_driver = { .owner = THIS_MODULE, #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) .name = DRIVER_NAME, #else .drv = { .name = DRIVER_NAME, }, #endif .probe = spectrum_cs_probe, .remove = spectrum_cs_detach, .suspend = spectrum_cs_suspend, .resume = spectrum_cs_resume, .id_table = spectrum_cs_ids, }; module_pcmcia_driver(orinoco_driver);