| /* |
| * Driver for 802.11b cards using RAM-loadable Symbol firmware, such as |
| * Symbol Wireless Networker LA4100, CompactFlash cards by Socket |
| * Communications and Intel PRO/Wireless 2011B. |
| * |
| * The driver implements Symbol firmware download. The rest is handled |
| * in hermes.c and orinoco.c. |
| * |
| * Utilities for downloading the Symbol firmware are available at |
| * http://sourceforge.net/projects/orinoco/ |
| * |
| * Copyright (C) 2002-2005 Pavel Roskin <proski@gnu.org> |
| * 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 orinoco.c. |
| */ |
| |
| #define DRIVER_NAME "spectrum_cs" |
| #define PFX DRIVER_NAME ": " |
| |
| #include <linux/config.h> |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/sched.h> |
| #include <linux/ptrace.h> |
| #include <linux/slab.h> |
| #include <linux/string.h> |
| #include <linux/ioport.h> |
| #include <linux/netdevice.h> |
| #include <linux/if_arp.h> |
| #include <linux/etherdevice.h> |
| #include <linux/wireless.h> |
| #include <linux/firmware.h> |
| |
| #include <pcmcia/cs_types.h> |
| #include <pcmcia/cs.h> |
| #include <pcmcia/cistpl.h> |
| #include <pcmcia/cisreg.h> |
| #include <pcmcia/ds.h> |
| |
| #include <asm/uaccess.h> |
| #include <asm/io.h> |
| #include <asm/system.h> |
| |
| #include "orinoco.h" |
| |
| static unsigned char *primsym; |
| static unsigned char *secsym; |
| static const char primary_fw_name[] = "symbol_sp24t_prim_fw"; |
| static const char secondary_fw_name[] = "symbol_sp24t_sec_fw"; |
| |
| /********************************************************************/ |
| /* Module stuff */ |
| /********************************************************************/ |
| |
| MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>"); |
| 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"); |
| |
| /********************************************************************/ |
| /* Magic constants */ |
| /********************************************************************/ |
| |
| /* |
| * The dev_info variable is the "key" that is used to match up this |
| * device driver with appropriate cards, through the card |
| * configuration database. |
| */ |
| static dev_info_t dev_info = DRIVER_NAME; |
| |
| /********************************************************************/ |
| /* Data structures */ |
| /********************************************************************/ |
| |
| /* PCMCIA specific device information (goes in the card field of |
| * struct orinoco_private */ |
| struct orinoco_pccard { |
| dev_link_t link; |
| dev_node_t node; |
| }; |
| |
| /* |
| * A linked list of "instances" of the device. Each actual PCMCIA |
| * card corresponds to one device instance, and is described by one |
| * dev_link_t structure (defined in ds.h). |
| */ |
| static dev_link_t *dev_list; /* = NULL */ |
| |
| /********************************************************************/ |
| /* Function prototypes */ |
| /********************************************************************/ |
| |
| /* device methods */ |
| static int spectrum_cs_hard_reset(struct orinoco_private *priv); |
| |
| /* PCMCIA gumpf */ |
| static void spectrum_cs_config(dev_link_t * link); |
| static void spectrum_cs_release(dev_link_t * link); |
| static int spectrum_cs_event(event_t event, int priority, |
| event_callback_args_t * args); |
| |
| static dev_link_t *spectrum_cs_attach(void); |
| static void spectrum_cs_detach(dev_link_t *); |
| |
| /********************************************************************/ |
| /* Firmware downloader */ |
| /********************************************************************/ |
| |
| /* Position of PDA in the adapter memory */ |
| #define EEPROM_ADDR 0x3000 |
| #define EEPROM_LEN 0x200 |
| #define PDA_OFFSET 0x100 |
| |
| #define PDA_ADDR (EEPROM_ADDR + PDA_OFFSET) |
| #define PDA_WORDS ((EEPROM_LEN - PDA_OFFSET) / 2) |
| |
| /* 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 */ |
| |
| /* |
| * AUX port access. To unlock the AUX port write the access keys to the |
| * PARAM0-2 registers, then write HERMES_AUX_ENABLE to the HERMES_CONTROL |
| * register. Then read it and make sure it's HERMES_AUX_ENABLED. |
| */ |
| #define HERMES_AUX_ENABLE 0x8000 /* Enable auxiliary port access */ |
| #define HERMES_AUX_DISABLE 0x4000 /* Disable to auxiliary port access */ |
| #define HERMES_AUX_ENABLED 0xC000 /* Auxiliary port is open */ |
| |
| #define HERMES_AUX_PW0 0xFE01 |
| #define HERMES_AUX_PW1 0xDC23 |
| #define HERMES_AUX_PW2 0xBA45 |
| |
| /* End markers */ |
| #define PDI_END 0x00000000 /* End of PDA */ |
| #define BLOCK_END 0xFFFFFFFF /* Last image block */ |
| #define TEXT_END 0x1A /* End of text header */ |
| |
| /* |
| * The following structures have little-endian fields denoted by |
| * the leading underscore. Don't access them directly - use inline |
| * functions defined below. |
| */ |
| |
| /* |
| * The binary image to be downloaded consists of series of data blocks. |
| * Each block has the following structure. |
| */ |
| struct dblock { |
| u32 _addr; /* adapter address where to write the block */ |
| u16 _len; /* length of the data only, in bytes */ |
| char data[0]; /* data to be written */ |
| } __attribute__ ((packed)); |
| |
| /* |
| * Plug Data References are located in in the image after the last data |
| * block. They refer to areas in the adapter memory where the plug data |
| * items with matching ID should be written. |
| */ |
| struct pdr { |
| u32 _id; /* record ID */ |
| u32 _addr; /* adapter address where to write the data */ |
| u32 _len; /* expected length of the data, in bytes */ |
| char next[0]; /* next PDR starts here */ |
| } __attribute__ ((packed)); |
| |
| |
| /* |
| * Plug Data Items are located in the EEPROM read from the adapter by |
| * primary firmware. They refer to the device-specific data that should |
| * be plugged into the secondary firmware. |
| */ |
| struct pdi { |
| u16 _len; /* length of ID and data, in words */ |
| u16 _id; /* record ID */ |
| char data[0]; /* plug data */ |
| } __attribute__ ((packed));; |
| |
| |
| /* Functions for access to little-endian data */ |
| static inline u32 |
| dblock_addr(const struct dblock *blk) |
| { |
| return le32_to_cpu(blk->_addr); |
| } |
| |
| static inline u32 |
| dblock_len(const struct dblock *blk) |
| { |
| return le16_to_cpu(blk->_len); |
| } |
| |
| static inline u32 |
| pdr_id(const struct pdr *pdr) |
| { |
| return le32_to_cpu(pdr->_id); |
| } |
| |
| static inline u32 |
| pdr_addr(const struct pdr *pdr) |
| { |
| return le32_to_cpu(pdr->_addr); |
| } |
| |
| static inline u32 |
| pdr_len(const struct pdr *pdr) |
| { |
| return le32_to_cpu(pdr->_len); |
| } |
| |
| static inline u32 |
| pdi_id(const struct pdi *pdi) |
| { |
| return le16_to_cpu(pdi->_id); |
| } |
| |
| /* Return length of the data only, in bytes */ |
| static inline u32 |
| pdi_len(const struct pdi *pdi) |
| { |
| return 2 * (le16_to_cpu(pdi->_len) - 1); |
| } |
| |
| |
| /* Set address of the auxiliary port */ |
| static inline void |
| spectrum_aux_setaddr(hermes_t *hw, u32 addr) |
| { |
| hermes_write_reg(hw, HERMES_AUXPAGE, (u16) (addr >> 7)); |
| hermes_write_reg(hw, HERMES_AUXOFFSET, (u16) (addr & 0x7F)); |
| } |
| |
| |
| /* Open access to the auxiliary port */ |
| static int |
| spectrum_aux_open(hermes_t *hw) |
| { |
| int i; |
| |
| /* Already open? */ |
| if (hermes_read_reg(hw, HERMES_CONTROL) == HERMES_AUX_ENABLED) |
| return 0; |
| |
| hermes_write_reg(hw, HERMES_PARAM0, HERMES_AUX_PW0); |
| hermes_write_reg(hw, HERMES_PARAM1, HERMES_AUX_PW1); |
| hermes_write_reg(hw, HERMES_PARAM2, HERMES_AUX_PW2); |
| hermes_write_reg(hw, HERMES_CONTROL, HERMES_AUX_ENABLE); |
| |
| for (i = 0; i < 20; i++) { |
| udelay(10); |
| if (hermes_read_reg(hw, HERMES_CONTROL) == |
| HERMES_AUX_ENABLED) |
| return 0; |
| } |
| |
| return -EBUSY; |
| } |
| |
| |
| #define CS_CHECK(fn, ret) \ |
| do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) |
| |
| /* |
| * 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(dev_link_t *link, int idle) |
| { |
| int last_ret, last_fn; |
| conf_reg_t reg; |
| u_int save_cor; |
| |
| /* Doing it if hardware is gone is guaranteed crash */ |
| if (!(link->state & DEV_CONFIG)) |
| return -ENODEV; |
| |
| /* Save original COR value */ |
| reg.Function = 0; |
| reg.Action = CS_READ; |
| reg.Offset = CISREG_COR; |
| CS_CHECK(AccessConfigurationRegister, |
| pcmcia_access_configuration_register(link->handle, ®)); |
| save_cor = reg.Value; |
| |
| /* Soft-Reset card */ |
| reg.Action = CS_WRITE; |
| reg.Offset = CISREG_COR; |
| reg.Value = (save_cor | COR_SOFT_RESET); |
| CS_CHECK(AccessConfigurationRegister, |
| pcmcia_access_configuration_register(link->handle, ®)); |
| udelay(1000); |
| |
| /* Read CCSR */ |
| reg.Action = CS_READ; |
| reg.Offset = CISREG_CCSR; |
| CS_CHECK(AccessConfigurationRegister, |
| pcmcia_access_configuration_register(link->handle, ®)); |
| |
| /* |
| * Start or stop the firmware. Memory width bit should be |
| * preserved from the value we've just read. |
| */ |
| reg.Action = CS_WRITE; |
| reg.Offset = CISREG_CCSR; |
| reg.Value = (idle ? HCR_IDLE : HCR_RUN) | (reg.Value & HCR_MEM16); |
| CS_CHECK(AccessConfigurationRegister, |
| pcmcia_access_configuration_register(link->handle, ®)); |
| udelay(1000); |
| |
| /* Restore original COR configuration index */ |
| reg.Action = CS_WRITE; |
| reg.Offset = CISREG_COR; |
| reg.Value = (save_cor & ~COR_SOFT_RESET); |
| CS_CHECK(AccessConfigurationRegister, |
| pcmcia_access_configuration_register(link->handle, ®)); |
| udelay(1000); |
| return 0; |
| |
| cs_failed: |
| cs_error(link->handle, last_fn, last_ret); |
| return -ENODEV; |
| } |
| |
| |
| /* |
| * Scan PDR for the record with the specified RECORD_ID. |
| * If it's not found, return NULL. |
| */ |
| static struct pdr * |
| spectrum_find_pdr(struct pdr *first_pdr, u32 record_id) |
| { |
| struct pdr *pdr = first_pdr; |
| |
| while (pdr_id(pdr) != PDI_END) { |
| /* |
| * PDR area is currently not terminated by PDI_END. |
| * It's followed by CRC records, which have the type |
| * field where PDR has length. The type can be 0 or 1. |
| */ |
| if (pdr_len(pdr) < 2) |
| return NULL; |
| |
| /* If the record ID matches, we are done */ |
| if (pdr_id(pdr) == record_id) |
| return pdr; |
| |
| pdr = (struct pdr *) pdr->next; |
| } |
| return NULL; |
| } |
| |
| |
| /* Process one Plug Data Item - find corresponding PDR and plug it */ |
| static int |
| spectrum_plug_pdi(hermes_t *hw, struct pdr *first_pdr, struct pdi *pdi) |
| { |
| struct pdr *pdr; |
| |
| /* Find the PDI corresponding to this PDR */ |
| pdr = spectrum_find_pdr(first_pdr, pdi_id(pdi)); |
| |
| /* No match is found, safe to ignore */ |
| if (!pdr) |
| return 0; |
| |
| /* Lengths of the data in PDI and PDR must match */ |
| if (pdi_len(pdi) != pdr_len(pdr)) |
| return -EINVAL; |
| |
| /* do the actual plugging */ |
| spectrum_aux_setaddr(hw, pdr_addr(pdr)); |
| hermes_write_words(hw, HERMES_AUXDATA, pdi->data, |
| pdi_len(pdi) / 2); |
| |
| return 0; |
| } |
| |
| |
| /* Read PDA from the adapter */ |
| static int |
| spectrum_read_pda(hermes_t *hw, u16 *pda, int pda_len) |
| { |
| int ret; |
| int pda_size; |
| |
| /* Issue command to read EEPROM */ |
| ret = hermes_docmd_wait(hw, HERMES_CMD_READMIF, 0, NULL); |
| if (ret) |
| return ret; |
| |
| /* Open auxiliary port */ |
| ret = spectrum_aux_open(hw); |
| if (ret) |
| return ret; |
| |
| /* read PDA from EEPROM */ |
| spectrum_aux_setaddr(hw, PDA_ADDR); |
| hermes_read_words(hw, HERMES_AUXDATA, pda, pda_len / 2); |
| |
| /* Check PDA length */ |
| pda_size = le16_to_cpu(pda[0]); |
| if (pda_size > pda_len) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| |
| /* Parse PDA and write the records into the adapter */ |
| static int |
| spectrum_apply_pda(hermes_t *hw, const struct dblock *first_block, |
| u16 *pda) |
| { |
| int ret; |
| struct pdi *pdi; |
| struct pdr *first_pdr; |
| const struct dblock *blk = first_block; |
| |
| /* Skip all blocks to locate Plug Data References */ |
| while (dblock_addr(blk) != BLOCK_END) |
| blk = (struct dblock *) &blk->data[dblock_len(blk)]; |
| |
| first_pdr = (struct pdr *) blk; |
| |
| /* Go through every PDI and plug them into the adapter */ |
| pdi = (struct pdi *) (pda + 2); |
| while (pdi_id(pdi) != PDI_END) { |
| ret = spectrum_plug_pdi(hw, first_pdr, pdi); |
| if (ret) |
| return ret; |
| |
| /* Increment to the next PDI */ |
| pdi = (struct pdi *) &pdi->data[pdi_len(pdi)]; |
| } |
| return 0; |
| } |
| |
| |
| /* Load firmware blocks into the adapter */ |
| static int |
| spectrum_load_blocks(hermes_t *hw, const struct dblock *first_block) |
| { |
| const struct dblock *blk; |
| u32 blkaddr; |
| u32 blklen; |
| |
| blk = first_block; |
| blkaddr = dblock_addr(blk); |
| blklen = dblock_len(blk); |
| |
| while (dblock_addr(blk) != BLOCK_END) { |
| spectrum_aux_setaddr(hw, blkaddr); |
| hermes_write_words(hw, HERMES_AUXDATA, blk->data, |
| blklen / 2); |
| |
| blk = (struct dblock *) &blk->data[blklen]; |
| blkaddr = dblock_addr(blk); |
| blklen = dblock_len(blk); |
| } |
| return 0; |
| } |
| |
| |
| /* |
| * Process a firmware image - stop the card, load the firmware, reset |
| * the card and make sure it responds. For the secondary firmware take |
| * care of the PDA - read it and then write it on top of the firmware. |
| */ |
| static int |
| spectrum_dl_image(hermes_t *hw, dev_link_t *link, |
| const unsigned char *image) |
| { |
| int ret; |
| const unsigned char *ptr; |
| const struct dblock *first_block; |
| |
| /* Plug Data Area (PDA) */ |
| u16 pda[PDA_WORDS]; |
| |
| /* Binary block begins after the 0x1A marker */ |
| ptr = image; |
| while (*ptr++ != TEXT_END); |
| first_block = (const struct dblock *) ptr; |
| |
| /* Read the PDA */ |
| if (image != primsym) { |
| ret = spectrum_read_pda(hw, pda, sizeof(pda)); |
| if (ret) |
| return ret; |
| } |
| |
| /* Stop the firmware, so that it can be safely rewritten */ |
| ret = spectrum_reset(link, 1); |
| if (ret) |
| return ret; |
| |
| /* Program the adapter with new firmware */ |
| ret = spectrum_load_blocks(hw, first_block); |
| if (ret) |
| return ret; |
| |
| /* Write the PDA to the adapter */ |
| if (image != primsym) { |
| ret = spectrum_apply_pda(hw, first_block, pda); |
| if (ret) |
| return ret; |
| } |
| |
| /* Run the firmware */ |
| ret = spectrum_reset(link, 0); |
| if (ret) |
| return ret; |
| |
| /* Reset hermes chip and make sure it responds */ |
| ret = hermes_init(hw); |
| |
| /* hermes_reset() should return 0 with the secondary firmware */ |
| if (image != primsym && ret != 0) |
| return -ENODEV; |
| |
| /* And this should work with any firmware */ |
| if (!hermes_present(hw)) |
| return -ENODEV; |
| |
| return 0; |
| } |
| |
| |
| /* |
| * Download the firmware into the card, this also does a PCMCIA soft |
| * reset on the card, to make sure it's in a sane state. |
| */ |
| static int |
| spectrum_dl_firmware(hermes_t *hw, dev_link_t *link) |
| { |
| int ret; |
| client_handle_t handle = link->handle; |
| const struct firmware *fw_entry; |
| |
| if (request_firmware(&fw_entry, primary_fw_name, |
| &handle_to_dev(handle)) == 0) { |
| primsym = fw_entry->data; |
| } else { |
| printk(KERN_ERR PFX "Cannot find firmware: %s\n", |
| primary_fw_name); |
| return -ENOENT; |
| } |
| |
| if (request_firmware(&fw_entry, secondary_fw_name, |
| &handle_to_dev(handle)) == 0) { |
| secsym = fw_entry->data; |
| } else { |
| printk(KERN_ERR PFX "Cannot find firmware: %s\n", |
| secondary_fw_name); |
| return -ENOENT; |
| } |
| |
| /* Load primary firmware */ |
| ret = spectrum_dl_image(hw, link, primsym); |
| if (ret) { |
| printk(KERN_ERR PFX "Primary firmware download failed\n"); |
| return ret; |
| } |
| |
| /* Load secondary firmware */ |
| ret = spectrum_dl_image(hw, link, secsym); |
| |
| if (ret) { |
| printk(KERN_ERR PFX "Secondary firmware download failed\n"); |
| } |
| |
| return ret; |
| } |
| |
| /********************************************************************/ |
| /* Device methods */ |
| /********************************************************************/ |
| |
| static int |
| spectrum_cs_hard_reset(struct orinoco_private *priv) |
| { |
| struct orinoco_pccard *card = priv->card; |
| dev_link_t *link = &card->link; |
| int err; |
| |
| if (!hermes_present(&priv->hw)) { |
| /* The firmware needs to be reloaded */ |
| if (spectrum_dl_firmware(&priv->hw, &card->link) != 0) { |
| printk(KERN_ERR PFX "Firmware download failed\n"); |
| err = -ENODEV; |
| } |
| } else { |
| /* Soft reset using COR and HCR */ |
| spectrum_reset(link, 0); |
| } |
| |
| return 0; |
| } |
| |
| /********************************************************************/ |
| /* PCMCIA stuff */ |
| /********************************************************************/ |
| |
| /* |
| * This creates an "instance" of the driver, allocating local data |
| * structures for one device. The device is registered with Card |
| * Services. |
| * |
| * The dev_link structure is initialized, but we don't actually |
| * configure the card at this point -- we wait until we receive a card |
| * insertion event. */ |
| static dev_link_t * |
| spectrum_cs_attach(void) |
| { |
| struct net_device *dev; |
| struct orinoco_private *priv; |
| struct orinoco_pccard *card; |
| dev_link_t *link; |
| client_reg_t client_reg; |
| int ret; |
| |
| dev = alloc_orinocodev(sizeof(*card), spectrum_cs_hard_reset); |
| if (! dev) |
| return NULL; |
| priv = netdev_priv(dev); |
| card = priv->card; |
| |
| /* Link both structures together */ |
| link = &card->link; |
| link->priv = dev; |
| |
| /* Interrupt setup */ |
| link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; |
| link->irq.IRQInfo1 = IRQ_LEVEL_ID; |
| link->irq.Handler = orinoco_interrupt; |
| link->irq.Instance = dev; |
| |
| /* General socket configuration defaults can go here. In this |
| * client, we assume very little, and rely on the CIS for |
| * almost everything. In most clients, many details (i.e., |
| * number, sizes, and attributes of IO windows) are fixed by |
| * the nature of the device, and can be hard-wired here. */ |
| link->conf.Attributes = 0; |
| link->conf.IntType = INT_MEMORY_AND_IO; |
| |
| /* Register with Card Services */ |
| /* FIXME: need a lock? */ |
| link->next = dev_list; |
| dev_list = link; |
| |
| client_reg.dev_info = &dev_info; |
| client_reg.Version = 0x0210; /* FIXME: what does this mean? */ |
| client_reg.event_callback_args.client_data = link; |
| |
| ret = pcmcia_register_client(&link->handle, &client_reg); |
| if (ret != CS_SUCCESS) { |
| cs_error(link->handle, RegisterClient, ret); |
| spectrum_cs_detach(link); |
| return NULL; |
| } |
| |
| return link; |
| } /* spectrum_cs_attach */ |
| |
| /* |
| * This deletes a driver "instance". The device is de-registered with |
| * Card Services. If it has been released, all local data structures |
| * are freed. Otherwise, the structures will be freed when the device |
| * is released. |
| */ |
| static void spectrum_cs_detach(dev_link_t *link) |
| { |
| dev_link_t **linkp; |
| struct net_device *dev = link->priv; |
| |
| /* Locate device structure */ |
| for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) |
| if (*linkp == link) |
| break; |
| |
| BUG_ON(*linkp == NULL); |
| |
| if (link->state & DEV_CONFIG) |
| spectrum_cs_release(link); |
| |
| /* Break the link with Card Services */ |
| if (link->handle) |
| pcmcia_deregister_client(link->handle); |
| |
| /* Unlink device structure, and free it */ |
| *linkp = link->next; |
| DEBUG(0, PFX "detach: link=%p link->dev=%p\n", link, link->dev); |
| if (link->dev) { |
| DEBUG(0, PFX "About to unregister net device %p\n", |
| dev); |
| unregister_netdev(dev); |
| } |
| free_orinocodev(dev); |
| } /* spectrum_cs_detach */ |
| |
| /* |
| * spectrum_cs_config() is scheduled to run after a CARD_INSERTION |
| * event is received, to configure the PCMCIA socket, and to make the |
| * device available to the system. |
| */ |
| |
| static void |
| spectrum_cs_config(dev_link_t *link) |
| { |
| struct net_device *dev = link->priv; |
| client_handle_t handle = link->handle; |
| struct orinoco_private *priv = netdev_priv(dev); |
| struct orinoco_pccard *card = priv->card; |
| hermes_t *hw = &priv->hw; |
| int last_fn, last_ret; |
| u_char buf[64]; |
| config_info_t conf; |
| cisinfo_t info; |
| tuple_t tuple; |
| cisparse_t parse; |
| void __iomem *mem; |
| |
| CS_CHECK(ValidateCIS, pcmcia_validate_cis(handle, &info)); |
| |
| /* |
| * This reads the card's CONFIG tuple to find its |
| * configuration registers. |
| */ |
| tuple.DesiredTuple = CISTPL_CONFIG; |
| tuple.Attributes = 0; |
| tuple.TupleData = buf; |
| tuple.TupleDataMax = sizeof(buf); |
| tuple.TupleOffset = 0; |
| CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); |
| CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple)); |
| CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse)); |
| link->conf.ConfigBase = parse.config.base; |
| link->conf.Present = parse.config.rmask[0]; |
| |
| /* Configure card */ |
| link->state |= DEV_CONFIG; |
| |
| /* Look up the current Vcc */ |
| CS_CHECK(GetConfigurationInfo, |
| pcmcia_get_configuration_info(handle, &conf)); |
| link->conf.Vcc = conf.Vcc; |
| |
| /* |
| * In this loop, we scan the CIS for configuration table |
| * entries, each of which describes a valid card |
| * configuration, including voltage, IO window, memory window, |
| * and interrupt settings. |
| * |
| * We make no assumptions about the card to be configured: we |
| * use just the information available in the CIS. In an ideal |
| * world, this would work for any PCMCIA card, but it requires |
| * a complete and accurate CIS. In practice, a driver usually |
| * "knows" most of these things without consulting the CIS, |
| * and most client drivers will only use the CIS to fill in |
| * implementation-defined details. |
| */ |
| tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; |
| CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple)); |
| while (1) { |
| cistpl_cftable_entry_t *cfg = &(parse.cftable_entry); |
| cistpl_cftable_entry_t dflt = { .index = 0 }; |
| |
| if ( (pcmcia_get_tuple_data(handle, &tuple) != 0) |
| || (pcmcia_parse_tuple(handle, &tuple, &parse) != 0)) |
| goto next_entry; |
| |
| if (cfg->flags & CISTPL_CFTABLE_DEFAULT) |
| dflt = *cfg; |
| if (cfg->index == 0) |
| goto next_entry; |
| link->conf.ConfigIndex = cfg->index; |
| |
| /* Does this card need audio output? */ |
| if (cfg->flags & CISTPL_CFTABLE_AUDIO) { |
| link->conf.Attributes |= CONF_ENABLE_SPKR; |
| link->conf.Status = CCSR_AUDIO_ENA; |
| } |
| |
| /* 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 (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000) { |
| DEBUG(2, "spectrum_cs_config: Vcc mismatch (conf.Vcc = %d, CIS = %d)\n", conf.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 (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM] / 10000) { |
| DEBUG(2, "spectrum_cs_config: Vcc mismatch (conf.Vcc = %d, CIS = %d)\n", conf.Vcc, dflt.vcc.param[CISTPL_POWER_VNOM] / 10000); |
| if(!ignore_cis_vcc) |
| goto next_entry; |
| } |
| } |
| |
| if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) |
| link->conf.Vpp1 = link->conf.Vpp2 = |
| cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; |
| else if (dflt.vpp1.present & (1 << CISTPL_POWER_VNOM)) |
| link->conf.Vpp1 = link->conf.Vpp2 = |
| dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000; |
| |
| /* Do we need to allocate an interrupt? */ |
| link->conf.Attributes |= CONF_ENABLE_IRQ; |
| |
| /* IO window settings */ |
| link->io.NumPorts1 = link->io.NumPorts2 = 0; |
| if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) { |
| cistpl_io_t *io = |
| (cfg->io.nwin) ? &cfg->io : &dflt.io; |
| link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; |
| if (!(io->flags & CISTPL_IO_8BIT)) |
| link->io.Attributes1 = |
| IO_DATA_PATH_WIDTH_16; |
| if (!(io->flags & CISTPL_IO_16BIT)) |
| link->io.Attributes1 = |
| IO_DATA_PATH_WIDTH_8; |
| link->io.IOAddrLines = |
| io->flags & CISTPL_IO_LINES_MASK; |
| link->io.BasePort1 = io->win[0].base; |
| link->io.NumPorts1 = io->win[0].len; |
| if (io->nwin > 1) { |
| link->io.Attributes2 = |
| link->io.Attributes1; |
| link->io.BasePort2 = io->win[1].base; |
| link->io.NumPorts2 = io->win[1].len; |
| } |
| |
| /* This reserves IO space but doesn't actually enable it */ |
| if (pcmcia_request_io(link->handle, &link->io) != 0) |
| goto next_entry; |
| } |
| |
| |
| /* If we got this far, we're cool! */ |
| |
| break; |
| |
| next_entry: |
| if (link->io.NumPorts1) |
| pcmcia_release_io(link->handle, &link->io); |
| last_ret = pcmcia_get_next_tuple(handle, &tuple); |
| if (last_ret == CS_NO_MORE_ITEMS) { |
| printk(KERN_ERR PFX "GetNextTuple(): No matching " |
| "CIS configuration. Maybe you need the " |
| "ignore_cis_vcc=1 parameter.\n"); |
| goto cs_failed; |
| } |
| } |
| |
| /* |
| * Allocate an interrupt line. Note that this does not assign |
| * a handler to the interrupt, unless the 'Handler' member of |
| * the irq structure is initialized. |
| */ |
| CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq)); |
| |
| /* We initialize the hermes structure before completing PCMCIA |
| * configuration just in case the interrupt handler gets |
| * called. */ |
| mem = ioport_map(link->io.BasePort1, link->io.NumPorts1); |
| if (!mem) |
| goto cs_failed; |
| |
| hermes_struct_init(hw, mem, HERMES_16BIT_REGSPACING); |
| |
| /* |
| * This actually configures the PCMCIA socket -- setting up |
| * the I/O windows and the interrupt mapping, and putting the |
| * card and host interface into "Memory and IO" mode. |
| */ |
| CS_CHECK(RequestConfiguration, |
| pcmcia_request_configuration(link->handle, &link->conf)); |
| |
| /* Ok, we have the configuration, prepare to register the netdev */ |
| dev->base_addr = link->io.BasePort1; |
| dev->irq = link->irq.AssignedIRQ; |
| SET_MODULE_OWNER(dev); |
| card->node.major = card->node.minor = 0; |
| |
| /* Reset card and download firmware */ |
| if (spectrum_cs_hard_reset(priv) != 0) { |
| goto failed; |
| } |
| |
| SET_NETDEV_DEV(dev, &handle_to_dev(handle)); |
| /* Tell the stack we exist */ |
| if (register_netdev(dev) != 0) { |
| printk(KERN_ERR PFX "register_netdev() failed\n"); |
| goto failed; |
| } |
| |
| /* At this point, the dev_node_t structure(s) needs to be |
| * initialized and arranged in a linked list at link->dev. */ |
| strcpy(card->node.dev_name, dev->name); |
| link->dev = &card->node; /* link->dev being non-NULL is also |
| used to indicate that the |
| net_device has been registered */ |
| link->state &= ~DEV_CONFIG_PENDING; |
| |
| /* Finally, report what we've done */ |
| printk(KERN_DEBUG "%s: index 0x%02x: Vcc %d.%d", |
| dev->name, link->conf.ConfigIndex, |
| link->conf.Vcc / 10, link->conf.Vcc % 10); |
| if (link->conf.Vpp1) |
| printk(", Vpp %d.%d", link->conf.Vpp1 / 10, |
| link->conf.Vpp1 % 10); |
| printk(", irq %d", link->irq.AssignedIRQ); |
| if (link->io.NumPorts1) |
| printk(", io 0x%04x-0x%04x", link->io.BasePort1, |
| link->io.BasePort1 + link->io.NumPorts1 - 1); |
| if (link->io.NumPorts2) |
| printk(" & 0x%04x-0x%04x", link->io.BasePort2, |
| link->io.BasePort2 + link->io.NumPorts2 - 1); |
| printk("\n"); |
| |
| return; |
| |
| cs_failed: |
| cs_error(link->handle, last_fn, last_ret); |
| |
| failed: |
| spectrum_cs_release(link); |
| } /* spectrum_cs_config */ |
| |
| /* |
| * After a card is removed, spectrum_cs_release() will unregister the |
| * device, and release the PCMCIA configuration. If the device is |
| * still open, this will be postponed until it is closed. |
| */ |
| static void |
| spectrum_cs_release(dev_link_t *link) |
| { |
| struct net_device *dev = link->priv; |
| struct orinoco_private *priv = netdev_priv(dev); |
| unsigned long flags; |
| |
| /* We're committed to taking the device away now, so mark the |
| * hardware as unavailable */ |
| spin_lock_irqsave(&priv->lock, flags); |
| priv->hw_unavailable++; |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| /* Don't bother checking to see if these succeed or not */ |
| pcmcia_release_configuration(link->handle); |
| if (link->io.NumPorts1) |
| pcmcia_release_io(link->handle, &link->io); |
| if (link->irq.AssignedIRQ) |
| pcmcia_release_irq(link->handle, &link->irq); |
| link->state &= ~DEV_CONFIG; |
| if (priv->hw.iobase) |
| ioport_unmap(priv->hw.iobase); |
| } /* spectrum_cs_release */ |
| |
| /* |
| * The card status event handler. Mostly, this schedules other stuff |
| * to run after an event is received. |
| */ |
| static int |
| spectrum_cs_event(event_t event, int priority, |
| event_callback_args_t * args) |
| { |
| dev_link_t *link = args->client_data; |
| struct net_device *dev = link->priv; |
| struct orinoco_private *priv = netdev_priv(dev); |
| int err = 0; |
| unsigned long flags; |
| |
| switch (event) { |
| case CS_EVENT_CARD_REMOVAL: |
| link->state &= ~DEV_PRESENT; |
| if (link->state & DEV_CONFIG) { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&priv->lock, flags); |
| netif_device_detach(dev); |
| priv->hw_unavailable++; |
| spin_unlock_irqrestore(&priv->lock, flags); |
| } |
| break; |
| |
| case CS_EVENT_CARD_INSERTION: |
| link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; |
| spectrum_cs_config(link); |
| break; |
| |
| case CS_EVENT_PM_SUSPEND: |
| link->state |= DEV_SUSPEND; |
| /* Fall through... */ |
| case CS_EVENT_RESET_PHYSICAL: |
| /* Mark the device as stopped, to block IO until later */ |
| if (link->state & DEV_CONFIG) { |
| /* This is probably racy, but I can't think of |
| a better way, short of rewriting the PCMCIA |
| layer to not suck :-( */ |
| spin_lock_irqsave(&priv->lock, flags); |
| |
| err = __orinoco_down(dev); |
| if (err) |
| printk(KERN_WARNING "%s: %s: Error %d downing interface\n", |
| dev->name, |
| event == CS_EVENT_PM_SUSPEND ? "SUSPEND" : "RESET_PHYSICAL", |
| err); |
| |
| netif_device_detach(dev); |
| priv->hw_unavailable++; |
| |
| spin_unlock_irqrestore(&priv->lock, flags); |
| |
| pcmcia_release_configuration(link->handle); |
| } |
| break; |
| |
| case CS_EVENT_PM_RESUME: |
| link->state &= ~DEV_SUSPEND; |
| /* Fall through... */ |
| case CS_EVENT_CARD_RESET: |
| if (link->state & DEV_CONFIG) { |
| /* FIXME: should we double check that this is |
| * the same card as we had before */ |
| pcmcia_request_configuration(link->handle, &link->conf); |
| netif_device_attach(dev); |
| priv->hw_unavailable--; |
| schedule_work(&priv->reset_work); |
| } |
| break; |
| } |
| |
| return err; |
| } /* spectrum_cs_event */ |
| |
| /********************************************************************/ |
| /* Module initialization */ |
| /********************************************************************/ |
| |
| /* Can't be declared "const" or the whole __initdata section will |
| * become const */ |
| static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION |
| " (Pavel Roskin <proski@gnu.org>," |
| " David Gibson <hermes@gibson.dropbear.id.au>, et al)"; |
| |
| static struct pcmcia_device_id spectrum_cs_ids[] = { |
| PCMCIA_DEVICE_MANF_CARD(0x026c, 0x0001), /* Symbol Spectrum24 LA4100 */ |
| 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, |
| .drv = { |
| .name = DRIVER_NAME, |
| }, |
| .attach = spectrum_cs_attach, |
| .event = spectrum_cs_event, |
| .detach = spectrum_cs_detach, |
| .id_table = spectrum_cs_ids, |
| }; |
| |
| static int __init |
| init_spectrum_cs(void) |
| { |
| printk(KERN_DEBUG "%s\n", version); |
| |
| return pcmcia_register_driver(&orinoco_driver); |
| } |
| |
| static void __exit |
| exit_spectrum_cs(void) |
| { |
| pcmcia_unregister_driver(&orinoco_driver); |
| BUG_ON(dev_list != NULL); |
| } |
| |
| module_init(init_spectrum_cs); |
| module_exit(exit_spectrum_cs); |