ipw2200.c

linux-2.6.15.6

void ipw_led_init(struct ipw_priv *priv)
{
	priv->nic_type = priv->eeprom[EEPROM_NIC_TYPE];

	/* Set the default PINs for the link and activity leds */
	priv->led_activity_on = IPW_ACTIVITY_LED;
	priv->led_activity_off = ~(IPW_ACTIVITY_LED);

	priv->led_association_on = IPW_ASSOCIATED_LED;
	priv->led_association_off = ~(IPW_ASSOCIATED_LED);

	/* Set the default PINs for the OFDM leds */
	priv->led_ofdm_on = IPW_OFDM_LED;
	priv->led_ofdm_off = ~(IPW_OFDM_LED);

	switch (priv->nic_type) {
	case EEPROM_NIC_TYPE_1:
		/* In this NIC type, the LEDs are reversed.... */
		priv->led_activity_on = IPW_ASSOCIATED_LED;
		priv->led_activity_off = ~(IPW_ASSOCIATED_LED);
		priv->led_association_on = IPW_ACTIVITY_LED;
		priv->led_association_off = ~(IPW_ACTIVITY_LED);

		if (!(priv->config & CFG_NO_LED))
			ipw_led_band_on(priv);

		/* And we don't blink link LEDs for this nic, so
		 * just return here */
		return;

	case EEPROM_NIC_TYPE_3:
	case EEPROM_NIC_TYPE_2:
	case EEPROM_NIC_TYPE_4:
	case EEPROM_NIC_TYPE_0:
		break;

	default:
		IPW_DEBUG_INFO("Unknown NIC type from EEPROM: %d\n",
			       priv->nic_type);
		priv->nic_type = EEPROM_NIC_TYPE_0;
		break;
	}

	if (!(priv->config & CFG_NO_LED)) {
		if (priv->status & STATUS_ASSOCIATED)
			ipw_led_link_on(priv);
		else
			ipw_led_link_off(priv);
	}
}

void ipw_led_shutdown(struct ipw_priv *priv)
{
	ipw_led_activity_off(priv);
	ipw_led_link_off(priv);
	ipw_led_band_off(priv);
	cancel_delayed_work(&priv->led_link_on);
	cancel_delayed_work(&priv->led_link_off);
	cancel_delayed_work(&priv->led_act_off);
}

/*
 * The following adds a new attribute to the sysfs representation
 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/)
 * used for controling the debug level.
 *
 * See the level definitions in ipw for details.
 */
static ssize_t show_debug_level(struct device_driver *d, char *buf)
{
	return sprintf(buf, "0x%08X\n", ipw_debug_level);
}

static ssize_t store_debug_level(struct device_driver *d, const char *buf,
				 size_t count)
{
	char *p = (char *)buf;
	u32 val;

	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
		p++;
		if (p[0] == 'x' || p[0] == 'X')
			p++;
		val = simple_strtoul(p, &p, 16);
	} else
		val = simple_strtoul(p, &p, 10);
	if (p == buf)
		printk(KERN_INFO DRV_NAME
		       ": %s is not in hex or decimal form.\n", buf);
	else
		ipw_debug_level = val;

	return strnlen(buf, count);
}

static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
		   show_debug_level, store_debug_level);

static inline u32 ipw_get_event_log_len(struct ipw_priv *priv)
{
	return ipw_read_reg32(priv, ipw_read32(priv, IPW_EVENT_LOG));
}

static void ipw_capture_event_log(struct ipw_priv *priv,
				  u32 log_len, struct ipw_event *log)
{
	u32 base;

	if (log_len) {
		base = ipw_read32(priv, IPW_EVENT_LOG);
		ipw_read_indirect(priv, base + sizeof(base) + sizeof(u32),
				  (u8 *) log, sizeof(*log) * log_len);
	}
}

static struct ipw_fw_error *ipw_alloc_error_log(struct ipw_priv *priv)
{
	struct ipw_fw_error *error;
	u32 log_len = ipw_get_event_log_len(priv);
	u32 base = ipw_read32(priv, IPW_ERROR_LOG);
	u32 elem_len = ipw_read_reg32(priv, base);

	error = kmalloc(sizeof(*error) +
			sizeof(*error->elem) * elem_len +
			sizeof(*error->log) * log_len, GFP_ATOMIC);
	if (!error) {
		IPW_ERROR("Memory allocation for firmware error log "
			  "failed.\n");
		return NULL;
	}
	error->jiffies = jiffies;
	error->status = priv->status;
	error->config = priv->config;
	error->elem_len = elem_len;
	error->log_len = log_len;
	error->elem = (struct ipw_error_elem *)error->payload;
	error->log = (struct ipw_event *)(error->elem + elem_len);

	ipw_capture_event_log(priv, log_len, error->log);

	if (elem_len)
		ipw_read_indirect(priv, base + sizeof(base), (u8 *) error->elem,
				  sizeof(*error->elem) * elem_len);

	return error;
}

static void ipw_free_error_log(struct ipw_fw_error *error)
{
	if (error)
		kfree(error);
}

static ssize_t show_event_log(struct device *d,
			      struct device_attribute *attr, char *buf)
{
	struct ipw_priv *priv = dev_get_drvdata(d);
	u32 log_len = ipw_get_event_log_len(priv);
	struct ipw_event log[log_len];
	u32 len = 0, i;

	ipw_capture_event_log(priv, log_len, log);

	len += snprintf(buf + len, PAGE_SIZE - len, "%08X", log_len);
	for (i = 0; i < log_len; i++)
		len += snprintf(buf + len, PAGE_SIZE - len,
				"\n%08X%08X%08X",
				log[i].time, log[i].event, log[i].data);
	len += snprintf(buf + len, PAGE_SIZE - len, "\n");
	return len;
}

static DEVICE_ATTR(event_log, S_IRUGO, show_event_log, NULL);

static ssize_t show_error(struct device *d,
			  struct device_attribute *attr, char *buf)
{
	struct ipw_priv *priv = dev_get_drvdata(d);
	u32 len = 0, i;
	if (!priv->error)
		return 0;
	len += snprintf(buf + len, PAGE_SIZE - len,
			"%08lX%08X%08X%08X",
			priv->error->jiffies,
			priv->error->status,
			priv->error->config, priv->error->elem_len);
	for (i = 0; i < priv->error->elem_len; i++)
		len += snprintf(buf + len, PAGE_SIZE - len,
				"\n%08X%08X%08X%08X%08X%08X%08X",
				priv->error->elem[i].time,
				priv->error->elem[i].desc,
				priv->error->elem[i].blink1,
				priv->error->elem[i].blink2,
				priv->error->elem[i].link1,
				priv->error->elem[i].link2,
				priv->error->elem[i].data);

	len += snprintf(buf + len, PAGE_SIZE - len,
			"\n%08X", priv->error->log_len);
	for (i = 0; i < priv->error->log_len; i++)
		len += snprintf(buf + len, PAGE_SIZE - len,
				"\n%08X%08X%08X",
				priv->error->log[i].time,
				priv->error->log[i].event,
				priv->error->log[i].data);
	len += snprintf(buf + len, PAGE_SIZE - len, "\n");
	return len;
}

static ssize_t clear_error(struct device *d,
			   struct device_attribute *attr,
			   const char *buf, size_t count)
{
	struct ipw_priv *priv = dev_get_drvdata(d);
	if (priv->error) {
		ipw_free_error_log(priv->error);
		priv->error = NULL;
	}
	return count;
}

static DEVICE_ATTR(error, S_IRUGO | S_IWUSR, show_error, clear_error);

static ssize_t show_cmd_log(struct device *d,
			    struct device_attribute *attr, char *buf)
{
	struct ipw_priv *priv = dev_get_drvdata(d);
	u32 len = 0, i;
	if (!priv->cmdlog)
		return 0;
	for (i = (priv->cmdlog_pos + 1) % priv->cmdlog_len;
	     (i != priv->cmdlog_pos) && (PAGE_SIZE - len);
	     i = (i + 1) % priv->cmdlog_len) {
		len +=
		    snprintf(buf + len, PAGE_SIZE - len,
			     "\n%08lX%08X%08X%08X\n", priv->cmdlog[i].jiffies,
			     priv->cmdlog[i].retcode, priv->cmdlog[i].cmd.cmd,
			     priv->cmdlog[i].cmd.len);
		len +=
		    snprintk_buf(buf + len, PAGE_SIZE - len,
				 (u8 *) priv->cmdlog[i].cmd.param,
				 priv->cmdlog[i].cmd.len);
		len += snprintf(buf + len, PAGE_SIZE - len, "\n");
	}
	len += snprintf(buf + len, PAGE_SIZE - len, "\n");
	return len;
}

static DEVICE_ATTR(cmd_log, S_IRUGO, show_cmd_log, NULL);

static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
			     char *buf)
{
	struct ipw_priv *priv = dev_get_drvdata(d);
	return sprintf(buf, "%d\n", priv->ieee->scan_age);
}

static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
			      const char *buf, size_t count)
{
	struct ipw_priv *priv = dev_get_drvdata(d);
#ifdef CONFIG_IPW_DEBUG
	struct net_device *dev = priv->net_dev;
#endif
	char buffer[] = "00000000";
	unsigned long len =
	    (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1;
	unsigned long val;
	char *p = buffer;

	IPW_DEBUG_INFO("enter\n");

	strncpy(buffer, buf, len);
	buffer[len] = 0;

	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
		p++;
		if (p[0] == 'x' || p[0] == 'X')
			p++;
		val = simple_strtoul(p, &p, 16);
	} else
		val = simple_strtoul(p, &p, 10);
	if (p == buffer) {
		IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
	} else {
		priv->ieee->scan_age = val;
		IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
	}

	IPW_DEBUG_INFO("exit\n");
	return len;
}

static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age);

static ssize_t show_led(struct device *d, struct device_attribute *attr,
			char *buf)
{
	struct ipw_priv *priv = dev_get_drvdata(d);
	return sprintf(buf, "%d\n", (priv->config & CFG_NO_LED) ? 0 : 1);
}

static ssize_t store_led(struct device *d, struct device_attribute *attr,
			 const char *buf, size_t count)
{
	struct ipw_priv *priv = dev_get_drvdata(d);

	IPW_DEBUG_INFO("enter\n");

	if (count == 0)
		return 0;

	if (*buf == 0) {
		IPW_DEBUG_LED("Disabling LED control.\n");
		priv->config |= CFG_NO_LED;
		ipw_led_shutdown(priv);
	} else {
		IPW_DEBUG_LED("Enabling LED control.\n");
		priv->config &= ~CFG_NO_LED;
		ipw_led_init(priv);
	}

	IPW_DEBUG_INFO("exit\n");
	return count;
}

static DEVICE_ATTR(led, S_IWUSR | S_IRUGO, show_led, store_led);

static ssize_t show_status(struct device *d,
			   struct device_attribute *attr, char *buf)
{
	struct ipw_priv *p = d->driver_data;
	return sprintf(buf, "0x%08x\n", (int)p->status);
}

static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);

static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
			char *buf)
{
	struct ipw_priv *p = d->driver_data;
	return sprintf(buf, "0x%08x\n", (int)p->config);
}

static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL);

static ssize_t show_nic_type(struct device *d,
			     struct device_attribute *attr, char *buf)
{
	struct ipw_priv *priv = d->driver_data;
	return sprintf(buf, "TYPE: %d\n", priv->nic_type);
}

static DEVICE_ATTR(nic_type, S_IRUGO, show_nic_type, NULL);

static ssize_t show_ucode_version(struct device *d,
				  struct device_attribute *attr, char *buf)
{
	u32 len = sizeof(u32), tmp = 0;
	struct ipw_priv *p = d->driver_data;

	if (ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len))
		return 0;

	return sprintf(buf, "0x%08x\n", tmp);
}

static DEVICE_ATTR(ucode_version, S_IWUSR | S_IRUGO, show_ucode_version, NULL);

static ssize_t show_rtc(struct device *d, struct device_attribute *attr,
			char *buf)
{
	u32 len = sizeof(u32), tmp = 0;
	struct ipw_priv *p = d->driver_data;

	if (ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len))
		return 0;

	return sprintf(buf, "0x%08x\n", tmp);
}

static DEVICE_ATTR(rtc, S_IWUSR | S_IRUGO, show_rtc, NULL);

/*
 * Add a device attribute to view/control the delay between eeprom
 * operations.
 */
static ssize_t show_eeprom_delay(struct device *d,
				 struct device_attribute *attr, char *buf)
{
	int n = ((struct ipw_priv *)d->driver_data)->eeprom_delay;
	return sprintf(buf, "%i\n", n);
}
static ssize_t store_eeprom_delay(struct device *d,
				  struct device_attribute *attr,
				  const char *buf, size_t count)
{
	struct ipw_priv *p = d->driver_data;
	sscanf(buf, "%i", &p->eeprom_delay);
	return strnlen(buf, count);
}

static DEVICE_ATTR(eeprom_delay, S_IWUSR | S_IRUGO,
		   show_eeprom_delay, store_eeprom_delay);

static ssize_t show_command_event_reg(struct device *d,
				      struct device_attribute *attr, char *buf)
{
	u32 reg = 0;
	struct ipw_priv *p = d->driver_data;

	reg = ipw_read_reg32(p, IPW_INTERNAL_CMD_EVENT);
	return sprintf(buf, "0x%08x\n", reg);
}
static ssize_t store_command_event_reg(struct device *d,
				       struct device_attribute *attr,
				       const char *buf, size_t count)
{
	u32 reg;
	struct ipw_priv *p = d->driver_data;

	sscanf(buf, "%x", &reg);
	ipw_write_reg32(p, IPW_INTERNAL_CMD_EVENT, reg);
	return strnlen(buf, count);
}

static DEVICE_ATTR(command_event_reg, S_IWUSR | S_IRUGO,
		   show_command_event_reg, store_command_event_reg);

static ssize_t show_mem_gpio_reg(struct device *d,
				 struct device_attribute *attr, char *buf)
{
	u32 reg = 0;
	struct ipw_priv *p = d->driver_data;

	reg = ipw_read_reg32(p, 0x301100);
	return sprintf(buf, "0x%08x\n", reg);
}
static ssize_t store_mem_gpio_reg(struct device *d,
				  struct device_attribute *attr,
				  const char *buf, size_t count)
{
	u32 reg;
	struct ipw_priv *p = d->driver_data;

	sscanf(buf, "%x", &reg);
	ipw_write_reg32(p, 0x301100, reg);
	return strnlen(buf, count);
}

static DEVICE_ATTR(mem_gpio_reg, S_IWUSR | S_IRUGO,
		   show_mem_gpio_reg, store_mem_gpio_reg);

static ssize_t show_indirect_dword(struct device *d,
				   struct device_attribute *attr, char *buf)
{
	u32 reg = 0;
	struct ipw_priv *priv = d->driver_data;

	if (priv->status & STATUS_INDIRECT_DWORD)
		reg = ipw_read_reg32(priv, priv->indirect_dword);
	else
		reg = 0;

	return sprintf(buf, "0x%08x\n", reg);
}
static ssize_t store_indirect_dword(struct device *d,
				    struct device_attribute *attr,
				    const char *buf, size_t count)
{
	struct ipw_priv *priv = d->driver_data;

	sscanf(buf, "%x", &priv->indirect_dword);
	priv->status |= STATUS_INDIRECT_DWORD;
	return strnlen(buf, count);
}

static DEVICE_ATTR(indirect_dword, S_IWUSR | S_IRUGO,
		   show_indirect_dword, store_indirect_dword);

static ssize_t show_indirect_byte(struct device *d,
				  struct device_attribute *attr, char *buf)
{
	u8 reg = 0;
	struct ipw_priv *priv = d->driver_data;

	if (priv->status & STATUS_INDIRECT_BYTE)
		reg = ipw_read_reg8(priv, priv->indirect_byte);