forked from Minki/linux
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6: drivers: fix dma_get_required_mask firmware: provide stubs for the FW_LOADER=n case nozomi: fix initialization and early flow control access sysdev: fix problem with sysdev_class being re-registered
This commit is contained in:
Linus Torvalds
commit
ee215ca3b2
@ -648,7 +648,7 @@ u64 dma_get_required_mask(struct device *dev)
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high_totalram += high_totalram - 1;
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mask = (((u64)high_totalram) << 32) + 0xffffffff;
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}
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return mask & *dev->dma_mask;
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return mask;
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}
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EXPORT_SYMBOL_GPL(dma_get_required_mask);
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#endif
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@ -133,6 +133,7 @@ int sysdev_class_register(struct sysdev_class * cls)
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pr_debug("Registering sysdev class '%s'\n",
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kobject_name(&cls->kset.kobj));
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INIT_LIST_HEAD(&cls->drivers);
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memset(&cls->kset.kobj, 0x00, sizeof(struct kobject));
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cls->kset.kobj.parent = &system_kset->kobj;
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cls->kset.kobj.ktype = &ktype_sysdev_class;
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cls->kset.kobj.kset = system_kset;
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@ -227,6 +228,9 @@ int sysdev_register(struct sys_device * sysdev)
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pr_debug("Registering sys device '%s'\n", kobject_name(&sysdev->kobj));
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/* initialize the kobject to 0, in case it had previously been used */
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memset(&sysdev->kobj, 0x00, sizeof(struct kobject));
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/* Make sure the kset is set */
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sysdev->kobj.kset = &cls->kset;
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@ -190,6 +190,14 @@ enum card_type {
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F32_8 = 8192, /* 3072 bytes downl. + 1024 bytes uplink * 2 -> 8192 */
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};
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/* Initialization states a card can be in */
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enum card_state {
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NOZOMI_STATE_UKNOWN = 0,
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NOZOMI_STATE_ENABLED = 1, /* pci device enabled */
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NOZOMI_STATE_ALLOCATED = 2, /* config setup done */
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NOZOMI_STATE_READY = 3, /* flowcontrols received */
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};
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/* Two different toggle channels exist */
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enum channel_type {
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CH_A = 0,
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@ -385,6 +393,7 @@ struct nozomi {
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spinlock_t spin_mutex; /* secures access to registers and tty */
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unsigned int index_start;
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enum card_state state;
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u32 open_ttys;
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};
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@ -686,6 +695,7 @@ static int nozomi_read_config_table(struct nozomi *dc)
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dc->last_ier = dc->last_ier | CTRL_DL;
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writew(dc->last_ier, dc->reg_ier);
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dc->state = NOZOMI_STATE_ALLOCATED;
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dev_info(&dc->pdev->dev, "Initialization OK!\n");
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return 1;
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}
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@ -944,6 +954,14 @@ static int receive_flow_control(struct nozomi *dc)
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case CTRL_APP2:
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port = PORT_APP2;
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enable_ier = APP2_DL;
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if (dc->state == NOZOMI_STATE_ALLOCATED) {
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/*
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* After card initialization the flow control
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* received for APP2 is always the last
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*/
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dc->state = NOZOMI_STATE_READY;
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dev_info(&dc->pdev->dev, "Device READY!\n");
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}
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break;
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default:
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dev_err(&dc->pdev->dev,
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@ -1366,22 +1384,12 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
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dc->pdev = pdev;
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/* Find out what card type it is */
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nozomi_get_card_type(dc);
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ret = pci_enable_device(dc->pdev);
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if (ret) {
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dev_err(&pdev->dev, "Failed to enable PCI Device\n");
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goto err_free;
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}
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start = pci_resource_start(dc->pdev, 0);
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if (start == 0) {
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dev_err(&pdev->dev, "No I/O address for card detected\n");
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ret = -ENODEV;
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goto err_disable_device;
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}
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ret = pci_request_regions(dc->pdev, NOZOMI_NAME);
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if (ret) {
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dev_err(&pdev->dev, "I/O address 0x%04x already in use\n",
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@ -1389,6 +1397,16 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
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goto err_disable_device;
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}
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start = pci_resource_start(dc->pdev, 0);
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if (start == 0) {
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dev_err(&pdev->dev, "No I/O address for card detected\n");
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ret = -ENODEV;
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goto err_rel_regs;
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}
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/* Find out what card type it is */
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nozomi_get_card_type(dc);
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dc->base_addr = ioremap(start, dc->card_type);
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if (!dc->base_addr) {
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dev_err(&pdev->dev, "Unable to map card MMIO\n");
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@ -1425,6 +1443,14 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
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dc->index_start = ndev_idx * MAX_PORT;
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ndevs[ndev_idx] = dc;
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pci_set_drvdata(pdev, dc);
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/* Enable RESET interrupt */
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dc->last_ier = RESET;
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iowrite16(dc->last_ier, dc->reg_ier);
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dc->state = NOZOMI_STATE_ENABLED;
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for (i = 0; i < MAX_PORT; i++) {
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mutex_init(&dc->port[i].tty_sem);
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dc->port[i].tty_open_count = 0;
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@ -1433,12 +1459,6 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
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&pdev->dev);
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}
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/* Enable RESET interrupt. */
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dc->last_ier = RESET;
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writew(dc->last_ier, dc->reg_ier);
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pci_set_drvdata(pdev, dc);
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return 0;
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err_free_sbuf:
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@ -1553,7 +1573,7 @@ static int ntty_open(struct tty_struct *tty, struct file *file)
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struct nozomi *dc = get_dc_by_tty(tty);
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unsigned long flags;
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if (!port || !dc)
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if (!port || !dc || dc->state != NOZOMI_STATE_READY)
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return -ENODEV;
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if (mutex_lock_interruptible(&port->tty_sem))
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@ -1716,6 +1736,10 @@ static int ntty_tiocmget(struct tty_struct *tty, struct file *file)
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static int ntty_tiocmset(struct tty_struct *tty, struct file *file,
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unsigned int set, unsigned int clear)
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{
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struct nozomi *dc = get_dc_by_tty(tty);
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unsigned long flags;
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spin_lock_irqsave(&dc->spin_mutex, flags);
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if (set & TIOCM_RTS)
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set_rts(tty, 1);
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else if (clear & TIOCM_RTS)
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@ -1725,6 +1749,7 @@ static int ntty_tiocmset(struct tty_struct *tty, struct file *file,
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set_dtr(tty, 1);
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else if (clear & TIOCM_DTR)
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set_dtr(tty, 0);
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spin_unlock_irqrestore(&dc->spin_mutex, flags);
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return 0;
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}
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@ -1762,7 +1787,7 @@ static int ntty_ioctl_tiocgicount(struct port *port, void __user *argp)
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icount.brk = cnow.brk;
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icount.buf_overrun = cnow.buf_overrun;
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return copy_to_user(argp, &icount, sizeof(icount));
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return copy_to_user(argp, &icount, sizeof(icount)) ? -EFAULT : 0;
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}
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static int ntty_ioctl(struct tty_struct *tty, struct file *file,
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@ -10,7 +10,10 @@ struct firmware {
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size_t size;
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u8 *data;
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};
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struct device;
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#if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
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int request_firmware(const struct firmware **fw, const char *name,
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struct device *device);
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int request_firmware_nowait(
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@ -19,4 +22,24 @@ int request_firmware_nowait(
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void (*cont)(const struct firmware *fw, void *context));
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void release_firmware(const struct firmware *fw);
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#else
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static inline int request_firmware(const struct firmware **fw,
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const char *name,
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struct device *device)
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{
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return -EINVAL;
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}
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static inline int request_firmware_nowait(
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struct module *module, int uevent,
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const char *name, struct device *device, void *context,
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void (*cont)(const struct firmware *fw, void *context))
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{
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return -EINVAL;
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}
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static inline void release_firmware(const struct firmware *fw)
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{
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}
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#endif
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#endif
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