static int rtlx_module_init(void) { int i; major = register_chrdev(0, module_name, &rtlx_fops); if (major < 0) { printk(register_chrdev_failed); return major; } /* initialise the wait queues */ for (i = 0; i < RTLX_CHANNELS; i++) { init_waitqueue_head(&channel_wqs[i].rt_queue); init_waitqueue_head(&channel_wqs[i].lx_queue); channel_wqs[i].in_open = 0; } /* set up notifiers */ notify.start = starting; notify.stop = stopping; vpe_notify(RTLX_TARG_VPE, ¬ify); if (cpu_has_vint) set_vi_handler(MIPS_CPU_RTLX_IRQ, rtlx_dispatch); rtlx_irq.dev_id = rtlx; setup_irq(rtlx_irq_num, &rtlx_irq); return 0; }
static int __init rtlx_module_init(void) { struct device *dev; int i, err; if (!cpu_has_mipsmt) { printk("VPE loader: not a MIPS MT capable processor\n"); return -ENODEV; } if (tclimit == 0) { printk(KERN_WARNING "No TCs reserved for AP/SP, not " "initializing RTLX.\nPass maxtcs=<n> argument as kernel " "argument\n"); return -ENODEV; } major = register_chrdev(0, module_name, &rtlx_fops); if (major < 0) { printk(register_chrdev_failed); return major; } /* initialise the wait queues */ for (i = 0; i < RTLX_CHANNELS; i++) { init_waitqueue_head(&channel_wqs[i].rt_queue); init_waitqueue_head(&channel_wqs[i].lx_queue); atomic_set(&channel_wqs[i].in_open, 0); mutex_init(&channel_wqs[i].mutex); dev = device_create(mt_class, NULL, MKDEV(major, i), "%s%d", module_name, i); if (IS_ERR(dev)) { err = PTR_ERR(dev); goto out_chrdev; } } /* set up notifiers */ notify.start = starting; notify.stop = stopping; vpe_notify(tclimit, ¬ify); if (cpu_has_vint) set_vi_handler(MIPS_CPU_RTLX_IRQ, rtlx_dispatch); rtlx_irq.dev_id = rtlx; setup_irq(rtlx_irq_num, &rtlx_irq); return 0; out_chrdev: for (i = 0; i < RTLX_CHANNELS; i++) device_destroy(mt_class, MKDEV(major, i)); return err; }
static int rtlx_module_init(void) { struct device *dev; int i, err; major = register_chrdev(0, module_name, &rtlx_fops); if (major < 0) { printk(register_chrdev_failed); return major; } /* initialise the wait queues */ for (i = 0; i < RTLX_CHANNELS; i++) { init_waitqueue_head(&channel_wqs[i].rt_queue); init_waitqueue_head(&channel_wqs[i].lx_queue); atomic_set(&channel_wqs[i].in_open, 0); dev = device_create(mt_class, NULL, MKDEV(major, i), "%s%d", module_name, i); if (IS_ERR(dev)) { err = PTR_ERR(dev); goto out_chrdev; } } /* set up notifiers */ notify.start = starting; notify.stop = stopping; vpe_notify(RTLX_TARG_VPE, ¬ify); if (cpu_has_vint) set_vi_handler(MIPS_CPU_RTLX_IRQ, rtlx_dispatch); rtlx_irq.dev_id = rtlx; setup_irq(rtlx_irq_num, &rtlx_irq); return 0; out_chrdev: for (i = 0; i < RTLX_CHANNELS; i++) device_destroy(mt_class, MKDEV(major, i)); return err; }
int __init rtlx_module_init(void) { struct device *dev; int i, err; if (!cpu_has_mipsmt) { pr_warn("VPE loader: not a MIPS MT capable processor\n"); return -ENODEV; } if (aprp_cpu_index() == 0) { pr_warn("No TCs reserved for AP/SP, not initializing RTLX.\n" "Pass maxtcs=<n> argument as kernel argument\n"); return -ENODEV; } major = register_chrdev(0, RTLX_MODULE_NAME, &rtlx_fops); if (major < 0) { pr_err("rtlx_module_init: unable to register device\n"); return major; } /* initialise the wait queues */ for (i = 0; i < RTLX_CHANNELS; i++) { init_waitqueue_head(&channel_wqs[i].rt_queue); init_waitqueue_head(&channel_wqs[i].lx_queue); atomic_set(&channel_wqs[i].in_open, 0); mutex_init(&channel_wqs[i].mutex); dev = device_create(mt_class, NULL, MKDEV(major, i), NULL, "%s%d", RTLX_MODULE_NAME, i); if (IS_ERR(dev)) { err = PTR_ERR(dev); goto out_chrdev; } } /* set up notifiers */ rtlx_notify.start = rtlx_starting; rtlx_notify.stop = rtlx_stopping; vpe_notify(aprp_cpu_index(), &rtlx_notify); if (cpu_has_vint) { aprp_hook = rtlx_dispatch; } else { pr_err("APRP RTLX init on non-vectored-interrupt processor\n"); err = -ENODEV; goto out_class; } rtlx_irq.dev_id = rtlx; err = setup_irq(rtlx_irq_num, &rtlx_irq); if (err) goto out_class; return 0; out_class: for (i = 0; i < RTLX_CHANNELS; i++) device_destroy(mt_class, MKDEV(major, i)); out_chrdev: unregister_chrdev(major, RTLX_MODULE_NAME); return err; }