projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 236dd4d1 AV |
2 | /* |
| 3 | * Freescale QUICC Engine USB Host Controller Driver | |
| 4 | * | |
| 5 | * Copyright (c) Freescale Semicondutor, Inc. 2006. | |
| 6 | * Shlomi Gridish <gridish@freescale.com> | |
| 7 | * Jerry Huang <Chang-Ming.Huang@freescale.com> | |
| 8 | * Copyright (c) Logic Product Development, Inc. 2007 | |
| 9 | * Peter Barada <peterb@logicpd.com> | |
| 10 | * Copyright (c) MontaVista Software, Inc. 2008. | |
| 11 | * Anton Vorontsov <avorontsov@ru.mvista.com> | |
| 236dd4d1 AV |
12 | */ |
| 13 | ||
| 14 | #include <linux/kernel.h> | |
| 15 | #include <linux/errno.h> | |
| 16 | #include <linux/debugfs.h> | |
| 17 | #include <linux/seq_file.h> | |
| 18 | #include <linux/usb.h> | |
| 27729aad | 19 | #include <linux/usb/hcd.h> |
| 236dd4d1 AV |
20 | #include "fhci.h" |
| 21 | ||
| 22 | void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er) | |
| 23 | { | |
| 24 | int i; | |
| 25 | ||
| 26 | if (usb_er == -1) { | |
| 27 | fhci->usb_irq_stat[12]++; | |
| 28 | return; | |
| 29 | } | |
| 30 | ||
| 31 | for (i = 0; i < 12; ++i) { | |
| 32 | if (usb_er & (1 << i)) | |
| 33 | fhci->usb_irq_stat[i]++; | |
| 34 | } | |
| 35 | } | |
| 36 | ||
| 37 | static int fhci_dfs_regs_show(struct seq_file *s, void *v) | |
| 38 | { | |
| 39 | struct fhci_hcd *fhci = s->private; | |
| cf61fdb9 | 40 | struct qe_usb_ctlr __iomem *regs = fhci->regs; |
| 236dd4d1 AV |
41 | |
| 42 | seq_printf(s, | |
| 43 | "mode: 0x%x\n" "addr: 0x%x\n" | |
| 44 | "command: 0x%x\n" "ep0: 0x%x\n" | |
| 45 | "event: 0x%x\n" "mask: 0x%x\n" | |
| 46 | "status: 0x%x\n" "SOF timer: %d\n" | |
| 47 | "frame number: %d\n" | |
| 48 | "lines status: 0x%x\n", | |
| cf61fdb9 GMF |
49 | in_8(®s->usb_usmod), in_8(®s->usb_usadr), |
| 50 | in_8(®s->usb_uscom), in_be16(®s->usb_usep[0]), | |
| 51 | in_be16(®s->usb_usber), in_be16(®s->usb_usbmr), | |
| 52 | in_8(®s->usb_usbs), in_be16(®s->usb_ussft), | |
| 53 | in_be16(®s->usb_usfrn), | |
| 236dd4d1 AV |
54 | fhci_ioports_check_bus_state(fhci)); |
| 55 | ||
| 56 | return 0; | |
| 57 | } | |
| 513f6750 | 58 | DEFINE_SHOW_ATTRIBUTE(fhci_dfs_regs); |
| 236dd4d1 AV |
59 | |
| 60 | static int fhci_dfs_irq_stat_show(struct seq_file *s, void *v) | |
| 61 | { | |
| 62 | struct fhci_hcd *fhci = s->private; | |
| 63 | int *usb_irq_stat = fhci->usb_irq_stat; | |
| 64 | ||
| 65 | seq_printf(s, | |
| 66 | "RXB: %d\n" "TXB: %d\n" "BSY: %d\n" | |
| 67 | "SOF: %d\n" "TXE0: %d\n" "TXE1: %d\n" | |
| 68 | "TXE2: %d\n" "TXE3: %d\n" "IDLE: %d\n" | |
| 69 | "RESET: %d\n" "SFT: %d\n" "MSF: %d\n" | |
| 70 | "IDLE_ONLY: %d\n", | |
| 71 | usb_irq_stat[0], usb_irq_stat[1], usb_irq_stat[2], | |
| 72 | usb_irq_stat[3], usb_irq_stat[4], usb_irq_stat[5], | |
| 73 | usb_irq_stat[6], usb_irq_stat[7], usb_irq_stat[8], | |
| 74 | usb_irq_stat[9], usb_irq_stat[10], usb_irq_stat[11], | |
| 75 | usb_irq_stat[12]); | |
| 76 | ||
| 77 | return 0; | |
| 78 | } | |
| 513f6750 | 79 | DEFINE_SHOW_ATTRIBUTE(fhci_dfs_irq_stat); |
| 236dd4d1 AV |
80 | |
| 81 | void fhci_dfs_create(struct fhci_hcd *fhci) | |
| 82 | { | |
| 83 | struct device *dev = fhci_to_hcd(fhci)->self.controller; | |
| 84 | ||
| 66536ab3 | 85 | fhci->dfs_root = debugfs_create_dir(dev_name(dev), usb_debug_root); |
| 236dd4d1 | 86 | |
| 2ee12724 GKH |
87 | debugfs_create_file("regs", S_IFREG | S_IRUGO, fhci->dfs_root, fhci, |
| 88 | &fhci_dfs_regs_fops); | |
| 89 | debugfs_create_file("irq_stat", S_IFREG | S_IRUGO, fhci->dfs_root, fhci, | |
| 90 | &fhci_dfs_irq_stat_fops); | |
| 236dd4d1 AV |
91 | } |
| 92 | ||
| 93 | void fhci_dfs_destroy(struct fhci_hcd *fhci) | |
| 94 | { | |
| 2ee12724 | 95 | debugfs_remove_recursive(fhci->dfs_root); |
| 236dd4d1 | 96 | } |