1236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov/* 2236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * Freescale QUICC Engine USB Host Controller Driver 3236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * 4236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * Copyright (c) Freescale Semicondutor, Inc. 2006. 5236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * Shlomi Gridish <gridish@freescale.com> 6236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * Jerry Huang <Chang-Ming.Huang@freescale.com> 7236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * Copyright (c) Logic Product Development, Inc. 2007 8236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * Peter Barada <peterb@logicpd.com> 9236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * Copyright (c) MontaVista Software, Inc. 2008. 10236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * Anton Vorontsov <avorontsov@ru.mvista.com> 11236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * 12236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * This program is free software; you can redistribute it and/or modify it 13236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * under the terms of the GNU General Public License as published by the 14236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * Free Software Foundation; either version 2 of the License, or (at your 15236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov * option) any later version. 16236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov */ 17236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 18236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov#include <linux/kernel.h> 19236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov#include <linux/errno.h> 20236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov#include <linux/debugfs.h> 21236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov#include <linux/seq_file.h> 22236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov#include <linux/usb.h> 2327729aadd31dafddaaf64c24f8ef6d0ff750f3aaEric Lescouet#include <linux/usb/hcd.h> 24236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov#include "fhci.h" 25236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 26236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsovvoid fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er) 27236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov{ 28236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov int i; 29236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 30236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov if (usb_er == -1) { 31236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov fhci->usb_irq_stat[12]++; 32236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov return; 33236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov } 34236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 35236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov for (i = 0; i < 12; ++i) { 36236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov if (usb_er & (1 << i)) 37236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov fhci->usb_irq_stat[i]++; 38236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov } 39236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov} 40236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 41236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsovstatic int fhci_dfs_regs_show(struct seq_file *s, void *v) 42236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov{ 43236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov struct fhci_hcd *fhci = s->private; 44cf61fdb944534ffa84a824bb8c31a3826cdc169dGuilherme Maciel Ferreira struct qe_usb_ctlr __iomem *regs = fhci->regs; 45236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 46236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov seq_printf(s, 47236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov "mode: 0x%x\n" "addr: 0x%x\n" 48236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov "command: 0x%x\n" "ep0: 0x%x\n" 49236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov "event: 0x%x\n" "mask: 0x%x\n" 50236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov "status: 0x%x\n" "SOF timer: %d\n" 51236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov "frame number: %d\n" 52236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov "lines status: 0x%x\n", 53cf61fdb944534ffa84a824bb8c31a3826cdc169dGuilherme Maciel Ferreira in_8(®s->usb_usmod), in_8(®s->usb_usadr), 54cf61fdb944534ffa84a824bb8c31a3826cdc169dGuilherme Maciel Ferreira in_8(®s->usb_uscom), in_be16(®s->usb_usep[0]), 55cf61fdb944534ffa84a824bb8c31a3826cdc169dGuilherme Maciel Ferreira in_be16(®s->usb_usber), in_be16(®s->usb_usbmr), 56cf61fdb944534ffa84a824bb8c31a3826cdc169dGuilherme Maciel Ferreira in_8(®s->usb_usbs), in_be16(®s->usb_ussft), 57cf61fdb944534ffa84a824bb8c31a3826cdc169dGuilherme Maciel Ferreira in_be16(®s->usb_usfrn), 58236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov fhci_ioports_check_bus_state(fhci)); 59236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 60236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov return 0; 61236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov} 62236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 63236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsovstatic int fhci_dfs_irq_stat_show(struct seq_file *s, void *v) 64236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov{ 65236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov struct fhci_hcd *fhci = s->private; 66236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov int *usb_irq_stat = fhci->usb_irq_stat; 67236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 68236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov seq_printf(s, 69236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov "RXB: %d\n" "TXB: %d\n" "BSY: %d\n" 70236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov "SOF: %d\n" "TXE0: %d\n" "TXE1: %d\n" 71236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov "TXE2: %d\n" "TXE3: %d\n" "IDLE: %d\n" 72236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov "RESET: %d\n" "SFT: %d\n" "MSF: %d\n" 73236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov "IDLE_ONLY: %d\n", 74236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov usb_irq_stat[0], usb_irq_stat[1], usb_irq_stat[2], 75236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov usb_irq_stat[3], usb_irq_stat[4], usb_irq_stat[5], 76236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov usb_irq_stat[6], usb_irq_stat[7], usb_irq_stat[8], 77236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov usb_irq_stat[9], usb_irq_stat[10], usb_irq_stat[11], 78236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov usb_irq_stat[12]); 79236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 80236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov return 0; 81236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov} 82236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 83236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsovstatic int fhci_dfs_regs_open(struct inode *inode, struct file *file) 84236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov{ 85236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov return single_open(file, fhci_dfs_regs_show, inode->i_private); 86236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov} 87236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 88236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsovstatic int fhci_dfs_irq_stat_open(struct inode *inode, struct file *file) 89236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov{ 90236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov return single_open(file, fhci_dfs_irq_stat_show, inode->i_private); 91236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov} 92236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 93236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsovstatic const struct file_operations fhci_dfs_regs_fops = { 94236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov .open = fhci_dfs_regs_open, 95236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov .read = seq_read, 96236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov .llseek = seq_lseek, 97236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov .release = single_release, 98236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov}; 99236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 100236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsovstatic const struct file_operations fhci_dfs_irq_stat_fops = { 101236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov .open = fhci_dfs_irq_stat_open, 102236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov .read = seq_read, 103236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov .llseek = seq_lseek, 104236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov .release = single_release, 105236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov}; 106236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 107236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsovvoid fhci_dfs_create(struct fhci_hcd *fhci) 108236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov{ 109236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov struct device *dev = fhci_to_hcd(fhci)->self.controller; 110236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 11166536ab36895f7da718693c21f2bde3247c8cf07Greg Kroah-Hartman fhci->dfs_root = debugfs_create_dir(dev_name(dev), usb_debug_root); 112236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov if (!fhci->dfs_root) { 113236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov WARN_ON(1); 114236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov return; 115236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov } 116236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 117236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov fhci->dfs_regs = debugfs_create_file("regs", S_IFREG | S_IRUGO, 118236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov fhci->dfs_root, fhci, &fhci_dfs_regs_fops); 119236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 120236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov fhci->dfs_irq_stat = debugfs_create_file("irq_stat", 121236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov S_IFREG | S_IRUGO, fhci->dfs_root, fhci, 122236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov &fhci_dfs_irq_stat_fops); 123236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 124236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov WARN_ON(!fhci->dfs_regs || !fhci->dfs_irq_stat); 125236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov} 126236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 127236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsovvoid fhci_dfs_destroy(struct fhci_hcd *fhci) 128236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov{ 129236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov if (!fhci->dfs_root) 130236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov return; 131236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov 13264024d9f2af45552b93d9d07d0119fe1855ca45fFabian Frederick debugfs_remove(fhci->dfs_irq_stat); 13364024d9f2af45552b93d9d07d0119fe1855ca45fFabian Frederick debugfs_remove(fhci->dfs_regs); 134236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov debugfs_remove(fhci->dfs_root); 135236dd4d18f293e3c9798f35c08272196826a980dAnton Vorontsov} 136