1dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel/* 2dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * Wireless Host Controller (WHC) debug. 3dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * 4dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * Copyright (C) 2008 Cambridge Silicon Radio Ltd. 5dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * 6dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * This program is free software; you can redistribute it and/or 7dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * modify it under the terms of the GNU General Public License version 8dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * 2 as published by the Free Software Foundation. 9dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * 10dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * This program is distributed in the hope that it will be useful, 11dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * but WITHOUT ANY WARRANTY; without even the implied warranty of 12dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * GNU General Public License for more details. 14dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * 15dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * You should have received a copy of the GNU General Public License 16dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel * along with this program. If not, see <http://www.gnu.org/licenses/>. 17dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel */ 185a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 19dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel#include <linux/kernel.h> 20dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel#include <linux/debugfs.h> 21dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel#include <linux/seq_file.h> 22f940fcd8eadfe5b909a1474b57de7755edeee62bPaul Gortmaker#include <linux/export.h> 23dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 24dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel#include "../../wusbcore/wusbhc.h" 25dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 26dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel#include "whcd.h" 27dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 28dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabelstruct whc_dbg { 29dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel struct dentry *di_f; 30dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel struct dentry *asl_f; 31dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel struct dentry *pzl_f; 32dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel}; 33dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 34277aa97254533c7e49a04244dfbdccbae70a7f0eBill Pembertonstatic void qset_print(struct seq_file *s, struct whc_qset *qset) 35dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel{ 36d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel static const char *qh_type[] = { 37d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel "ctrl", "isoc", "bulk", "intr", "rsvd", "rsvd", "rsvd", "lpintr", }; 38dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel struct whc_std *std; 39dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel struct urb *urb = NULL; 40dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel int i; 41dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 42d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel seq_printf(s, "qset %08x", (u32)qset->qset_dma); 43d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel if (&qset->list_node == qset->whc->async_list.prev) { 44d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel seq_printf(s, " (dummy)\n"); 45d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel } else { 46d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel seq_printf(s, " ep%d%s-%s maxpkt: %d\n", 47d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel qset->qh.info1 & 0x0f, 48d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel (qset->qh.info1 >> 4) & 0x1 ? "in" : "out", 49d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel qh_type[(qset->qh.info1 >> 5) & 0x7], 50d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel (qset->qh.info1 >> 16) & 0xffff); 51d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel } 52dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel seq_printf(s, " -> %08x\n", (u32)qset->qh.link); 53dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel seq_printf(s, " info: %08x %08x %08x\n", 54d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel qset->qh.info1, qset->qh.info2, qset->qh.info3); 55d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel seq_printf(s, " sts: %04x errs: %d curwin: %08x\n", 56d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel qset->qh.status, qset->qh.err_count, qset->qh.cur_window); 57dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel seq_printf(s, " TD: sts: %08x opts: %08x\n", 58d19fc291929aae528a40dd17c71a81f26254715dDavid Vrabel qset->qh.overlay.qtd.status, qset->qh.overlay.qtd.options); 59dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 60dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel for (i = 0; i < WHCI_QSET_TD_MAX; i++) { 61dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel seq_printf(s, " %c%c TD[%d]: sts: %08x opts: %08x ptr: %08x\n", 62dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel i == qset->td_start ? 'S' : ' ', 63dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel i == qset->td_end ? 'E' : ' ', 64dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel i, qset->qtd[i].status, qset->qtd[i].options, 65dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel (u32)qset->qtd[i].page_list_ptr); 66dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel } 67dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel seq_printf(s, " ntds: %d\n", qset->ntds); 68dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel list_for_each_entry(std, &qset->stds, list_node) { 69dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel if (urb != std->urb) { 70dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel urb = std->urb; 71dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel seq_printf(s, " urb %p transferred: %d bytes\n", urb, 72dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel urb->actual_length); 73dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel } 74dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel if (std->qtd) 75dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel seq_printf(s, " sTD[%td]: %zu bytes @ %08x\n", 76dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel std->qtd - &qset->qtd[0], 77dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel std->len, std->num_pointers ? 78dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr); 79dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel else 80dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel seq_printf(s, " sTD[-]: %zd bytes @ %08x\n", 81dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel std->len, std->num_pointers ? 82dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr); 83dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel } 84dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel} 85dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 86dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabelstatic int di_print(struct seq_file *s, void *p) 87dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel{ 88dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel struct whc *whc = s->private; 89dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel char buf[72]; 90dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel int d; 91dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 92dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel for (d = 0; d < whc->n_devices; d++) { 93dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel struct di_buf_entry *di = &whc->di_buf[d]; 94dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 95dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel bitmap_scnprintf(buf, sizeof(buf), 96dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel (unsigned long *)di->availability_info, UWB_NUM_MAS); 97dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 98dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel seq_printf(s, "DI[%d]\n", d); 99dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel seq_printf(s, " availability: %s\n", buf); 100dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel seq_printf(s, " %c%c key idx: %d dev addr: %d\n", 101dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel (di->addr_sec_info & WHC_DI_SECURE) ? 'S' : ' ', 102dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel (di->addr_sec_info & WHC_DI_DISABLE) ? 'D' : ' ', 103dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel (di->addr_sec_info & WHC_DI_KEY_IDX_MASK) >> 8, 104dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel (di->addr_sec_info & WHC_DI_DEV_ADDR_MASK)); 105dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel } 106dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel return 0; 107dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel} 108dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 109dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabelstatic int asl_print(struct seq_file *s, void *p) 110dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel{ 111dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel struct whc *whc = s->private; 112dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel struct whc_qset *qset; 113dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 114dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel list_for_each_entry(qset, &whc->async_list, list_node) { 115dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel qset_print(s, qset); 116dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel } 117dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 118dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel return 0; 119dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel} 120dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 121dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabelstatic int pzl_print(struct seq_file *s, void *p) 122dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel{ 123dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel struct whc *whc = s->private; 124dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel struct whc_qset *qset; 125dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel int period; 126dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 127dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel for (period = 0; period < 5; period++) { 128dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel seq_printf(s, "Period %d\n", period); 129dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel list_for_each_entry(qset, &whc->periodic_list[period], list_node) { 130dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel qset_print(s, qset); 131dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel } 132dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel } 133dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel return 0; 134dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel} 135dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 136dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabelstatic int di_open(struct inode *inode, struct file *file) 137dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel{ 138dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel return single_open(file, di_print, inode->i_private); 139dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel} 140dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 141dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabelstatic int asl_open(struct inode *inode, struct file *file) 142dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel{ 143dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel return single_open(file, asl_print, inode->i_private); 144dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel} 145dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 146dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabelstatic int pzl_open(struct inode *inode, struct file *file) 147dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel{ 148dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel return single_open(file, pzl_print, inode->i_private); 149dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel} 150dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 151828c09509b9695271bcbdc53e9fc9a6a737148d2Alexey Dobriyanstatic const struct file_operations di_fops = { 152dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .open = di_open, 153dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .read = seq_read, 154dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .llseek = seq_lseek, 155dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .release = single_release, 156dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .owner = THIS_MODULE, 157dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel}; 158dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 159828c09509b9695271bcbdc53e9fc9a6a737148d2Alexey Dobriyanstatic const struct file_operations asl_fops = { 160dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .open = asl_open, 161dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .read = seq_read, 162dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .llseek = seq_lseek, 163dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .release = single_release, 164dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .owner = THIS_MODULE, 165dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel}; 166dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 167828c09509b9695271bcbdc53e9fc9a6a737148d2Alexey Dobriyanstatic const struct file_operations pzl_fops = { 168dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .open = pzl_open, 169dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .read = seq_read, 170dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .llseek = seq_lseek, 171dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .release = single_release, 172dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel .owner = THIS_MODULE, 173dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel}; 174dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 175dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabelvoid whc_dbg_init(struct whc *whc) 176dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel{ 177dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel if (whc->wusbhc.pal.debugfs_dir == NULL) 178dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel return; 179dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 180dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel whc->dbg = kzalloc(sizeof(struct whc_dbg), GFP_KERNEL); 181dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel if (whc->dbg == NULL) 182dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel return; 183dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 184dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel whc->dbg->di_f = debugfs_create_file("di", 0444, 185dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel whc->wusbhc.pal.debugfs_dir, whc, 186dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel &di_fops); 187dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel whc->dbg->asl_f = debugfs_create_file("asl", 0444, 188dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel whc->wusbhc.pal.debugfs_dir, whc, 189dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel &asl_fops); 190dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel whc->dbg->pzl_f = debugfs_create_file("pzl", 0444, 191dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel whc->wusbhc.pal.debugfs_dir, whc, 192dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel &pzl_fops); 193dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel} 194dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel 195dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabelvoid whc_dbg_clean_up(struct whc *whc) 196dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel{ 197dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel if (whc->dbg) { 198dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel debugfs_remove(whc->dbg->pzl_f); 199dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel debugfs_remove(whc->dbg->asl_f); 200dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel debugfs_remove(whc->dbg->di_f); 201dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel kfree(whc->dbg); 202dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel } 203dcc7461eef7341e84e2f7274f904ce01a43b2506David Vrabel} 204