diff options
Diffstat (limited to 'drivers/usb/host/xhci-debugfs.c')
| -rw-r--r-- | drivers/usb/host/xhci-debugfs.c | 143 |
1 files changed, 116 insertions, 27 deletions
diff --git a/drivers/usb/host/xhci-debugfs.c b/drivers/usb/host/xhci-debugfs.c index f8ba15e7c225..c6d44977193f 100644 --- a/drivers/usb/host/xhci-debugfs.c +++ b/drivers/usb/host/xhci-debugfs.c @@ -214,14 +214,11 @@ static void xhci_ring_dump_segment(struct seq_file *s, static int xhci_ring_trb_show(struct seq_file *s, void *unused) { - int i; struct xhci_ring *ring = *(struct xhci_ring **)s->private; struct xhci_segment *seg = ring->first_seg; - for (i = 0; i < ring->num_segs; i++) { + xhci_for_each_ring_seg(ring->first_seg, seg) xhci_ring_dump_segment(s, seg); - seg = seg->next; - } return 0; } @@ -235,16 +232,7 @@ static struct xhci_file_map ring_files[] = { static int xhci_ring_open(struct inode *inode, struct file *file) { - int i; - struct xhci_file_map *f_map; - const char *file_name = file_dentry(file)->d_iname; - - for (i = 0; i < ARRAY_SIZE(ring_files); i++) { - f_map = &ring_files[i]; - - if (strcmp(f_map->name, file_name) == 0) - break; - } + const struct xhci_file_map *f_map = debugfs_get_aux(file); return single_open(file, f_map->show, inode->i_private); } @@ -291,12 +279,13 @@ static int xhci_endpoint_context_show(struct seq_file *s, void *unused) for (ep_index = 0; ep_index < 31; ep_index++) { ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index); dma = dev->out_ctx->dma + (ep_index + 1) * CTX_SIZE(xhci->hcc_params); - seq_printf(s, "%pad: %s\n", &dma, + seq_printf(s, "%pad: %s, virt_state:%#x\n", &dma, xhci_decode_ep_context(str, le32_to_cpu(ep_ctx->ep_info), le32_to_cpu(ep_ctx->ep_info2), le64_to_cpu(ep_ctx->deq), - le32_to_cpu(ep_ctx->tx_info))); + le32_to_cpu(ep_ctx->tx_info)), + dev->eps[ep_index].ep_state); } return 0; @@ -320,16 +309,7 @@ static struct xhci_file_map context_files[] = { static int xhci_context_open(struct inode *inode, struct file *file) { - int i; - struct xhci_file_map *f_map; - const char *file_name = file_dentry(file)->d_iname; - - for (i = 0; i < ARRAY_SIZE(context_files); i++) { - f_map = &context_files[i]; - - if (strcmp(f_map->name, file_name) == 0) - break; - } + const struct xhci_file_map *f_map = debugfs_get_aux(file); return single_open(file, f_map->show, inode->i_private); } @@ -412,7 +392,8 @@ static void xhci_debugfs_create_files(struct xhci_hcd *xhci, int i; for (i = 0; i < nentries; i++) - debugfs_create_file(files[i].name, 0444, parent, data, fops); + debugfs_create_file_aux(files[i].name, 0444, parent, + data, &files[i], fops); } static struct dentry *xhci_debugfs_create_ring_dir(struct xhci_hcd *xhci, @@ -650,6 +631,112 @@ static void xhci_debugfs_create_ports(struct xhci_hcd *xhci, } } +static int xhci_port_bw_show(struct xhci_hcd *xhci, u8 dev_speed, + struct seq_file *s) +{ + unsigned int num_ports; + unsigned int i; + int ret; + struct xhci_container_ctx *ctx; + struct usb_hcd *hcd = xhci_to_hcd(xhci); + struct device *dev = hcd->self.controller; + + ret = pm_runtime_get_sync(dev); + if (ret < 0) + return ret; + + num_ports = HCS_MAX_PORTS(xhci->hcs_params1); + + ctx = xhci_alloc_port_bw_ctx(xhci, 0); + if (!ctx) { + pm_runtime_put_sync(dev); + return -ENOMEM; + } + + /* get roothub port bandwidth */ + ret = xhci_get_port_bandwidth(xhci, ctx, dev_speed); + if (ret) + goto err_out; + + /* print all roothub ports available bandwidth + * refer to xhci rev1_2 protocol 6.2.6 , byte 0 is reserved + */ + for (i = 1; i < num_ports+1; i++) + seq_printf(s, "port[%d] available bw: %d%%.\n", i, + ctx->bytes[i]); +err_out: + pm_runtime_put_sync(dev); + xhci_free_port_bw_ctx(xhci, ctx); + return ret; +} + +static int xhci_ss_bw_show(struct seq_file *s, void *unused) +{ + int ret; + struct xhci_hcd *xhci = (struct xhci_hcd *)s->private; + + ret = xhci_port_bw_show(xhci, USB_SPEED_SUPER, s); + return ret; +} + +static int xhci_hs_bw_show(struct seq_file *s, void *unused) +{ + int ret; + struct xhci_hcd *xhci = (struct xhci_hcd *)s->private; + + ret = xhci_port_bw_show(xhci, USB_SPEED_HIGH, s); + return ret; +} + +static int xhci_fs_bw_show(struct seq_file *s, void *unused) +{ + int ret; + struct xhci_hcd *xhci = (struct xhci_hcd *)s->private; + + ret = xhci_port_bw_show(xhci, USB_SPEED_FULL, s); + return ret; +} + +static struct xhci_file_map bw_context_files[] = { + {"SS_BW", xhci_ss_bw_show, }, + {"HS_BW", xhci_hs_bw_show, }, + {"FS_BW", xhci_fs_bw_show, }, +}; + +static int bw_context_open(struct inode *inode, struct file *file) +{ + int i; + struct xhci_file_map *f_map; + const char *file_name = file_dentry(file)->d_iname; + + for (i = 0; i < ARRAY_SIZE(bw_context_files); i++) { + f_map = &bw_context_files[i]; + + if (strcmp(f_map->name, file_name) == 0) + break; + } + + return single_open(file, f_map->show, inode->i_private); +} + +static const struct file_operations bw_fops = { + .open = bw_context_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void xhci_debugfs_create_bandwidth(struct xhci_hcd *xhci, + struct dentry *parent) +{ + parent = debugfs_create_dir("port_bandwidth", parent); + + xhci_debugfs_create_files(xhci, bw_context_files, + ARRAY_SIZE(bw_context_files), + xhci, + parent, &bw_fops); +} + void xhci_debugfs_init(struct xhci_hcd *xhci) { struct device *dev = xhci_to_hcd(xhci)->self.controller; @@ -700,6 +787,8 @@ void xhci_debugfs_init(struct xhci_hcd *xhci) xhci->debugfs_slots = debugfs_create_dir("devices", xhci->debugfs_root); xhci_debugfs_create_ports(xhci, xhci->debugfs_root); + + xhci_debugfs_create_bandwidth(xhci, xhci->debugfs_root); } void xhci_debugfs_exit(struct xhci_hcd *xhci) |