diff options
author | Fabio Estevam <festevam@gmail.com> | 2020-11-10 00:08:13 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-13 17:22:46 +0300 |
commit | e625f3dede4a2df6df914b4a0fb3e49379676dfc (patch) | |
tree | f07d157d3e4d3675745af544000317eae277db28 /drivers/usb/host/imx21-dbg.c | |
parent | 6a6516c024bb90058f835364b28ee8e1fee8037d (diff) | |
download | linux-e625f3dede4a2df6df914b4a0fb3e49379676dfc.tar.xz |
usb: host: imx21-hcd: Remove the driver
Since commit 4b563a066611 ("ARM: imx: Remove imx21 support") the imx21
SoC is no longer supported.
Get rid of its USB driver too, which is now unused.
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20201109210813.21382-1-festevam@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/imx21-dbg.c')
-rw-r--r-- | drivers/usb/host/imx21-dbg.c | 439 |
1 files changed, 0 insertions, 439 deletions
diff --git a/drivers/usb/host/imx21-dbg.c b/drivers/usb/host/imx21-dbg.c deleted file mode 100644 index 02a1344fbd6a..000000000000 --- a/drivers/usb/host/imx21-dbg.c +++ /dev/null @@ -1,439 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright (c) 2009 by Martin Fuzzey - */ - -/* this file is part of imx21-hcd.c */ - -#ifdef CONFIG_DYNAMIC_DEBUG -#define DEBUG -#endif - -#ifndef DEBUG - -static inline void create_debug_files(struct imx21 *imx21) { } -static inline void remove_debug_files(struct imx21 *imx21) { } -static inline void debug_urb_submitted(struct imx21 *imx21, struct urb *urb) {} -static inline void debug_urb_completed(struct imx21 *imx21, struct urb *urb, - int status) {} -static inline void debug_urb_unlinked(struct imx21 *imx21, struct urb *urb) {} -static inline void debug_urb_queued_for_etd(struct imx21 *imx21, - struct urb *urb) {} -static inline void debug_urb_queued_for_dmem(struct imx21 *imx21, - struct urb *urb) {} -static inline void debug_etd_allocated(struct imx21 *imx21) {} -static inline void debug_etd_freed(struct imx21 *imx21) {} -static inline void debug_dmem_allocated(struct imx21 *imx21, int size) {} -static inline void debug_dmem_freed(struct imx21 *imx21, int size) {} -static inline void debug_isoc_submitted(struct imx21 *imx21, - int frame, struct td *td) {} -static inline void debug_isoc_completed(struct imx21 *imx21, - int frame, struct td *td, int cc, int len) {} - -#else - -#include <linux/debugfs.h> -#include <linux/seq_file.h> - -static const char *dir_labels[] = { - "TD 0", - "OUT", - "IN", - "TD 1" -}; - -static const char *speed_labels[] = { - "Full", - "Low" -}; - -static const char *format_labels[] = { - "Control", - "ISO", - "Bulk", - "Interrupt" -}; - -static inline struct debug_stats *stats_for_urb(struct imx21 *imx21, - struct urb *urb) -{ - return usb_pipeisoc(urb->pipe) ? - &imx21->isoc_stats : &imx21->nonisoc_stats; -} - -static void debug_urb_submitted(struct imx21 *imx21, struct urb *urb) -{ - stats_for_urb(imx21, urb)->submitted++; -} - -static void debug_urb_completed(struct imx21 *imx21, struct urb *urb, int st) -{ - if (st) - stats_for_urb(imx21, urb)->completed_failed++; - else - stats_for_urb(imx21, urb)->completed_ok++; -} - -static void debug_urb_unlinked(struct imx21 *imx21, struct urb *urb) -{ - stats_for_urb(imx21, urb)->unlinked++; -} - -static void debug_urb_queued_for_etd(struct imx21 *imx21, struct urb *urb) -{ - stats_for_urb(imx21, urb)->queue_etd++; -} - -static void debug_urb_queued_for_dmem(struct imx21 *imx21, struct urb *urb) -{ - stats_for_urb(imx21, urb)->queue_dmem++; -} - -static inline void debug_etd_allocated(struct imx21 *imx21) -{ - imx21->etd_usage.maximum = max( - ++(imx21->etd_usage.value), - imx21->etd_usage.maximum); -} - -static inline void debug_etd_freed(struct imx21 *imx21) -{ - imx21->etd_usage.value--; -} - -static inline void debug_dmem_allocated(struct imx21 *imx21, int size) -{ - imx21->dmem_usage.value += size; - imx21->dmem_usage.maximum = max( - imx21->dmem_usage.value, - imx21->dmem_usage.maximum); -} - -static inline void debug_dmem_freed(struct imx21 *imx21, int size) -{ - imx21->dmem_usage.value -= size; -} - - -static void debug_isoc_submitted(struct imx21 *imx21, - int frame, struct td *td) -{ - struct debug_isoc_trace *trace = &imx21->isoc_trace[ - imx21->isoc_trace_index++]; - - imx21->isoc_trace_index %= ARRAY_SIZE(imx21->isoc_trace); - trace->schedule_frame = td->frame; - trace->submit_frame = frame; - trace->request_len = td->len; - trace->td = td; -} - -static inline void debug_isoc_completed(struct imx21 *imx21, - int frame, struct td *td, int cc, int len) -{ - struct debug_isoc_trace *trace, *trace_failed; - int i; - int found = 0; - - trace = imx21->isoc_trace; - for (i = 0; i < ARRAY_SIZE(imx21->isoc_trace); i++, trace++) { - if (trace->td == td) { - trace->done_frame = frame; - trace->done_len = len; - trace->cc = cc; - trace->td = NULL; - found = 1; - break; - } - } - - if (found && cc) { - trace_failed = &imx21->isoc_trace_failed[ - imx21->isoc_trace_index_failed++]; - - imx21->isoc_trace_index_failed %= ARRAY_SIZE( - imx21->isoc_trace_failed); - *trace_failed = *trace; - } -} - - -static char *format_ep(struct usb_host_endpoint *ep, char *buf, int bufsize) -{ - if (ep) - snprintf(buf, bufsize, "ep_%02x (type:%02X kaddr:%p)", - ep->desc.bEndpointAddress, - usb_endpoint_type(&ep->desc), - ep); - else - snprintf(buf, bufsize, "none"); - return buf; -} - -static char *format_etd_dword0(u32 value, char *buf, int bufsize) -{ - snprintf(buf, bufsize, - "addr=%d ep=%d dir=%s speed=%s format=%s halted=%d", - value & 0x7F, - (value >> DW0_ENDPNT) & 0x0F, - dir_labels[(value >> DW0_DIRECT) & 0x03], - speed_labels[(value >> DW0_SPEED) & 0x01], - format_labels[(value >> DW0_FORMAT) & 0x03], - (value >> DW0_HALTED) & 0x01); - return buf; -} - -static int debug_status_show(struct seq_file *s, void *v) -{ - struct imx21 *imx21 = s->private; - int etds_allocated = 0; - int etds_sw_busy = 0; - int etds_hw_busy = 0; - int dmem_blocks = 0; - int queued_for_etd = 0; - int queued_for_dmem = 0; - unsigned int dmem_bytes = 0; - int i; - struct etd_priv *etd; - u32 etd_enable_mask; - unsigned long flags; - struct imx21_dmem_area *dmem; - struct ep_priv *ep_priv; - - spin_lock_irqsave(&imx21->lock, flags); - - etd_enable_mask = readl(imx21->regs + USBH_ETDENSET); - for (i = 0, etd = imx21->etd; i < USB_NUM_ETD; i++, etd++) { - if (etd->alloc) - etds_allocated++; - if (etd->urb) - etds_sw_busy++; - if (etd_enable_mask & (1<<i)) - etds_hw_busy++; - } - - list_for_each_entry(dmem, &imx21->dmem_list, list) { - dmem_bytes += dmem->size; - dmem_blocks++; - } - - list_for_each_entry(ep_priv, &imx21->queue_for_etd, queue) - queued_for_etd++; - - list_for_each_entry(etd, &imx21->queue_for_dmem, queue) - queued_for_dmem++; - - spin_unlock_irqrestore(&imx21->lock, flags); - - seq_printf(s, - "Frame: %d\n" - "ETDs allocated: %d/%d (max=%d)\n" - "ETDs in use sw: %d\n" - "ETDs in use hw: %d\n" - "DMEM allocated: %d/%d (max=%d)\n" - "DMEM blocks: %d\n" - "Queued waiting for ETD: %d\n" - "Queued waiting for DMEM: %d\n", - readl(imx21->regs + USBH_FRMNUB) & 0xFFFF, - etds_allocated, USB_NUM_ETD, imx21->etd_usage.maximum, - etds_sw_busy, - etds_hw_busy, - dmem_bytes, DMEM_SIZE, imx21->dmem_usage.maximum, - dmem_blocks, - queued_for_etd, - queued_for_dmem); - - return 0; -} -DEFINE_SHOW_ATTRIBUTE(debug_status); - -static int debug_dmem_show(struct seq_file *s, void *v) -{ - struct imx21 *imx21 = s->private; - struct imx21_dmem_area *dmem; - unsigned long flags; - char ep_text[40]; - - spin_lock_irqsave(&imx21->lock, flags); - - list_for_each_entry(dmem, &imx21->dmem_list, list) - seq_printf(s, - "%04X: size=0x%X " - "ep=%s\n", - dmem->offset, dmem->size, - format_ep(dmem->ep, ep_text, sizeof(ep_text))); - - spin_unlock_irqrestore(&imx21->lock, flags); - - return 0; -} -DEFINE_SHOW_ATTRIBUTE(debug_dmem); - -static int debug_etd_show(struct seq_file *s, void *v) -{ - struct imx21 *imx21 = s->private; - struct etd_priv *etd; - char buf[60]; - u32 dword; - int i, j; - unsigned long flags; - - spin_lock_irqsave(&imx21->lock, flags); - - for (i = 0, etd = imx21->etd; i < USB_NUM_ETD; i++, etd++) { - int state = -1; - struct urb_priv *urb_priv; - if (etd->urb) { - urb_priv = etd->urb->hcpriv; - if (urb_priv) - state = urb_priv->state; - } - - seq_printf(s, - "etd_num: %d\n" - "ep: %s\n" - "alloc: %d\n" - "len: %d\n" - "busy sw: %d\n" - "busy hw: %d\n" - "urb state: %d\n" - "current urb: %p\n", - - i, - format_ep(etd->ep, buf, sizeof(buf)), - etd->alloc, - etd->len, - etd->urb != NULL, - (readl(imx21->regs + USBH_ETDENSET) & (1 << i)) > 0, - state, - etd->urb); - - for (j = 0; j < 4; j++) { - dword = etd_readl(imx21, i, j); - switch (j) { - case 0: - format_etd_dword0(dword, buf, sizeof(buf)); - break; - case 2: - snprintf(buf, sizeof(buf), - "cc=0X%02X", dword >> DW2_COMPCODE); - break; - default: - *buf = 0; - break; - } - seq_printf(s, - "dword %d: submitted=%08X cur=%08X [%s]\n", - j, - etd->submitted_dwords[j], - dword, - buf); - } - seq_printf(s, "\n"); - } - - spin_unlock_irqrestore(&imx21->lock, flags); - - return 0; -} -DEFINE_SHOW_ATTRIBUTE(debug_etd); - -static void debug_statistics_show_one(struct seq_file *s, - const char *name, struct debug_stats *stats) -{ - seq_printf(s, "%s:\n" - "submitted URBs: %lu\n" - "completed OK: %lu\n" - "completed failed: %lu\n" - "unlinked: %lu\n" - "queued for ETD: %lu\n" - "queued for DMEM: %lu\n\n", - name, - stats->submitted, - stats->completed_ok, - stats->completed_failed, - stats->unlinked, - stats->queue_etd, - stats->queue_dmem); -} - -static int debug_statistics_show(struct seq_file *s, void *v) -{ - struct imx21 *imx21 = s->private; - unsigned long flags; - - spin_lock_irqsave(&imx21->lock, flags); - - debug_statistics_show_one(s, "nonisoc", &imx21->nonisoc_stats); - debug_statistics_show_one(s, "isoc", &imx21->isoc_stats); - seq_printf(s, "unblock kludge triggers: %lu\n", imx21->debug_unblocks); - spin_unlock_irqrestore(&imx21->lock, flags); - - return 0; -} -DEFINE_SHOW_ATTRIBUTE(debug_statistics); - -static void debug_isoc_show_one(struct seq_file *s, - const char *name, int index, struct debug_isoc_trace *trace) -{ - seq_printf(s, "%s %d:\n" - "cc=0X%02X\n" - "scheduled frame %d (%d)\n" - "submitted frame %d (%d)\n" - "completed frame %d (%d)\n" - "requested length=%d\n" - "completed length=%d\n\n", - name, index, - trace->cc, - trace->schedule_frame, trace->schedule_frame & 0xFFFF, - trace->submit_frame, trace->submit_frame & 0xFFFF, - trace->done_frame, trace->done_frame & 0xFFFF, - trace->request_len, - trace->done_len); -} - -static int debug_isoc_show(struct seq_file *s, void *v) -{ - struct imx21 *imx21 = s->private; - struct debug_isoc_trace *trace; - unsigned long flags; - int i; - - spin_lock_irqsave(&imx21->lock, flags); - - trace = imx21->isoc_trace_failed; - for (i = 0; i < ARRAY_SIZE(imx21->isoc_trace_failed); i++, trace++) - debug_isoc_show_one(s, "isoc failed", i, trace); - - trace = imx21->isoc_trace; - for (i = 0; i < ARRAY_SIZE(imx21->isoc_trace); i++, trace++) - debug_isoc_show_one(s, "isoc", i, trace); - - spin_unlock_irqrestore(&imx21->lock, flags); - - return 0; -} -DEFINE_SHOW_ATTRIBUTE(debug_isoc); - -static void create_debug_files(struct imx21 *imx21) -{ - struct dentry *root; - - root = debugfs_create_dir(dev_name(imx21->dev), usb_debug_root); - imx21->debug_root = root; - - debugfs_create_file("status", S_IRUGO, root, imx21, &debug_status_fops); - debugfs_create_file("dmem", S_IRUGO, root, imx21, &debug_dmem_fops); - debugfs_create_file("etd", S_IRUGO, root, imx21, &debug_etd_fops); - debugfs_create_file("statistics", S_IRUGO, root, imx21, - &debug_statistics_fops); - debugfs_create_file("isoc", S_IRUGO, root, imx21, &debug_isoc_fops); -} - -static void remove_debug_files(struct imx21 *imx21) -{ - debugfs_remove_recursive(imx21->debug_root); -} - -#endif - |