mirror of https://github.com/hak5/openwrt-owl.git
Gabor Juhos
parent
60898bc0c5
commit
5a1a5dcf58
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@ -33,8 +33,6 @@ static inline char *ed_statestring(int state)
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return "UNLINK";
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case ED_OPER:
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return "OPER";
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case ED_NEW:
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return "NEW";
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}
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return "?STATE";
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}
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@ -70,6 +68,8 @@ static inline char *td_togglestring(u32 info)
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return "?TOGGLE";
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}
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/*-------------------------------------------------------------------------*/
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#ifdef DEBUG
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/* debug| print the main components of an URB
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@ -81,7 +81,7 @@ urb_print(struct admhcd *ahcd, struct urb * urb, char * str, int small)
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unsigned int pipe = urb->pipe;
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if (!urb->dev || !urb->dev->bus) {
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admhc_dbg(ahcd, "%s URB: no dev", str);
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admhc_dbg("%s URB: no dev", str);
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return;
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}
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@ -89,7 +89,7 @@ urb_print(struct admhcd *ahcd, struct urb * urb, char * str, int small)
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if (urb->status != 0)
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#endif
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admhc_dbg(ahcd, "URB-%s %p dev=%d ep=%d%s-%s flags=%x len=%d/%d "
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"stat=%d\n",
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"stat=%d",
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str,
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urb,
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usb_pipedevice (pipe),
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@ -106,20 +106,20 @@ urb_print(struct admhcd *ahcd, struct urb * urb, char * str, int small)
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int i, len;
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if (usb_pipecontrol(pipe)) {
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admhc_dbg(admhc, "setup(8): ");
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admhc_dbg(ahcd, "setup(8):");
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for (i = 0; i < 8 ; i++)
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printk (" %02x", ((__u8 *) urb->setup_packet) [i]);
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printk ("\n");
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}
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if (urb->transfer_buffer_length > 0 && urb->transfer_buffer) {
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admhc_dbg(admhc, "data(%d/%d): ",
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printk(KERN_DEBUG __FILE__ ": data(%d/%d):",
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urb->actual_length,
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urb->transfer_buffer_length);
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len = usb_pipeout(pipe)?
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urb->transfer_buffer_length: urb->actual_length;
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for (i = 0; i < 16 && i < len; i++)
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printk (" %02x", ((__u8 *) urb->transfer_buffer) [i]);
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printk ("%s stat:%d\n", i < len? "...": "", urb->status);
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admhc_dbg("%s stat:%d\n", i < len? "...": "", urb->status);
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}
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}
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#endif /* ADMHC_VERBOSE_DEBUG */
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@ -318,18 +318,6 @@ static void admhc_dump_td(const struct admhcd *ahcd, const char *label,
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(tmp & TD_IE) ? " IE" : "");
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}
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static void admhc_dump_up(const struct admhcd *ahcd, const char *label,
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const struct urb_priv *up)
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{
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int i;
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admhc_dbg(ahcd, "%s urb/%p:\n", label, up->urb);
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for (i = 0; i < up->td_cnt; i++) {
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struct td *td = up->td[i];
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admhc_dump_td(ahcd, " ->", td);
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}
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}
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/* caller MUST own hcd spinlock if verbose is set! */
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static void __attribute__((unused))
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admhc_dump_ed(const struct admhcd *ahcd, const char *label,
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@ -352,22 +340,23 @@ admhc_dump_ed(const struct admhcd *ahcd, const char *label,
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ED_FA_GET(tmp));
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tmp = hc32_to_cpup(ahcd, &ed->hwHeadP);
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admhc_dbg(ahcd, " tds: head %08x tail %08x %s%s\n",
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admhc_dbg(ahcd, " tds: head %08x tail %08x %s%s%s\n",
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tmp & TD_MASK,
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hc32_to_cpup (ahcd, &ed->hwTailP),
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(tmp & ED_C) ? data1 : data0,
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(tmp & ED_H) ? " HALT" : "");
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(tmp & ED_H) ? " HALT" : "",
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verbose ? " td list follows" : " (not listing)");
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if (ed->urb_active)
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admhc_dump_up(ahcd, " active ", ed->urb_active);
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if (verbose) {
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struct list_head *tmp;
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if ((verbose) && (!list_empty(&ed->urb_pending))) {
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struct list_head *entry;
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/* dump pending URBs */
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list_for_each(entry, &ed->urb_pending) {
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struct urb_priv *up;
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up = list_entry(entry, struct urb_priv, pending);
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admhc_dump_up(ahcd, " pending ", up);
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/* use ed->td_list because HC concurrently modifies
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* hwNextTD as it accumulates ed_donelist.
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*/
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list_for_each(tmp, &ed->td_list) {
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struct td *td;
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td = list_entry(tmp, struct td, td_list);
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admhc_dump_td (ahcd, " ->", td);
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}
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}
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}
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@ -375,8 +364,6 @@ admhc_dump_ed(const struct admhcd *ahcd, const char *label,
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#else /* ifdef DEBUG */
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static inline void urb_print(struct urb * urb, char * str, int small) {}
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static inline void admhc_dump_up(const struct admhcd *ahcd, const char *label,
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const struct urb_priv *up) {}
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static inline void admhc_dump_ed(const struct admhcd *ahcd, const char *label,
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const struct ed *ed, int verbose) {}
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static inline void admhc_dump_td(const struct admhcd *ahcd, const char *label,
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@ -396,44 +383,6 @@ static inline void remove_debug_files(struct admhcd *bus) { }
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#else
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static ssize_t
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show_urb_priv(struct admhcd *ahcd, char *buf, size_t count,
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struct urb_priv *up)
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{
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unsigned temp, size = count;
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int i;
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if (!up)
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return 0;
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temp = scnprintf(buf, size,"\n\turb %p ", up->urb);
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size -= temp;
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buf += temp;
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for (i = 0; i< up->td_cnt; i++) {
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struct td *td;
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u32 dbp, cbl, info;
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td = up->td[i];
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info = hc32_to_cpup(ahcd, &td->hwINFO);
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dbp = hc32_to_cpup(ahcd, &td->hwDBP);
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cbl = hc32_to_cpup(ahcd, &td->hwCBL);
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temp = scnprintf(buf, size,
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"\n\t\ttd %p %s %d %s%scc=%x (%08x,%08x)",
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td,
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td_pidstring(info),
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TD_BL_GET(cbl),
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(info & TD_OWN) ? "WORK " : "DONE ",
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(cbl & TD_IE) ? "IE " : "",
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TD_CC_GET(info), info, cbl);
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size -= temp;
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buf += temp;
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}
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return count - size;
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}
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static ssize_t
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show_list(struct admhcd *ahcd, char *buf, size_t count, struct ed *ed)
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{
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@ -446,10 +395,15 @@ show_list(struct admhcd *ahcd, char *buf, size_t count, struct ed *ed)
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while (ed) {
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u32 info = hc32_to_cpu(ahcd, ed->hwINFO);
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u32 headp = hc32_to_cpu(ahcd, ed->hwHeadP);
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u32 tailp = hc32_to_cpu(ahcd, ed->hwTailP);
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struct list_head *entry;
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struct td *td;
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temp = scnprintf(buf, size,
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"ed/%p %s %cs dev%d ep%d %s%smax %d %08x%s%s %s",
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"ed/%p %s %s %cs dev%d ep%d %s%smax %d %08x%s%s %s"
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" h:%08x t:%08x",
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ed,
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ed_statestring(ed->state),
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ed_typestring (ed->type),
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(info & ED_SPEED_FULL) ? 'f' : 'l',
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info & ED_FA_MASK,
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@ -460,36 +414,29 @@ show_list(struct admhcd *ahcd, char *buf, size_t count, struct ed *ed)
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info,
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(info & ED_SKIP) ? " S" : "",
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(headp & ED_H) ? " H" : "",
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(headp & ED_C) ? "DATA1" : "DATA0");
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(headp & ED_C) ? data1 : data0,
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headp & ED_MASK,tailp);
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size -= temp;
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buf += temp;
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if (ed->urb_active) {
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temp = scnprintf(buf, size, "\nactive urb:");
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list_for_each(entry, &ed->td_list) {
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u32 dbp, cbl;
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td = list_entry(entry, struct td, td_list);
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info = hc32_to_cpup (ahcd, &td->hwINFO);
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dbp = hc32_to_cpup (ahcd, &td->hwDBP);
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cbl = hc32_to_cpup (ahcd, &td->hwCBL);
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temp = scnprintf(buf, size,
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"\n\ttd/%p %s %d %s%scc=%x urb %p (%08x,%08x)",
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td,
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td_pidstring(info),
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TD_BL_GET(cbl),
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(info & TD_OWN) ? "" : "DONE ",
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(cbl & TD_IE) ? "IE " : "",
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TD_CC_GET (info), td->urb, info, cbl);
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size -= temp;
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buf += temp;
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temp = show_urb_priv(ahcd, buf, size, ed->urb_active);
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size -= temp;
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buf += temp;
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}
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if (!list_empty(&ed->urb_pending)) {
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struct list_head *entry;
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temp = scnprintf(buf, size, "\npending urbs:");
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size -= temp;
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buf += temp;
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list_for_each(entry, &ed->urb_pending) {
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struct urb_priv *up;
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up = list_entry(entry, struct urb_priv,
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pending);
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temp = show_urb_priv(ahcd, buf, size, up);
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size -= temp;
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buf += temp;
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}
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}
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temp = scnprintf(buf, size, "\n");
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@ -498,7 +445,6 @@ show_list(struct admhcd *ahcd, char *buf, size_t count, struct ed *ed)
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ed = ed->ed_next;
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}
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return count - size;
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}
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@ -524,6 +470,108 @@ show_async(struct class_device *class_dev, char *buf)
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}
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static CLASS_DEVICE_ATTR(async, S_IRUGO, show_async, NULL);
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#define DBG_SCHED_LIMIT 64
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static ssize_t
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show_periodic(struct class_device *class_dev, char *buf)
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{
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struct usb_bus *bus;
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struct usb_hcd *hcd;
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struct admhcd *ahcd;
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struct ed **seen, *ed;
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unsigned long flags;
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unsigned temp, size, seen_count;
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char *next;
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unsigned i;
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if (!(seen = kmalloc(DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC)))
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return 0;
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seen_count = 0;
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bus = class_get_devdata(class_dev);
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hcd = bus_to_hcd(bus);
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ahcd = hcd_to_admhcd(hcd);
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next = buf;
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size = PAGE_SIZE;
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temp = scnprintf(next, size, "size = %d\n", NUM_INTS);
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size -= temp;
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next += temp;
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/* dump a snapshot of the periodic schedule (and load) */
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spin_lock_irqsave(&ahcd->lock, flags);
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for (i = 0; i < NUM_INTS; i++) {
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if (!(ed = ahcd->periodic [i]))
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continue;
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temp = scnprintf(next, size, "%2d [%3d]:", i, ahcd->load [i]);
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size -= temp;
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next += temp;
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do {
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temp = scnprintf(next, size, " ed%d/%p",
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ed->interval, ed);
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size -= temp;
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next += temp;
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for (temp = 0; temp < seen_count; temp++) {
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if (seen [temp] == ed)
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break;
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}
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/* show more info the first time around */
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if (temp == seen_count) {
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u32 info = hc32_to_cpu (ahcd, ed->hwINFO);
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struct list_head *entry;
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unsigned qlen = 0;
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/* qlen measured here in TDs, not urbs */
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list_for_each (entry, &ed->td_list)
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qlen++;
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temp = scnprintf(next, size,
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" (%cs dev%d ep%d%s qlen %u"
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" max %d %08x%s%s)",
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(info & ED_SPEED_FULL) ? 'f' : 'l',
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ED_FA_GET(info),
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ED_EN_GET(info),
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(info & ED_ISO) ? "iso" : "int",
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qlen,
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ED_MPS_GET(info),
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info,
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(info & ED_SKIP) ? " K" : "",
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(ed->hwHeadP &
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cpu_to_hc32(ahcd, ED_H)) ?
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" H" : "");
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size -= temp;
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next += temp;
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if (seen_count < DBG_SCHED_LIMIT)
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seen [seen_count++] = ed;
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ed = ed->ed_next;
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} else {
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/* we've seen it and what's after */
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temp = 0;
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ed = NULL;
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}
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} while (ed);
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temp = scnprintf(next, size, "\n");
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size -= temp;
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next += temp;
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}
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spin_unlock_irqrestore(&ahcd->lock, flags);
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kfree (seen);
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return PAGE_SIZE - size;
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}
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static CLASS_DEVICE_ATTR(periodic, S_IRUGO, show_periodic, NULL);
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#undef DBG_SCHED_LIMIT
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static ssize_t
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show_registers(struct class_device *class_dev, char *buf)
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{
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@ -610,6 +658,7 @@ static inline void create_debug_files (struct admhcd *ahcd)
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int retval;
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retval = class_device_create_file(cldev, &class_device_attr_async);
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retval = class_device_create_file(cldev, &class_device_attr_periodic);
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retval = class_device_create_file(cldev, &class_device_attr_registers);
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admhc_dbg(ahcd, "created debug files\n");
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}
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@ -619,6 +668,7 @@ static inline void remove_debug_files (struct admhcd *ahcd)
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struct class_device *cldev = admhcd_to_hcd(ahcd)->self.class_dev;
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class_device_remove_file(cldev, &class_device_attr_async);
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class_device_remove_file(cldev, &class_device_attr_periodic);
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class_device_remove_file(cldev, &class_device_attr_registers);
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}
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@ -202,6 +202,7 @@ static int usb_hcd_adm5120_remove(struct platform_device *pdev)
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}
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#ifdef CONFIG_PM
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/* TODO */
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static int usb_hcd_adm5120_suspend(struct platform_device *dev)
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{
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struct usb_hcd *hcd = platform_get_drvdata(dev);
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@ -45,7 +45,7 @@
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#include "../core/hcd.h"
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#include "../core/hub.h"
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#define DRIVER_VERSION "v0.06"
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#define DRIVER_VERSION "v0.10"
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#define DRIVER_AUTHOR "Gabor Juhos <juhosg at openwrt.org>"
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#define DRIVER_DESC "ADMtek USB 1.1 Host Controller Driver"
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@ -58,8 +58,7 @@
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#define ADMHC_INTR_INIT \
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( ADMHC_INTR_MIE | ADMHC_INTR_INSM | ADMHC_INTR_FATI \
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| ADMHC_INTR_RESI | ADMHC_INTR_TDC | ADMHC_INTR_BABI \
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| ADMHC_INTR_7 | ADMHC_INTR_6 )
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| ADMHC_INTR_RESI | ADMHC_INTR_TDC | ADMHC_INTR_BABI )
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/*-------------------------------------------------------------------------*/
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@ -115,12 +114,10 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep,
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/* 1 TD for setup, 1 for ACK, plus ... */
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td_cnt = 2;
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if (urb->transfer_buffer_length)
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td_cnt++;
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break;
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/* FALLTHROUGH */
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case PIPE_BULK:
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/* one TD for every 4096 Bytes (can be upto 8K) */
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td_cnt = urb->transfer_buffer_length / TD_DATALEN_MAX;
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td_cnt += urb->transfer_buffer_length / TD_DATALEN_MAX;
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/* ... and for any remaining bytes ... */
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if ((urb->transfer_buffer_length % TD_DATALEN_MAX) != 0)
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td_cnt++;
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@ -156,7 +153,6 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep,
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return -ENOMEM;
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urb_priv->ed = ed;
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urb_priv->urb = urb;
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spin_lock_irqsave(&ahcd->lock, flags);
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/* don't submit to a dead HC */
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@ -179,8 +175,13 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep,
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goto fail;
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}
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/* schedule the ed if needed */
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if (ed->state == ED_IDLE) {
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ret = ed_schedule(ahcd, ed);
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if (ret < 0)
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goto fail0;
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||||
|
||||
if (ed->type == PIPE_ISOCHRONOUS) {
|
||||
if (ed->state == ED_NEW) {
|
||||
u16 frame = admhc_frame_no(ahcd);
|
||||
|
||||
/* delay a few frames before the first TD */
|
||||
|
|
@ -192,25 +193,25 @@ static int admhc_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep,
|
|||
/* yes, only URB_ISO_ASAP is supported, and
|
||||
* urb->start_frame is never used as input.
|
||||
*/
|
||||
} else
|
||||
urb->start_frame = ed->last_iso + ed->interval;
|
||||
}
|
||||
} else if (ed->type == PIPE_ISOCHRONOUS)
|
||||
urb->start_frame = ed->last_iso + ed->interval;
|
||||
|
||||
/* fill the TDs and link them to the ed; and
|
||||
* enable that part of the schedule, if needed
|
||||
* and update count of queued periodic urbs
|
||||
*/
|
||||
urb->hcpriv = urb_priv;
|
||||
td_submit_urb(ahcd, urb_priv->urb);
|
||||
|
||||
/* append it to the ED's queue */
|
||||
list_add_tail(&urb_priv->pending, &ed->urb_pending);
|
||||
|
||||
/* schedule the ED */
|
||||
ret = ed_schedule(ahcd, ed);
|
||||
td_submit_urb(ahcd, urb);
|
||||
|
||||
#ifdef ADMHC_VERBOSE_DEBUG
|
||||
admhc_dump_ed(ahcd, "admhc_urb_enqueue", urb_priv->ed, 1);
|
||||
#endif
|
||||
fail0:
|
||||
spin_unlock(&urb->lock);
|
||||
fail:
|
||||
if (ret) {
|
||||
urb_priv = urb->hcpriv;
|
||||
if (ret)
|
||||
urb_priv_free(ahcd, urb_priv);
|
||||
}
|
||||
|
||||
spin_unlock_irqrestore(&ahcd->lock, flags);
|
||||
return ret;
|
||||
|
|
@ -225,43 +226,32 @@ fail:
|
|||
static int admhc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
|
||||
{
|
||||
struct admhcd *ahcd = hcd_to_admhcd(hcd);
|
||||
struct urb_priv *up;
|
||||
unsigned long flags;
|
||||
|
||||
up = urb->hcpriv;
|
||||
if (!up)
|
||||
return 0;
|
||||
|
||||
spin_lock_irqsave(&ahcd->lock, flags);
|
||||
|
||||
#ifdef ADMHC_VERBOSE_DEBUG
|
||||
urb_print(ahcd, urb, "DEQEUE", 1);
|
||||
urb_print(ahcd, urb, "DEQUEUE", 1);
|
||||
#endif
|
||||
|
||||
spin_lock_irqsave(&ahcd->lock, flags);
|
||||
if (HC_IS_RUNNING(hcd->state)) {
|
||||
struct urb_priv *urb_priv;
|
||||
|
||||
/* Unless an IRQ completed the unlink while it was being
|
||||
* handed to us, flag it for unlink and giveback, and force
|
||||
* some upcoming INTR_SF to call finish_unlinks()
|
||||
*/
|
||||
if (up->ed->urb_active != up) {
|
||||
list_del(&up->pending);
|
||||
finish_urb(ahcd, urb);
|
||||
} else {
|
||||
ed_start_deschedule(ahcd, up->ed);
|
||||
urb_priv = urb->hcpriv;
|
||||
if (urb_priv) {
|
||||
if (urb_priv->ed->state == ED_OPER)
|
||||
start_ed_unlink(ahcd, urb_priv->ed);
|
||||
}
|
||||
} else {
|
||||
/*
|
||||
* with HC dead, we won't respect hc queue pointers
|
||||
* any more ... just clean up every urb's memory.
|
||||
*/
|
||||
if (up->ed->urb_active != up) {
|
||||
list_del(&up->pending);
|
||||
if (urb->hcpriv)
|
||||
finish_urb(ahcd, urb);
|
||||
} else {
|
||||
finish_urb(ahcd, urb);
|
||||
up->ed->urb_active = NULL;
|
||||
up->ed->state = ED_IDLE;
|
||||
}
|
||||
}
|
||||
spin_unlock_irqrestore(&ahcd->lock, flags);
|
||||
|
||||
|
|
@ -273,6 +263,7 @@ static int admhc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
|
|||
/* frees config/altsetting state for endpoints,
|
||||
* including ED memory, dummy TD, and bulk/intr data toggle
|
||||
*/
|
||||
|
||||
static void admhc_endpoint_disable(struct usb_hcd *hcd,
|
||||
struct usb_host_endpoint *ep)
|
||||
{
|
||||
|
|
@ -298,8 +289,8 @@ rescan:
|
|||
|
||||
if (!HC_IS_RUNNING(hcd->state)) {
|
||||
sanitize:
|
||||
ed->state = ED_UNLINK;
|
||||
admhc_finish_unlinks(ahcd, 0);
|
||||
ed->state = ED_IDLE;
|
||||
finish_unlinks(ahcd, 0);
|
||||
}
|
||||
|
||||
switch (ed->state) {
|
||||
|
|
@ -312,9 +303,8 @@ sanitize:
|
|||
spin_unlock_irqrestore(&ahcd->lock, flags);
|
||||
schedule_timeout_uninterruptible(1);
|
||||
goto rescan;
|
||||
case ED_IDLE:
|
||||
case ED_NEW: /* fully unlinked */
|
||||
if (list_empty(&ed->urb_pending)) {
|
||||
case ED_IDLE: /* fully unlinked */
|
||||
if (list_empty(&ed->td_list)) {
|
||||
td_free (ahcd, ed->dummy);
|
||||
ed_free (ahcd, ed);
|
||||
break;
|
||||
|
|
@ -324,11 +314,10 @@ sanitize:
|
|||
/* caller was supposed to have unlinked any requests;
|
||||
* that's not our job. can't recover; must leak ed.
|
||||
*/
|
||||
admhc_err(ahcd, "leak ed %p (#%02x) %s act %p%s\n",
|
||||
ed, ep->desc.bEndpointAddress,
|
||||
ed_statestring(ed->state),
|
||||
ed->urb_active,
|
||||
list_empty(&ed->urb_pending) ? "" : " (has urbs)");
|
||||
admhc_err(ahcd, "leak ed %p (#%02x) state %d%s\n",
|
||||
ed, ep->desc.bEndpointAddress, ed->state,
|
||||
list_empty(&ed->td_list) ? "" : " (has tds)");
|
||||
td_free(ahcd, ed->dummy);
|
||||
break;
|
||||
}
|
||||
|
||||
|
|
@ -347,9 +336,15 @@ static int admhc_get_frame_number(struct usb_hcd *hcd)
|
|||
|
||||
static void admhc_usb_reset(struct admhcd *ahcd)
|
||||
{
|
||||
admhc_dbg(ahcd, "usb reset\n");
|
||||
#if 0
|
||||
ahcd->hc_control = admhc_readl(ahcd, &ahcd->regs->control);
|
||||
ahcd->hc_control &= OHCI_CTRL_RWC;
|
||||
admhc_writel(ahcd, ahcd->hc_control, &ahcd->regs->control);
|
||||
#else
|
||||
/* FIXME */
|
||||
ahcd->host_control = ADMHC_BUSS_RESET;
|
||||
admhc_writel(ahcd, ahcd->host_control ,&ahcd->regs->host_control);
|
||||
#endif
|
||||
}
|
||||
|
||||
/* admhc_shutdown forcibly disables IRQs and DMA, helping kexec and
|
||||
|
|
@ -361,12 +356,12 @@ admhc_shutdown(struct usb_hcd *hcd)
|
|||
{
|
||||
struct admhcd *ahcd;
|
||||
|
||||
admhc_dbg(ahcd, "shutdown\n");
|
||||
|
||||
ahcd = hcd_to_admhcd(hcd);
|
||||
admhc_intr_disable(ahcd, ADMHC_INTR_MIE);
|
||||
admhc_dma_disable(ahcd);
|
||||
admhc_usb_reset(ahcd);
|
||||
/* flush the writes */
|
||||
admhc_writel_flush(ahcd);
|
||||
}
|
||||
|
||||
/*-------------------------------------------------------------------------*
|
||||
|
|
@ -398,7 +393,7 @@ static void admhc_eds_cleanup(struct admhcd *ahcd)
|
|||
ahcd->ed_head = NULL;
|
||||
}
|
||||
|
||||
#define ED_DUMMY_INFO 0
|
||||
#define ED_DUMMY_INFO (ED_SPEED_FULL | ED_SKIP)
|
||||
|
||||
static int admhc_eds_init(struct admhcd *ahcd)
|
||||
{
|
||||
|
|
@ -514,6 +509,17 @@ static int admhc_run(struct admhcd *ahcd)
|
|||
/* also: power/overcurrent flags in rhdesc */
|
||||
}
|
||||
|
||||
#if 0 /* TODO: not applicable */
|
||||
/* Reset USB nearly "by the book". RemoteWakeupConnected was
|
||||
* saved if boot firmware (BIOS/SMM/...) told us it's connected,
|
||||
* or if bus glue did the same (e.g. for PCI add-in cards with
|
||||
* PCI PM support).
|
||||
*/
|
||||
if ((ahcd->hc_control & OHCI_CTRL_RWC) != 0
|
||||
&& !device_may_wakeup(hcd->self.controller))
|
||||
device_init_wakeup(hcd->self.controller, 1);
|
||||
#endif
|
||||
|
||||
switch (ahcd->host_control & ADMHC_HC_BUSS) {
|
||||
case ADMHC_BUSS_OPER:
|
||||
temp = 0;
|
||||
|
|
@ -531,14 +537,19 @@ static int admhc_run(struct admhcd *ahcd)
|
|||
break;
|
||||
}
|
||||
admhc_writel(ahcd, ahcd->host_control, &ahcd->regs->host_control);
|
||||
msleep(temp);
|
||||
|
||||
/* flush the writes */
|
||||
admhc_writel_flush(ahcd);
|
||||
|
||||
msleep(temp);
|
||||
temp = admhc_read_rhdesc(ahcd);
|
||||
if (!(temp & ADMHC_RH_NPS)) {
|
||||
/* power down each port */
|
||||
for (temp = 0; temp < ahcd->num_ports; temp++)
|
||||
admhc_write_portstatus(ahcd, temp, ADMHC_PS_CPP);
|
||||
}
|
||||
/* flush those writes */
|
||||
admhc_writel_flush(ahcd);
|
||||
|
||||
/* 2msec timelimit here means no irqs/preempt */
|
||||
spin_lock_irq(&ahcd->lock);
|
||||
|
|
@ -566,10 +577,25 @@ static int admhc_run(struct admhcd *ahcd)
|
|||
hcd->poll_rh = 1;
|
||||
hcd->uses_new_polling = 1;
|
||||
|
||||
#if 0
|
||||
/* wake on ConnectStatusChange, matching external hubs */
|
||||
admhc_writel(ahcd, RH_HS_DRWE, &ahcd->regs->roothub.status);
|
||||
#else
|
||||
/* FIXME roothub_write_status (ahcd, ADMHC_RH_DRWE); */
|
||||
#endif
|
||||
|
||||
/* Choose the interrupts we care about now, others later on demand */
|
||||
admhc_intr_ack(ahcd, ~0);
|
||||
admhc_intr_enable(ahcd, ADMHC_INTR_INIT);
|
||||
|
||||
admhc_writel(ahcd, ADMHC_RH_NPS | ADMHC_RH_LPSC, &ahcd->regs->rhdesc);
|
||||
|
||||
/* flush those writes */
|
||||
admhc_writel_flush(ahcd);
|
||||
|
||||
/* start controller operations */
|
||||
ahcd->host_control = ADMHC_BUSS_OPER;
|
||||
admhc_writel(ahcd, ahcd->host_control, &ahcd->regs->host_control);
|
||||
hcd->state = HC_STATE_RUNNING;
|
||||
|
||||
temp = 20;
|
||||
while ((admhc_readl(ahcd, &ahcd->regs->host_control)
|
||||
|
|
@ -582,24 +608,31 @@ static int admhc_run(struct admhcd *ahcd)
|
|||
mdelay(1);
|
||||
}
|
||||
|
||||
#if 0
|
||||
/* FIXME */
|
||||
/* wake on ConnectStatusChange, matching external hubs */
|
||||
admhc_writel(ahcd, ADMHC_RH_DRWE, &ahcd->regs->rhdesc);
|
||||
#endif
|
||||
|
||||
/* Choose the interrupts we care about now, others later on demand */
|
||||
temp = ADMHC_INTR_INIT;
|
||||
admhc_intr_ack(ahcd, ~0);
|
||||
admhc_intr_enable(ahcd, temp);
|
||||
|
||||
admhc_writel(ahcd, ADMHC_RH_NPS | ADMHC_RH_LPSC, &ahcd->regs->rhdesc);
|
||||
hcd->state = HC_STATE_RUNNING;
|
||||
|
||||
ahcd->next_statechange = jiffies + STATECHANGE_DELAY;
|
||||
|
||||
#if 0
|
||||
/* FIXME: enabling DMA is always failed here for an unknown reason */
|
||||
admhc_dma_enable(ahcd);
|
||||
|
||||
temp = 200;
|
||||
while ((admhc_readl(ahcd, &ahcd->regs->host_control)
|
||||
& ADMHC_HC_DMAE) != ADMHC_HC_DMAE) {
|
||||
if (--temp == 0) {
|
||||
spin_unlock_irq(&ahcd->lock);
|
||||
admhc_err(ahcd, "unable to enable DMA!\n");
|
||||
admhc_dump(ahcd, 1);
|
||||
return -1;
|
||||
}
|
||||
mdelay(1);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
spin_unlock_irq(&ahcd->lock);
|
||||
|
||||
mdelay(ADMHC_POTPGT);
|
||||
hcd->state = HC_STATE_RUNNING;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -615,38 +648,25 @@ static irqreturn_t admhc_irq(struct usb_hcd *hcd)
|
|||
u32 ints;
|
||||
|
||||
ints = admhc_readl(ahcd, ®s->int_status);
|
||||
if (!(ints & ADMHC_INTR_INTA)) {
|
||||
if ((ints & ADMHC_INTR_INTA) == 0) {
|
||||
/* no unmasked interrupt status is set */
|
||||
admhc_err(ahcd, "spurious interrupt %08x\n", ints);
|
||||
return IRQ_NONE;
|
||||
}
|
||||
|
||||
ints &= admhc_readl(ahcd, ®s->int_enable);
|
||||
if (!ints) {
|
||||
admhc_err(ahcd, "hardware irq problems?\n");
|
||||
return IRQ_NONE;
|
||||
}
|
||||
|
||||
if (ints & ADMHC_INTR_6) {
|
||||
admhc_err(ahcd, "unknown interrupt 6\n");
|
||||
admhc_dump(ahcd, 0);
|
||||
}
|
||||
|
||||
if (ints & ADMHC_INTR_7) {
|
||||
admhc_err(ahcd, "unknown interrupt 7\n");
|
||||
admhc_dump(ahcd, 0);
|
||||
}
|
||||
|
||||
if (ints & ADMHC_INTR_FATI) {
|
||||
/* e.g. due to PCI Master/Target Abort */
|
||||
admhc_disable(ahcd);
|
||||
admhc_err(ahcd, "Fatal Error, controller disabled\n");
|
||||
admhc_dump(ahcd, 1);
|
||||
admhc_usb_reset(ahcd);
|
||||
}
|
||||
|
||||
if (ints & ADMHC_INTR_BABI) {
|
||||
admhc_disable(ahcd);
|
||||
admhc_intr_disable(ahcd, ADMHC_INTR_BABI);
|
||||
admhc_intr_ack(ahcd, ADMHC_INTR_BABI);
|
||||
admhc_err(ahcd, "Babble Detected\n");
|
||||
admhc_usb_reset(ahcd);
|
||||
}
|
||||
|
||||
if (ints & ADMHC_INTR_INSM) {
|
||||
|
|
@ -682,6 +702,7 @@ static irqreturn_t admhc_irq(struct usb_hcd *hcd)
|
|||
|
||||
if (ints & ADMHC_INTR_TDC) {
|
||||
admhc_vdbg(ahcd, "Transfer Descriptor Complete\n");
|
||||
admhc_intr_ack(ahcd, ADMHC_INTR_TDC);
|
||||
if (HC_IS_RUNNING(hcd->state))
|
||||
admhc_intr_disable(ahcd, ADMHC_INTR_TDC);
|
||||
spin_lock(&ahcd->lock);
|
||||
|
|
@ -693,19 +714,45 @@ static irqreturn_t admhc_irq(struct usb_hcd *hcd)
|
|||
|
||||
if (ints & ADMHC_INTR_SO) {
|
||||
/* could track INTR_SO to reduce available PCI/... bandwidth */
|
||||
admhc_err(ahcd, "Schedule Overrun\n");
|
||||
admhc_vdbg(ahcd, "Schedule Overrun\n");
|
||||
}
|
||||
|
||||
if (ints & ADMHC_INTR_SOFI) {
|
||||
#if 1
|
||||
spin_lock(&ahcd->lock);
|
||||
if (ahcd->ed_rm_list)
|
||||
finish_unlinks(ahcd, admhc_frame_no(ahcd));
|
||||
|
||||
if ((ints & ADMHC_INTR_SOFI) != 0 && !ahcd->ed_rm_list
|
||||
&& HC_IS_RUNNING(hcd->state))
|
||||
admhc_intr_disable(ahcd, ADMHC_INTR_SOFI);
|
||||
spin_unlock(&ahcd->lock);
|
||||
#else
|
||||
if (ints & ADMHC_INTR_SOFI) {
|
||||
admhc_vdbg(ahcd, "Start Of Frame\n");
|
||||
spin_lock(&ahcd->lock);
|
||||
|
||||
/* handle any pending ED removes */
|
||||
admhc_finish_unlinks(ahcd, admhc_frame_no(ahcd));
|
||||
finish_unlinks(ahcd, admhc_frameno(ahcd));
|
||||
|
||||
/* leaving INTR_SOFI enabled when there's still unlinking
|
||||
* to be done in the (next frame).
|
||||
*/
|
||||
if ((ahcd->ed_rm_list == NULL) ||
|
||||
HC_IS_RUNNING(hcd->state) == 0)
|
||||
/*
|
||||
* disable INTR_SOFI if there are no unlinking to be
|
||||
* done (in the next frame)
|
||||
*/
|
||||
admhc_intr_disable(ahcd, ADMHC_INTR_SOFI);
|
||||
|
||||
spin_unlock(&ahcd->lock);
|
||||
}
|
||||
#endif
|
||||
|
||||
if (HC_IS_RUNNING(hcd->state)) {
|
||||
admhc_intr_ack(ahcd, ints);
|
||||
admhc_intr_enable(ahcd, ADMHC_INTR_MIE);
|
||||
admhc_writel_flush(ahcd);
|
||||
}
|
||||
|
||||
return IRQ_HANDLED;
|
||||
|
|
@ -722,7 +769,7 @@ static void admhc_stop(struct usb_hcd *hcd)
|
|||
flush_scheduled_work();
|
||||
|
||||
admhc_usb_reset(ahcd);
|
||||
admhc_intr_disable(ahcd, ~0);
|
||||
admhc_intr_disable(ahcd, ADMHC_INTR_MIE);
|
||||
|
||||
free_irq(hcd->irq, hcd);
|
||||
hcd->irq = -1;
|
||||
|
|
|
|||
|
|
@ -27,6 +27,7 @@ static void admhc_hcd_init(struct admhcd *ahcd)
|
|||
{
|
||||
ahcd->next_statechange = jiffies;
|
||||
spin_lock_init(&ahcd->lock);
|
||||
INIT_LIST_HEAD(&ahcd->pending);
|
||||
}
|
||||
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
|
@ -75,6 +76,19 @@ static void admhc_mem_cleanup(struct admhcd *ahcd)
|
|||
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
||||
/* ahcd "done list" processing needs this mapping */
|
||||
static inline struct td *dma_to_td(struct admhcd *ahcd, dma_addr_t td_dma)
|
||||
{
|
||||
struct td *td;
|
||||
|
||||
td_dma &= TD_MASK;
|
||||
td = ahcd->td_hash[TD_HASH_FUNC(td_dma)];
|
||||
while (td && td->td_dma != td_dma)
|
||||
td = td->td_hash;
|
||||
|
||||
return td;
|
||||
}
|
||||
|
||||
/* TDs ... */
|
||||
static struct td *td_alloc(struct admhcd *ahcd, gfp_t mem_flags)
|
||||
{
|
||||
|
|
@ -87,13 +101,29 @@ static struct td *td_alloc(struct admhcd *ahcd, gfp_t mem_flags)
|
|||
|
||||
/* in case ahcd fetches it, make it look dead */
|
||||
memset(td, 0, sizeof *td);
|
||||
td->hwNextTD = cpu_to_hc32(ahcd, dma);
|
||||
td->td_dma = dma;
|
||||
/* hashed in td_fill */
|
||||
|
||||
return td;
|
||||
}
|
||||
|
||||
static void td_free(struct admhcd *ahcd, struct td *td)
|
||||
{
|
||||
struct td **prev = &ahcd->td_hash[TD_HASH_FUNC(td->td_dma)];
|
||||
|
||||
while (*prev && *prev != td)
|
||||
prev = &(*prev)->td_hash;
|
||||
if (*prev)
|
||||
*prev = td->td_hash;
|
||||
#if 0
|
||||
/* TODO: remove */
|
||||
else if ((td->hwINFO & cpu_to_hc32(ahcd, TD_DONE)) != 0)
|
||||
admhc_dbg (ahcd, "no hash for td %p\n", td);
|
||||
#else
|
||||
else if ((td->flags & TD_FLAG_DONE) != 0)
|
||||
admhc_dbg (ahcd, "no hash for td %p\n", td);
|
||||
#endif
|
||||
dma_pool_free(ahcd->td_cache, td, td->td_dma);
|
||||
}
|
||||
|
||||
|
|
@ -112,7 +142,8 @@ static struct ed *ed_alloc(struct admhcd *ahcd, gfp_t mem_flags)
|
|||
memset(ed, 0, sizeof(*ed));
|
||||
ed->dma = dma;
|
||||
|
||||
INIT_LIST_HEAD(&ed->urb_pending);
|
||||
INIT_LIST_HEAD(&ed->td_list);
|
||||
INIT_LIST_HEAD(&ed->urb_list);
|
||||
|
||||
return ed;
|
||||
}
|
||||
|
|
@ -133,6 +164,7 @@ static void urb_priv_free(struct admhcd *ahcd, struct urb_priv *urb_priv)
|
|||
if (urb_priv->td[i])
|
||||
td_free(ahcd, urb_priv->td[i]);
|
||||
|
||||
list_del(&urb_priv->pending);
|
||||
kfree(urb_priv);
|
||||
}
|
||||
|
||||
|
|
@ -140,23 +172,20 @@ static struct urb_priv *urb_priv_alloc(struct admhcd *ahcd, int num_tds,
|
|||
gfp_t mem_flags)
|
||||
{
|
||||
struct urb_priv *priv;
|
||||
int i;
|
||||
|
||||
/* allocate the private part of the URB */
|
||||
priv = kzalloc(sizeof(*priv) + sizeof(struct td) * num_tds, mem_flags);
|
||||
if (!priv)
|
||||
goto err;
|
||||
|
||||
/* allocate the TDs */
|
||||
for (i = 0; i < num_tds; i++) {
|
||||
priv->td[i] = td_alloc(ahcd, mem_flags);
|
||||
if (priv->td[i] == NULL)
|
||||
/* allocate the TDs (deferring hash chain updates) */
|
||||
for (priv->td_cnt = 0; priv->td_cnt < num_tds; priv->td_cnt++) {
|
||||
priv->td[priv->td_cnt] = td_alloc(ahcd, mem_flags);
|
||||
if (priv->td[priv->td_cnt] == NULL)
|
||||
goto err_free;
|
||||
priv->td[i]->index = i;
|
||||
}
|
||||
|
||||
INIT_LIST_HEAD(&priv->pending);
|
||||
priv->td_cnt = num_tds;
|
||||
|
||||
return priv;
|
||||
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -56,24 +56,21 @@ struct ed {
|
|||
dma_addr_t dma; /* addr of ED */
|
||||
struct td *dummy; /* next TD to activate */
|
||||
|
||||
struct urb_priv *urb_active; /* active URB */
|
||||
struct list_head urb_pending; /* pending URBs */
|
||||
|
||||
struct list_head ed_list; /* list of all EDs*/
|
||||
struct list_head rm_list; /* for remove list */
|
||||
struct list_head urb_list; /* list of our URBs */
|
||||
|
||||
/* host's view of schedule */
|
||||
struct ed *ed_next; /* on schedule list */
|
||||
struct ed *ed_prev; /* for non-interrupt EDs */
|
||||
struct ed *ed_rm_next; /* on rm list */
|
||||
struct list_head td_list; /* "shadow list" of our TDs */
|
||||
|
||||
/* create --> IDLE --> OPER --> ... --> IDLE --> destroy
|
||||
* usually: OPER --> UNLINK --> (IDLE | OPER) --> ...
|
||||
*/
|
||||
u8 state;
|
||||
#define ED_NEW 0x00 /* just allocated */
|
||||
#define ED_IDLE 0x01 /* linked into HC, but not running */
|
||||
#define ED_OPER 0x02 /* linked into HC and running */
|
||||
#define ED_UNLINK 0x03 /* being unlinked from HC */
|
||||
u8 state; /* ED_{IDLE,UNLINK,OPER} */
|
||||
#define ED_IDLE 0x00 /* NOT linked to HC */
|
||||
#define ED_UNLINK 0x01 /* being unlinked from hc */
|
||||
#define ED_OPER 0x02 /* IS linked to hc */
|
||||
|
||||
u8 type; /* PIPE_{BULK,...} */
|
||||
|
||||
|
|
@ -121,10 +118,10 @@ struct td {
|
|||
#define TD_DP_SHIFT 21 /* direction/pid */
|
||||
#define TD_DP_MASK 0x3
|
||||
#define TD_DP (TD_DP_MASK << TD_DP_SHIFT)
|
||||
#define TD_DP_GET (((x) >> TD_DP_SHIFT) & TD_DP_MASK)
|
||||
#define TD_DP_SETUP (0x0 << TD_DP_SHIFT) /* SETUP pid */
|
||||
#define TD_DP_OUT (0x1 << TD_DP_SHIFT) /* OUT pid */
|
||||
#define TD_DP_IN (0x2 << TD_DP_SHIFT) /* IN pid */
|
||||
#define TD_DP_GET(x) (((x) >> TD_DP_SHIFT) & TD_DP_MASK)
|
||||
#define TD_ISI_SHIFT 8 /* Interrupt Service Interval */
|
||||
#define TD_ISI_MASK 0x3f
|
||||
#define TD_ISI_GET(x) (((x) >> TD_ISI_SHIFT) & TD_ISI_MASK)
|
||||
|
|
@ -142,11 +139,19 @@ struct td {
|
|||
|
||||
/* rest are purely for the driver's use */
|
||||
__u8 index;
|
||||
struct ed *ed;
|
||||
struct td *td_hash; /* dma-->td hashtable */
|
||||
struct td *next_dl_td;
|
||||
struct urb *urb;
|
||||
|
||||
dma_addr_t td_dma; /* addr of this TD */
|
||||
dma_addr_t data_dma; /* addr of data it points to */
|
||||
|
||||
struct list_head td_list; /* "shadow list", TDs on same ED */
|
||||
|
||||
u32 flags;
|
||||
#define TD_FLAG_DONE (1 << 17) /* retired to done list */
|
||||
#define TD_FLAG_ISO (1 << 16) /* copy of ED_ISO */
|
||||
} __attribute__ ((aligned(TD_ALIGN))); /* c/b/i need 16; only iso needs 32 */
|
||||
|
||||
/*
|
||||
|
|
@ -348,7 +353,6 @@ struct admhcd_regs {
|
|||
/* hcd-private per-urb state */
|
||||
struct urb_priv {
|
||||
struct ed *ed;
|
||||
struct urb *urb;
|
||||
struct list_head pending; /* URBs on the same ED */
|
||||
|
||||
u32 td_cnt; /* # tds in this request */
|
||||
|
|
@ -379,10 +383,13 @@ struct admhcd {
|
|||
* hcd adds to schedule for a live hc any time, but removals finish
|
||||
* only at the start of the next frame.
|
||||
*/
|
||||
|
||||
struct ed *ed_head;
|
||||
struct ed *ed_tails[4];
|
||||
|
||||
// struct ed *periodic[NUM_INTS]; /* shadow int_table */
|
||||
struct ed *ed_rm_list; /* to be removed */
|
||||
|
||||
struct ed *periodic[NUM_INTS]; /* shadow int_table */
|
||||
|
||||
#if 0 /* TODO: remove? */
|
||||
/*
|
||||
|
|
@ -398,6 +405,7 @@ struct admhcd {
|
|||
struct dma_pool *td_cache;
|
||||
struct dma_pool *ed_cache;
|
||||
struct td *td_hash[TD_HASH_SIZE];
|
||||
struct list_head pending;
|
||||
|
||||
/*
|
||||
* driver state
|
||||
|
|
@ -549,6 +557,15 @@ static inline void admhc_writel(const struct admhcd *ahcd,
|
|||
#endif
|
||||
}
|
||||
|
||||
static inline void admhc_writel_flush(const struct admhcd *ahcd)
|
||||
{
|
||||
#if 0
|
||||
/* TODO: remove? */
|
||||
(void) admhc_readl(ahcd, &ahcd->regs->gencontrol);
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
||||
/* cpu to ahcd */
|
||||
|
|
@ -642,11 +659,20 @@ static inline void admhc_disable(struct admhcd *ahcd)
|
|||
|
||||
static inline void periodic_reinit(struct admhcd *ahcd)
|
||||
{
|
||||
#if 0
|
||||
u32 fi = ahcd->fminterval & ADMHC_SFI_FI_MASK;
|
||||
u32 fit = admhc_readl(ahcd, &ahcd->regs->fminterval) & FIT;
|
||||
|
||||
/* TODO: adjust FSLargestDataPacket value too? */
|
||||
admhc_writel(ahcd, (fit ^ FIT) | ahcd->fminterval,
|
||||
&ahcd->regs->fminterval);
|
||||
#else
|
||||
u32 fit = admhc_readl(ahcd, &ahcd->regs->fminterval) & FIT;
|
||||
|
||||
/* TODO: adjust FSLargestDataPacket value too? */
|
||||
admhc_writel(ahcd, (fit ^ FIT) | ahcd->fminterval,
|
||||
&ahcd->regs->fminterval);
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline u32 admhc_read_rhdesc(struct admhcd *ahcd)
|
||||
|
|
|
|||
Loading…
Reference in New Issue