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-rw-r--r--drivers/usb/usb_ohci.c972
-rw-r--r--drivers/usb/usb_ohci.h35
2 files changed, 556 insertions, 451 deletions
diff --git a/drivers/usb/usb_ohci.c b/drivers/usb/usb_ohci.c
index da11ecb..76c6390 100644
--- a/drivers/usb/usb_ohci.c
+++ b/drivers/usb/usb_ohci.c
@@ -97,7 +97,8 @@
# define writel(a, b) (*((volatile u32 *)(b)) = ((volatile u32)a))
#endif /* CFG_OHCI_SWAP_REG_ACCESS */
-#define min_t(type,x,y) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
+#define min_t(type, x, y) \
+ ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
#ifdef CONFIG_PCI_OHCI
static struct pci_device_id ohci_pci_ids[] = {
@@ -120,13 +121,13 @@ static struct pci_device_id ehci_pci_ids[] = {
#ifdef DEBUG
#define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg)
#else
-#define dbg(format, arg...) do {} while(0)
+#define dbg(format, arg...) do {} while (0)
#endif /* DEBUG */
#define err(format, arg...) printf("ERROR: " format "\n", ## arg)
#ifdef SHOW_INFO
#define info(format, arg...) printf("INFO: " format "\n", ## arg)
#else
-#define info(format, arg...) do {} while(0)
+#define info(format, arg...) do {} while (0)
#endif
#ifdef CFG_OHCI_BE_CONTROLLER
@@ -145,25 +146,24 @@ struct ohci_hcca ghcca[1];
struct ohci_hcca *phcca;
/* this allocates EDs for all possible endpoints */
struct ohci_device ohci_dev;
-/* RHSC flag */
-int got_rhsc;
/* device which was disconnected */
struct usb_device *devgone;
-static inline u32 roothub_a (struct ohci *hc)
- { return readl (&hc->regs->roothub.a); }
-static inline u32 roothub_b (struct ohci *hc)
- { return readl (&hc->regs->roothub.b); }
-static inline u32 roothub_status (struct ohci *hc)
- { return readl (&hc->regs->roothub.status); }
-static inline u32 roothub_portstatus (struct ohci *hc, int i)
- { return readl (&hc->regs->roothub.portstatus[i]); }
+static inline u32 roothub_a(struct ohci *hc)
+ { return readl(&hc->regs->roothub.a); }
+static inline u32 roothub_b(struct ohci *hc)
+ { return readl(&hc->regs->roothub.b); }
+static inline u32 roothub_status(struct ohci *hc)
+ { return readl(&hc->regs->roothub.status); }
+static inline u32 roothub_portstatus(struct ohci *hc, int i)
+ { return readl(&hc->regs->roothub.portstatus[i]); }
/* forward declaration */
-static int hc_interrupt (void);
-static void
-td_submit_job (struct usb_device * dev, unsigned long pipe, void * buffer,
- int transfer_len, struct devrequest * setup, urb_priv_t * urb, int interval);
+static int hc_interrupt(void);
+static void td_submit_job(struct usb_device *dev, unsigned long pipe,
+ void *buffer, int transfer_len,
+ struct devrequest *setup, urb_priv_t *urb,
+ int interval);
/*-------------------------------------------------------------------------*
* URB support functions
@@ -171,11 +171,11 @@ td_submit_job (struct usb_device * dev, unsigned long pipe, void * buffer,
/* free HCD-private data associated with this URB */
-static void urb_free_priv (urb_priv_t * urb)
+static void urb_free_priv(urb_priv_t *urb)
{
int i;
int last;
- struct td * td;
+ struct td *td;
last = urb->length - 1;
if (last >= 0) {
@@ -193,72 +193,74 @@ static void urb_free_priv (urb_priv_t * urb)
/*-------------------------------------------------------------------------*/
#ifdef DEBUG
-static int sohci_get_current_frame_number (struct usb_device * dev);
+static int sohci_get_current_frame_number(struct usb_device *dev);
/* debug| print the main components of an URB
* small: 0) header + data packets 1) just header */
-static void pkt_print (urb_priv_t *purb, struct usb_device * dev,
- unsigned long pipe, void * buffer,
- int transfer_len, struct devrequest * setup, char * str, int small)
+static void pkt_print(urb_priv_t *purb, struct usb_device *dev,
+ unsigned long pipe, void *buffer, int transfer_len,
+ struct devrequest *setup, char *str, int small)
{
- dbg("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,len:%d/%d stat:%#lx",
+ dbg("%s URB:[%4x] dev:%2lu,ep:%2lu-%c,type:%s,len:%d/%d stat:%#lx",
str,
- sohci_get_current_frame_number (dev),
- usb_pipedevice (pipe),
- usb_pipeendpoint (pipe),
- usb_pipeout (pipe)? 'O': 'I',
- usb_pipetype (pipe) < 2? (usb_pipeint (pipe)? "INTR": "ISOC"):
- (usb_pipecontrol (pipe)? "CTRL": "BULK"),
+ sohci_get_current_frame_number(dev),
+ usb_pipedevice(pipe),
+ usb_pipeendpoint(pipe),
+ usb_pipeout(pipe)? 'O': 'I',
+ usb_pipetype(pipe) < 2 ? \
+ (usb_pipeint(pipe)? "INTR": "ISOC"): \
+ (usb_pipecontrol(pipe)? "CTRL": "BULK"),
(purb ? purb->actual_length : 0),
transfer_len, dev->status);
#ifdef OHCI_VERBOSE_DEBUG
if (!small) {
int i, len;
- if (usb_pipecontrol (pipe)) {
- printf (__FILE__ ": cmd(8):");
+ if (usb_pipecontrol(pipe)) {
+ printf(__FILE__ ": cmd(8):");
for (i = 0; i < 8 ; i++)
- printf (" %02x", ((__u8 *) setup) [i]);
- printf ("\n");
+ printf(" %02x", ((__u8 *) setup) [i]);
+ printf("\n");
}
if (transfer_len > 0 && buffer) {
- printf (__FILE__ ": data(%d/%d):",
+ printf(__FILE__ ": data(%d/%d):",
(purb ? purb->actual_length : 0),
transfer_len);
- len = usb_pipeout (pipe)?
- transfer_len:
+ len = usb_pipeout(pipe)? transfer_len:
(purb ? purb->actual_length : 0);
for (i = 0; i < 16 && i < len; i++)
- printf (" %02x", ((__u8 *) buffer) [i]);
- printf ("%s\n", i < len? "...": "");
+ printf(" %02x", ((__u8 *) buffer) [i]);
+ printf("%s\n", i < len? "...": "");
}
}
#endif
}
-/* just for debugging; prints non-empty branches of the int ed tree inclusive iso eds*/
-void ep_print_int_eds (ohci_t *ohci, char * str) {
+/* just for debugging; prints non-empty branches of the int ed tree
+ * inclusive iso eds */
+void ep_print_int_eds(ohci_t *ohci, char *str)
+{
int i, j;
- __u32 * ed_p;
- for (i= 0; i < 32; i++) {
+ __u32 *ed_p;
+ for (i = 0; i < 32; i++) {
j = 5;
ed_p = &(ohci->hcca->int_table [i]);
if (*ed_p == 0)
continue;
- printf (__FILE__ ": %s branch int %2d(%2x):", str, i, i);
+ printf(__FILE__ ": %s branch int %2d(%2x):", str, i, i);
while (*ed_p != 0 && j--) {
ed_t *ed = (ed_t *)m32_swap(ed_p);
- printf (" ed: %4x;", ed->hwINFO);
+ printf(" ed: %4x;", ed->hwINFO);
ed_p = &ed->hwNextED;
}
- printf ("\n");
+ printf("\n");
}
}
-static void ohci_dump_intr_mask (char *label, __u32 mask)
+static void ohci_dump_intr_mask(char *label, __u32 mask)
{
- dbg ("%s: 0x%08x%s%s%s%s%s%s%s%s%s",
+ dbg("%s: 0x%08x%s%s%s%s%s%s%s%s%s",
label,
mask,
(mask & OHCI_INTR_MIE) ? " MIE" : "",
@@ -273,46 +275,46 @@ static void ohci_dump_intr_mask (char *label, __u32 mask)
);
}
-static void maybe_print_eds (char *label, __u32 value)
+static void maybe_print_eds(char *label, __u32 value)
{
ed_t *edp = (ed_t *)value;
if (value) {
- dbg ("%s %08x", label, value);
- dbg ("%08x", edp->hwINFO);
- dbg ("%08x", edp->hwTailP);
- dbg ("%08x", edp->hwHeadP);
- dbg ("%08x", edp->hwNextED);
+ dbg("%s %08x", label, value);
+ dbg("%08x", edp->hwINFO);
+ dbg("%08x", edp->hwTailP);
+ dbg("%08x", edp->hwHeadP);
+ dbg("%08x", edp->hwNextED);
}
}
-static char * hcfs2string (int state)
+static char *hcfs2string(int state)
{
switch (state) {
- case OHCI_USB_RESET: return "reset";
- case OHCI_USB_RESUME: return "resume";
- case OHCI_USB_OPER: return "operational";
- case OHCI_USB_SUSPEND: return "suspend";
+ case OHCI_USB_RESET: return "reset";
+ case OHCI_USB_RESUME: return "resume";
+ case OHCI_USB_OPER: return "operational";
+ case OHCI_USB_SUSPEND: return "suspend";
}
return "?";
}
/* dump control and status registers */
-static void ohci_dump_status (ohci_t *controller)
+static void ohci_dump_status(ohci_t *controller)
{
struct ohci_regs *regs = controller->regs;
__u32 temp;
- temp = readl (&regs->revision) & 0xff;
+ temp = readl(&regs->revision) & 0xff;
if (temp != 0x10)
- dbg ("spec %d.%d", (temp >> 4), (temp & 0x0f));
+ dbg("spec %d.%d", (temp >> 4), (temp & 0x0f));
- temp = readl (&regs->control);
- dbg ("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp,
+ temp = readl(&regs->control);
+ dbg("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp,
(temp & OHCI_CTRL_RWE) ? " RWE" : "",
(temp & OHCI_CTRL_RWC) ? " RWC" : "",
(temp & OHCI_CTRL_IR) ? " IR" : "",
- hcfs2string (temp & OHCI_CTRL_HCFS),
+ hcfs2string(temp & OHCI_CTRL_HCFS),
(temp & OHCI_CTRL_BLE) ? " BLE" : "",
(temp & OHCI_CTRL_CLE) ? " CLE" : "",
(temp & OHCI_CTRL_IE) ? " IE" : "",
@@ -320,8 +322,8 @@ static void ohci_dump_status (ohci_t *controller)
temp & OHCI_CTRL_CBSR
);
- temp = readl (&regs->cmdstatus);
- dbg ("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp,
+ temp = readl(&regs->cmdstatus);
+ dbg("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp,
(temp & OHCI_SOC) >> 16,
(temp & OHCI_OCR) ? " OCR" : "",
(temp & OHCI_BLF) ? " BLF" : "",
@@ -329,31 +331,31 @@ static void ohci_dump_status (ohci_t *controller)
(temp & OHCI_HCR) ? " HCR" : ""
);
- ohci_dump_intr_mask ("intrstatus", readl (&regs->intrstatus));
- ohci_dump_intr_mask ("intrenable", readl (&regs->intrenable));
+ ohci_dump_intr_mask("intrstatus", readl(&regs->intrstatus));
+ ohci_dump_intr_mask("intrenable", readl(&regs->intrenable));
- maybe_print_eds ("ed_periodcurrent", readl (&regs->ed_periodcurrent));
+ maybe_print_eds("ed_periodcurrent", readl(&regs->ed_periodcurrent));
- maybe_print_eds ("ed_controlhead", readl (&regs->ed_controlhead));
- maybe_print_eds ("ed_controlcurrent", readl (&regs->ed_controlcurrent));
+ maybe_print_eds("ed_controlhead", readl(&regs->ed_controlhead));
+ maybe_print_eds("ed_controlcurrent", readl(&regs->ed_controlcurrent));
- maybe_print_eds ("ed_bulkhead", readl (&regs->ed_bulkhead));
- maybe_print_eds ("ed_bulkcurrent", readl (&regs->ed_bulkcurrent));
+ maybe_print_eds("ed_bulkhead", readl(&regs->ed_bulkhead));
+ maybe_print_eds("ed_bulkcurrent", readl(&regs->ed_bulkcurrent));
- maybe_print_eds ("donehead", readl (&regs->donehead));
+ maybe_print_eds("donehead", readl(&regs->donehead));
}
-static void ohci_dump_roothub (ohci_t *controller, int verbose)
+static void ohci_dump_roothub(ohci_t *controller, int verbose)
{
__u32 temp, ndp, i;
- temp = roothub_a (controller);
+ temp = roothub_a(controller);
ndp = (temp & RH_A_NDP);
#ifdef CONFIG_AT91C_PQFP_UHPBUG
ndp = (ndp == 2) ? 1:0;
#endif
if (verbose) {
- dbg ("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp,
+ dbg("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp,
((temp & RH_A_POTPGT) >> 24) & 0xff,
(temp & RH_A_NOCP) ? " NOCP" : "",
(temp & RH_A_OCPM) ? " OCPM" : "",
@@ -362,14 +364,14 @@ static void ohci_dump_roothub (ohci_t *controller, int verbose)
(temp & RH_A_PSM) ? " PSM" : "",
ndp
);
- temp = roothub_b (controller);
- dbg ("roothub.b: %08x PPCM=%04x DR=%04x",
+ temp = roothub_b(controller);
+ dbg("roothub.b: %08x PPCM=%04x DR=%04x",
temp,
(temp & RH_B_PPCM) >> 16,
(temp & RH_B_DR)
);
- temp = roothub_status (controller);
- dbg ("roothub.status: %08x%s%s%s%s%s%s",
+ temp = roothub_status(controller);
+ dbg("roothub.status: %08x%s%s%s%s%s%s",
temp,
(temp & RH_HS_CRWE) ? " CRWE" : "",
(temp & RH_HS_OCIC) ? " OCIC" : "",
@@ -381,8 +383,8 @@ static void ohci_dump_roothub (ohci_t *controller, int verbose)
}
for (i = 0; i < ndp; i++) {
- temp = roothub_portstatus (controller, i);
- dbg ("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s",
+ temp = roothub_portstatus(controller, i);
+ dbg("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s",
i,
temp,
(temp & RH_PS_PRSC) ? " PRSC" : "",
@@ -403,16 +405,16 @@ static void ohci_dump_roothub (ohci_t *controller, int verbose)
}
}
-static void ohci_dump (ohci_t *controller, int verbose)
+static void ohci_dump(ohci_t *controller, int verbose)
{
- dbg ("OHCI controller usb-%s state", controller->slot_name);
+ dbg("OHCI controller usb-%s state", controller->slot_name);
/* dumps some of the state we know about */
- ohci_dump_status (controller);
+ ohci_dump_status(controller);
if (verbose)
- ep_print_int_eds (controller, "hcca");
- dbg ("hcca frame #%04x", controller->hcca->frame_no);
- ohci_dump_roothub (controller, 1);
+ ep_print_int_eds(controller, "hcca");
+ dbg("hcca frame #%04x", controller->hcca->frame_no);
+ ohci_dump_roothub(controller, 1);
}
#endif /* DEBUG */
@@ -425,7 +427,7 @@ static void ohci_dump (ohci_t *controller, int verbose)
int sohci_submit_job(urb_priv_t *urb, struct devrequest *setup)
{
ohci_t *ohci;
- ed_t * ed;
+ ed_t *ed;
urb_priv_t *purb_priv = urb;
int i, size = 0;
struct usb_device *dev = urb->dev;
@@ -443,27 +445,29 @@ int sohci_submit_job(urb_priv_t *urb, struct devrequest *setup)
return -1;
}
- /* we're about to begin a new transaction here so mark the URB unfinished */
+ /* we're about to begin a new transaction here so mark the
+ * URB unfinished */
urb->finished = 0;
/* every endpoint has a ed, locate and fill it */
- if (!(ed = ep_add_ed (dev, pipe, interval, 1))) {
+ ed = ep_add_ed(dev, pipe, interval, 1);
+ if (!ed) {
err("sohci_submit_job: ENOMEM");
return -1;
}
/* for the private part of the URB we need the number of TDs (size) */
- switch (usb_pipetype (pipe)) {
- case PIPE_BULK: /* one TD for every 4096 Byte */
- size = (transfer_len - 1) / 4096 + 1;
- break;
- case PIPE_CONTROL: /* 1 TD for setup, 1 for ACK and 1 for every 4096 B */
- size = (transfer_len == 0)? 2:
- (transfer_len - 1) / 4096 + 3;
- break;
- case PIPE_INTERRUPT: /* 1 TD */
- size = 1;
- break;
+ switch (usb_pipetype(pipe)) {
+ case PIPE_BULK: /* one TD for every 4096 Byte */
+ size = (transfer_len - 1) / 4096 + 1;
+ break;
+ case PIPE_CONTROL:/* 1 TD for setup, 1 for ACK and 1 for every 4096 B */
+ size = (transfer_len == 0)? 2:
+ (transfer_len - 1) / 4096 + 3;
+ break;
+ case PIPE_INTERRUPT: /* 1 TD */
+ size = 1;
+ break;
}
ed->purb = urb;
@@ -482,27 +486,28 @@ int sohci_submit_job(urb_priv_t *urb, struct devrequest *setup)
/* allocate the TDs */
/* note that td[0] was allocated in ep_add_ed */
for (i = 0; i < size; i++) {
- purb_priv->td[i] = td_alloc (dev);
+ purb_priv->td[i] = td_alloc(dev);
if (!purb_priv->td[i]) {
purb_priv->length = i;
- urb_free_priv (purb_priv);
+ urb_free_priv(purb_priv);
err("sohci_submit_job: ENOMEM");
return -1;
}
}
if (ed->state == ED_NEW || (ed->state & ED_DEL)) {
- urb_free_priv (purb_priv);
+ urb_free_priv(purb_priv);
err("sohci_submit_job: EINVAL");
return -1;
}
/* link the ed into a chain if is not already */
if (ed->state != ED_OPER)
- ep_link (ohci, ed);
+ ep_link(ohci, ed);
/* fill the TDs and link it to the ed */
- td_submit_job(dev, pipe, buffer, transfer_len, setup, purb_priv, interval);
+ td_submit_job(dev, pipe, buffer, transfer_len,
+ setup, purb_priv, interval);
return 0;
}
@@ -511,19 +516,19 @@ static inline int sohci_return_job(struct ohci *hc, urb_priv_t *urb)
{
struct ohci_regs *regs = hc->regs;
- switch (usb_pipetype (urb->pipe)) {
+ switch (usb_pipetype(urb->pipe)) {
case PIPE_INTERRUPT:
/* implicitly requeued */
if (urb->dev->irq_handle &&
(urb->dev->irq_act_len = urb->actual_length)) {
- writel (OHCI_INTR_WDH, &regs->intrenable);
- readl (&regs->intrenable); /* PCI posting flush */
+ writel(OHCI_INTR_WDH, &regs->intrenable);
+ readl(&regs->intrenable); /* PCI posting flush */
urb->dev->irq_handle(urb->dev);
- writel (OHCI_INTR_WDH, &regs->intrdisable);
- readl (&regs->intrdisable); /* PCI posting flush */
+ writel(OHCI_INTR_WDH, &regs->intrdisable);
+ readl(&regs->intrdisable); /* PCI posting flush */
}
urb->actual_length = 0;
- td_submit_job (
+ td_submit_job(
urb->dev,
urb->pipe,
urb->transfer_buffer,
@@ -546,11 +551,11 @@ static inline int sohci_return_job(struct ohci *hc, urb_priv_t *urb)
#ifdef DEBUG
/* tell us the current USB frame number */
-static int sohci_get_current_frame_number (struct usb_device *usb_dev)
+static int sohci_get_current_frame_number(struct usb_device *usb_dev)
{
ohci_t *ohci = &gohci;
- return m16_swap (ohci->hcca->frame_no);
+ return m16_swap(ohci->hcca->frame_no);
}
#endif
@@ -563,7 +568,7 @@ static int sohci_get_current_frame_number (struct usb_device *usb_dev)
* returns the branch and
* sets the interval to interval = 2^integer (ld (interval)) */
-static int ep_int_ballance (ohci_t * ohci, int interval, int load)
+static int ep_int_ballance(ohci_t *ohci, int interval, int load)
{
int i, branch = 0;
@@ -585,20 +590,19 @@ static int ep_int_ballance (ohci_t * ohci, int interval, int load)
/* 2^int( ld (inter)) */
-static int ep_2_n_interval (int inter)
+static int ep_2_n_interval(int inter)
{
int i;
- for (i = 0; ((inter >> i) > 1 ) && (i < 5); i++);
+ for (i = 0; ((inter >> i) > 1) && (i < 5); i++);
return 1 << i;
}
/*-------------------------------------------------------------------------*/
/* the int tree is a binary tree
- * in order to process it sequentially the indexes of the branches have to be mapped
- * the mapping reverses the bits of a word of num_bits length */
-
-static int ep_rev (int num_bits, int word)
+ * in order to process it sequentially the indexes of the branches have to
+ * be mapped the mapping reverses the bits of a word of num_bits length */
+static int ep_rev(int num_bits, int word)
{
int i, wout = 0;
@@ -613,7 +617,7 @@ static int ep_rev (int num_bits, int word)
/* link an ed into one of the HC chains */
-static int ep_link (ohci_t *ohci, ed_t *edi)
+static int ep_link(ohci_t *ohci, ed_t *edi)
{
volatile ed_t *ed = edi;
int int_branch;
@@ -621,7 +625,7 @@ static int ep_link (ohci_t *ohci, ed_t *edi)
int inter;
int interval;
int load;
- __u32 * ed_p;
+ __u32 *ed_p;
ed->state = ED_OPER;
ed->int_interval = 0;
@@ -629,49 +633,54 @@ static int ep_link (ohci_t *ohci, ed_t *edi)
switch (ed->type) {
case PIPE_CONTROL:
ed->hwNextED = 0;
- if (ohci->ed_controltail == NULL) {
- writel (ed, &ohci->regs->ed_controlhead);
- } else {
- ohci->ed_controltail->hwNextED = m32_swap ((unsigned long)ed);
- }
+ if (ohci->ed_controltail == NULL)
+ writel(ed, &ohci->regs->ed_controlhead);
+ else
+ ohci->ed_controltail->hwNextED =
+ m32_swap((unsigned long)ed);
+
ed->ed_prev = ohci->ed_controltail;
if (!ohci->ed_controltail && !ohci->ed_rm_list[0] &&
!ohci->ed_rm_list[1] && !ohci->sleeping) {
ohci->hc_control |= OHCI_CTRL_CLE;
- writel (ohci->hc_control, &ohci->regs->control);
+ writel(ohci->hc_control, &ohci->regs->control);
}
ohci->ed_controltail = edi;
break;
case PIPE_BULK:
ed->hwNextED = 0;
- if (ohci->ed_bulktail == NULL) {
- writel (ed, &ohci->regs->ed_bulkhead);
- } else {
- ohci->ed_bulktail->hwNextED = m32_swap ((unsigned long)ed);
- }
+ if (ohci->ed_bulktail == NULL)
+ writel(ed, &ohci->regs->ed_bulkhead);
+ else
+ ohci->ed_bulktail->hwNextED =
+ m32_swap((unsigned long)ed);
+
ed->ed_prev = ohci->ed_bulktail;
if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] &&
!ohci->ed_rm_list[1] && !ohci->sleeping) {
ohci->hc_control |= OHCI_CTRL_BLE;
- writel (ohci->hc_control, &ohci->regs->control);
+ writel(ohci->hc_control, &ohci->regs->control);
}
ohci->ed_bulktail = edi;
break;
case PIPE_INTERRUPT:
load = ed->int_load;
- interval = ep_2_n_interval (ed->int_period);
+ interval = ep_2_n_interval(ed->int_period);
ed->int_interval = interval;
- int_branch = ep_int_ballance (ohci, interval, load);
+ int_branch = ep_int_ballance(ohci, interval, load);
ed->int_branch = int_branch;
- for (i = 0; i < ep_rev (6, interval); i += inter) {
+ for (i = 0; i < ep_rev(6, interval); i += inter) {
inter = 1;
- for (ed_p = &(ohci->hcca->int_table[ep_rev (5, i) + int_branch]);
- (*ed_p != 0) && (((ed_t *)ed_p)->int_interval >= interval);
+ for (ed_p = &(ohci->hcca->int_table[\
+ ep_rev(5, i) + int_branch]);
+ (*ed_p != 0) &&
+ (((ed_t *)ed_p)->int_interval >= interval);
ed_p = &(((ed_t *)ed_p)->hwNextED))
- inter = ep_rev (6, ((ed_t *)ed_p)->int_interval);
+ inter = ep_rev(6,
+ ((ed_t *)ed_p)->int_interval);
ed->hwNextED = *ed_p;
*ed_p = m32_swap((unsigned long)ed);
}
@@ -683,19 +692,21 @@ static int ep_link (ohci_t *ohci, ed_t *edi)
/*-------------------------------------------------------------------------*/
/* scan the periodic table to find and unlink this ED */
-static void periodic_unlink ( struct ohci *ohci, volatile struct ed *ed,
- unsigned index, unsigned period)
+static void periodic_unlink(struct ohci *ohci, volatile struct ed *ed,
+ unsigned index, unsigned period)
{
for (; index < NUM_INTS; index += period) {
__u32 *ed_p = &ohci->hcca->int_table [index];
/* ED might have been unlinked through another path */
while (*ed_p != 0) {
- if (((struct ed *)m32_swap ((unsigned long)ed_p)) == ed) {
+ if (((struct ed *)
+ m32_swap((unsigned long)ed_p)) == ed) {
*ed_p = ed->hwNextED;
break;
}
- ed_p = & (((struct ed *)m32_swap ((unsigned long)ed_p))->hwNextED);
+ ed_p = &(((struct ed *)
+ m32_swap((unsigned long)ed_p))->hwNextED);
}
}
}
@@ -705,28 +716,30 @@ static void periodic_unlink ( struct ohci *ohci, volatile struct ed *ed,
* the link from the ed still points to another operational ed or 0
* so the HC can eventually finish the processing of the unlinked ed */
-static int ep_unlink (ohci_t *ohci, ed_t *edi)
+static int ep_unlink(ohci_t *ohci, ed_t *edi)
{
volatile ed_t *ed = edi;
int i;
- ed->hwINFO |= m32_swap (OHCI_ED_SKIP);
+ ed->hwINFO |= m32_swap(OHCI_ED_SKIP);
switch (ed->type) {
case PIPE_CONTROL:
if (ed->ed_prev == NULL) {
if (!ed->hwNextED) {
ohci->hc_control &= ~OHCI_CTRL_CLE;
- writel (ohci->hc_control, &ohci->regs->control);
+ writel(ohci->hc_control, &ohci->regs->control);
}
- writel (m32_swap (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_controlhead);
+ writel(m32_swap(*((__u32 *)&ed->hwNextED)),
+ &ohci->regs->ed_controlhead);
} else {
ed->ed_prev->hwNextED = ed->hwNextED;
}
if (ohci->ed_controltail == ed) {
ohci->ed_controltail = ed->ed_prev;
} else {
- ((ed_t *)m32_swap (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev;
+ ((ed_t *)m32_swap(
+ *((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev;
}
break;
@@ -734,21 +747,23 @@ static int ep_unlink (ohci_t *ohci, ed_t *edi)
if (ed->ed_prev == NULL) {
if (!ed->hwNextED) {
ohci->hc_control &= ~OHCI_CTRL_BLE;
- writel (ohci->hc_control, &ohci->regs->control);
+ writel(ohci->hc_control, &ohci->regs->control);
}
- writel (m32_swap (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_bulkhead);
+ writel(m32_swap(*((__u32 *)&ed->hwNextED)),
+ &ohci->regs->ed_bulkhead);
} else {
ed->ed_prev->hwNextED = ed->hwNextED;
}
if (ohci->ed_bulktail == ed) {
ohci->ed_bulktail = ed->ed_prev;
} else {
- ((ed_t *)m32_swap (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev;
+ ((ed_t *)m32_swap(
+ *((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev;
}
break;
case PIPE_INTERRUPT:
- periodic_unlink (ohci, ed, 0, 1);
+ periodic_unlink(ohci, ed, 0, 1);
for (i = ed->int_branch; i < 32; i += ed->int_interval)
ohci->ohci_int_load[i] -= ed->int_load;
break;
@@ -767,15 +782,15 @@ static int ep_unlink (ohci_t *ohci, ed_t *edi)
* info fields are setted anyway even though most of them should not
* change
*/
-static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe,
- int interval, int load)
+static ed_t *ep_add_ed(struct usb_device *usb_dev, unsigned long pipe,
+ int interval, int load)
{
td_t *td;
ed_t *ed_ret;
volatile ed_t *ed;
- ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint (pipe) << 1) |
- (usb_pipecontrol (pipe)? 0: usb_pipeout (pipe))];
+ ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint(pipe) << 1) |
+ (usb_pipecontrol(pipe)? 0: usb_pipeout(pipe))];
if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) {
err("ep_add_ed: pending delete");
@@ -784,22 +799,22 @@ static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe,
}
if (ed->state == ED_NEW) {
- ed->hwINFO = m32_swap (OHCI_ED_SKIP); /* skip ed */
/* dummy td; end of td list for ed */
- td = td_alloc (usb_dev);
- ed->hwTailP = m32_swap ((unsigned long)td);
+ td = td_alloc(usb_dev);
+ ed->hwTailP = m32_swap((unsigned long)td);
ed->hwHeadP = ed->hwTailP;
ed->state = ED_UNLINK;
- ed->type = usb_pipetype (pipe);
+ ed->type = usb_pipetype(pipe);
ohci_dev.ed_cnt++;
}
- ed->hwINFO = m32_swap (usb_pipedevice (pipe)
- | usb_pipeendpoint (pipe) << 7
- | (usb_pipeisoc (pipe)? 0x8000: 0)
- | (usb_pipecontrol (pipe)? 0: (usb_pipeout (pipe)? 0x800: 0x1000))
- | usb_pipeslow (pipe) << 13
- | usb_maxpacket (usb_dev, pipe) << 16);
+ ed->hwINFO = m32_swap(usb_pipedevice(pipe)
+ | usb_pipeendpoint(pipe) << 7
+ | (usb_pipeisoc(pipe)? 0x8000: 0)
+ | (usb_pipecontrol(pipe)? 0: \
+ (usb_pipeout(pipe)? 0x800: 0x1000))
+ | usb_pipeslow(pipe) << 13
+ | usb_maxpacket(usb_dev, pipe) << 16);
if (ed->type == PIPE_INTERRUPT && ed->state == ED_UNLINK) {
ed->int_period = interval;
@@ -815,7 +830,7 @@ static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe,
/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */
-static void td_fill (ohci_t *ohci, unsigned int info,
+static void td_fill(ohci_t *ohci, unsigned int info,
void *data, int len,
struct usb_device *dev, int index, urb_priv_t *urb_priv)
{
@@ -833,29 +848,32 @@ static void td_fill (ohci_t *ohci, unsigned int info,
td_pt->hwNextTD = 0;
/* fill the old dummy TD */
- td = urb_priv->td [index] = (td_t *)(m32_swap (urb_priv->ed->hwTailP) & ~0xf);
+ td = urb_priv->td [index] =
+ (td_t *)(m32_swap(urb_priv->ed->hwTailP) & ~0xf);
td->ed = urb_priv->ed;
td->next_dl_td = NULL;
td->index = index;
td->data = (__u32)data;
#ifdef OHCI_FILL_TRACE
- if ((usb_pipetype(urb_priv->pipe) == PIPE_BULK) && usb_pipeout(urb_priv->pipe)) {
+ if ((usb_pipetype(urb_priv->pipe) == PIPE_BULK) &&
+ usb_pipeout(urb_priv->pipe)) {
for (i = 0; i < len; i++)
- printf("td->data[%d] %#2x ",i, ((unsigned char *)td->data)[i]);
+ printf("td->data[%d] %#2x ", i, ((unsigned char *)td->data)[i]);
printf("\n");
}
#endif
if (!len)
data = 0;
- td->hwINFO = m32_swap (info);
- td->hwCBP = m32_swap ((unsigned long)data);
+ td->hwINFO = m32_swap(info);
+ td->hwCBP = m32_swap((unsigned long)data);
if (data)
- td->hwBE = m32_swap ((unsigned long)(data + len - 1));
+ td->hwBE = m32_swap((unsigned long)(data + len - 1));
else
td->hwBE = 0;
- td->hwNextTD = m32_swap ((unsigned long)td_pt);
+
+ td->hwNextTD = m32_swap((unsigned long)td_pt);
/* append to queue */
td->ed->hwTailP = td->hwNextTD;
@@ -865,8 +883,10 @@ static void td_fill (ohci_t *ohci, unsigned int info,
/* prepare all TDs of a transfer */
-static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buffer,
- int transfer_len, struct devrequest *setup, urb_priv_t *urb, int interval)
+static void td_submit_job(struct usb_device *dev, unsigned long pipe,
+ void *buffer, int transfer_len,
+ struct devrequest *setup, urb_priv_t *urb,
+ int interval)
{
ohci_t *ohci = &gohci;
int data_len = transfer_len;
@@ -875,12 +895,14 @@ static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buf
__u32 info = 0;
unsigned int toggle = 0;
- /* OHCI handles the DATA-toggles itself, we just use the USB-toggle bits for reseting */
- if(usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) {
+ /* OHCI handles the DATA-toggles itself, we just use the USB-toggle
+ * bits for reseting */
+ if (usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) {
toggle = TD_T_TOGGLE;
} else {
toggle = TD_T_DATA0;
- usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 1);
+ usb_settoggle(dev, usb_pipeendpoint(pipe),
+ usb_pipeout(pipe), 1);
}
urb->td_cnt = 0;
if (data_len)
@@ -888,44 +910,58 @@ static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buf
else
data = 0;
- switch (usb_pipetype (pipe)) {
+ switch (usb_pipetype(pipe)) {
case PIPE_BULK:
- info = usb_pipeout (pipe)?
+ info = usb_pipeout(pipe)?
TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ;
- while(data_len > 4096) {
- td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, 4096, dev, cnt, urb);
+ while (data_len > 4096) {
+ td_fill(ohci, info | (cnt? TD_T_TOGGLE:toggle),
+ data, 4096, dev, cnt, urb);
data += 4096; data_len -= 4096; cnt++;
}
- info = usb_pipeout (pipe)?
+ info = usb_pipeout(pipe)?
TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ;
- td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, data_len, dev, cnt, urb);
+ td_fill(ohci, info | (cnt? TD_T_TOGGLE:toggle), data,
+ data_len, dev, cnt, urb);
cnt++;
- if (!ohci->sleeping)
- writel (OHCI_BLF, &ohci->regs->cmdstatus); /* start bulk list */
+ if (!ohci->sleeping) {
+ /* start bulk list */
+ writel(OHCI_BLF, &ohci->regs->cmdstatus);
+ }
break;
case PIPE_CONTROL:
+ /* Setup phase */
info = TD_CC | TD_DP_SETUP | TD_T_DATA0;
- td_fill (ohci, info, setup, 8, dev, cnt++, urb);
+ td_fill(ohci, info, setup, 8, dev, cnt++, urb);
+
+ /* Optional Data phase */
if (data_len > 0) {
- info = usb_pipeout (pipe)?
- TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : TD_CC | TD_R | TD_DP_IN | TD_T_DATA1;
+ info = usb_pipeout(pipe)?
+ TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 :
+ TD_CC | TD_R | TD_DP_IN | TD_T_DATA1;
/* NOTE: mishandles transfers >8K, some >4K */
- td_fill (ohci, info, data, data_len, dev, cnt++, urb);
+ td_fill(ohci, info, data, data_len, dev, cnt++, urb);
+ }
+
+ /* Status phase */
+ info = usb_pipeout(pipe)?
+ TD_CC | TD_DP_IN | TD_T_DATA1:
+ TD_CC | TD_DP_OUT | TD_T_DATA1;
+ td_fill(ohci, info, data, 0, dev, cnt++, urb);
+
+ if (!ohci->sleeping) {
+ /* start Control list */
+ writel(OHCI_CLF, &ohci->regs->cmdstatus);
}
- info = usb_pipeout (pipe)?
- TD_CC | TD_DP_IN | TD_T_DATA1: TD_CC | TD_DP_OUT | TD_T_DATA1;
- td_fill (ohci, info, data, 0, dev, cnt++, urb);
- if (!ohci->sleeping)
- writel (OHCI_CLF, &ohci->regs->cmdstatus); /* start Control list */
break;
case PIPE_INTERRUPT:
- info = usb_pipeout (urb->pipe)?
+ info = usb_pipeout(urb->pipe)?
TD_CC | TD_DP_OUT | toggle:
TD_CC | TD_R | TD_DP_IN | toggle;
- td_fill (ohci, info, data, data_len, dev, cnt++, urb);
+ td_fill(ohci, info, data, data_len, dev, cnt++, urb);
break;
}
if (urb->length != cnt)
@@ -938,16 +974,16 @@ static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buf
/* calculate the transfer length and update the urb */
-static void dl_transfer_length(td_t * td)
+static void dl_transfer_length(td_t *td)
{
__u32 tdINFO, tdBE, tdCBP;
urb_priv_t *lurb_priv = td->ed->purb;
- tdINFO = m32_swap (td->hwINFO);
- tdBE = m32_swap (td->hwBE);
- tdCBP = m32_swap (td->hwCBP);
+ tdINFO = m32_swap(td->hwINFO);
+ tdBE = m32_swap(td->hwBE);
+ tdCBP = m32_swap(td->hwCBP);
- if (!(usb_pipetype (lurb_priv->pipe) == PIPE_CONTROL &&
+ if (!(usb_pipetype(lurb_priv->pipe) == PIPE_CONTROL &&
((td->index == 0) || (td->index == lurb_priv->length - 1)))) {
if (tdBE != 0) {
if (td->hwCBP == 0)
@@ -959,105 +995,128 @@ static void dl_transfer_length(td_t * td)
}
/*-------------------------------------------------------------------------*/
+static void check_status(td_t *td_list)
+{
+ urb_priv_t *lurb_priv = td_list->ed->purb;
+ int urb_len = lurb_priv->length;
+ __u32 *phwHeadP = &td_list->ed->hwHeadP;
+ int cc;
+
+ cc = TD_CC_GET(m32_swap(td_list->hwINFO));
+ if (cc) {
+ err(" USB-error: %s (%x)", cc_to_string[cc], cc);
+
+ if (*phwHeadP & m32_swap(0x1)) {
+ if (lurb_priv &&
+ ((td_list->index + 1) < urb_len)) {
+ *phwHeadP =
+ (lurb_priv->td[urb_len - 1]->hwNextTD &\
+ m32_swap(0xfffffff0)) |
+ (*phwHeadP & m32_swap(0x2));
+
+ lurb_priv->td_cnt += urb_len -
+ td_list->index - 1;
+ } else
+ *phwHeadP &= m32_swap(0xfffffff2);
+ }
+#ifdef CONFIG_MPC5200
+ td_list->hwNextTD = 0;
+#endif
+ }
+}
/* replies to the request have to be on a FIFO basis so
* we reverse the reversed done-list */
-
-static td_t * dl_reverse_done_list (ohci_t *ohci)
+static td_t *dl_reverse_done_list(ohci_t *ohci)
{
__u32 td_list_hc;
td_t *td_rev = NULL;
td_t *td_list = NULL;
- urb_priv_t *lurb_priv = NULL;
- td_list_hc = m32_swap (ohci->hcca->done_head) & 0xfffffff0;
+ td_list_hc = m32_swap(ohci->hcca->done_head) & 0xfffffff0;
ohci->hcca->done_head = 0;
while (td_list_hc) {
td_list = (td_t *)td_list_hc;
-
- if (TD_CC_GET (m32_swap (td_list->hwINFO))) {
- lurb_priv = td_list->ed->purb;
- dbg(" USB-error/status: %x : %p",
- TD_CC_GET (m32_swap (td_list->hwINFO)), td_list);
- if (td_list->ed->hwHeadP & m32_swap (0x1)) {
- if (lurb_priv && ((td_list->index + 1) < lurb_priv->length)) {
- td_list->ed->hwHeadP =
- (lurb_priv->td[lurb_priv->length - 1]->hwNextTD & m32_swap (0xfffffff0)) |
- (td_list->ed->hwHeadP & m32_swap (0x2));
- lurb_priv->td_cnt += lurb_priv->length - td_list->index - 1;
- } else
- td_list->ed->hwHeadP &= m32_swap (0xfffffff2);
- }
-#ifdef CONFIG_MPC5200
- td_list->hwNextTD = 0;
-#endif
- }
-
+ check_status(td_list);
td_list->next_dl_td = td_rev;
td_rev = td_list;
- td_list_hc = m32_swap (td_list->hwNextTD) & 0xfffffff0;
+ td_list_hc = m32_swap(td_list->hwNextTD) & 0xfffffff0;
}
return td_list;
}
/*-------------------------------------------------------------------------*/
+/*-------------------------------------------------------------------------*/
-/* td done list */
-static int dl_done_list (ohci_t *ohci, td_t *td_list)
+static void finish_urb(ohci_t *ohci, urb_priv_t *urb, int status)
+{
+ if ((status & (ED_OPER | ED_UNLINK)) && (urb->state != URB_DEL))
+ urb->finished = sohci_return_job(ohci, urb);
+ else
+ dbg("finish_urb: strange.., ED state %x, \n", status);
+}
+
+/*
+ * Used to take back a TD from the host controller. This would normally be
+ * called from within dl_done_list, however it may be called directly if the
+ * HC no longer sees the TD and it has not appeared on the donelist (after
+ * two frames). This bug has been observed on ZF Micro systems.
+ */
+static int takeback_td(ohci_t *ohci, td_t *td_list)
{
- td_t *td_list_next = NULL;
ed_t *ed;
- int cc = 0;
+ int cc;
int stat = 0;
/* urb_t *urb; */
urb_priv_t *lurb_priv;
__u32 tdINFO, edHeadP, edTailP;
- while (td_list) {
- td_list_next = td_list->next_dl_td;
+ tdINFO = m32_swap(td_list->hwINFO);
- tdINFO = m32_swap (td_list->hwINFO);
+ ed = td_list->ed;
+ lurb_priv = ed->purb;
- ed = td_list->ed;
- lurb_priv = ed->purb;
+ dl_transfer_length(td_list);
- dl_transfer_length(td_list);
+ lurb_priv->td_cnt++;
- /* error code of transfer */
- cc = TD_CC_GET (tdINFO);
- if (cc != 0) {
- dbg("ConditionCode %#x", cc);
- stat = cc_to_error[cc];
- }
+ /* error code of transfer */
+ cc = TD_CC_GET(tdINFO);
+ if (cc) {
+ err("USB-error: %s (%x)", cc_to_string[cc], cc);
+ stat = cc_to_error[cc];
+ }
- /* see if this done list makes for all TD's of current URB,
- * and mark the URB finished if so */
- if (++(lurb_priv->td_cnt) == lurb_priv->length) {
-#if 1
- if ((ed->state & (ED_OPER | ED_UNLINK)) &&
- (lurb_priv->state != URB_DEL))
-#else
- if ((ed->state & (ED_OPER | ED_UNLINK)))
-#endif
- lurb_priv->finished = sohci_return_job(ohci,
- lurb_priv);
- else
- dbg("dl_done_list: strange.., ED state %x, ed->state\n");
- } else
- dbg("dl_done_list: processing TD %x, len %x\n", lurb_priv->td_cnt,
- lurb_priv->length);
- if (ed->state != ED_NEW &&
- (usb_pipetype (lurb_priv->pipe) != PIPE_INTERRUPT)) {
- edHeadP = m32_swap (ed->hwHeadP) & 0xfffffff0;
- edTailP = m32_swap (ed->hwTailP);
-
- /* unlink eds if they are not busy */
- if ((edHeadP == edTailP) && (ed->state == ED_OPER))
- ep_unlink (ohci, ed);
- }
+ /* see if this done list makes for all TD's of current URB,
+ * and mark the URB finished if so */
+ if (lurb_priv->td_cnt == lurb_priv->length)
+ finish_urb(ohci, lurb_priv, ed->state);
+
+ dbg("dl_done_list: processing TD %x, len %x\n",
+ lurb_priv->td_cnt, lurb_priv->length);
+
+ if (ed->state != ED_NEW &&
+ (usb_pipetype(lurb_priv->pipe) != PIPE_INTERRUPT)) {
+ edHeadP = m32_swap(ed->hwHeadP) & 0xfffffff0;
+ edTailP = m32_swap(ed->hwTailP);
+
+ /* unlink eds if they are not busy */
+ if ((edHeadP == edTailP) && (ed->state == ED_OPER))
+ ep_unlink(ohci, ed);
+ }
+ return stat;
+}
- td_list = td_list_next;
+static int dl_done_list(ohci_t *ohci)
+{
+ int stat = 0;
+ td_t *td_list = dl_reverse_done_list(ohci);
+
+ while (td_list) {
+ td_t *td_next = td_list->next_dl_td;
+ stat = takeback_td(ohci, td_list);
+ td_list = td_next;
}
return stat;
}
@@ -1100,7 +1159,7 @@ static __u8 root_hub_config_des[] =
0x01, /* __u8 bConfigurationValue; */
0x00, /* __u8 iConfiguration; */
0x40, /* __u8 bmAttributes;
- Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */
+ Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */
0x00, /* __u8 MaxPower; */
/* interface */
@@ -1170,14 +1229,17 @@ static unsigned char root_hub_str_index1[] =
#define OK(x) len = (x); break
#ifdef DEBUG
-#define WR_RH_STAT(x) {info("WR:status %#8x", (x));writel((x), &gohci.regs->roothub.status);}
-#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, (x));writel((x), &gohci.regs->roothub.portstatus[wIndex-1]);}
+#define WR_RH_STAT(x) {info("WR:status %#8x", (x)); writel((x), \
+ &gohci.regs->roothub.status); }
+#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, \
+ (x)); writel((x), &gohci.regs->roothub.portstatus[wIndex-1]); }
#else
#define WR_RH_STAT(x) writel((x), &gohci.regs->roothub.status)
-#define WR_RH_PORTSTAT(x) writel((x), &gohci.regs->roothub.portstatus[wIndex-1])
+#define WR_RH_PORTSTAT(x) writel((x), \
+ &gohci.regs->roothub.portstatus[wIndex-1])
#endif
#define RD_RH_STAT roothub_status(&gohci)
-#define RD_RH_PORTSTAT roothub_portstatus(&gohci,wIndex-1)
+#define RD_RH_PORTSTAT roothub_portstatus(&gohci, wIndex-1)
/* request to virtual root hub */
@@ -1187,13 +1249,13 @@ int rh_check_port_status(ohci_t *controller)
int res;
res = -1;
- temp = roothub_a (controller);
+ temp = roothub_a(controller);
ndp = (temp & RH_A_NDP);
#ifdef CONFIG_AT91C_PQFP_UHPBUG
ndp = (ndp == 2) ? 1:0;
#endif
for (i = 0; i < ndp; i++) {
- temp = roothub_portstatus (controller, i);
+ temp = roothub_portstatus(controller, i);
/* check for a device disconnect */
if (((temp & (RH_PS_PESC | RH_PS_CSC)) ==
(RH_PS_PESC | RH_PS_CSC)) &&
@@ -1208,7 +1270,7 @@ int rh_check_port_status(ohci_t *controller)
static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
void *buffer, int transfer_len, struct devrequest *cmd)
{
- void * data = buffer;
+ void *data = buffer;
int leni = transfer_len;
int len = 0;
int stat = 0;
@@ -1220,7 +1282,8 @@ static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
__u16 wLength;
#ifdef DEBUG
-pkt_print(NULL, dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe));
+pkt_print(NULL, dev, pipe, buffer, transfer_len,
+ cmd, "SUB(rh)", usb_pipein(pipe));
#else
wait_ms(1);
#endif
@@ -1230,9 +1293,9 @@ pkt_print(NULL, dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe
}
bmRType_bReq = cmd->requesttype | (cmd->request << 8);
- wValue = le16_to_cpu (cmd->value);
- wIndex = le16_to_cpu (cmd->index);
- wLength = le16_to_cpu (cmd->length);
+ wValue = le16_to_cpu(cmd->value);
+ wIndex = le16_to_cpu(cmd->index);
+ wLength = le16_to_cpu(cmd->length);
info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x",
dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength);
@@ -1247,118 +1310,118 @@ pkt_print(NULL, dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe
*/
case RH_GET_STATUS:
- *(__u16 *) data_buf = cpu_to_le16 (1); OK (2);
+ *(__u16 *) data_buf = cpu_to_le16(1);
+ OK(2);
case RH_GET_STATUS | RH_INTERFACE:
- *(__u16 *) data_buf = cpu_to_le16 (0); OK (2);
+ *(__u16 *) data_buf = cpu_to_le16(0);
+ OK(2);
case RH_GET_STATUS | RH_ENDPOINT:
- *(__u16 *) data_buf = cpu_to_le16 (0); OK (2);
+ *(__u16 *) data_buf = cpu_to_le16(0);
+ OK(2);
case RH_GET_STATUS | RH_CLASS:
- *(__u32 *) data_buf = cpu_to_le32 (
+ *(__u32 *) data_buf = cpu_to_le32(
RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE));
- OK (4);
+ OK(4);
case RH_GET_STATUS | RH_OTHER | RH_CLASS:
- *(__u32 *) data_buf = cpu_to_le32 (RD_RH_PORTSTAT); OK (4);
+ *(__u32 *) data_buf = cpu_to_le32(RD_RH_PORTSTAT);
+ OK(4);
case RH_CLEAR_FEATURE | RH_ENDPOINT:
switch (wValue) {
- case (RH_ENDPOINT_STALL): OK (0);
+ case (RH_ENDPOINT_STALL):
+ OK(0);
}
break;
case RH_CLEAR_FEATURE | RH_CLASS:
switch (wValue) {
- case RH_C_HUB_LOCAL_POWER:
- OK(0);
- case (RH_C_HUB_OVER_CURRENT):
- WR_RH_STAT(RH_HS_OCIC); OK (0);
+ case RH_C_HUB_LOCAL_POWER:
+ OK(0);
+ case (RH_C_HUB_OVER_CURRENT):
+ WR_RH_STAT(RH_HS_OCIC);
+ OK(0);
}
break;
case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
switch (wValue) {
- case (RH_PORT_ENABLE):
- WR_RH_PORTSTAT (RH_PS_CCS ); OK (0);
- case (RH_PORT_SUSPEND):
- WR_RH_PORTSTAT (RH_PS_POCI); OK (0);
- case (RH_PORT_POWER):
- WR_RH_PORTSTAT (RH_PS_LSDA); OK (0);
- case (RH_C_PORT_CONNECTION):
- WR_RH_PORTSTAT (RH_PS_CSC ); OK (0);
- case (RH_C_PORT_ENABLE):
- WR_RH_PORTSTAT (RH_PS_PESC); OK (0);
- case (RH_C_PORT_SUSPEND):
- WR_RH_PORTSTAT (RH_PS_PSSC); OK (0);
- case (RH_C_PORT_OVER_CURRENT):
- WR_RH_PORTSTAT (RH_PS_OCIC); OK (0);
- case (RH_C_PORT_RESET):
- WR_RH_PORTSTAT (RH_PS_PRSC); OK (0);
+ case (RH_PORT_ENABLE): WR_RH_PORTSTAT(RH_PS_CCS); OK(0);
+ case (RH_PORT_SUSPEND): WR_RH_PORTSTAT(RH_PS_POCI); OK(0);
+ case (RH_PORT_POWER): WR_RH_PORTSTAT(RH_PS_LSDA); OK(0);
+ case (RH_C_PORT_CONNECTION): WR_RH_PORTSTAT(RH_PS_CSC); OK(0);
+ case (RH_C_PORT_ENABLE): WR_RH_PORTSTAT(RH_PS_PESC); OK(0);
+ case (RH_C_PORT_SUSPEND): WR_RH_PORTSTAT(RH_PS_PSSC); OK(0);
+ case (RH_C_PORT_OVER_CURRENT):WR_RH_PORTSTAT(RH_PS_OCIC); OK(0);
+ case (RH_C_PORT_RESET): WR_RH_PORTSTAT(RH_PS_PRSC); OK(0);
}
break;
case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
switch (wValue) {
- case (RH_PORT_SUSPEND):
- WR_RH_PORTSTAT (RH_PS_PSS ); OK (0);
- case (RH_PORT_RESET): /* BUG IN HUP CODE *********/
- if (RD_RH_PORTSTAT & RH_PS_CCS)
- WR_RH_PORTSTAT (RH_PS_PRS);
- OK (0);
- case (RH_PORT_POWER):
- WR_RH_PORTSTAT (RH_PS_PPS );
- wait_ms(100);
- OK (0);
- case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/
- if (RD_RH_PORTSTAT & RH_PS_CCS)
- WR_RH_PORTSTAT (RH_PS_PES );
- OK (0);
+ case (RH_PORT_SUSPEND):
+ WR_RH_PORTSTAT(RH_PS_PSS); OK(0);
+ case (RH_PORT_RESET): /* BUG IN HUP CODE *********/
+ if (RD_RH_PORTSTAT & RH_PS_CCS)
+ WR_RH_PORTSTAT(RH_PS_PRS);
+ OK(0);
+ case (RH_PORT_POWER):
+ WR_RH_PORTSTAT(RH_PS_PPS);
+ wait_ms(100);
+ OK(0);
+ case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/
+ if (RD_RH_PORTSTAT & RH_PS_CCS)
+ WR_RH_PORTSTAT(RH_PS_PES);
+ OK(0);
}
break;
- case RH_SET_ADDRESS: gohci.rh.devnum = wValue; OK(0);
+ case RH_SET_ADDRESS:
+ gohci.rh.devnum = wValue;
+ OK(0);
case RH_GET_DESCRIPTOR:
switch ((wValue & 0xff00) >> 8) {
- case (0x01): /* device descriptor */
+ case (0x01): /* device descriptor */
+ len = min_t(unsigned int,
+ leni,
+ min_t(unsigned int,
+ sizeof(root_hub_dev_des),
+ wLength));
+ data_buf = root_hub_dev_des; OK(len);
+ case (0x02): /* configuration descriptor */
+ len = min_t(unsigned int,
+ leni,
+ min_t(unsigned int,
+ sizeof(root_hub_config_des),
+ wLength));
+ data_buf = root_hub_config_des; OK(len);
+ case (0x03): /* string descriptors */
+ if (wValue == 0x0300) {
len = min_t(unsigned int,
- leni,
- min_t(unsigned int,
- sizeof (root_hub_dev_des),
- wLength));
- data_buf = root_hub_dev_des; OK(len);
- case (0x02): /* configuration descriptor */
- len = min_t(unsigned int,
- leni,
- min_t(unsigned int,
- sizeof (root_hub_config_des),
- wLength));
- data_buf = root_hub_config_des; OK(len);
- case (0x03): /* string descriptors */
- if(wValue==0x0300) {
- len = min_t(unsigned int,
- leni,
- min_t(unsigned int,
- sizeof (root_hub_str_index0),
- wLength));
- data_buf = root_hub_str_index0;
- OK(len);
- }
- if(wValue==0x0301) {
- len = min_t(unsigned int,
- leni,
- min_t(unsigned int,
- sizeof (root_hub_str_index1),
- wLength));
- data_buf = root_hub_str_index1;
- OK(len);
+ leni,
+ min_t(unsigned int,
+ sizeof(root_hub_str_index0),
+ wLength));
+ data_buf = root_hub_str_index0;
+ OK(len);
}
- default:
- stat = USB_ST_STALLED;
+ if (wValue == 0x0301) {
+ len = min_t(unsigned int,
+ leni,
+ min_t(unsigned int,
+ sizeof(root_hub_str_index1),
+ wLength));
+ data_buf = root_hub_str_index1;
+ OK(len);
+ }
+ default:
+ stat = USB_ST_STALLED;
}
break;
case RH_GET_DESCRIPTOR | RH_CLASS:
{
- __u32 temp = roothub_a (&gohci);
+ __u32 temp = roothub_a(&gohci);
data_buf [0] = 9; /* min length; */
data_buf [1] = 0x29;
@@ -1371,13 +1434,13 @@ pkt_print(NULL, dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe
data_buf [3] |= 0x1;
if (temp & RH_A_NOCP) /* no overcurrent reporting? */
data_buf [3] |= 0x10;
- else if (temp & RH_A_OCPM) /* per-port overcurrent reporting? */
+ else if (temp & RH_A_OCPM)/* per-port overcurrent reporting? */
data_buf [3] |= 0x8;
/* corresponds to data_buf[4-7] */
datab [1] = 0;
data_buf [5] = (temp & RH_A_POTPGT) >> 24;
- temp = roothub_b (&gohci);
+ temp = roothub_b(&gohci);
data_buf [7] = temp & RH_B_DR;
if (data_buf [2] < 7) {
data_buf [8] = 0xff;
@@ -1389,32 +1452,33 @@ pkt_print(NULL, dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe
len = min_t(unsigned int, leni,
min_t(unsigned int, data_buf [0], wLength));
- OK (len);
+ OK(len);
}
- case RH_GET_CONFIGURATION: *(__u8 *) data_buf = 0x01; OK (1);
+ case RH_GET_CONFIGURATION: *(__u8 *) data_buf = 0x01; OK(1);
- case RH_SET_CONFIGURATION: WR_RH_STAT (0x10000); OK (0);
+ case RH_SET_CONFIGURATION: WR_RH_STAT(0x10000); OK(0);
default:
- dbg ("unsupported root hub command");
+ dbg("unsupported root hub command");
stat = USB_ST_STALLED;
}
#ifdef DEBUG
- ohci_dump_roothub (&gohci, 1);
+ ohci_dump_roothub(&gohci, 1);
#else
wait_ms(1);
#endif
len = min_t(int, len, leni);
if (data != data_buf)
- memcpy (data, data_buf, len);
+ memcpy(data, data_buf, len);
dev->act_len = len;
dev->status = stat;
#ifdef DEBUG
- pkt_print(NULL, dev, pipe, buffer, transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/);
+ pkt_print(NULL, dev, pipe, buffer,
+ transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/);
#else
wait_ms(1);
#endif
@@ -1451,7 +1515,8 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
#ifdef DEBUG
urb->actual_length = 0;
- pkt_print(urb, dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe));
+ pkt_print(urb, dev, pipe, buffer, transfer_len,
+ setup, "SUB", usb_pipein(pipe));
#else
wait_ms(1);
#endif
@@ -1473,7 +1538,7 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
/* allow more time for a BULK device to react - some are slow */
#define BULK_TO 5000 /* timeout in milliseconds */
- if (usb_pipetype (pipe) == PIPE_BULK)
+ if (usb_pipetype(pipe) == PIPE_BULK)
timeout = BULK_TO;
else
timeout = 100;
@@ -1504,7 +1569,7 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
if (--timeout) {
wait_ms(1);
if (!urb->finished)
- dbg("\%");
+ dbg("*");
} else {
err("CTL:TIMEOUT ");
@@ -1519,14 +1584,15 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
dev->act_len = transfer_len;
#ifdef DEBUG
- pkt_print(urb, dev, pipe, buffer, transfer_len, setup, "RET(ctlr)", usb_pipein(pipe));
+ pkt_print(urb, dev, pipe, buffer, transfer_len,
+ setup, "RET(ctlr)", usb_pipein(pipe));
#else
wait_ms(1);
#endif
/* free TDs in urb_priv */
- if (usb_pipetype (pipe) != PIPE_INTERRUPT)
- urb_free_priv (urb);
+ if (usb_pipetype(pipe) != PIPE_INTERRUPT)
+ urb_free_priv(urb);
return 0;
}
@@ -1545,7 +1611,8 @@ int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
info("submit_control_msg");
#ifdef DEBUG
- pkt_print(NULL, dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe));
+ pkt_print(NULL, dev, pipe, buffer, transfer_len,
+ setup, "SUB", usb_pipein(pipe));
#else
wait_ms(1);
#endif
@@ -1578,7 +1645,7 @@ int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
/* reset the HC and BUS */
-static int hc_reset (ohci_t *ohci)
+static int hc_reset(ohci_t *ohci)
{
#ifdef CONFIG_PCI_EHCI_DEVNO
pci_dev_t pdev;
@@ -1599,7 +1666,7 @@ static int hc_reset (ohci_t *ohci)
int timeout = 1000;
pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &base);
- writel (readl(base + EHCI_USBCMD_OFF) | EHCI_USBCMD_HCRESET,
+ writel(readl(base + EHCI_USBCMD_OFF) | EHCI_USBCMD_HCRESET,
base + EHCI_USBCMD_OFF);
while (readl(base + EHCI_USBCMD_OFF) & EHCI_USBCMD_HCRESET) {
@@ -1612,11 +1679,12 @@ static int hc_reset (ohci_t *ohci)
} else
printf("No EHCI func at %d index!\n", CONFIG_PCI_EHCI_DEVNO);
#endif
- if (readl (&ohci->regs->control) & OHCI_CTRL_IR) { /* SMM owns the HC */
- writel (OHCI_OCR, &ohci->regs->cmdstatus); /* request ownership */
+ if (readl(&ohci->regs->control) & OHCI_CTRL_IR) {
+ /* SMM owns the HC */
+ writel(OHCI_OCR, &ohci->regs->cmdstatus);/* request ownership */
info("USB HC TakeOver from SMM");
- while (readl (&ohci->regs->control) & OHCI_CTRL_IR) {
- wait_ms (10);
+ while (readl(&ohci->regs->control) & OHCI_CTRL_IR) {
+ wait_ms(10);
if (--smm_timeout == 0) {
err("USB HC TakeOver failed!");
return -1;
@@ -1625,7 +1693,7 @@ static int hc_reset (ohci_t *ohci)
}
/* Disable HC interrupts */
- writel (OHCI_INTR_MIE, &ohci->regs->intrdisable);
+ writel(OHCI_INTR_MIE, &ohci->regs->intrdisable);
dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;\n",
ohci->slot_name,
@@ -1633,16 +1701,16 @@ static int hc_reset (ohci_t *ohci)
/* Reset USB (needed by some controllers) */
ohci->hc_control = 0;
- writel (ohci->hc_control, &ohci->regs->control);
+ writel(ohci->hc_control, &ohci->regs->control);
/* HC Reset requires max 10 us delay */
- writel (OHCI_HCR, &ohci->regs->cmdstatus);
- while ((readl (&ohci->regs->cmdstatus) & OHCI_HCR) != 0) {
+ writel(OHCI_HCR, &ohci->regs->cmdstatus);
+ while ((readl(&ohci->regs->cmdstatus) & OHCI_HCR) != 0) {
if (--timeout == 0) {
err("USB HC reset timed out!");
return -1;
}
- udelay (1);
+ udelay(1);
}
return 0;
}
@@ -1653,7 +1721,7 @@ static int hc_reset (ohci_t *ohci)
* enable interrupts
* connect the virtual root hub */
-static int hc_start (ohci_t * ohci)
+static int hc_start(ohci_t *ohci)
{
__u32 mask;
unsigned int fminterval;
@@ -1663,44 +1731,44 @@ static int hc_start (ohci_t * ohci)
/* Tell the controller where the control and bulk lists are
* The lists are empty now. */
- writel (0, &ohci->regs->ed_controlhead);
- writel (0, &ohci->regs->ed_bulkhead);
+ writel(0, &ohci->regs->ed_controlhead);
+ writel(0, &ohci->regs->ed_bulkhead);
- writel ((__u32)ohci->hcca, &ohci->regs->hcca); /* a reset clears this */
+ writel((__u32)ohci->hcca, &ohci->regs->hcca); /* a reset clears this */
fminterval = 0x2edf;
- writel ((fminterval * 9) / 10, &ohci->regs->periodicstart);
+ writel((fminterval * 9) / 10, &ohci->regs->periodicstart);
fminterval |= ((((fminterval - 210) * 6) / 7) << 16);
- writel (fminterval, &ohci->regs->fminterval);
- writel (0x628, &ohci->regs->lsthresh);
+ writel(fminterval, &ohci->regs->fminterval);
+ writel(0x628, &ohci->regs->lsthresh);
/* start controller operations */
ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER;
ohci->disabled = 0;
- writel (ohci->hc_control, &ohci->regs->control);
+ writel(ohci->hc_control, &ohci->regs->control);
/* disable all interrupts */
mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD |
OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC |
OHCI_INTR_OC | OHCI_INTR_MIE);
- writel (mask, &ohci->regs->intrdisable);
+ writel(mask, &ohci->regs->intrdisable);
/* clear all interrupts */
mask &= ~OHCI_INTR_MIE;
- writel (mask, &ohci->regs->intrstatus);
+ writel(mask, &ohci->regs->intrstatus);
/* Choose the interrupts we care about now - but w/o MIE */
mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO;
- writel (mask, &ohci->regs->intrenable);
+ writel(mask, &ohci->regs->intrenable);
#ifdef OHCI_USE_NPS
/* required for AMD-756 and some Mac platforms */
- writel ((roothub_a (ohci) | RH_A_NPS) & ~RH_A_PSM,
+ writel((roothub_a(ohci) | RH_A_NPS) & ~RH_A_PSM,
&ohci->regs->roothub.a);
- writel (RH_HS_LPSC, &ohci->regs->roothub.status);
+ writel(RH_HS_LPSC, &ohci->regs->roothub.status);
#endif /* OHCI_USE_NPS */
-#define mdelay(n) ({unsigned long msec=(n); while (msec--) udelay(1000);})
+#define mdelay(n) ({unsigned long msec = (n); while (msec--) udelay(1000); })
/* POTPGT delay is bits 24-31, in 2 ms units. */
- mdelay ((roothub_a (ohci) >> 23) & 0x1fe);
+ mdelay((roothub_a(ohci) >> 23) & 0x1fe);
/* connect the virtual root hub */
ohci->rh.devnum = 0;
@@ -1718,7 +1786,7 @@ void usb_event_poll(void)
/* an interrupt happens */
-static int hc_interrupt (void)
+static int hc_interrupt(void)
{
ohci_t *ohci = &gohci;
struct ohci_regs *regs = ohci->regs;
@@ -1726,69 +1794,74 @@ static int hc_interrupt (void)
int stat = -1;
if ((ohci->hcca->done_head != 0) &&
- !(m32_swap (ohci->hcca->done_head) & 0x01)) {
+ !(m32_swap(ohci->hcca->done_head) & 0x01)) {
ints = OHCI_INTR_WDH;
- } else if ((ints = readl (&regs->intrstatus)) == ~(u32)0) {
- ohci->disabled++;
- err ("%s device removed!", ohci->slot_name);
- return -1;
- } else if ((ints &= readl (&regs->intrenable)) == 0) {
- dbg("hc_interrupt: returning..\n");
- return 0xff;
+ } else {
+ ints = readl(&regs->intrstatus);
+ if (ints == ~(u32)0) {
+ ohci->disabled++;
+ err("%s device removed!", ohci->slot_name);
+ return -1;
+ } else {
+ ints &= readl(&regs->intrenable);
+ if (ints == 0) {
+ dbg("hc_interrupt: returning..\n");
+ return 0xff;
+ }
+ }
}
- /* dbg("Interrupt: %x frame: %x", ints, le16_to_cpu (ohci->hcca->frame_no)); */
+ /* dbg("Interrupt: %x frame: %x", ints,
+ le16_to_cpu(ohci->hcca->frame_no)); */
- if (ints & OHCI_INTR_RHSC) {
- got_rhsc = 1;
+ if (ints & OHCI_INTR_RHSC)
stat = 0xff;
- }
if (ints & OHCI_INTR_UE) {
ohci->disabled++;
- err ("OHCI Unrecoverable Error, controller usb-%s disabled",
+ err("OHCI Unrecoverable Error, controller usb-%s disabled",
ohci->slot_name);
/* e.g. due to PCI Master/Target Abort */
#ifdef DEBUG
- ohci_dump (ohci, 1);
+ ohci_dump(ohci, 1);
#else
- wait_ms(1);
+ wait_ms(1);
#endif
/* FIXME: be optimistic, hope that bug won't repeat often. */
/* Make some non-interrupt context restart the controller. */
/* Count and limit the retries though; either hardware or */
/* software errors can go forever... */
- hc_reset (ohci);
+ hc_reset(ohci);
return -1;
}
if (ints & OHCI_INTR_WDH) {
wait_ms(1);
- writel (OHCI_INTR_WDH, &regs->intrdisable);
- (void)readl (&regs->intrdisable); /* flush */
- stat = dl_done_list (&gohci, dl_reverse_done_list (&gohci));
- writel (OHCI_INTR_WDH, &regs->intrenable);
- (void)readl (&regs->intrdisable); /* flush */
+ writel(OHCI_INTR_WDH, &regs->intrdisable);
+ (void)readl(&regs->intrdisable); /* flush */
+ stat = dl_done_list(&gohci);
+ writel(OHCI_INTR_WDH, &regs->intrenable);
+ (void)readl(&regs->intrdisable); /* flush */
}
if (ints & OHCI_INTR_SO) {
dbg("USB Schedule overrun\n");
- writel (OHCI_INTR_SO, &regs->intrenable);
+ writel(OHCI_INTR_SO, &regs->intrenable);
stat = -1;
}
/* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */
if (ints & OHCI_INTR_SF) {
- unsigned int frame = m16_swap (ohci->hcca->frame_no) & 1;
+ unsigned int frame = m16_swap(ohci->hcca->frame_no) & 1;
wait_ms(1);
- writel (OHCI_INTR_SF, &regs->intrdisable);
+ writel(OHCI_INTR_SF, &regs->intrdisable);
if (ohci->ed_rm_list[frame] != NULL)
- writel (OHCI_INTR_SF, &regs->intrenable);
+ writel(OHCI_INTR_SF, &regs->intrenable);
stat = 0xff;
}
- writel (ints, &regs->intrstatus);
+ writel(ints, &regs->intrstatus);
return stat;
}
@@ -1798,12 +1871,12 @@ static int hc_interrupt (void)
/* De-allocate all resources.. */
-static void hc_release_ohci (ohci_t *ohci)
+static void hc_release_ohci(ohci_t *ohci)
{
- dbg ("USB HC release ohci usb-%s", ohci->slot_name);
+ dbg("USB HC release ohci usb-%s", ohci->slot_name);
if (!ohci->disabled)
- hc_reset (ohci);
+ hc_reset(ohci);
}
/*-------------------------------------------------------------------------*/
@@ -1821,16 +1894,16 @@ int usb_lowlevel_init(void)
#ifdef CFG_USB_OHCI_CPU_INIT
/* cpu dependant init */
- if(usb_cpu_init())
+ if (usb_cpu_init())
return -1;
#endif
#ifdef CFG_USB_OHCI_BOARD_INIT
/* board dependant init */
- if(usb_board_init())
+ if (usb_board_init())
return -1;
#endif
- memset (&gohci, 0, sizeof (ohci_t));
+ memset(&gohci, 0, sizeof(ohci_t));
/* align the storage */
if ((__u32)&ghcca[0] & 0xff) {
@@ -1851,7 +1924,7 @@ int usb_lowlevel_init(void)
}
ptd = gtd;
gohci.hcca = phcca;
- memset (phcca, 0, sizeof (struct ohci_hcca));
+ memset(phcca, 0, sizeof(struct ohci_hcca));
gohci.disabled = 1;
gohci.sleeping = 0;
@@ -1879,9 +1952,9 @@ int usb_lowlevel_init(void)
gohci.flags = 0;
gohci.slot_name = CFG_USB_OHCI_SLOT_NAME;
- if (hc_reset (&gohci) < 0) {
- hc_release_ohci (&gohci);
- err ("can't reset usb-%s", gohci.slot_name);
+ if (hc_reset(&gohci) < 0) {
+ hc_release_ohci(&gohci);
+ err("can't reset usb-%s", gohci.slot_name);
#ifdef CFG_USB_OHCI_BOARD_INIT
/* board dependant cleanup */
usb_board_init_fail();
@@ -1894,12 +1967,9 @@ int usb_lowlevel_init(void)
return -1;
}
- /* FIXME this is a second HC reset; why?? */
- /* writel(gohci.hc_control = OHCI_USB_RESET, &gohci.regs->control);
- wait_ms(10); */
- if (hc_start (&gohci) < 0) {
- err ("can't start usb-%s", gohci.slot_name);
- hc_release_ohci (&gohci);
+ if (hc_start(&gohci) < 0) {
+ err("can't start usb-%s", gohci.slot_name);
+ hc_release_ohci(&gohci);
/* Initialization failed */
#ifdef CFG_USB_OHCI_BOARD_INIT
/* board dependant cleanup */
@@ -1914,7 +1984,7 @@ int usb_lowlevel_init(void)
}
#ifdef DEBUG
- ohci_dump (&gohci, 1);
+ ohci_dump(&gohci, 1);
#else
wait_ms(1);
#endif
@@ -1930,17 +2000,17 @@ int usb_lowlevel_stop(void)
return 0;
/* TODO release any interrupts, etc. */
/* call hc_release_ohci() here ? */
- hc_reset (&gohci);
+ hc_reset(&gohci);
#ifdef CFG_USB_OHCI_BOARD_INIT
/* board dependant cleanup */
- if(usb_board_stop())
+ if (usb_board_stop())
return -1;
#endif
#ifdef CFG_USB_OHCI_CPU_INIT
/* cpu dependant cleanup */
- if(usb_cpu_stop())
+ if (usb_cpu_stop())
return -1;
#endif
/* This driver is no longer initialised. It needs a new low-level
diff --git a/drivers/usb/usb_ohci.h b/drivers/usb/usb_ohci.h
index 7a04bf5..50aaafd 100644
--- a/drivers/usb/usb_ohci.h
+++ b/drivers/usb/usb_ohci.h
@@ -38,6 +38,41 @@ static int cc_to_error[16] = {
/* Not Access */ -1
};
+static const char *cc_to_string[16] = {
+ "No Error",
+ "CRC: Last data packet from endpoint contained a CRC error.",
+ "BITSTUFFING: Last data packet from endpoint contained a bit " \
+ "stuffing violation",
+ "DATATOGGLEMISMATCH: Last packet from endpoint had data toggle PID\n" \
+ "that did not match the expected value.",
+ "STALL: TD was moved to the Done Queue because the endpoint returned" \
+ " a STALL PID",
+ "DEVICENOTRESPONDING: Device did not respond to token (IN) or did\n" \
+ "not provide a handshake (OUT)",
+ "PIDCHECKFAILURE: Check bits on PID from endpoint failed on data PID\n"\
+ "(IN) or handshake (OUT)",
+ "UNEXPECTEDPID: Receive PID was not valid when encountered or PID\n" \
+ "value is not defined.",
+ "DATAOVERRUN: The amount of data returned by the endpoint exceeded\n" \
+ "either the size of the maximum data packet allowed\n" \
+ "from the endpoint (found in MaximumPacketSize field\n" \
+ "of ED) or the remaining buffer size.",
+ "DATAUNDERRUN: The endpoint returned less than MaximumPacketSize\n" \
+ "and that amount was not sufficient to fill the\n" \
+ "specified buffer",
+ "reserved1",
+ "reserved2",
+ "BUFFEROVERRUN: During an IN, HC received data from endpoint faster\n" \
+ "than it could be written to system memory",
+ "BUFFERUNDERRUN: During an OUT, HC could not retrieve data from\n" \
+ "system memory fast enough to keep up with data USB " \
+ "data rate.",
+ "NOT ACCESSED: This code is set by software before the TD is placed" \
+ "on a list to be processed by the HC.(1)",
+ "NOT ACCESSED: This code is set by software before the TD is placed" \
+ "on a list to be processed by the HC.(2)",
+};
+
/* ED States */
#define ED_NEW 0x00
generated by cgit v1.1 at 2024-11-26 02:27:16 +0000