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path: root/drivers/usb/gadget
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-rw-r--r--drivers/usb/gadget/Kconfig10
-rw-r--r--drivers/usb/gadget/net2280.c1119
-rw-r--r--drivers/usb/gadget/net2280.h121
3 files changed, 1152 insertions, 98 deletions
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index ba18e9c110cc..49e434ec527d 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -409,7 +409,7 @@ config USB_NET2272_DMA
If unsure, say "N" here. The driver works fine in PIO mode.
config USB_NET2280
- tristate "NetChip 228x"
+ tristate "NetChip 228x / PLX USB338x"
depends on PCI
help
NetChip 2280 / 2282 is a PCI based USB peripheral controller which
@@ -419,6 +419,14 @@ config USB_NET2280
(for control transfers) and several endpoints with dedicated
functions.
+ PLX 3380 / 3382 is a PCIe based USB peripheral controller which
+ supports full, high speed USB 2.0 and super speed USB 3.0
+ data transfers.
+
+ It has eight configurable endpoints, as well as endpoint zero
+ (for control transfers) and several endpoints with dedicated
+ functions.
+
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "net2280" and force all
gadget drivers to also be dynamically linked.
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index 300b3a71383b..8112d9140a90 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -18,6 +18,9 @@
* hint to completely eliminate some IRQs, if a later IRQ is guaranteed
* and DMA chaining is enabled.
*
+ * MSI is enabled by default. The legacy IRQ is used if MSI couldn't
+ * be enabled.
+ *
* Note that almost all the errata workarounds here are only needed for
* rev1 chips. Rev1a silicon (0110) fixes almost all of them.
*/
@@ -25,10 +28,14 @@
/*
* Copyright (C) 2003 David Brownell
* Copyright (C) 2003-2005 PLX Technology, Inc.
+ * Copyright (C) 2014 Ricardo Ribalda - Qtechnology/AS
*
* Modified Seth Levy 2005 PLX Technology, Inc. to provide compatibility
* with 2282 chip
*
+ * Modified Ricardo Ribalda Qtechnology AS to provide compatibility
+ * with usb 338x chip. Based on PLX driver
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
@@ -61,9 +68,8 @@
#include <asm/irq.h>
#include <asm/unaligned.h>
-
-#define DRIVER_DESC "PLX NET228x USB Peripheral Controller"
-#define DRIVER_VERSION "2005 Sept 27"
+#define DRIVER_DESC "PLX NET228x/USB338x USB Peripheral Controller"
+#define DRIVER_VERSION "2005 Sept 27/v3.0"
#define EP_DONTUSE 13 /* nonzero */
@@ -73,11 +79,12 @@
static const char driver_name [] = "net2280";
static const char driver_desc [] = DRIVER_DESC;
+static const u32 ep_bit[9] = { 0, 17, 2, 19, 4, 1, 18, 3, 20 };
static const char ep0name [] = "ep0";
static const char *const ep_name [] = {
ep0name,
"ep-a", "ep-b", "ep-c", "ep-d",
- "ep-e", "ep-f",
+ "ep-e", "ep-f", "ep-g", "ep-h",
};
/* use_dma -- general goodness, fewer interrupts, less cpu load (vs PIO)
@@ -90,11 +97,12 @@ static const char *const ep_name [] = {
*/
static bool use_dma = 1;
static bool use_dma_chaining = 0;
+static bool use_msi = 1;
/* "modprobe net2280 use_dma=n" etc */
module_param (use_dma, bool, S_IRUGO);
module_param (use_dma_chaining, bool, S_IRUGO);
-
+module_param(use_msi, bool, S_IRUGO);
/* mode 0 == ep-{a,b,c,d} 1K fifo each
* mode 1 == ep-{a,b} 2K fifo each, ep-{c,d} unavailable
@@ -140,6 +148,18 @@ static char *type_string (u8 bmAttributes)
#define dma_done_ie cpu_to_le32 (1 << DMA_DONE_INTERRUPT_ENABLE)
/*-------------------------------------------------------------------------*/
+static inline void enable_pciirqenb(struct net2280_ep *ep)
+{
+ u32 tmp = readl(&ep->dev->regs->pciirqenb0);
+
+ if (ep->dev->pdev->vendor == 0x17cc)
+ tmp |= 1 << ep->num;
+ else
+ tmp |= 1 << ep_bit[ep->num];
+ writel(tmp, &ep->dev->regs->pciirqenb0);
+
+ return;
+}
static int
net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
@@ -148,6 +168,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
struct net2280_ep *ep;
u32 max, tmp;
unsigned long flags;
+ static const u32 ep_key[9] = { 1, 0, 1, 0, 1, 1, 0, 1, 0 };
ep = container_of (_ep, struct net2280_ep, ep);
if (!_ep || !desc || ep->desc || _ep->name == ep0name
@@ -161,9 +182,17 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
if ((desc->bEndpointAddress & 0x0f) == EP_DONTUSE)
return -EDOM;
+ if (dev->pdev->vendor == 0x10b5) {
+ if ((desc->bEndpointAddress & 0x0f) >= 0x0c)
+ return -EDOM;
+ ep->is_in = !!usb_endpoint_dir_in(desc);
+ if (dev->enhanced_mode && ep->is_in && ep_key[ep->num])
+ return -EINVAL;
+ }
+
/* sanity check ep-e/ep-f since their fifos are small */
max = usb_endpoint_maxp (desc) & 0x1fff;
- if (ep->num > 4 && max > 64)
+ if (ep->num > 4 && max > 64 && (dev->pdev->vendor == 0x17cc))
return -ERANGE;
spin_lock_irqsave (&dev->lock, flags);
@@ -176,7 +205,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
ep->out_overflow = 0;
/* set speed-dependent max packet; may kick in high bandwidth */
- set_idx_reg (dev->regs, REG_EP_MAXPKT (dev, ep->num), max);
+ set_max_speed(ep, max);
/* FIFO lines can't go to different packets. PIO is ok, so
* use it instead of troublesome (non-bulk) multi-packet DMA.
@@ -199,23 +228,43 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
&ep->regs->ep_rsp);
} else if (tmp == USB_ENDPOINT_XFER_BULK) {
/* catch some particularly blatant driver bugs */
- if ((dev->gadget.speed == USB_SPEED_HIGH
- && max != 512)
- || (dev->gadget.speed == USB_SPEED_FULL
- && max > 64)) {
- spin_unlock_irqrestore (&dev->lock, flags);
+ if ((dev->gadget.speed == USB_SPEED_SUPER && max != 1024) ||
+ (dev->gadget.speed == USB_SPEED_HIGH && max != 512) ||
+ (dev->gadget.speed == USB_SPEED_FULL && max > 64)) {
+ spin_unlock_irqrestore(&dev->lock, flags);
return -ERANGE;
}
}
ep->is_iso = (tmp == USB_ENDPOINT_XFER_ISOC) ? 1 : 0;
- tmp <<= ENDPOINT_TYPE;
- tmp |= desc->bEndpointAddress;
- tmp |= (4 << ENDPOINT_BYTE_COUNT); /* default full fifo lines */
- tmp |= 1 << ENDPOINT_ENABLE;
- wmb ();
+ /* Enable this endpoint */
+ if (dev->pdev->vendor == 0x17cc) {
+ tmp <<= ENDPOINT_TYPE;
+ tmp |= desc->bEndpointAddress;
+ /* default full fifo lines */
+ tmp |= (4 << ENDPOINT_BYTE_COUNT);
+ tmp |= 1 << ENDPOINT_ENABLE;
+ ep->is_in = (tmp & USB_DIR_IN) != 0;
+ } else {
+ /* In Legacy mode, only OUT endpoints are used */
+ if (dev->enhanced_mode && ep->is_in) {
+ tmp <<= IN_ENDPOINT_TYPE;
+ tmp |= (1 << IN_ENDPOINT_ENABLE);
+ /* Not applicable to Legacy */
+ tmp |= (1 << ENDPOINT_DIRECTION);
+ } else {
+ tmp <<= OUT_ENDPOINT_TYPE;
+ tmp |= (1 << OUT_ENDPOINT_ENABLE);
+ tmp |= (ep->is_in << ENDPOINT_DIRECTION);
+ }
+
+ tmp |= usb_endpoint_num(desc);
+ tmp |= (ep->ep.maxburst << MAX_BURST_SIZE);
+ }
+
+ /* Make sure all the registers are written before ep_rsp*/
+ wmb();
/* for OUT transfers, block the rx fifo until a read is posted */
- ep->is_in = (tmp & USB_DIR_IN) != 0;
if (!ep->is_in)
writel ((1 << SET_NAK_OUT_PACKETS), &ep->regs->ep_rsp);
else if (dev->pdev->device != 0x2280) {
@@ -226,12 +275,11 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
| (1 << CLEAR_NAK_OUT_PACKETS_MODE), &ep->regs->ep_rsp);
}
- writel (tmp, &ep->regs->ep_cfg);
+ writel(tmp, &ep->cfg->ep_cfg);
/* enable irqs */
if (!ep->dma) { /* pio, per-packet */
- tmp = (1 << ep->num) | readl (&dev->regs->pciirqenb0);
- writel (tmp, &dev->regs->pciirqenb0);
+ enable_pciirqenb(ep);
tmp = (1 << DATA_PACKET_RECEIVED_INTERRUPT_ENABLE)
| (1 << DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE);
@@ -251,8 +299,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
tmp = (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT_ENABLE);
writel (tmp, &ep->regs->ep_irqenb);
- tmp = (1 << ep->num) | readl (&dev->regs->pciirqenb0);
- writel (tmp, &dev->regs->pciirqenb0);
+ enable_pciirqenb(ep);
}
}
@@ -286,7 +333,8 @@ static int handshake (u32 __iomem *ptr, u32 mask, u32 done, int usec)
static const struct usb_ep_ops net2280_ep_ops;
-static void ep_reset (struct net2280_regs __iomem *regs, struct net2280_ep *ep)
+static void ep_reset_228x(struct net2280_regs __iomem *regs,
+ struct net2280_ep *ep)
{
u32 tmp;
@@ -361,6 +409,55 @@ static void ep_reset (struct net2280_regs __iomem *regs, struct net2280_ep *ep)
/* fifo size is handled separately */
}
+static void ep_reset_338x(struct net2280_regs __iomem *regs,
+ struct net2280_ep *ep)
+{
+ u32 tmp, dmastat;
+
+ ep->desc = NULL;
+ INIT_LIST_HEAD(&ep->queue);
+
+ usb_ep_set_maxpacket_limit(&ep->ep, ~0);
+ ep->ep.ops = &net2280_ep_ops;
+
+ /* disable the dma, irqs, endpoint... */
+ if (ep->dma) {
+ writel(0, &ep->dma->dmactl);
+ writel((1 << DMA_ABORT_DONE_INTERRUPT) |
+ (1 << DMA_PAUSE_DONE_INTERRUPT) |
+ (1 << DMA_SCATTER_GATHER_DONE_INTERRUPT) |
+ (1 << DMA_TRANSACTION_DONE_INTERRUPT)
+ /* | (1 << DMA_ABORT) */
+ , &ep->dma->dmastat);
+
+ dmastat = readl(&ep->dma->dmastat);
+ if (dmastat == 0x5002) {
+ WARNING(ep->dev, "The dmastat return = %x!!\n",
+ dmastat);
+ writel(0x5a, &ep->dma->dmastat);
+ }
+
+ tmp = readl(&regs->pciirqenb0);
+ tmp &= ~(1 << ep_bit[ep->num]);
+ writel(tmp, &regs->pciirqenb0);
+ } else {
+ if (ep->num < 5) {
+ tmp = readl(&regs->pciirqenb1);
+ tmp &= ~(1 << (8 + ep->num)); /* completion */
+ writel(tmp, &regs->pciirqenb1);
+ }
+ }
+ writel(0, &ep->regs->ep_irqenb);
+
+ writel((1 << SHORT_PACKET_OUT_DONE_INTERRUPT) |
+ (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT) |
+ (1 << FIFO_OVERFLOW) |
+ (1 << DATA_PACKET_RECEIVED_INTERRUPT) |
+ (1 << DATA_PACKET_TRANSMITTED_INTERRUPT) |
+ (1 << DATA_OUT_PING_TOKEN_INTERRUPT) |
+ (1 << DATA_IN_TOKEN_INTERRUPT), &ep->regs->ep_stat);
+}
+
static void nuke (struct net2280_ep *);
static int net2280_disable (struct usb_ep *_ep)
@@ -374,13 +471,17 @@ static int net2280_disable (struct usb_ep *_ep)
spin_lock_irqsave (&ep->dev->lock, flags);
nuke (ep);
- ep_reset (ep->dev->regs, ep);
+
+ if (ep->dev->pdev->vendor == 0x10b5)
+ ep_reset_338x(ep->dev->regs, ep);
+ else
+ ep_reset_228x(ep->dev->regs, ep);
VDEBUG (ep->dev, "disabled %s %s\n",
ep->dma ? "dma" : "pio", _ep->name);
/* synch memory views with the device */
- (void) readl (&ep->regs->ep_cfg);
+ (void)readl(&ep->cfg->ep_cfg);
if (use_dma && !ep->dma && ep->num >= 1 && ep->num <= 4)
ep->dma = &ep->dev->dma [ep->num - 1];
@@ -698,6 +799,8 @@ static void start_queue (struct net2280_ep *ep, u32 dmactl, u32 td_dma)
writel (readl (&dma->dmastat), &dma->dmastat);
writel (td_dma, &dma->dmadesc);
+ if (ep->dev->pdev->vendor == 0x10b5)
+ dmactl |= (0x01 << DMA_REQUEST_OUTSTANDING);
writel (dmactl, &dma->dmactl);
/* erratum 0116 workaround part 3: pci arbiter away from net2280 */
@@ -772,6 +875,21 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req)
start_queue (ep, tmp, req->td_dma);
}
+static inline void resume_dma(struct net2280_ep *ep)
+{
+ writel(readl(&ep->dma->dmactl) | (1 << DMA_ENABLE), &ep->dma->dmactl);
+
+ ep->dma_started = true;
+}
+
+static inline void ep_stop_dma(struct net2280_ep *ep)
+{
+ writel(readl(&ep->dma->dmactl) & ~(1 << DMA_ENABLE), &ep->dma->dmactl);
+ spin_stop_dma(ep->dma);
+
+ ep->dma_started = false;
+}
+
static inline void
queue_dma (struct net2280_ep *ep, struct net2280_request *req, int valid)
{
@@ -874,8 +992,23 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
/* kickstart this i/o queue? */
if (list_empty (&ep->queue) && !ep->stopped) {
+ /* DMA request while EP halted */
+ if (ep->dma &&
+ (readl(&ep->regs->ep_rsp) & (1 << CLEAR_ENDPOINT_HALT)) &&
+ (dev->pdev->vendor == 0x10b5)) {
+ int valid = 1;
+ if (ep->is_in) {
+ int expect;
+ expect = likely(req->req.zero ||
+ ((req->req.length %
+ ep->ep.maxpacket) != 0));
+ if (expect != ep->in_fifo_validate)
+ valid = 0;
+ }
+ queue_dma(ep, req, valid);
+ }
/* use DMA if the endpoint supports it, else pio */
- if (ep->dma)
+ else if (ep->dma)
start_dma (ep, req);
else {
/* maybe there's no control data, just status ack */
@@ -993,6 +1126,8 @@ static void scan_dma_completions (struct net2280_ep *ep)
} else if (!ep->is_in
&& (req->req.length % ep->ep.maxpacket) != 0) {
tmp = readl (&ep->regs->ep_stat);
+ if (ep->dev->pdev->vendor == 0x10b5)
+ return dma_done(ep, req, tmp, 0);
/* AVOID TROUBLE HERE by not issuing short reads from
* your gadget driver. That helps avoids errata 0121,
@@ -1079,7 +1214,7 @@ static void restart_dma (struct net2280_ep *ep)
start_queue (ep, dmactl, req->td_dma);
}
-static void abort_dma (struct net2280_ep *ep)
+static void abort_dma_228x(struct net2280_ep *ep)
{
/* abort the current transfer */
if (likely (!list_empty (&ep->queue))) {
@@ -1091,6 +1226,19 @@ static void abort_dma (struct net2280_ep *ep)
scan_dma_completions (ep);
}
+static void abort_dma_338x(struct net2280_ep *ep)
+{
+ writel((1 << DMA_ABORT), &ep->dma->dmastat);
+ spin_stop_dma(ep->dma);
+}
+
+static void abort_dma(struct net2280_ep *ep)
+{
+ if (ep->dev->pdev->vendor == 0x17cc)
+ return abort_dma_228x(ep);
+ return abort_dma_338x(ep);
+}
+
/* dequeue ALL requests */
static void nuke (struct net2280_ep *ep)
{
@@ -1244,6 +1392,9 @@ net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged)
ep->wedged = 1;
} else {
clear_halt (ep);
+ if (ep->dev->pdev->vendor == 0x10b5 &&
+ !list_empty(&ep->queue) && ep->td_dma)
+ restart_dma(ep);
ep->wedged = 0;
}
(void) readl (&ep->regs->ep_rsp);
@@ -1367,10 +1518,13 @@ static int net2280_set_selfpowered (struct usb_gadget *_gadget, int value)
spin_lock_irqsave (&dev->lock, flags);
tmp = readl (&dev->usb->usbctl);
- if (value)
+ if (value) {
tmp |= (1 << SELF_POWERED_STATUS);
- else
+ dev->selfpowered = 1;
+ } else {
tmp &= ~(1 << SELF_POWERED_STATUS);
+ dev->selfpowered = 0;
+ }
writel (tmp, &dev->usb->usbctl);
spin_unlock_irqrestore (&dev->lock, flags);
@@ -1504,14 +1658,14 @@ static ssize_t registers_show(struct device *_dev,
/* DMA Control Registers */
/* Configurable EP Control Registers */
- for (i = 0; i < 7; i++) {
+ for (i = 0; i < dev->n_ep; i++) {
struct net2280_ep *ep;
ep = &dev->ep [i];
if (i && !ep->desc)
continue;
- t1 = readl (&ep->regs->ep_cfg);
+ t1 = readl(&ep->cfg->ep_cfg);
t2 = readl (&ep->regs->ep_rsp) & 0xff;
t = scnprintf (next, size,
"\n%s\tcfg %05x rsp (%02x) %s%s%s%s%s%s%s%s"
@@ -1571,7 +1725,7 @@ static ssize_t registers_show(struct device *_dev,
t = scnprintf (next, size, "\nirqs: ");
size -= t;
next += t;
- for (i = 0; i < 7; i++) {
+ for (i = 0; i < dev->n_ep; i++) {
struct net2280_ep *ep;
ep = &dev->ep [i];
@@ -1606,7 +1760,7 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr,
size = PAGE_SIZE;
spin_lock_irqsave (&dev->lock, flags);
- for (i = 0; i < 7; i++) {
+ for (i = 0; i < dev->n_ep; i++) {
struct net2280_ep *ep = &dev->ep [i];
struct net2280_request *req;
int t;
@@ -1735,6 +1889,121 @@ static void set_fifo_mode (struct net2280 *dev, int mode)
list_add_tail (&dev->ep [6].ep.ep_list, &dev->gadget.ep_list);
}
+static void defect7374_disable_data_eps(struct net2280 *dev)
+{
+ /*
+ * For Defect 7374, disable data EPs (and more):
+ * - This phase undoes the earlier phase of the Defect 7374 workaround,
+ * returing ep regs back to normal.
+ */
+ struct net2280_ep *ep;
+ int i;
+ unsigned char ep_sel;
+ u32 tmp_reg;
+
+ for (i = 1; i < 5; i++) {
+ ep = &dev->ep[i];
+ writel(0, &ep->cfg->ep_cfg);
+ }
+
+ /* CSROUT, CSRIN, PCIOUT, PCIIN, STATIN, RCIN */
+ for (i = 0; i < 6; i++)
+ writel(0, &dev->dep[i].dep_cfg);
+
+ for (ep_sel = 0; ep_sel <= 21; ep_sel++) {
+ /* Select an endpoint for subsequent operations: */
+ tmp_reg = readl(&dev->plregs->pl_ep_ctrl);
+ writel(((tmp_reg & ~0x1f) | ep_sel), &dev->plregs->pl_ep_ctrl);
+
+ if (ep_sel < 2 || (ep_sel > 9 && ep_sel < 14) ||
+ ep_sel == 18 || ep_sel == 20)
+ continue;
+
+ /* Change settings on some selected endpoints */
+ tmp_reg = readl(&dev->plregs->pl_ep_cfg_4);
+ tmp_reg &= ~(1 << NON_CTRL_IN_TOLERATE_BAD_DIR);
+ writel(tmp_reg, &dev->plregs->pl_ep_cfg_4);
+ tmp_reg = readl(&dev->plregs->pl_ep_ctrl);
+ tmp_reg |= (1 << EP_INITIALIZED);
+ writel(tmp_reg, &dev->plregs->pl_ep_ctrl);
+ }
+}
+
+static void defect7374_enable_data_eps_zero(struct net2280 *dev)
+{
+ u32 tmp = 0, tmp_reg;
+ u32 fsmvalue, scratch;
+ int i;
+ unsigned char ep_sel;
+
+ scratch = get_idx_reg(dev->regs, SCRATCH);
+ fsmvalue = scratch & (0xf << DEFECT7374_FSM_FIELD);
+ scratch &= ~(0xf << DEFECT7374_FSM_FIELD);
+
+ /*See if firmware needs to set up for workaround*/
+ if (fsmvalue != DEFECT7374_FSM_SS_CONTROL_READ) {
+ WARNING(dev, "Operate Defect 7374 workaround soft this time");
+ WARNING(dev, "It will operate on cold-reboot and SS connect");
+
+ /*GPEPs:*/
+ tmp = ((0 << ENDPOINT_NUMBER) | (1 << ENDPOINT_DIRECTION) |
+ (2 << OUT_ENDPOINT_TYPE) | (2 << IN_ENDPOINT_TYPE) |
+ ((dev->enhanced_mode) ?
+ 1 << OUT_ENDPOINT_ENABLE : 1 << ENDPOINT_ENABLE) |
+ (1 << IN_ENDPOINT_ENABLE));
+
+ for (i = 1; i < 5; i++)
+ writel(tmp, &dev->ep[i].cfg->ep_cfg);
+
+ /* CSRIN, PCIIN, STATIN, RCIN*/
+ tmp = ((0 << ENDPOINT_NUMBER) | (1 << ENDPOINT_ENABLE));
+ writel(tmp, &dev->dep[1].dep_cfg);
+ writel(tmp, &dev->dep[3].dep_cfg);
+ writel(tmp, &dev->dep[4].dep_cfg);
+ writel(tmp, &dev->dep[5].dep_cfg);
+
+ /*Implemented for development and debug.
+ * Can be refined/tuned later.*/
+ for (ep_sel = 0; ep_sel <= 21; ep_sel++) {
+ /* Select an endpoint for subsequent operations: */
+ tmp_reg = readl(&dev->plregs->pl_ep_ctrl);
+ writel(((tmp_reg & ~0x1f) | ep_sel),
+ &dev->plregs->pl_ep_ctrl);
+
+ if (ep_sel == 1) {
+ tmp =
+ (readl(&dev->plregs->pl_ep_ctrl) |
+ (1 << CLEAR_ACK_ERROR_CODE) | 0);
+ writel(tmp, &dev->plregs->pl_ep_ctrl);
+ continue;
+ }
+
+ if (ep_sel == 0 || (ep_sel > 9 && ep_sel < 14) ||
+ ep_sel == 18 || ep_sel == 20)
+ continue;
+
+ tmp = (readl(&dev->plregs->pl_ep_cfg_4) |
+ (1 << NON_CTRL_IN_TOLERATE_BAD_DIR) | 0);
+ writel(tmp, &dev->plregs->pl_ep_cfg_4);
+
+ tmp = readl(&dev->plregs->pl_ep_ctrl) &
+ ~(1 << EP_INITIALIZED);
+ writel(tmp, &dev->plregs->pl_ep_ctrl);
+
+ }
+
+ /* Set FSM to focus on the first Control Read:
+ * - Tip: Connection speed is known upon the first
+ * setup request.*/
+ scratch |= DEFECT7374_FSM_WAITING_FOR_CONTROL_READ;
+ set_idx_reg(dev->regs, SCRATCH, scratch);
+
+ } else{
+ WARNING(dev, "Defect 7374 workaround soft will NOT operate");
+ WARNING(dev, "It will operate on cold-reboot and SS connect");
+ }
+}
+
/* keeping it simple:
* - one bus driver, initted first;
* - one function driver, initted second
@@ -1744,7 +2013,7 @@ static void set_fifo_mode (struct net2280 *dev, int mode)
* perhaps to bind specific drivers to specific devices.
*/
-static void usb_reset (struct net2280 *dev)
+static void usb_reset_228x(struct net2280 *dev)
{
u32 tmp;
@@ -1760,11 +2029,11 @@ static void usb_reset (struct net2280 *dev)
/* clear old dma and irq state */
for (tmp = 0; tmp < 4; tmp++) {
- struct net2280_ep *ep = &dev->ep [tmp + 1];
-
+ struct net2280_ep *ep = &dev->ep[tmp + 1];
if (ep->dma)
- abort_dma (ep);
+ abort_dma(ep);
}
+
writel (~0, &dev->regs->irqstat0),
writel (~(1 << SUSPEND_REQUEST_INTERRUPT), &dev->regs->irqstat1),
@@ -1780,7 +2049,67 @@ static void usb_reset (struct net2280 *dev)
set_fifo_mode (dev, (fifo_mode <= 2) ? fifo_mode : 0);
}
-static void usb_reinit (struct net2280 *dev)
+static void usb_reset_338x(struct net2280 *dev)
+{
+ u32 tmp;
+ u32 fsmvalue;
+
+ dev->gadget.speed = USB_SPEED_UNKNOWN;
+ (void)readl(&dev->usb->usbctl);
+
+ net2280_led_init(dev);
+
+ fsmvalue = get_idx_reg(dev->regs, SCRATCH) &
+ (0xf << DEFECT7374_FSM_FIELD);
+
+ /* See if firmware needs to set up for workaround: */
+ if (fsmvalue != DEFECT7374_FSM_SS_CONTROL_READ) {
+ INFO(dev, "%s: Defect 7374 FsmValue 0x%08x\n", __func__,
+ fsmvalue);
+ } else {
+ /* disable automatic responses, and irqs */
+ writel(0, &dev->usb->stdrsp);
+ writel(0, &dev->regs->pciirqenb0);
+ writel(0, &dev->regs->pciirqenb1);
+ }
+
+ /* clear old dma and irq state */
+ for (tmp = 0; tmp < 4; tmp++) {
+ struct net2280_ep *ep = &dev->ep[tmp + 1];
+
+ if (ep->dma)
+ abort_dma(ep);
+ }
+
+ writel(~0, &dev->regs->irqstat0), writel(~0, &dev->regs->irqstat1);
+
+ if (fsmvalue == DEFECT7374_FSM_SS_CONTROL_READ) {
+ /* reset, and enable pci */
+ tmp = readl(&dev->regs->devinit) |
+ (1 << PCI_ENABLE) |
+ (1 << FIFO_SOFT_RESET) |
+ (1 << USB_SOFT_RESET) |
+ (1 << M8051_RESET);
+
+ writel(tmp, &dev->regs->devinit);
+ }
+
+ /* always ep-{1,2,3,4} ... maybe not ep-3 or ep-4 */
+ INIT_LIST_HEAD(&dev->gadget.ep_list);
+
+ for (tmp = 1; tmp < dev->n_ep; tmp++)
+ list_add_tail(&dev->ep[tmp].ep.ep_list, &dev->gadget.ep_list);
+
+}
+
+static void usb_reset(struct net2280 *dev)
+{
+ if (dev->pdev->vendor == 0x17cc)
+ return usb_reset_228x(dev);
+ return usb_reset_338x(dev);
+}
+
+static void usb_reinit_228x(struct net2280 *dev)
{
u32 tmp;
int init_dma;
@@ -1803,7 +2132,8 @@ static void usb_reinit (struct net2280 *dev)
} else
ep->fifo_size = 64;
ep->regs = &dev->epregs [tmp];
- ep_reset (dev->regs, ep);
+ ep->cfg = &dev->epregs[tmp];
+ ep_reset_228x(dev->regs, ep);
}
usb_ep_set_maxpacket_limit(&dev->ep [0].ep, 64);
usb_ep_set_maxpacket_limit(&dev->ep [5].ep, 64);
@@ -1820,7 +2150,122 @@ static void usb_reinit (struct net2280 *dev)
writel (EP_DONTUSE, &dev->dep [tmp].dep_cfg);
}
-static void ep0_start (struct net2280 *dev)
+static void usb_reinit_338x(struct net2280 *dev)
+{
+ int init_dma;
+ int i;
+ u32 tmp, val;
+ u32 fsmvalue;
+ static const u32 ne[9] = { 0, 1, 2, 3, 4, 1, 2, 3, 4 };
+ static const u32 ep_reg_addr[9] = { 0x00, 0xC0, 0x00, 0xC0, 0x00,
+ 0x00, 0xC0, 0x00, 0xC0 };
+
+ /* use_dma changes are ignored till next device re-init */
+ init_dma = use_dma;
+
+ /* basic endpoint init */
+ for (i = 0; i < dev->n_ep; i++) {
+ struct net2280_ep *ep = &dev->ep[i];
+
+ ep->ep.name = ep_name[i];
+ ep->dev = dev;
+ ep->num = i;
+
+ if (i > 0 && i <= 4 && init_dma)
+ ep->dma = &dev->dma[i - 1];
+
+ if (dev->enhanced_mode) {
+ ep->cfg = &dev->epregs[ne[i]];
+ ep->regs = (struct net2280_ep_regs __iomem *)
+ (((void *)&dev->epregs[ne[i]]) +
+ ep_reg_addr[i]);
+ ep->fiforegs = &dev->fiforegs[i];
+ } else {
+ ep->cfg = &dev->epregs[i];
+ ep->regs = &dev->epregs[i];
+ ep->fiforegs = &dev->fiforegs[i];
+ }
+
+ ep->fifo_size = (i != 0) ? 2048 : 512;
+
+ ep_reset_338x(dev->regs, ep);
+ }
+ usb_ep_set_maxpacket_limit(&dev->ep[0].ep, 512);
+
+ dev->gadget.ep0 = &dev->ep[0].ep;
+ dev->ep[0].stopped = 0;
+
+ /* Link layer set up */
+ fsmvalue = get_idx_reg(dev->regs, SCRATCH) &
+ (0xf << DEFECT7374_FSM_FIELD);
+
+ /* See if driver needs to set up for workaround: */
+ if (fsmvalue != DEFECT7374_FSM_SS_CONTROL_READ)
+ INFO(dev, "%s: Defect 7374 FsmValue %08x\n",
+ __func__, fsmvalue);
+ else {
+ tmp = readl(&dev->usb_ext->usbctl2) &
+ ~((1 << U1_ENABLE) | (1 << U2_ENABLE) | (1 << LTM_ENABLE));
+ writel(tmp, &dev->usb_ext->usbctl2);
+ }
+
+ /* Hardware Defect and Workaround */
+ val = readl(&dev->ll_lfps_regs->ll_lfps_5);
+ val &= ~(0xf << TIMER_LFPS_6US);
+ val |= 0x5 << TIMER_LFPS_6US;
+ writel(val, &dev->ll_lfps_regs->ll_lfps_5);
+
+ val = readl(&dev->ll_lfps_regs->ll_lfps_6);
+ val &= ~(0xffff << TIMER_LFPS_80US);
+ val |= 0x0100 << TIMER_LFPS_80US;
+ writel(val, &dev->ll_lfps_regs->ll_lfps_6);
+
+ /*
+ * AA_AB Errata. Issue 4. Workaround for SuperSpeed USB
+ * Hot Reset Exit Handshake may Fail in Specific Case using
+ * Default Register Settings. Workaround for Enumeration test.
+ */
+ val = readl(&dev->ll_tsn_regs->ll_tsn_counters_2);
+ val &= ~(0x1f << HOT_TX_NORESET_TS2);
+ val |= 0x10 << HOT_TX_NORESET_TS2;
+ writel(val, &dev->ll_tsn_regs->ll_tsn_counters_2);
+
+ val = readl(&dev->ll_tsn_regs->ll_tsn_counters_3);
+ val &= ~(0x1f << HOT_RX_RESET_TS2);
+ val |= 0x3 << HOT_RX_RESET_TS2;
+ writel(val, &dev->ll_tsn_regs->ll_tsn_counters_3);
+
+ /*
+ * Set Recovery Idle to Recover bit:
+ * - On SS connections, setting Recovery Idle to Recover Fmw improves
+ * link robustness with various hosts and hubs.
+ * - It is safe to set for all connection speeds; all chip revisions.
+ * - R-M-W to leave other bits undisturbed.
+ * - Reference PLX TT-7372
+ */
+ val = readl(&dev->ll_chicken_reg->ll_tsn_chicken_bit);
+ val |= (1 << RECOVERY_IDLE_TO_RECOVER_FMW);
+ writel(val, &dev->ll_chicken_reg->ll_tsn_chicken_bit);
+
+ INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
+
+ /* disable dedicated endpoints */
+ writel(0x0D, &dev->dep[0].dep_cfg);
+ writel(0x0D, &dev->dep[1].dep_cfg);
+ writel(0x0E, &dev->dep[2].dep_cfg);
+ writel(0x0E, &dev->dep[3].dep_cfg);
+ writel(0x0F, &dev->dep[4].dep_cfg);
+ writel(0x0C, &dev->dep[5].dep_cfg);
+}
+
+static void usb_reinit(struct net2280 *dev)
+{
+ if (dev->pdev->vendor == 0x17cc)
+ return usb_reinit_228x(dev);
+ return usb_reinit_338x(dev);
+}
+
+static void ep0_start_228x(struct net2280 *dev)
{
writel ( (1 << CLEAR_EP_HIDE_STATUS_PHASE)
| (1 << CLEAR_NAK_OUT_PACKETS)
@@ -1863,6 +2308,61 @@ static void ep0_start (struct net2280 *dev)
(void) readl (&dev->usb->usbctl);
}
+static void ep0_start_338x(struct net2280 *dev)
+{
+ u32 fsmvalue;
+
+ fsmvalue = get_idx_reg(dev->regs, SCRATCH) &
+ (0xf << DEFECT7374_FSM_FIELD);
+
+ if (fsmvalue != DEFECT7374_FSM_SS_CONTROL_READ)
+ INFO(dev, "%s: Defect 7374 FsmValue %08x\n", __func__,
+ fsmvalue);
+ else
+ writel((1 << CLEAR_NAK_OUT_PACKETS_MODE) |
+ (1 << SET_EP_HIDE_STATUS_PHASE),
+ &dev->epregs[0].ep_rsp);
+
+ /*
+ * hardware optionally handles a bunch of standard requests
+ * that the API hides from drivers anyway. have it do so.
+ * endpoint status/features are handled in software, to
+ * help pass tests for some dubious behavior.
+ */
+ writel((1 << SET_ISOCHRONOUS_DELAY) |
+ (1 << SET_SEL) |
+ (1 << SET_TEST_MODE) |
+ (1 << SET_ADDRESS) |
+ (1 << GET_INTERFACE_STATUS) |
+ (1 << GET_DEVICE_STATUS),
+ &dev->usb->stdrsp);
+ dev->wakeup_enable = 1;
+ writel((1 << USB_ROOT_PORT_WAKEUP_ENABLE) |
+ (dev->softconnect << USB_DETECT_ENABLE) |
+ (1 << DEVICE_REMOTE_WAKEUP_ENABLE),
+ &dev->usb->usbctl);
+
+ /* enable irqs so we can see ep0 and general operation */
+ writel((1 << SETUP_PACKET_INTERRUPT_ENABLE) |
+ (1 << ENDPOINT_0_INTERRUPT_ENABLE)
+ , &dev->regs->pciirqenb0);
+ writel((1 << PCI_INTERRUPT_ENABLE) |
+ (1 << ROOT_PORT_RESET_INTERRUPT_ENABLE) |
+ (1 << SUSPEND_REQUEST_CHANGE_INTERRUPT_ENABLE) |
+ (1 << VBUS_INTERRUPT_ENABLE),
+ &dev->regs->pciirqenb1);
+
+ /* don't leave any writes posted */
+ (void)readl(&dev->usb->usbctl);
+}
+
+static void ep0_start(struct net2280 *dev)
+{
+ if (dev->pdev->vendor == 0x17cc)
+ return ep0_start_228x(dev);
+ return ep0_start_338x(dev);
+}
+
/* when a driver is successfully registered, it will receive
* control requests including set_configuration(), which enables
* non-control requests. then usb traffic follows until a
@@ -1886,7 +2386,7 @@ static int net2280_start(struct usb_gadget *_gadget,
dev = container_of (_gadget, struct net2280, gadget);
- for (i = 0; i < 7; i++)
+ for (i = 0; i < dev->n_ep; i++)
dev->ep [i].irqs = 0;
/* hook up the driver ... */
@@ -1900,13 +2400,17 @@ static int net2280_start(struct usb_gadget *_gadget,
if (retval) goto err_func;
/* Enable force-full-speed testing mode, if desired */
- if (full_speed)
+ if (full_speed && dev->pdev->vendor == 0x17cc)
writel(1 << FORCE_FULL_SPEED_MODE, &dev->usb->xcvrdiag);
/* ... then enable host detection and ep0; and we're ready
* for set_configuration as well as eventual disconnect.
*/
net2280_led_active (dev, 1);
+
+ if (dev->pdev->vendor == 0x10b5)
+ defect7374_enable_data_eps_zero(dev);
+
ep0_start (dev);
DEBUG (dev, "%s ready, usbctl %08x stdrsp %08x\n",
@@ -1937,7 +2441,7 @@ stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver)
* and kill any outstanding requests.
*/
usb_reset (dev);
- for (i = 0; i < 7; i++)
+ for (i = 0; i < dev->n_ep; i++)
nuke (&dev->ep [i]);
/* report disconnect; the driver is already quiesced */
@@ -1967,7 +2471,8 @@ static int net2280_stop(struct usb_gadget *_gadget,
net2280_led_active (dev, 0);
/* Disable full-speed test mode */
- writel(0, &dev->usb->xcvrdiag);
+ if (dev->pdev->vendor == 0x17cc)
+ writel(0, &dev->usb->xcvrdiag);
device_remove_file (&dev->pdev->dev, &dev_attr_function);
device_remove_file (&dev->pdev->dev, &dev_attr_queues);
@@ -2219,6 +2724,350 @@ get_ep_by_addr (struct net2280 *dev, u16 wIndex)
return NULL;
}
+static void defect7374_workaround(struct net2280 *dev, struct usb_ctrlrequest r)
+{
+ u32 scratch, fsmvalue;
+ u32 ack_wait_timeout, state;
+
+ /* Workaround for Defect 7374 (U1/U2 erroneously rejected): */
+ scratch = get_idx_reg(dev->regs, SCRATCH);
+ fsmvalue = scratch & (0xf << DEFECT7374_FSM_FIELD);
+ scratch &= ~(0xf << DEFECT7374_FSM_FIELD);
+
+ if (!((fsmvalue == DEFECT7374_FSM_WAITING_FOR_CONTROL_READ) &&
+ (r.bRequestType & USB_DIR_IN)))
+ return;
+
+ /* This is the first Control Read for this connection: */
+ if (!(readl(&dev->usb->usbstat) & (1 << SUPER_SPEED_MODE))) {
+ /*
+ * Connection is NOT SS:
+ * - Connection must be FS or HS.
+ * - This FSM state should allow workaround software to
+ * run after the next USB connection.
+ */
+ scratch |= DEFECT7374_FSM_NON_SS_CONTROL_READ;
+ goto restore_data_eps;
+ }
+
+ /* Connection is SS: */
+ for (ack_wait_timeout = 0;
+ ack_wait_timeout < DEFECT_7374_NUMBEROF_MAX_WAIT_LOOPS;
+ ack_wait_timeout++) {
+
+ state = readl(&dev->plregs->pl_ep_status_1)
+ & (0xff << STATE);
+ if ((state >= (ACK_GOOD_NORMAL << STATE)) &&
+ (state <= (ACK_GOOD_MORE_ACKS_TO_COME << STATE))) {
+ scratch |= DEFECT7374_FSM_SS_CONTROL_READ;
+ break;
+ }
+
+ /*
+ * We have not yet received host's Data Phase ACK
+ * - Wait and try again.
+ */
+ udelay(DEFECT_7374_PROCESSOR_WAIT_TIME);
+
+ continue;
+ }
+
+
+ if (ack_wait_timeout >= DEFECT_7374_NUMBEROF_MAX_WAIT_LOOPS) {
+ ERROR(dev, "FAIL: Defect 7374 workaround waited but failed "
+ "to detect SS host's data phase ACK.");
+ ERROR(dev, "PL_EP_STATUS_1(23:16):.Expected from 0x11 to 0x16"
+ "got 0x%2.2x.\n", state >> STATE);
+ } else {
+ WARNING(dev, "INFO: Defect 7374 workaround waited about\n"
+ "%duSec for Control Read Data Phase ACK\n",
+ DEFECT_7374_PROCESSOR_WAIT_TIME * ack_wait_timeout);
+ }
+
+restore_data_eps:
+ /*
+ * Restore data EPs to their pre-workaround settings (disabled,
+ * initialized, and other details).
+ */
+ defect7374_disable_data_eps(dev);
+
+ set_idx_reg(dev->regs, SCRATCH, scratch);
+
+ return;
+}
+
+static void ep_stall(struct net2280_ep *ep, int stall)
+{
+ struct net2280 *dev = ep->dev;
+ u32 val;
+ static const u32 ep_pl[9] = { 0, 3, 4, 7, 8, 2, 5, 6, 9 };
+
+ if (stall) {
+ writel((1 << SET_ENDPOINT_HALT) |
+ /* (1 << SET_NAK_PACKETS) | */
+ (1 << CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE),
+ &ep->regs->ep_rsp);
+ ep->is_halt = 1;
+ } else {
+ if (dev->gadget.speed == USB_SPEED_SUPER) {
+ /*
+ * Workaround for SS SeqNum not cleared via
+ * Endpoint Halt (Clear) bit. select endpoint
+ */
+ val = readl(&dev->plregs->pl_ep_ctrl);
+ val = (val & ~0x1f) | ep_pl[ep->num];
+ writel(val, &dev->plregs->pl_ep_ctrl);
+
+ val |= (1 << SEQUENCE_NUMBER_RESET);
+ writel(val, &dev->plregs->pl_ep_ctrl);
+ }
+ val = readl(&ep->regs->ep_rsp);
+ val |= (1 << CLEAR_ENDPOINT_HALT) |
+ (1 << CLEAR_ENDPOINT_TOGGLE);
+ writel(val
+ /* | (1 << CLEAR_NAK_PACKETS)*/
+ , &ep->regs->ep_rsp);
+ ep->is_halt = 0;
+ val = readl(&ep->regs->ep_rsp);
+ }
+}
+
+static void ep_stdrsp(struct net2280_ep *ep, int value, int wedged)
+{
+ /* set/clear, then synch memory views with the device */
+ if (value) {
+ ep->stopped = 1;
+ if (ep->num == 0)
+ ep->dev->protocol_stall = 1;
+ else {
+ if (ep->dma)
+ ep_stop_dma(ep);
+ ep_stall(ep, true);
+ }
+
+ if (wedged)
+ ep->wedged = 1;
+ } else {
+ ep->stopped = 0;
+ ep->wedged = 0;
+
+ ep_stall(ep, false);
+
+ /* Flush the queue */
+ if (!list_empty(&ep->queue)) {
+ struct net2280_request *req =
+ list_entry(ep->queue.next, struct net2280_request,
+ queue);
+ if (ep->dma)
+ resume_dma(ep);
+ else {
+ if (ep->is_in)
+ write_fifo(ep, &req->req);
+ else {
+ if (read_fifo(ep, req))
+ done(ep, req, 0);
+ }
+ }
+ }
+ }
+}
+
+static void handle_stat0_irqs_superspeed(struct net2280 *dev,
+ struct net2280_ep *ep, struct usb_ctrlrequest r)
+{
+ int tmp = 0;
+
+#define w_value le16_to_cpu(r.wValue)
+#define w_index le16_to_cpu(r.wIndex)
+#define w_length le16_to_cpu(r.wLength)
+
+ switch (r.bRequest) {
+ struct net2280_ep *e;
+ u16 status;
+
+ case USB_REQ_SET_CONFIGURATION:
+ dev->addressed_state = !w_value;
+ goto usb3_delegate;
+
+ case USB_REQ_GET_STATUS:
+ switch (r.bRequestType) {
+ case (USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE):
+ status = dev->wakeup_enable ? 0x02 : 0x00;
+ if (dev->selfpowered)
+ status |= 1 << 0;
+ status |= (dev->u1_enable << 2 | dev->u2_enable << 3 |
+ dev->ltm_enable << 4);
+ writel(0, &dev->epregs[0].ep_irqenb);
+ set_fifo_bytecount(ep, sizeof(status));
+ writel((__force u32) status, &dev->epregs[0].ep_data);
+ allow_status_338x(ep);
+ break;
+
+ case (USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_ENDPOINT):
+ e = get_ep_by_addr(dev, w_index);
+ if (!e)
+ goto do_stall3;
+ status = readl(&e->regs->ep_rsp) &
+ (1 << CLEAR_ENDPOINT_HALT);
+ writel(0, &dev->epregs[0].ep_irqenb);
+ set_fifo_bytecount(ep, sizeof(status));
+ writel((__force u32) status, &dev->epregs[0].ep_data);
+ allow_status_338x(ep);
+ break;
+
+ default:
+ goto usb3_delegate;
+ }
+ break;
+
+ case USB_REQ_CLEAR_FEATURE:
+ switch (r.bRequestType) {
+ case (USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE):
+ if (!dev->addressed_state) {
+ switch (w_value) {
+ case USB_DEVICE_U1_ENABLE:
+ dev->u1_enable = 0;
+ writel(readl(&dev->usb_ext->usbctl2) &
+ ~(1 << U1_ENABLE),
+ &dev->usb_ext->usbctl2);
+ allow_status_338x(ep);
+ goto next_endpoints3;
+
+ case USB_DEVICE_U2_ENABLE:
+ dev->u2_enable = 0;
+ writel(readl(&dev->usb_ext->usbctl2) &
+ ~(1 << U2_ENABLE),
+ &dev->usb_ext->usbctl2);
+ allow_status_338x(ep);
+ goto next_endpoints3;
+
+ case USB_DEVICE_LTM_ENABLE:
+ dev->ltm_enable = 0;
+ writel(readl(&dev->usb_ext->usbctl2) &
+ ~(1 << LTM_ENABLE),
+ &dev->usb_ext->usbctl2);
+ allow_status_338x(ep);
+ goto next_endpoints3;
+
+ default:
+ break;
+ }
+ }
+ if (w_value == USB_DEVICE_REMOTE_WAKEUP) {
+ dev->wakeup_enable = 0;
+ writel(readl(&dev->usb->usbctl) &
+ ~(1 << DEVICE_REMOTE_WAKEUP_ENABLE),
+ &dev->usb->usbctl);
+ allow_status_338x(ep);
+ break;
+ }
+ goto usb3_delegate;
+
+ case (USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_ENDPOINT):
+ e = get_ep_by_addr(dev, w_index);
+ if (!e)
+ goto do_stall3;
+ if (w_value != USB_ENDPOINT_HALT)
+ goto do_stall3;
+ VDEBUG(dev, "%s clear halt\n", e->ep.name);
+ ep_stall(e, false);
+ if (!list_empty(&e->queue) && e->td_dma)
+ restart_dma(e);
+ allow_status(ep);
+ ep->stopped = 1;
+ break;
+
+ default:
+ goto usb3_delegate;
+ }
+ break;
+ case USB_REQ_SET_FEATURE:
+ switch (r.bRequestType) {
+ case (USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE):
+ if (!dev->addressed_state) {
+ switch (w_value) {
+ case USB_DEVICE_U1_ENABLE:
+ dev->u1_enable = 1;
+ writel(readl(&dev->usb_ext->usbctl2) |
+ (1 << U1_ENABLE),
+ &dev->usb_ext->usbctl2);
+ allow_status_338x(ep);
+ goto next_endpoints3;
+
+ case USB_DEVICE_U2_ENABLE:
+ dev->u2_enable = 1;
+ writel(readl(&dev->usb_ext->usbctl2) |
+ (1 << U2_ENABLE),
+ &dev->usb_ext->usbctl2);
+ allow_status_338x(ep);
+ goto next_endpoints3;
+
+ case USB_DEVICE_LTM_ENABLE:
+ dev->ltm_enable = 1;
+ writel(readl(&dev->usb_ext->usbctl2) |
+ (1 << LTM_ENABLE),
+ &dev->usb_ext->usbctl2);
+ allow_status_338x(ep);
+ goto next_endpoints3;
+ default:
+ break;
+ }
+ }
+
+ if (w_value == USB_DEVICE_REMOTE_WAKEUP) {
+ dev->wakeup_enable = 1;
+ writel(readl(&dev->usb->usbctl) |
+ (1 << DEVICE_REMOTE_WAKEUP_ENABLE),
+ &dev->usb->usbctl);
+ allow_status_338x(ep);
+ break;
+ }
+ goto usb3_delegate;
+
+ case (USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_ENDPOINT):
+ e = get_ep_by_addr(dev, w_index);
+ if (!e || (w_value != USB_ENDPOINT_HALT))
+ goto do_stall3;
+ ep_stdrsp(e, true, false);
+ allow_status_338x(ep);
+ break;
+
+ default:
+ goto usb3_delegate;
+ }
+
+ break;
+ default:
+
+usb3_delegate:
+ VDEBUG(dev, "setup %02x.%02x v%04x i%04x l%04x ep_cfg %08x\n",
+ r.bRequestType, r.bRequest,
+ w_value, w_index, w_length,
+ readl(&ep->cfg->ep_cfg));
+
+ ep->responded = 0;
+ spin_unlock(&dev->lock);
+ tmp = dev->driver->setup(&dev->gadget, &r);
+ spin_lock(&dev->lock);
+ }
+do_stall3:
+ if (tmp < 0) {
+ VDEBUG(dev, "req %02x.%02x protocol STALL; stat %d\n",
+ r.bRequestType, r.bRequest, tmp);
+ dev->protocol_stall = 1;
+ /* TD 9.9 Halt Endpoint test. TD 9.22 Set feature test */
+ ep_stall(ep, true);
+ }
+
+next_endpoints3:
+
+#undef w_value
+#undef w_index
+#undef w_length
+
+ return;
+}
+
static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
{
struct net2280_ep *ep;
@@ -2240,10 +3089,20 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
struct net2280_request *req;
if (dev->gadget.speed == USB_SPEED_UNKNOWN) {
- if (readl (&dev->usb->usbstat) & (1 << HIGH_SPEED))
+ u32 val = readl(&dev->usb->usbstat);
+ if (val & (1 << SUPER_SPEED)) {
+ dev->gadget.speed = USB_SPEED_SUPER;
+ usb_ep_set_maxpacket_limit(&dev->ep[0].ep,
+ EP0_SS_MAX_PACKET_SIZE);
+ } else if (val & (1 << HIGH_SPEED)) {
dev->gadget.speed = USB_SPEED_HIGH;
- else
+ usb_ep_set_maxpacket_limit(&dev->ep[0].ep,
+ EP0_HS_MAX_PACKET_SIZE);
+ } else {
dev->gadget.speed = USB_SPEED_FULL;
+ usb_ep_set_maxpacket_limit(&dev->ep[0].ep,
+ EP0_HS_MAX_PACKET_SIZE);
+ }
net2280_led_speed (dev, dev->gadget.speed);
DEBUG(dev, "%s\n", usb_speed_string(dev->gadget.speed));
}
@@ -2261,32 +3120,38 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
}
ep->stopped = 0;
dev->protocol_stall = 0;
-
- if (ep->dev->pdev->device == 0x2280)
- tmp = (1 << FIFO_OVERFLOW)
- | (1 << FIFO_UNDERFLOW);
- else
- tmp = 0;
-
- writel (tmp | (1 << TIMEOUT)
- | (1 << USB_STALL_SENT)
- | (1 << USB_IN_NAK_SENT)
- | (1 << USB_IN_ACK_RCVD)
- | (1 << USB_OUT_PING_NAK_SENT)
- | (1 << USB_OUT_ACK_SENT)
- | (1 << SHORT_PACKET_OUT_DONE_INTERRUPT)
- | (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT)
- | (1 << DATA_PACKET_RECEIVED_INTERRUPT)
- | (1 << DATA_PACKET_TRANSMITTED_INTERRUPT)
- | (1 << DATA_OUT_PING_TOKEN_INTERRUPT)
- | (1 << DATA_IN_TOKEN_INTERRUPT)
- , &ep->regs->ep_stat);
- u.raw [0] = readl (&dev->usb->setup0123);
- u.raw [1] = readl (&dev->usb->setup4567);
+ if (dev->pdev->vendor == 0x10b5)
+ ep->is_halt = 0;
+ else{
+ if (ep->dev->pdev->device == 0x2280)
+ tmp = (1 << FIFO_OVERFLOW) |
+ (1 << FIFO_UNDERFLOW);
+ else
+ tmp = 0;
+
+ writel(tmp | (1 << TIMEOUT) |
+ (1 << USB_STALL_SENT) |
+ (1 << USB_IN_NAK_SENT) |
+ (1 << USB_IN_ACK_RCVD) |
+ (1 << USB_OUT_PING_NAK_SENT) |
+ (1 << USB_OUT_ACK_SENT) |
+ (1 << SHORT_PACKET_OUT_DONE_INTERRUPT) |
+ (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT) |
+ (1 << DATA_PACKET_RECEIVED_INTERRUPT) |
+ (1 << DATA_PACKET_TRANSMITTED_INTERRUPT) |
+ (1 << DATA_OUT_PING_TOKEN_INTERRUPT) |
+ (1 << DATA_IN_TOKEN_INTERRUPT)
+ , &ep->regs->ep_stat);
+ }
+ u.raw[0] = readl(&dev->usb->setup0123);
+ u.raw[1] = readl(&dev->usb->setup4567);
cpu_to_le32s (&u.raw [0]);
cpu_to_le32s (&u.raw [1]);
+ if (dev->pdev->vendor == 0x10b5)
+ defect7374_workaround(dev, u.r);
+
tmp = 0;
#define w_value le16_to_cpu(u.r.wValue)
@@ -2318,6 +3183,12 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
* everything else goes uplevel to the gadget code.
*/
ep->responded = 1;
+
+ if (dev->gadget.speed == USB_SPEED_SUPER) {
+ handle_stat0_irqs_superspeed(dev, ep, u.r);
+ goto next_endpoints;
+ }
+
switch (u.r.bRequest) {
case USB_REQ_GET_STATUS: {
struct net2280_ep *e;
@@ -2360,8 +3231,11 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
VDEBUG(dev, "%s wedged, halt not cleared\n",
ep->ep.name);
} else {
- VDEBUG(dev, "%s clear halt\n", ep->ep.name);
+ VDEBUG(dev, "%s clear halt\n", e->ep.name);
clear_halt(e);
+ if (ep->dev->pdev->vendor == 0x10b5 &&
+ !list_empty(&e->queue) && e->td_dma)
+ restart_dma(e);
}
allow_status (ep);
goto next_endpoints;
@@ -2381,6 +3255,8 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
if (e->ep.name == ep0name)
goto do_stall;
set_halt (e);
+ if (dev->pdev->vendor == 0x10b5 && e->dma)
+ abort_dma(e);
allow_status (ep);
VDEBUG (dev, "%s set halt\n", ep->ep.name);
goto next_endpoints;
@@ -2392,7 +3268,7 @@ delegate:
"ep_cfg %08x\n",
u.r.bRequestType, u.r.bRequest,
w_value, w_index, w_length,
- readl (&ep->regs->ep_cfg));
+ readl(&ep->cfg->ep_cfg));
ep->responded = 0;
spin_unlock (&dev->lock);
tmp = dev->driver->setup (&dev->gadget, &u.r);
@@ -2455,7 +3331,7 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
/* after disconnect there's nothing else to do! */
tmp = (1 << VBUS_INTERRUPT) | (1 << ROOT_PORT_RESET_INTERRUPT);
- mask = (1 << HIGH_SPEED) | (1 << FULL_SPEED);
+ mask = (1 << SUPER_SPEED) | (1 << HIGH_SPEED) | (1 << FULL_SPEED);
/* VBUS disconnect is indicated by VBUS_PIN and VBUS_INTERRUPT set.
* Root Port Reset is indicated by ROOT_PORT_RESET_INTERRUPT set and
@@ -2546,12 +3422,19 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
tmp = readl (&dma->dmastat);
writel (tmp, &dma->dmastat);
+ /* dma sync*/
+ if (dev->pdev->vendor == 0x10b5) {
+ u32 r_dmacount = readl(&dma->dmacount);
+ if (!ep->is_in && (r_dmacount & 0x00FFFFFF) &&
+ (tmp & (1 << DMA_TRANSACTION_DONE_INTERRUPT)))
+ continue;
+ }
+
/* chaining should stop on abort, short OUT from fifo,
* or (stat0 codepath) short OUT transfer.
*/
if (!use_dma_chaining) {
- if ((tmp & (1 << DMA_TRANSACTION_DONE_INTERRUPT))
- == 0) {
+ if (!(tmp & (1 << DMA_TRANSACTION_DONE_INTERRUPT))) {
DEBUG (ep->dev, "%s no xact done? %08x\n",
ep->ep.name, tmp);
continue;
@@ -2625,7 +3508,8 @@ static irqreturn_t net2280_irq (int irq, void *_dev)
struct net2280 *dev = _dev;
/* shared interrupt, not ours */
- if (!(readl(&dev->regs->irqstat0) & (1 << INTA_ASSERTED)))
+ if (dev->pdev->vendor == 0x17cc &&
+ (!(readl(&dev->regs->irqstat0) & (1 << INTA_ASSERTED))))
return IRQ_NONE;
spin_lock (&dev->lock);
@@ -2636,6 +3520,13 @@ static irqreturn_t net2280_irq (int irq, void *_dev)
/* control requests and PIO */
handle_stat0_irqs (dev, readl (&dev->regs->irqstat0));
+ if (dev->pdev->vendor == 0x10b5) {
+ /* re-enable interrupt to trigger any possible new interrupt */
+ u32 pciirqenb1 = readl(&dev->regs->pciirqenb1);
+ writel(pciirqenb1 & 0x7FFFFFFF, &dev->regs->pciirqenb1);
+ writel(pciirqenb1, &dev->regs->pciirqenb1);
+ }
+
spin_unlock (&dev->lock);
return IRQ_HANDLED;
@@ -2674,6 +3565,8 @@ static void net2280_remove (struct pci_dev *pdev)
}
if (dev->got_irq)
free_irq (pdev->irq, dev);
+ if (use_msi && dev->pdev->vendor == 0x10b5)
+ pci_disable_msi(pdev);
if (dev->regs)
iounmap (dev->regs);
if (dev->region)
@@ -2708,7 +3601,8 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
spin_lock_init (&dev->lock);
dev->pdev = pdev;
dev->gadget.ops = &net2280_ops;
- dev->gadget.max_speed = USB_SPEED_HIGH;
+ dev->gadget.max_speed = (dev->pdev->vendor == 0x10b5) ?
+ USB_SPEED_SUPER : USB_SPEED_HIGH;
/* the "gadget" abstracts/virtualizes the controller */
dev->gadget.name = driver_name;
@@ -2750,8 +3644,39 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
dev->dep = (struct net2280_dep_regs __iomem *) (base + 0x0200);
dev->epregs = (struct net2280_ep_regs __iomem *) (base + 0x0300);
- /* put into initial config, link up all endpoints */
- writel (0, &dev->usb->usbctl);
+ if (dev->pdev->vendor == 0x10b5) {
+ u32 fsmvalue;
+ u32 usbstat;
+ dev->usb_ext = (struct usb338x_usb_ext_regs __iomem *)
+ (base + 0x00b4);
+ dev->fiforegs = (struct usb338x_fifo_regs __iomem *)
+ (base + 0x0500);
+ dev->llregs = (struct usb338x_ll_regs __iomem *)
+ (base + 0x0700);
+ dev->ll_lfps_regs = (struct usb338x_ll_lfps_regs __iomem *)
+ (base + 0x0748);
+ dev->ll_tsn_regs = (struct usb338x_ll_tsn_regs __iomem *)
+ (base + 0x077c);
+ dev->ll_chicken_reg = (struct usb338x_ll_chi_regs __iomem *)
+ (base + 0x079c);
+ dev->plregs = (struct usb338x_pl_regs __iomem *)
+ (base + 0x0800);
+ usbstat = readl(&dev->usb->usbstat);
+ dev->enhanced_mode = (usbstat & (1 << 11)) ? 1 : 0;
+ dev->n_ep = (dev->enhanced_mode) ? 9 : 5;
+ /* put into initial config, link up all endpoints */
+ fsmvalue = get_idx_reg(dev->regs, SCRATCH) &
+ (0xf << DEFECT7374_FSM_FIELD);
+ /* See if firmware needs to set up for workaround: */
+ if (fsmvalue == DEFECT7374_FSM_SS_CONTROL_READ)
+ writel(0, &dev->usb->usbctl);
+ } else{
+ dev->enhanced_mode = 0;
+ dev->n_ep = 7;
+ /* put into initial config, link up all endpoints */
+ writel(0, &dev->usb->usbctl);
+ }
+
usb_reset (dev);
usb_reinit (dev);
@@ -2762,6 +3687,10 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
goto done;
}
+ if (use_msi && dev->pdev->vendor == 0x10b5)
+ if (pci_enable_msi(pdev))
+ ERROR(dev, "Failed to enable MSI mode\n");
+
if (request_irq (pdev->irq, net2280_irq, IRQF_SHARED, driver_name, dev)
!= 0) {
ERROR (dev, "request interrupt %d failed\n", pdev->irq);
@@ -2797,7 +3726,8 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
}
/* enable lower-overhead pci memory bursts during DMA */
- writel ( (1 << DMA_MEMORY_WRITE_AND_INVALIDATE_ENABLE)
+ if (dev->pdev->vendor == 0x17cc)
+ writel((1 << DMA_MEMORY_WRITE_AND_INVALIDATE_ENABLE)
// 256 write retries may not be enough...
// | (1 << PCI_RETRY_ABORT_ENABLE)
| (1 << DMA_READ_MULTIPLE_ENABLE)
@@ -2814,10 +3744,10 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
INFO (dev, "%s\n", driver_desc);
INFO (dev, "irq %d, pci mem %p, chip rev %04x\n",
pdev->irq, base, dev->chiprev);
- INFO (dev, "version: " DRIVER_VERSION "; dma %s\n",
- use_dma
- ? (use_dma_chaining ? "chaining" : "enabled")
- : "disabled");
+ INFO(dev, "version: " DRIVER_VERSION "; dma %s %s\n",
+ use_dma ? (use_dma_chaining ? "chaining" : "enabled")
+ : "disabled",
+ dev->enhanced_mode ? "enhanced mode" : "legacy mode");
retval = device_create_file (&pdev->dev, &dev_attr_registers);
if (retval) goto done;
@@ -2849,7 +3779,8 @@ static void net2280_shutdown (struct pci_dev *pdev)
writel (0, &dev->usb->usbctl);
/* Disable full-speed test mode */
- writel(0, &dev->usb->xcvrdiag);
+ if (dev->pdev->vendor == 0x17cc)
+ writel(0, &dev->usb->xcvrdiag);
}
@@ -2869,8 +3800,24 @@ static const struct pci_device_id pci_ids [] = { {
.device = 0x2282,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
-
-}, { /* end: all zeroes */ }
+},
+ {
+ .class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe),
+ .class_mask = ~0,
+ .vendor = 0x10b5,
+ .device = 0x3380,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ },
+ {
+ .class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe),
+ .class_mask = ~0,
+ .vendor = 0x10b5,
+ .device = 0x3382,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ },
+{ /* end: all zeroes */ }
};
MODULE_DEVICE_TABLE (pci, pci_ids);
diff --git a/drivers/usb/gadget/net2280.h b/drivers/usb/gadget/net2280.h
index a844be0d683a..a257516abbd6 100644
--- a/drivers/usb/gadget/net2280.h
+++ b/drivers/usb/gadget/net2280.h
@@ -6,6 +6,7 @@
/*
* Copyright (C) 2002 NetChip Technology, Inc. (http://www.netchip.com)
* Copyright (C) 2003 David Brownell
+ * Copyright (C) 2014 Ricardo Ribalda - Qtechnology/AS
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -14,6 +15,7 @@
*/
#include <linux/usb/net2280.h>
+#include <linux/usb/usb338x.h>
/*-------------------------------------------------------------------------*/
@@ -59,13 +61,14 @@ set_idx_reg (struct net2280_regs __iomem *regs, u32 index, u32 value)
#define CHIPREV_1 0x0100
#define CHIPREV_1A 0x0110
-#ifdef __KERNEL__
+/* DEFECT 7374 */
+#define DEFECT_7374_NUMBEROF_MAX_WAIT_LOOPS 200
+#define DEFECT_7374_PROCESSOR_WAIT_TIME 10
-/* ep a-f highspeed and fullspeed maxpacket, addresses
- * computed from ep->num
- */
-#define REG_EP_MAXPKT(dev,num) (((num) + 1) * 0x10 + \
- (((dev)->gadget.speed == USB_SPEED_HIGH) ? 0 : 1))
+/* ep0 max packet size */
+#define EP0_SS_MAX_PACKET_SIZE 0x200
+#define EP0_HS_MAX_PACKET_SIZE 0x40
+#ifdef __KERNEL__
/*-------------------------------------------------------------------------*/
@@ -85,12 +88,15 @@ struct net2280_dma {
struct net2280_ep {
struct usb_ep ep;
+ struct net2280_ep_regs __iomem *cfg;
struct net2280_ep_regs __iomem *regs;
struct net2280_dma_regs __iomem *dma;
struct net2280_dma *dummy;
+ struct usb338x_fifo_regs __iomem *fiforegs;
dma_addr_t td_dma; /* of dummy */
struct net2280 *dev;
unsigned long irqs;
+ unsigned is_halt:1, dma_started:1;
/* analogous to a host-side qh */
struct list_head queue;
@@ -116,10 +122,19 @@ static inline void allow_status (struct net2280_ep *ep)
ep->stopped = 1;
}
-/* count (<= 4) bytes in the next fifo write will be valid */
-static inline void set_fifo_bytecount (struct net2280_ep *ep, unsigned count)
+static void allow_status_338x(struct net2280_ep *ep)
{
- writeb (count, 2 + (u8 __iomem *) &ep->regs->ep_cfg);
+ /*
+ * Control Status Phase Handshake was set by the chip when the setup
+ * packet arrived. While set, the chip automatically NAKs the host's
+ * Status Phase tokens.
+ */
+ writel(1 << CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE, &ep->regs->ep_rsp);
+
+ ep->stopped = 1;
+
+ /* TD 9.9 Halt Endpoint test. TD 9.22 set feature test. */
+ ep->responded = 0;
}
struct net2280_request {
@@ -135,23 +150,38 @@ struct net2280 {
/* each pci device provides one gadget, several endpoints */
struct usb_gadget gadget;
spinlock_t lock;
- struct net2280_ep ep [7];
+ struct net2280_ep ep[9];
struct usb_gadget_driver *driver;
unsigned enabled : 1,
protocol_stall : 1,
softconnect : 1,
got_irq : 1,
- region : 1;
+ region:1,
+ u1_enable:1,
+ u2_enable:1,
+ ltm_enable:1,
+ wakeup_enable:1,
+ selfpowered:1,
+ addressed_state:1;
u16 chiprev;
+ int enhanced_mode;
+ int n_ep;
/* pci state used to access those endpoints */
struct pci_dev *pdev;
struct net2280_regs __iomem *regs;
struct net2280_usb_regs __iomem *usb;
+ struct usb338x_usb_ext_regs __iomem *usb_ext;
struct net2280_pci_regs __iomem *pci;
struct net2280_dma_regs __iomem *dma;
struct net2280_dep_regs __iomem *dep;
struct net2280_ep_regs __iomem *epregs;
+ struct usb338x_fifo_regs __iomem *fiforegs;
+ struct usb338x_ll_regs __iomem *llregs;
+ struct usb338x_ll_lfps_regs __iomem *ll_lfps_regs;
+ struct usb338x_ll_tsn_regs __iomem *ll_tsn_regs;
+ struct usb338x_ll_chi_regs __iomem *ll_chicken_reg;
+ struct usb338x_pl_regs __iomem *plregs;
struct pci_pool *requests;
// statistics...
@@ -179,6 +209,43 @@ static inline void clear_halt (struct net2280_ep *ep)
, &ep->regs->ep_rsp);
}
+/*
+ * FSM value for Defect 7374 (U1U2 Test) is managed in
+ * chip's SCRATCH register:
+ */
+#define DEFECT7374_FSM_FIELD 28
+
+/* Waiting for Control Read:
+ * - A transition to this state indicates a fresh USB connection,
+ * before the first Setup Packet. The connection speed is not
+ * known. Firmware is waiting for the first Control Read.
+ * - Starting state: This state can be thought of as the FSM's typical
+ * starting state.
+ * - Tip: Upon the first SS Control Read the FSM never
+ * returns to this state.
+ */
+#define DEFECT7374_FSM_WAITING_FOR_CONTROL_READ (1 << DEFECT7374_FSM_FIELD)
+
+/* Non-SS Control Read:
+ * - A transition to this state indicates detection of the first HS
+ * or FS Control Read.
+ * - Tip: Upon the first SS Control Read the FSM never
+ * returns to this state.
+ */
+#define DEFECT7374_FSM_NON_SS_CONTROL_READ (2 << DEFECT7374_FSM_FIELD)
+
+/* SS Control Read:
+ * - A transition to this state indicates detection of the
+ * first SS Control Read.
+ * - This state indicates workaround completion. Workarounds no longer
+ * need to be applied (as long as the chip remains powered up).
+ * - Tip: Once in this state the FSM state does not change (until
+ * the chip's power is lost and restored).
+ * - This can be thought of as the final state of the FSM;
+ * the FSM 'locks-up' in this state until the chip loses power.
+ */
+#define DEFECT7374_FSM_SS_CONTROL_READ (3 << DEFECT7374_FSM_FIELD)
+
#ifdef USE_RDK_LEDS
static inline void net2280_led_init (struct net2280 *dev)
@@ -198,6 +265,9 @@ void net2280_led_speed (struct net2280 *dev, enum usb_device_speed speed)
{
u32 val = readl (&dev->regs->gpioctl);
switch (speed) {
+ case USB_SPEED_SUPER: /* green + red */
+ val |= (1 << GPIO0_DATA) | (1 << GPIO1_DATA);
+ break;
case USB_SPEED_HIGH: /* green */
val &= ~(1 << GPIO0_DATA);
val |= (1 << GPIO1_DATA);
@@ -271,6 +341,17 @@ static inline void net2280_led_shutdown (struct net2280 *dev)
/*-------------------------------------------------------------------------*/
+static inline void set_fifo_bytecount(struct net2280_ep *ep, unsigned count)
+{
+ if (ep->dev->pdev->vendor == 0x17cc)
+ writeb(count, 2 + (u8 __iomem *) &ep->regs->ep_cfg);
+ else{
+ u32 tmp = readl(&ep->cfg->ep_cfg) &
+ (~(0x07 << EP_FIFO_BYTE_COUNT));
+ writel(tmp | (count << EP_FIFO_BYTE_COUNT), &ep->cfg->ep_cfg);
+ }
+}
+
static inline void start_out_naking (struct net2280_ep *ep)
{
/* NOTE: hardware races lurk here, and PING protocol issues */
@@ -305,4 +386,22 @@ static inline void stop_out_naking (struct net2280_ep *ep)
writel ((1 << CLEAR_NAK_OUT_PACKETS), &ep->regs->ep_rsp);
}
+
+static inline void set_max_speed(struct net2280_ep *ep, u32 max)
+{
+ u32 reg;
+ static const u32 ep_enhanced[9] = { 0x10, 0x60, 0x30, 0x80,
+ 0x50, 0x20, 0x70, 0x40, 0x90 };
+
+ if (ep->dev->enhanced_mode)
+ reg = ep_enhanced[ep->num];
+ else{
+ reg = (ep->num + 1) * 0x10;
+ if (ep->dev->gadget.speed != USB_SPEED_HIGH)
+ reg += 1;
+ }
+
+ set_idx_reg(ep->dev->regs, reg, max);
+}
+
#endif /* __KERNEL__ */
generated by cgit v1.2.3 (git 2.39.0) at 2024-10-31 20:43:36 +0300