diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-28 11:35:41 -0700 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-28 11:35:41 -0700 |
commit | 357d596ea7bea5abf1479cc72ae5888c738717dd (patch) | |
tree | c61ad0150643091c406e4f35bed769bebffcabc9 /drivers/usb/gadget | |
parent | c624fa5e0ec09c99bff0ab7759fea55bb00d36c6 (diff) |
Revert "usb: gadget: net2280: Add support for PLX USB338X"
This reverts commit c4128cac3557ddd5fa972cb6511c426cd94a7ccd.
This should come through Felipe's tree first, and there was a bunch of
other patches that are needed after this one as well that I didn't have.
Cc: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/gadget')
-rw-r--r-- | drivers/usb/gadget/Kconfig | 10 | ||||
-rw-r--r-- | drivers/usb/gadget/net2280.c | 1115 | ||||
-rw-r--r-- | drivers/usb/gadget/net2280.h | 97 |
3 files changed, 91 insertions, 1131 deletions
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 49e434ec527..ba18e9c110c 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 / PLX USB338x" + tristate "NetChip 228x" depends on PCI help NetChip 2280 / 2282 is a PCI based USB peripheral controller which @@ -419,14 +419,6 @@ 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 87789c9bf7f..300b3a71383 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -18,9 +18,6 @@ * 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. */ @@ -28,14 +25,10 @@ /* * 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 @@ -68,8 +61,9 @@ #include <asm/irq.h> #include <asm/unaligned.h> -#define DRIVER_DESC "PLX NET228x/USB338x USB Peripheral Controller" -#define DRIVER_VERSION "2005 Sept 27/v3.0" + +#define DRIVER_DESC "PLX NET228x USB Peripheral Controller" +#define DRIVER_VERSION "2005 Sept 27" #define EP_DONTUSE 13 /* nonzero */ @@ -79,12 +73,11 @@ 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-g", "ep-h", + "ep-e", "ep-f", }; /* use_dma -- general goodness, fewer interrupts, less cpu load (vs PIO) @@ -97,12 +90,11 @@ 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 @@ -156,9 +148,6 @@ 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 }; - static const u32 ep_enhanced[9] = { 0x10, 0x60, 0x30, 0x80, - 0x50, 0x20, 0x70, 0x40, 0x90 }; ep = container_of (_ep, struct net2280_ep, ep); if (!_ep || !desc || ep->desc || _ep->name == ep0name @@ -172,20 +161,11 @@ 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 && (dev->pdev->vendor == 0x17cc)) + if (ep->num > 4 && max > 64) return -ERANGE; - spin_lock_irqsave (&dev->lock, flags); _ep->maxpacket = max & 0x7ff; ep->desc = desc; @@ -196,8 +176,7 @@ 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, (dev->enhanced_mode) ? ep_enhanced[ep->num] - : REG_EP_MAXPKT(dev, ep->num), max); + set_idx_reg (dev->regs, REG_EP_MAXPKT (dev, ep->num), max); /* FIFO lines can't go to different packets. PIO is ok, so * use it instead of troublesome (non-bulk) multi-packet DMA. @@ -220,43 +199,23 @@ 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_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); + if ((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; - /* 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(); + tmp <<= ENDPOINT_TYPE; + tmp |= desc->bEndpointAddress; + tmp |= (4 << ENDPOINT_BYTE_COUNT); /* default full fifo lines */ + tmp |= 1 << ENDPOINT_ENABLE; + 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) { @@ -267,13 +226,11 @@ 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->cfg->ep_cfg); + writel (tmp, &ep->regs->ep_cfg); /* enable irqs */ if (!ep->dma) { /* pio, per-packet */ - tmp = (dev->pdev->vendor == 0x17cc)?(1 << ep->num) - : (1 << ep_bit[ep->num]); - tmp |= readl(&dev->regs->pciirqenb0); + tmp = (1 << ep->num) | readl (&dev->regs->pciirqenb0); writel (tmp, &dev->regs->pciirqenb0); tmp = (1 << DATA_PACKET_RECEIVED_INTERRUPT_ENABLE) @@ -294,10 +251,8 @@ 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 = (dev->pdev->vendor == 0x17cc)?(1 << ep->num) - : (1 << ep_bit[ep->num]); - tmp |= readl(&dev->regs->pciirqenb0); - writel(tmp, &dev->regs->pciirqenb0); + tmp = (1 << ep->num) | readl (&dev->regs->pciirqenb0); + writel (tmp, &dev->regs->pciirqenb0); } } @@ -331,8 +286,7 @@ 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_228x(struct net2280_regs __iomem *regs, - struct net2280_ep *ep) +static void ep_reset (struct net2280_regs __iomem *regs, struct net2280_ep *ep) { u32 tmp; @@ -407,55 +361,6 @@ static void ep_reset_228x(struct net2280_regs __iomem *regs, /* 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(®s->pciirqenb0); - tmp &= ~(1 << ep_bit[ep->num]); - writel(tmp, ®s->pciirqenb0); - } else { - if (ep->num < 5) { - tmp = readl(®s->pciirqenb1); - tmp &= ~(1 << (8 + ep->num)); /* completion */ - writel(tmp, ®s->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) @@ -469,17 +374,13 @@ static int net2280_disable (struct usb_ep *_ep) spin_lock_irqsave (&ep->dev->lock, flags); nuke (ep); - - if (ep->dev->pdev->vendor == 0x10b5) - ep_reset_338x(ep->dev->regs, ep); - else - ep_reset_228x(ep->dev->regs, ep); + ep_reset (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->cfg->ep_cfg); + (void) readl (&ep->regs->ep_cfg); if (use_dma && !ep->dma && ep->num >= 1 && ep->num <= 4) ep->dma = &ep->dev->dma [ep->num - 1]; @@ -797,8 +698,6 @@ 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 */ @@ -873,21 +772,6 @@ 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) { @@ -990,23 +874,8 @@ 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 */ - else if (ep->dma) + if (ep->dma) start_dma (ep, req); else { /* maybe there's no control data, just status ack */ @@ -1124,8 +993,6 @@ 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, @@ -1212,7 +1079,7 @@ static void restart_dma (struct net2280_ep *ep) start_queue (ep, dmactl, req->td_dma); } -static void abort_dma_228x(struct net2280_ep *ep) +static void abort_dma (struct net2280_ep *ep) { /* abort the current transfer */ if (likely (!list_empty (&ep->queue))) { @@ -1224,19 +1091,6 @@ static void abort_dma_228x(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) { @@ -1390,9 +1244,6 @@ 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); @@ -1516,13 +1367,10 @@ 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); - dev->selfpowered = 1; - } else { + else tmp &= ~(1 << SELF_POWERED_STATUS); - dev->selfpowered = 0; - } writel (tmp, &dev->usb->usbctl); spin_unlock_irqrestore (&dev->lock, flags); @@ -1656,14 +1504,14 @@ static ssize_t registers_show(struct device *_dev, /* DMA Control Registers */ /* Configurable EP Control Registers */ - for (i = 0; i < dev->n_ep; i++) { + for (i = 0; i < 7; i++) { struct net2280_ep *ep; ep = &dev->ep [i]; if (i && !ep->desc) continue; - t1 = readl(&ep->cfg->ep_cfg); + t1 = readl (&ep->regs->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" @@ -1723,7 +1571,7 @@ static ssize_t registers_show(struct device *_dev, t = scnprintf (next, size, "\nirqs: "); size -= t; next += t; - for (i = 0; i < dev->n_ep; i++) { + for (i = 0; i < 7; i++) { struct net2280_ep *ep; ep = &dev->ep [i]; @@ -1758,7 +1606,7 @@ 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 < dev->n_ep; i++) { + for (i = 0; i < 7; i++) { struct net2280_ep *ep = &dev->ep [i]; struct net2280_request *req; int t; @@ -1887,121 +1735,6 @@ 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 @@ -2011,7 +1744,7 @@ static void defect7374_enable_data_eps_zero(struct net2280 *dev) * perhaps to bind specific drivers to specific devices. */ -static void usb_reset_228x(struct net2280 *dev) +static void usb_reset (struct net2280 *dev) { u32 tmp; @@ -2027,11 +1760,11 @@ static void usb_reset_228x(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), @@ -2047,67 +1780,7 @@ static void usb_reset_228x(struct net2280 *dev) set_fifo_mode (dev, (fifo_mode <= 2) ? fifo_mode : 0); } -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) +static void usb_reinit (struct net2280 *dev) { u32 tmp; int init_dma; @@ -2130,8 +1803,7 @@ static void usb_reinit_228x(struct net2280 *dev) } else ep->fifo_size = 64; ep->regs = &dev->epregs [tmp]; - ep->cfg = &dev->epregs[tmp]; - ep_reset_228x(dev->regs, ep); + ep_reset (dev->regs, ep); } usb_ep_set_maxpacket_limit(&dev->ep [0].ep, 64); usb_ep_set_maxpacket_limit(&dev->ep [5].ep, 64); @@ -2148,122 +1820,7 @@ static void usb_reinit_228x(struct net2280 *dev) writel (EP_DONTUSE, &dev->dep [tmp].dep_cfg); } -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) +static void ep0_start (struct net2280 *dev) { writel ( (1 << CLEAR_EP_HIDE_STATUS_PHASE) | (1 << CLEAR_NAK_OUT_PACKETS) @@ -2306,61 +1863,6 @@ static void ep0_start_228x(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 @@ -2384,7 +1886,7 @@ static int net2280_start(struct usb_gadget *_gadget, dev = container_of (_gadget, struct net2280, gadget); - for (i = 0; i < dev->n_ep; i++) + for (i = 0; i < 7; i++) dev->ep [i].irqs = 0; /* hook up the driver ... */ @@ -2398,17 +1900,13 @@ static int net2280_start(struct usb_gadget *_gadget, if (retval) goto err_func; /* Enable force-full-speed testing mode, if desired */ - if (full_speed && dev->pdev->vendor == 0x17cc) + if (full_speed) 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", @@ -2439,7 +1937,7 @@ stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver) * and kill any outstanding requests. */ usb_reset (dev); - for (i = 0; i < dev->n_ep; i++) + for (i = 0; i < 7; i++) nuke (&dev->ep [i]); /* report disconnect; the driver is already quiesced */ @@ -2469,8 +1967,7 @@ static int net2280_stop(struct usb_gadget *_gadget, net2280_led_active (dev, 0); /* Disable full-speed test mode */ - if (dev->pdev->vendor == 0x17cc) - writel(0, &dev->usb->xcvrdiag); + writel(0, &dev->usb->xcvrdiag); device_remove_file (&dev->pdev->dev, &dev_attr_function); device_remove_file (&dev->pdev->dev, &dev_attr_queues); @@ -2722,350 +2219,6 @@ 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"); - ERROR(dev, "to detect SS host's data phase ACK."); - ERROR(dev, "PL_EP_STATUS_1(23:16):.Expected from 0x11 to 0x16"); - ERROR(dev, "got 0x%2.2x.\n", state >> STATE); - } else { - WARNING(dev, "INFO: Defect 7374 workaround waited about\n"); - WARNING(dev, "%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; @@ -3087,20 +2240,10 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) struct net2280_request *req; if (dev->gadget.speed == USB_SPEED_UNKNOWN) { - 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)) { + if (readl (&dev->usb->usbstat) & (1 << HIGH_SPEED)) dev->gadget.speed = USB_SPEED_HIGH; - usb_ep_set_maxpacket_limit(&dev->ep[0].ep, - EP0_HS_MAX_PACKET_SIZE); - } else { + 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)); } @@ -3118,38 +2261,32 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) } ep->stopped = 0; dev->protocol_stall = 0; - 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); + + 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) @@ -3181,12 +2318,6 @@ 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; @@ -3229,11 +2360,8 @@ 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", e->ep.name); + VDEBUG(dev, "%s clear halt\n", ep->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; @@ -3253,8 +2381,6 @@ 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; @@ -3266,7 +2392,7 @@ delegate: "ep_cfg %08x\n", u.r.bRequestType, u.r.bRequest, w_value, w_index, w_length, - readl(&ep->cfg->ep_cfg)); + readl (&ep->regs->ep_cfg)); ep->responded = 0; spin_unlock (&dev->lock); tmp = dev->driver->setup (&dev->gadget, &u.r); @@ -3329,7 +2455,7 @@ 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 << SUPER_SPEED) | (1 << HIGH_SPEED) | (1 << FULL_SPEED); + mask = (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 @@ -3420,19 +2546,12 @@ 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))) { + if ((tmp & (1 << DMA_TRANSACTION_DONE_INTERRUPT)) + == 0) { DEBUG (ep->dev, "%s no xact done? %08x\n", ep->ep.name, tmp); continue; @@ -3506,8 +2625,7 @@ static irqreturn_t net2280_irq (int irq, void *_dev) struct net2280 *dev = _dev; /* shared interrupt, not ours */ - if (dev->pdev->vendor == 0x17cc && - (!(readl(&dev->regs->irqstat0) & (1 << INTA_ASSERTED)))) + if (!(readl(&dev->regs->irqstat0) & (1 << INTA_ASSERTED))) return IRQ_NONE; spin_lock (&dev->lock); @@ -3518,13 +2636,6 @@ 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; @@ -3563,8 +2674,6 @@ 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) @@ -3599,8 +2708,7 @@ 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 = (dev->pdev->vendor == 0x10b5) ? - USB_SPEED_SUPER : USB_SPEED_HIGH; + dev->gadget.max_speed = USB_SPEED_HIGH; /* the "gadget" abstracts/virtualizes the controller */ dev->gadget.name = driver_name; @@ -3642,39 +2750,8 @@ 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); - 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); - } - + /* put into initial config, link up all endpoints */ + writel (0, &dev->usb->usbctl); usb_reset (dev); usb_reinit (dev); @@ -3685,10 +2762,6 @@ 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); @@ -3724,8 +2797,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) } /* enable lower-overhead pci memory bursts during DMA */ - if (dev->pdev->vendor == 0x17cc) - writel((1 << DMA_MEMORY_WRITE_AND_INVALIDATE_ENABLE) + 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) @@ -3742,10 +2814,10 @@ 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 %s\n", - use_dma ? (use_dma_chaining ? "chaining" : "enabled") - : "disabled", - dev->enhanced_mode ? "enhanced mode" : "legacy mode"); + INFO (dev, "version: " DRIVER_VERSION "; dma %s\n", + use_dma + ? (use_dma_chaining ? "chaining" : "enabled") + : "disabled"); retval = device_create_file (&pdev->dev, &dev_attr_registers); if (retval) goto done; @@ -3777,8 +2849,7 @@ static void net2280_shutdown (struct pci_dev *pdev) writel (0, &dev->usb->usbctl); /* Disable full-speed test mode */ - if (dev->pdev->vendor == 0x17cc) - writel(0, &dev->usb->xcvrdiag); + writel(0, &dev->usb->xcvrdiag); } @@ -3798,24 +2869,8 @@ static const struct pci_device_id pci_ids [] = { { .device = 0x2282, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, -}, - { - .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 */ } + +}, { /* end: all zeroes */ } }; MODULE_DEVICE_TABLE (pci, pci_ids); diff --git a/drivers/usb/gadget/net2280.h b/drivers/usb/gadget/net2280.h index f32c2746b6a..a844be0d683 100644 --- a/drivers/usb/gadget/net2280.h +++ b/drivers/usb/gadget/net2280.h @@ -6,7 +6,6 @@ /* * 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 @@ -15,7 +14,6 @@ */ #include <linux/usb/net2280.h> -#include <linux/usb/usb338x.h> /*-------------------------------------------------------------------------*/ @@ -61,13 +59,6 @@ set_idx_reg (struct net2280_regs __iomem *regs, u32 index, u32 value) #define CHIPREV_1 0x0100 #define CHIPREV_1A 0x0110 -/* DEFECT 7374 */ -#define DEFECT_7374_NUMBEROF_MAX_WAIT_LOOPS 200 -#define DEFECT_7374_PROCESSOR_WAIT_TIME 10 - -/* ep0 max packet size */ -#define EP0_SS_MAX_PACKET_SIZE 0x200 -#define EP0_HS_MAX_PACKET_SIZE 0x40 #ifdef __KERNEL__ /* ep a-f highspeed and fullspeed maxpacket, addresses @@ -94,15 +85,12 @@ 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; @@ -128,19 +116,10 @@ static inline void allow_status (struct net2280_ep *ep) ep->stopped = 1; } -static void allow_status_338x(struct net2280_ep *ep) +/* count (<= 4) bytes in the next fifo write will be valid */ +static inline void set_fifo_bytecount (struct net2280_ep *ep, unsigned count) { - /* - * 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; + writeb (count, 2 + (u8 __iomem *) &ep->regs->ep_cfg); } struct net2280_request { @@ -156,38 +135,23 @@ struct net2280 { /* each pci device provides one gadget, several endpoints */ struct usb_gadget gadget; spinlock_t lock; - struct net2280_ep ep[9]; + struct net2280_ep ep [7]; struct usb_gadget_driver *driver; unsigned enabled : 1, protocol_stall : 1, softconnect : 1, got_irq : 1, - region:1, - u1_enable:1, - u2_enable:1, - ltm_enable:1, - wakeup_enable:1, - selfpowered:1, - addressed_state:1; + region : 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... @@ -215,43 +179,6 @@ 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) @@ -271,9 +198,6 @@ 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); @@ -347,17 +271,6 @@ 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 */ |