diff options
author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2009-04-03 12:46:58 +0200 |
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committer | Remy Bohmer <linux@bohmer.net> | 2009-04-06 20:40:46 +0200 |
commit | 2731b9a86685190d26b1883f27afda5ac8e1a313 (patch) | |
tree | 83511c3f504e62eb3ac129f3332d2bcaf25d6e32 /drivers/usb/usb_ohci.c | |
parent | 712ac6a1a6909a58d6549fb220cc921a7e9f9979 (diff) | |
download | u-boot-imx-2731b9a86685190d26b1883f27afda5ac8e1a313.zip u-boot-imx-2731b9a86685190d26b1883f27afda5ac8e1a313.tar.gz u-boot-imx-2731b9a86685190d26b1883f27afda5ac8e1a313.tar.bz2 |
drivers/usb: regorganisation
move to linux usb driver organisation
as following
drivers/usb/gadget
drivers/usb/host
drivers/usb/musb
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Remy Bohmer <linux@bohmer.net>
Diffstat (limited to 'drivers/usb/usb_ohci.c')
-rw-r--r-- | drivers/usb/usb_ohci.c | 2015 |
1 files changed, 0 insertions, 2015 deletions
diff --git a/drivers/usb/usb_ohci.c b/drivers/usb/usb_ohci.c deleted file mode 100644 index 0bbee0f..0000000 --- a/drivers/usb/usb_ohci.c +++ /dev/null @@ -1,2015 +0,0 @@ -/* - * URB OHCI HCD (Host Controller Driver) for USB on the AT91RM9200 and PCI bus. - * - * Interrupt support is added. Now, it has been tested - * on ULI1575 chip and works well with USB keyboard. - * - * (C) Copyright 2007 - * Zhang Wei, Freescale Semiconductor, Inc. <wei.zhang@freescale.com> - * - * (C) Copyright 2003 - * Gary Jennejohn, DENX Software Engineering <gj@denx.de> - * - * Note: Much of this code has been derived from Linux 2.4 - * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> - * (C) Copyright 2000-2002 David Brownell - * - * Modified for the MP2USB by (C) Copyright 2005 Eric Benard - * ebenard@eukrea.com - based on s3c24x0's driver - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - */ -/* - * IMPORTANT NOTES - * 1 - Read doc/README.generic_usb_ohci - * 2 - this driver is intended for use with USB Mass Storage Devices - * (BBB) and USB keyboard. There is NO support for Isochronous pipes! - * 2 - when running on a PQFP208 AT91RM9200, define CONFIG_AT91C_PQFP_UHPBUG - * to activate workaround for bug #41 or this driver will NOT work! - */ - -#include <common.h> -#include <asm/byteorder.h> - -#if defined(CONFIG_PCI_OHCI) -# include <pci.h> -#if !defined(CONFIG_PCI_OHCI_DEVNO) -#define CONFIG_PCI_OHCI_DEVNO 0 -#endif -#endif - -#include <malloc.h> -#include <usb.h> -#include "usb_ohci.h" - -#ifdef CONFIG_AT91RM9200 -#include <asm/arch/hardware.h> /* needed for AT91_USB_HOST_BASE */ -#endif - -#if defined(CONFIG_ARM920T) || \ - defined(CONFIG_S3C2400) || \ - defined(CONFIG_S3C2410) || \ - defined(CONFIG_S3C6400) || \ - defined(CONFIG_440EP) || \ - defined(CONFIG_PCI_OHCI) || \ - defined(CONFIG_MPC5200) || \ - defined(CONFIG_SYS_OHCI_USE_NPS) -# define OHCI_USE_NPS /* force NoPowerSwitching mode */ -#endif - -#undef OHCI_VERBOSE_DEBUG /* not always helpful */ -#undef DEBUG -#undef SHOW_INFO -#undef OHCI_FILL_TRACE - -/* For initializing controller (mask in an HCFS mode too) */ -#define OHCI_CONTROL_INIT \ - (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE - -/* - * e.g. PCI controllers need this - */ -#ifdef CONFIG_SYS_OHCI_SWAP_REG_ACCESS -# define readl(a) __swap_32(*((volatile u32 *)(a))) -# define writel(a, b) (*((volatile u32 *)(b)) = __swap_32((volatile u32)a)) -#else -# define readl(a) (*((volatile u32 *)(a))) -# define writel(a, b) (*((volatile u32 *)(b)) = ((volatile u32)a)) -#endif /* CONFIG_SYS_OHCI_SWAP_REG_ACCESS */ - -#define min_t(type, x, y) \ - ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) - -#ifdef CONFIG_PCI_OHCI -static struct pci_device_id ohci_pci_ids[] = { - {0x10b9, 0x5237}, /* ULI1575 PCI OHCI module ids */ - {0x1033, 0x0035}, /* NEC PCI OHCI module ids */ - {0x1131, 0x1561}, /* Philips 1561 PCI OHCI module ids */ - /* Please add supported PCI OHCI controller ids here */ - {0, 0} -}; -#endif - -#ifdef CONFIG_PCI_EHCI_DEVNO -static struct pci_device_id ehci_pci_ids[] = { - {0x1131, 0x1562}, /* Philips 1562 PCI EHCI module ids */ - /* Please add supported PCI EHCI controller ids here */ - {0, 0} -}; -#endif - -#ifdef DEBUG -#define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg) -#else -#define dbg(format, arg...) do {} while (0) -#endif /* DEBUG */ -#define err(format, arg...) printf("ERROR: " format "\n", ## arg) -#ifdef SHOW_INFO -#define info(format, arg...) printf("INFO: " format "\n", ## arg) -#else -#define info(format, arg...) do {} while (0) -#endif - -#ifdef CONFIG_SYS_OHCI_BE_CONTROLLER -# define m16_swap(x) cpu_to_be16(x) -# define m32_swap(x) cpu_to_be32(x) -#else -# define m16_swap(x) cpu_to_le16(x) -# define m32_swap(x) cpu_to_le32(x) -#endif /* CONFIG_SYS_OHCI_BE_CONTROLLER */ - -/* global ohci_t */ -static ohci_t gohci; -/* this must be aligned to a 256 byte boundary */ -struct ohci_hcca ghcca[1]; -/* a pointer to the aligned storage */ -struct ohci_hcca *phcca; -/* this allocates EDs for all possible endpoints */ -struct ohci_device ohci_dev; -/* device which was disconnected */ -struct usb_device *devgone; - -static inline u32 roothub_a(struct ohci *hc) - { return readl(&hc->regs->roothub.a); } -static inline u32 roothub_b(struct ohci *hc) - { return readl(&hc->regs->roothub.b); } -static inline u32 roothub_status(struct ohci *hc) - { return readl(&hc->regs->roothub.status); } -static inline u32 roothub_portstatus(struct ohci *hc, int i) - { return readl(&hc->regs->roothub.portstatus[i]); } - -/* forward declaration */ -static int hc_interrupt(void); -static void td_submit_job(struct usb_device *dev, unsigned long pipe, - void *buffer, int transfer_len, - struct devrequest *setup, urb_priv_t *urb, - int interval); - -/*-------------------------------------------------------------------------* - * URB support functions - *-------------------------------------------------------------------------*/ - -/* free HCD-private data associated with this URB */ - -static void urb_free_priv(urb_priv_t *urb) -{ - int i; - int last; - struct td *td; - - last = urb->length - 1; - if (last >= 0) { - for (i = 0; i <= last; i++) { - td = urb->td[i]; - if (td) { - td->usb_dev = NULL; - urb->td[i] = NULL; - } - } - } - free(urb); -} - -/*-------------------------------------------------------------------------*/ - -#ifdef DEBUG -static int sohci_get_current_frame_number(struct usb_device *dev); - -/* debug| print the main components of an URB - * small: 0) header + data packets 1) just header */ - -static void pkt_print(urb_priv_t *purb, struct usb_device *dev, - unsigned long pipe, void *buffer, int transfer_len, - struct devrequest *setup, char *str, int small) -{ - dbg("%s URB:[%4x] dev:%2lu,ep:%2lu-%c,type:%s,len:%d/%d stat:%#lx", - str, - sohci_get_current_frame_number(dev), - usb_pipedevice(pipe), - usb_pipeendpoint(pipe), - usb_pipeout(pipe)? 'O': 'I', - usb_pipetype(pipe) < 2 ? \ - (usb_pipeint(pipe)? "INTR": "ISOC"): \ - (usb_pipecontrol(pipe)? "CTRL": "BULK"), - (purb ? purb->actual_length : 0), - transfer_len, dev->status); -#ifdef OHCI_VERBOSE_DEBUG - if (!small) { - int i, len; - - if (usb_pipecontrol(pipe)) { - printf(__FILE__ ": cmd(8):"); - for (i = 0; i < 8 ; i++) - printf(" %02x", ((__u8 *) setup) [i]); - printf("\n"); - } - if (transfer_len > 0 && buffer) { - printf(__FILE__ ": data(%d/%d):", - (purb ? purb->actual_length : 0), - transfer_len); - len = usb_pipeout(pipe)? transfer_len: - (purb ? purb->actual_length : 0); - for (i = 0; i < 16 && i < len; i++) - printf(" %02x", ((__u8 *) buffer) [i]); - printf("%s\n", i < len? "...": ""); - } - } -#endif -} - -/* just for debugging; prints non-empty branches of the int ed tree - * inclusive iso eds */ -void ep_print_int_eds(ohci_t *ohci, char *str) -{ - int i, j; - __u32 *ed_p; - for (i = 0; i < 32; i++) { - j = 5; - ed_p = &(ohci->hcca->int_table [i]); - if (*ed_p == 0) - continue; - printf(__FILE__ ": %s branch int %2d(%2x):", str, i, i); - while (*ed_p != 0 && j--) { - ed_t *ed = (ed_t *)m32_swap(ed_p); - printf(" ed: %4x;", ed->hwINFO); - ed_p = &ed->hwNextED; - } - printf("\n"); - } -} - -static void ohci_dump_intr_mask(char *label, __u32 mask) -{ - dbg("%s: 0x%08x%s%s%s%s%s%s%s%s%s", - label, - mask, - (mask & OHCI_INTR_MIE) ? " MIE" : "", - (mask & OHCI_INTR_OC) ? " OC" : "", - (mask & OHCI_INTR_RHSC) ? " RHSC" : "", - (mask & OHCI_INTR_FNO) ? " FNO" : "", - (mask & OHCI_INTR_UE) ? " UE" : "", - (mask & OHCI_INTR_RD) ? " RD" : "", - (mask & OHCI_INTR_SF) ? " SF" : "", - (mask & OHCI_INTR_WDH) ? " WDH" : "", - (mask & OHCI_INTR_SO) ? " SO" : "" - ); -} - -static void maybe_print_eds(char *label, __u32 value) -{ - ed_t *edp = (ed_t *)value; - - if (value) { - dbg("%s %08x", label, value); - dbg("%08x", edp->hwINFO); - dbg("%08x", edp->hwTailP); - dbg("%08x", edp->hwHeadP); - dbg("%08x", edp->hwNextED); - } -} - -static char *hcfs2string(int state) -{ - switch (state) { - case OHCI_USB_RESET: return "reset"; - case OHCI_USB_RESUME: return "resume"; - case OHCI_USB_OPER: return "operational"; - case OHCI_USB_SUSPEND: return "suspend"; - } - return "?"; -} - -/* dump control and status registers */ -static void ohci_dump_status(ohci_t *controller) -{ - struct ohci_regs *regs = controller->regs; - __u32 temp; - - temp = readl(®s->revision) & 0xff; - if (temp != 0x10) - dbg("spec %d.%d", (temp >> 4), (temp & 0x0f)); - - temp = readl(®s->control); - dbg("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp, - (temp & OHCI_CTRL_RWE) ? " RWE" : "", - (temp & OHCI_CTRL_RWC) ? " RWC" : "", - (temp & OHCI_CTRL_IR) ? " IR" : "", - hcfs2string(temp & OHCI_CTRL_HCFS), - (temp & OHCI_CTRL_BLE) ? " BLE" : "", - (temp & OHCI_CTRL_CLE) ? " CLE" : "", - (temp & OHCI_CTRL_IE) ? " IE" : "", - (temp & OHCI_CTRL_PLE) ? " PLE" : "", - temp & OHCI_CTRL_CBSR - ); - - temp = readl(®s->cmdstatus); - dbg("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp, - (temp & OHCI_SOC) >> 16, - (temp & OHCI_OCR) ? " OCR" : "", - (temp & OHCI_BLF) ? " BLF" : "", - (temp & OHCI_CLF) ? " CLF" : "", - (temp & OHCI_HCR) ? " HCR" : "" - ); - - ohci_dump_intr_mask("intrstatus", readl(®s->intrstatus)); - ohci_dump_intr_mask("intrenable", readl(®s->intrenable)); - - maybe_print_eds("ed_periodcurrent", readl(®s->ed_periodcurrent)); - - maybe_print_eds("ed_controlhead", readl(®s->ed_controlhead)); - maybe_print_eds("ed_controlcurrent", readl(®s->ed_controlcurrent)); - - maybe_print_eds("ed_bulkhead", readl(®s->ed_bulkhead)); - maybe_print_eds("ed_bulkcurrent", readl(®s->ed_bulkcurrent)); - - maybe_print_eds("donehead", readl(®s->donehead)); -} - -static void ohci_dump_roothub(ohci_t *controller, int verbose) -{ - __u32 temp, ndp, i; - - temp = roothub_a(controller); - ndp = (temp & RH_A_NDP); -#ifdef CONFIG_AT91C_PQFP_UHPBUG - ndp = (ndp == 2) ? 1:0; -#endif - if (verbose) { - dbg("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp, - ((temp & RH_A_POTPGT) >> 24) & 0xff, - (temp & RH_A_NOCP) ? " NOCP" : "", - (temp & RH_A_OCPM) ? " OCPM" : "", - (temp & RH_A_DT) ? " DT" : "", - (temp & RH_A_NPS) ? " NPS" : "", - (temp & RH_A_PSM) ? " PSM" : "", - ndp - ); - temp = roothub_b(controller); - dbg("roothub.b: %08x PPCM=%04x DR=%04x", - temp, - (temp & RH_B_PPCM) >> 16, - (temp & RH_B_DR) - ); - temp = roothub_status(controller); - dbg("roothub.status: %08x%s%s%s%s%s%s", - temp, - (temp & RH_HS_CRWE) ? " CRWE" : "", - (temp & RH_HS_OCIC) ? " OCIC" : "", - (temp & RH_HS_LPSC) ? " LPSC" : "", - (temp & RH_HS_DRWE) ? " DRWE" : "", - (temp & RH_HS_OCI) ? " OCI" : "", - (temp & RH_HS_LPS) ? " LPS" : "" - ); - } - - for (i = 0; i < ndp; i++) { - temp = roothub_portstatus(controller, i); - dbg("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s", - i, - temp, - (temp & RH_PS_PRSC) ? " PRSC" : "", - (temp & RH_PS_OCIC) ? " OCIC" : "", - (temp & RH_PS_PSSC) ? " PSSC" : "", - (temp & RH_PS_PESC) ? " PESC" : "", - (temp & RH_PS_CSC) ? " CSC" : "", - - (temp & RH_PS_LSDA) ? " LSDA" : "", - (temp & RH_PS_PPS) ? " PPS" : "", - (temp & RH_PS_PRS) ? " PRS" : "", - (temp & RH_PS_POCI) ? " POCI" : "", - (temp & RH_PS_PSS) ? " PSS" : "", - - (temp & RH_PS_PES) ? " PES" : "", - (temp & RH_PS_CCS) ? " CCS" : "" - ); - } -} - -static void ohci_dump(ohci_t *controller, int verbose) -{ - dbg("OHCI controller usb-%s state", controller->slot_name); - - /* dumps some of the state we know about */ - ohci_dump_status(controller); - if (verbose) - ep_print_int_eds(controller, "hcca"); - dbg("hcca frame #%04x", controller->hcca->frame_no); - ohci_dump_roothub(controller, 1); -} -#endif /* DEBUG */ - -/*-------------------------------------------------------------------------* - * Interface functions (URB) - *-------------------------------------------------------------------------*/ - -/* get a transfer request */ - -int sohci_submit_job(urb_priv_t *urb, struct devrequest *setup) -{ - ohci_t *ohci; - ed_t *ed; - urb_priv_t *purb_priv = urb; - int i, size = 0; - struct usb_device *dev = urb->dev; - unsigned long pipe = urb->pipe; - void *buffer = urb->transfer_buffer; - int transfer_len = urb->transfer_buffer_length; - int interval = urb->interval; - - ohci = &gohci; - - /* when controller's hung, permit only roothub cleanup attempts - * such as powering down ports */ - if (ohci->disabled) { - err("sohci_submit_job: EPIPE"); - return -1; - } - - /* we're about to begin a new transaction here so mark the - * URB unfinished */ - urb->finished = 0; - - /* every endpoint has a ed, locate and fill it */ - ed = ep_add_ed(dev, pipe, interval, 1); - if (!ed) { - err("sohci_submit_job: ENOMEM"); - return -1; - } - - /* for the private part of the URB we need the number of TDs (size) */ - switch (usb_pipetype(pipe)) { - case PIPE_BULK: /* one TD for every 4096 Byte */ - size = (transfer_len - 1) / 4096 + 1; - break; - case PIPE_CONTROL:/* 1 TD for setup, 1 for ACK and 1 for every 4096 B */ - size = (transfer_len == 0)? 2: - (transfer_len - 1) / 4096 + 3; - break; - case PIPE_INTERRUPT: /* 1 TD */ - size = 1; - break; - } - - ed->purb = urb; - - if (size >= (N_URB_TD - 1)) { - err("need %d TDs, only have %d", size, N_URB_TD); - return -1; - } - purb_priv->pipe = pipe; - - /* fill the private part of the URB */ - purb_priv->length = size; - purb_priv->ed = ed; - purb_priv->actual_length = 0; - - /* allocate the TDs */ - /* note that td[0] was allocated in ep_add_ed */ - for (i = 0; i < size; i++) { - purb_priv->td[i] = td_alloc(dev); - if (!purb_priv->td[i]) { - purb_priv->length = i; - urb_free_priv(purb_priv); - err("sohci_submit_job: ENOMEM"); - return -1; - } - } - - if (ed->state == ED_NEW || (ed->state & ED_DEL)) { - urb_free_priv(purb_priv); - err("sohci_submit_job: EINVAL"); - return -1; - } - - /* link the ed into a chain if is not already */ - if (ed->state != ED_OPER) - ep_link(ohci, ed); - - /* fill the TDs and link it to the ed */ - td_submit_job(dev, pipe, buffer, transfer_len, - setup, purb_priv, interval); - - return 0; -} - -static inline int sohci_return_job(struct ohci *hc, urb_priv_t *urb) -{ - struct ohci_regs *regs = hc->regs; - - switch (usb_pipetype(urb->pipe)) { - case PIPE_INTERRUPT: - /* implicitly requeued */ - if (urb->dev->irq_handle && - (urb->dev->irq_act_len = urb->actual_length)) { - writel(OHCI_INTR_WDH, ®s->intrenable); - readl(®s->intrenable); /* PCI posting flush */ - urb->dev->irq_handle(urb->dev); - writel(OHCI_INTR_WDH, ®s->intrdisable); - readl(®s->intrdisable); /* PCI posting flush */ - } - urb->actual_length = 0; - td_submit_job( - urb->dev, - urb->pipe, - urb->transfer_buffer, - urb->transfer_buffer_length, - NULL, - urb, - urb->interval); - break; - case PIPE_CONTROL: - case PIPE_BULK: - break; - default: - return 0; - } - return 1; -} - -/*-------------------------------------------------------------------------*/ - -#ifdef DEBUG -/* tell us the current USB frame number */ - -static int sohci_get_current_frame_number(struct usb_device *usb_dev) -{ - ohci_t *ohci = &gohci; - - return m16_swap(ohci->hcca->frame_no); -} -#endif - -/*-------------------------------------------------------------------------* - * ED handling functions - *-------------------------------------------------------------------------*/ - -/* search for the right branch to insert an interrupt ed into the int tree - * do some load ballancing; - * returns the branch and - * sets the interval to interval = 2^integer (ld (interval)) */ - -static int ep_int_ballance(ohci_t *ohci, int interval, int load) -{ - int i, branch = 0; - - /* search for the least loaded interrupt endpoint - * branch of all 32 branches - */ - for (i = 0; i < 32; i++) - if (ohci->ohci_int_load [branch] > ohci->ohci_int_load [i]) - branch = i; - - branch = branch % interval; - for (i = branch; i < 32; i += interval) - ohci->ohci_int_load [i] += load; - - return branch; -} - -/*-------------------------------------------------------------------------*/ - -/* 2^int( ld (inter)) */ - -static int ep_2_n_interval(int inter) -{ - int i; - for (i = 0; ((inter >> i) > 1) && (i < 5); i++); - return 1 << i; -} - -/*-------------------------------------------------------------------------*/ - -/* the int tree is a binary tree - * in order to process it sequentially the indexes of the branches have to - * be mapped the mapping reverses the bits of a word of num_bits length */ -static int ep_rev(int num_bits, int word) -{ - int i, wout = 0; - - for (i = 0; i < num_bits; i++) - wout |= (((word >> i) & 1) << (num_bits - i - 1)); - return wout; -} - -/*-------------------------------------------------------------------------* - * ED handling functions - *-------------------------------------------------------------------------*/ - -/* link an ed into one of the HC chains */ - -static int ep_link(ohci_t *ohci, ed_t *edi) -{ - volatile ed_t *ed = edi; - int int_branch; - int i; - int inter; - int interval; - int load; - __u32 *ed_p; - - ed->state = ED_OPER; - ed->int_interval = 0; - - switch (ed->type) { - case PIPE_CONTROL: - ed->hwNextED = 0; - if (ohci->ed_controltail == NULL) - writel(ed, &ohci->regs->ed_controlhead); - else - ohci->ed_controltail->hwNextED = - m32_swap((unsigned long)ed); - - ed->ed_prev = ohci->ed_controltail; - if (!ohci->ed_controltail && !ohci->ed_rm_list[0] && - !ohci->ed_rm_list[1] && !ohci->sleeping) { - ohci->hc_control |= OHCI_CTRL_CLE; - writel(ohci->hc_control, &ohci->regs->control); - } - ohci->ed_controltail = edi; - break; - - case PIPE_BULK: - ed->hwNextED = 0; - if (ohci->ed_bulktail == NULL) - writel(ed, &ohci->regs->ed_bulkhead); - else - ohci->ed_bulktail->hwNextED = - m32_swap((unsigned long)ed); - - ed->ed_prev = ohci->ed_bulktail; - if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] && - !ohci->ed_rm_list[1] && !ohci->sleeping) { - ohci->hc_control |= OHCI_CTRL_BLE; - writel(ohci->hc_control, &ohci->regs->control); - } - ohci->ed_bulktail = edi; - break; - - case PIPE_INTERRUPT: - load = ed->int_load; - interval = ep_2_n_interval(ed->int_period); - ed->int_interval = interval; - int_branch = ep_int_ballance(ohci, interval, load); - ed->int_branch = int_branch; - - for (i = 0; i < ep_rev(6, interval); i += inter) { - inter = 1; - for (ed_p = &(ohci->hcca->int_table[\ - ep_rev(5, i) + int_branch]); - (*ed_p != 0) && - (((ed_t *)ed_p)->int_interval >= interval); - ed_p = &(((ed_t *)ed_p)->hwNextED)) - inter = ep_rev(6, - ((ed_t *)ed_p)->int_interval); - ed->hwNextED = *ed_p; - *ed_p = m32_swap((unsigned long)ed); - } - break; - } - return 0; -} - -/*-------------------------------------------------------------------------*/ - -/* scan the periodic table to find and unlink this ED */ -static void periodic_unlink(struct ohci *ohci, volatile struct ed *ed, - unsigned index, unsigned period) -{ - for (; index < NUM_INTS; index += period) { - __u32 *ed_p = &ohci->hcca->int_table [index]; - - /* ED might have been unlinked through another path */ - while (*ed_p != 0) { - if (((struct ed *) - m32_swap((unsigned long)ed_p)) == ed) { - *ed_p = ed->hwNextED; - break; - } - ed_p = &(((struct ed *) - m32_swap((unsigned long)ed_p))->hwNextED); - } - } -} - -/* unlink an ed from one of the HC chains. - * just the link to the ed is unlinked. - * the link from the ed still points to another operational ed or 0 - * so the HC can eventually finish the processing of the unlinked ed */ - -static int ep_unlink(ohci_t *ohci, ed_t *edi) -{ - volatile ed_t *ed = edi; - int i; - - ed->hwINFO |= m32_swap(OHCI_ED_SKIP); - - switch (ed->type) { - case PIPE_CONTROL: - if (ed->ed_prev == NULL) { - if (!ed->hwNextED) { - ohci->hc_control &= ~OHCI_CTRL_CLE; - writel(ohci->hc_control, &ohci->regs->control); - } - writel(m32_swap(*((__u32 *)&ed->hwNextED)), - &ohci->regs->ed_controlhead); - } else { - ed->ed_prev->hwNextED = ed->hwNextED; - } - if (ohci->ed_controltail == ed) { - ohci->ed_controltail = ed->ed_prev; - } else { - ((ed_t *)m32_swap( - *((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; - } - break; - - case PIPE_BULK: - if (ed->ed_prev == NULL) { - if (!ed->hwNextED) { - ohci->hc_control &= ~OHCI_CTRL_BLE; - writel(ohci->hc_control, &ohci->regs->control); - } - writel(m32_swap(*((__u32 *)&ed->hwNextED)), - &ohci->regs->ed_bulkhead); - } else { - ed->ed_prev->hwNextED = ed->hwNextED; - } - if (ohci->ed_bulktail == ed) { - ohci->ed_bulktail = ed->ed_prev; - } else { - ((ed_t *)m32_swap( - *((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; - } - break; - - case PIPE_INTERRUPT: - periodic_unlink(ohci, ed, 0, 1); - for (i = ed->int_branch; i < 32; i += ed->int_interval) - ohci->ohci_int_load[i] -= ed->int_load; - break; - } - ed->state = ED_UNLINK; - return 0; -} - -/*-------------------------------------------------------------------------*/ - -/* add/reinit an endpoint; this should be done once at the - * usb_set_configuration command, but the USB stack is a little bit - * stateless so we do it at every transaction if the state of the ed - * is ED_NEW then a dummy td is added and the state is changed to - * ED_UNLINK in all other cases the state is left unchanged the ed - * info fields are setted anyway even though most of them should not - * change - */ -static ed_t *ep_add_ed(struct usb_device *usb_dev, unsigned long pipe, - int interval, int load) -{ - td_t *td; - ed_t *ed_ret; - volatile ed_t *ed; - - ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint(pipe) << 1) | - (usb_pipecontrol(pipe)? 0: usb_pipeout(pipe))]; - - if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) { - err("ep_add_ed: pending delete"); - /* pending delete request */ - return NULL; - } - - if (ed->state == ED_NEW) { - /* dummy td; end of td list for ed */ - td = td_alloc(usb_dev); - ed->hwTailP = m32_swap((unsigned long)td); - ed->hwHeadP = ed->hwTailP; - ed->state = ED_UNLINK; - ed->type = usb_pipetype(pipe); - ohci_dev.ed_cnt++; - } - - ed->hwINFO = m32_swap(usb_pipedevice(pipe) - | usb_pipeendpoint(pipe) << 7 - | (usb_pipeisoc(pipe)? 0x8000: 0) - | (usb_pipecontrol(pipe)? 0: \ - (usb_pipeout(pipe)? 0x800: 0x1000)) - | usb_pipeslow(pipe) << 13 - | usb_maxpacket(usb_dev, pipe) << 16); - - if (ed->type == PIPE_INTERRUPT && ed->state == ED_UNLINK) { - ed->int_period = interval; - ed->int_load = load; - } - - return ed_ret; -} - -/*-------------------------------------------------------------------------* - * TD handling functions - *-------------------------------------------------------------------------*/ - -/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */ - -static void td_fill(ohci_t *ohci, unsigned int info, - void *data, int len, - struct usb_device *dev, int index, urb_priv_t *urb_priv) -{ - volatile td_t *td, *td_pt; -#ifdef OHCI_FILL_TRACE - int i; -#endif - - if (index > urb_priv->length) { - err("index > length"); - return; - } - /* use this td as the next dummy */ - td_pt = urb_priv->td [index]; - td_pt->hwNextTD = 0; - - /* fill the old dummy TD */ - td = urb_priv->td [index] = - (td_t *)(m32_swap(urb_priv->ed->hwTailP) & ~0xf); - - td->ed = urb_priv->ed; - td->next_dl_td = NULL; - td->index = index; - td->data = (__u32)data; -#ifdef OHCI_FILL_TRACE - if (usb_pipebulk(urb_priv->pipe) && usb_pipeout(urb_priv->pipe)) { - for (i = 0; i < len; i++) - printf("td->data[%d] %#2x ", i, ((unsigned char *)td->data)[i]); - printf("\n"); - } -#endif - if (!len) - data = 0; - - td->hwINFO = m32_swap(info); - td->hwCBP = m32_swap((unsigned long)data); - if (data) - td->hwBE = m32_swap((unsigned long)(data + len - 1)); - else - td->hwBE = 0; - - td->hwNextTD = m32_swap((unsigned long)td_pt); - - /* append to queue */ - td->ed->hwTailP = td->hwNextTD; -} - -/*-------------------------------------------------------------------------*/ - -/* prepare all TDs of a transfer */ - -static void td_submit_job(struct usb_device *dev, unsigned long pipe, - void *buffer, int transfer_len, - struct devrequest *setup, urb_priv_t *urb, - int interval) -{ - ohci_t *ohci = &gohci; - int data_len = transfer_len; - void *data; - int cnt = 0; - __u32 info = 0; - unsigned int toggle = 0; - - /* OHCI handles the DATA-toggles itself, we just use the USB-toggle - * bits for reseting */ - if (usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) { - toggle = TD_T_TOGGLE; - } else { - toggle = TD_T_DATA0; - usb_settoggle(dev, usb_pipeendpoint(pipe), - usb_pipeout(pipe), 1); - } - urb->td_cnt = 0; - if (data_len) - data = buffer; - else - data = 0; - - switch (usb_pipetype(pipe)) { - case PIPE_BULK: - info = usb_pipeout(pipe)? - TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ; - while (data_len > 4096) { - td_fill(ohci, info | (cnt? TD_T_TOGGLE:toggle), - data, 4096, dev, cnt, urb); - data += 4096; data_len -= 4096; cnt++; - } - info = usb_pipeout(pipe)? - TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ; - td_fill(ohci, info | (cnt? TD_T_TOGGLE:toggle), data, - data_len, dev, cnt, urb); - cnt++; - - if (!ohci->sleeping) { - /* start bulk list */ - writel(OHCI_BLF, &ohci->regs->cmdstatus); - } - break; - - case PIPE_CONTROL: - /* Setup phase */ - info = TD_CC | TD_DP_SETUP | TD_T_DATA0; - td_fill(ohci, info, setup, 8, dev, cnt++, urb); - - /* Optional Data phase */ - if (data_len > 0) { - info = usb_pipeout(pipe)? - TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : - TD_CC | TD_R | TD_DP_IN | TD_T_DATA1; - /* NOTE: mishandles transfers >8K, some >4K */ - td_fill(ohci, info, data, data_len, dev, cnt++, urb); - } - - /* Status phase */ - info = usb_pipeout(pipe)? - TD_CC | TD_DP_IN | TD_T_DATA1: - TD_CC | TD_DP_OUT | TD_T_DATA1; - td_fill(ohci, info, data, 0, dev, cnt++, urb); - - if (!ohci->sleeping) { - /* start Control list */ - writel(OHCI_CLF, &ohci->regs->cmdstatus); - } - break; - - case PIPE_INTERRUPT: - info = usb_pipeout(urb->pipe)? - TD_CC | TD_DP_OUT | toggle: - TD_CC | TD_R | TD_DP_IN | toggle; - td_fill(ohci, info, data, data_len, dev, cnt++, urb); - break; - } - if (urb->length != cnt) - dbg("TD LENGTH %d != CNT %d", urb->length, cnt); -} - -/*-------------------------------------------------------------------------* - * Done List handling functions - *-------------------------------------------------------------------------*/ - -/* calculate the transfer length and update the urb */ - -static void dl_transfer_length(td_t *td) -{ - __u32 tdINFO, tdBE, tdCBP; - urb_priv_t *lurb_priv = td->ed->purb; - - tdINFO = m32_swap(td->hwINFO); - tdBE = m32_swap(td->hwBE); - tdCBP = m32_swap(td->hwCBP); - - if (!(usb_pipecontrol(lurb_priv->pipe) && - ((td->index == 0) || (td->index == lurb_priv->length - 1)))) { - if (tdBE != 0) { - if (td->hwCBP == 0) - lurb_priv->actual_length += tdBE - td->data + 1; - else - lurb_priv->actual_length += tdCBP - td->data; - } - } -} - -/*-------------------------------------------------------------------------*/ -static void check_status(td_t *td_list) -{ - urb_priv_t *lurb_priv = td_list->ed->purb; - int urb_len = lurb_priv->length; - __u32 *phwHeadP = &td_list->ed->hwHeadP; - int cc; - - cc = TD_CC_GET(m32_swap(td_list->hwINFO)); - if (cc) { - err(" USB-error: %s (%x)", cc_to_string[cc], cc); - - if (*phwHeadP & m32_swap(0x1)) { - if (lurb_priv && - ((td_list->index + 1) < urb_len)) { - *phwHeadP = - (lurb_priv->td[urb_len - 1]->hwNextTD &\ - m32_swap(0xfffffff0)) | - (*phwHeadP & m32_swap(0x2)); - - lurb_priv->td_cnt += urb_len - - td_list->index - 1; - } else - *phwHeadP &= m32_swap(0xfffffff2); - } -#ifdef CONFIG_MPC5200 - td_list->hwNextTD = 0; -#endif - } -} - -/* replies to the request have to be on a FIFO basis so - * we reverse the reversed done-list */ -static td_t *dl_reverse_done_list(ohci_t *ohci) -{ - __u32 td_list_hc; - td_t *td_rev = NULL; - td_t *td_list = NULL; - - td_list_hc = m32_swap(ohci->hcca->done_head) & 0xfffffff0; - ohci->hcca->done_head = 0; - - while (td_list_hc) { - td_list = (td_t *)td_list_hc; - check_status(td_list); - td_list->next_dl_td = td_rev; - td_rev = td_list; - td_list_hc = m32_swap(td_list->hwNextTD) & 0xfffffff0; - } - return td_list; -} - -/*-------------------------------------------------------------------------*/ -/*-------------------------------------------------------------------------*/ - -static void finish_urb(ohci_t *ohci, urb_priv_t *urb, int status) -{ - if ((status & (ED_OPER | ED_UNLINK)) && (urb->state != URB_DEL)) - urb->finished = sohci_return_job(ohci, urb); - else - dbg("finish_urb: strange.., ED state %x, \n", status); -} - -/* - * Used to take back a TD from the host controller. This would normally be - * called from within dl_done_list, however it may be called directly if the - * HC no longer sees the TD and it has not appeared on the donelist (after - * two frames). This bug has been observed on ZF Micro systems. - */ -static int takeback_td(ohci_t *ohci, td_t *td_list) -{ - ed_t *ed; - int cc; - int stat = 0; - /* urb_t *urb; */ - urb_priv_t *lurb_priv; - __u32 tdINFO, edHeadP, edTailP; - - tdINFO = m32_swap(td_list->hwINFO); - - ed = td_list->ed; - lurb_priv = ed->purb; - - dl_transfer_length(td_list); - - lurb_priv->td_cnt++; - - /* error code of transfer */ - cc = TD_CC_GET(tdINFO); - if (cc) { - err("USB-error: %s (%x)", cc_to_string[cc], cc); - stat = cc_to_error[cc]; - } - - /* see if this done list makes for all TD's of current URB, - * and mark the URB finished if so */ - if (lurb_priv->td_cnt == lurb_priv->length) - finish_urb(ohci, lurb_priv, ed->state); - - dbg("dl_done_list: processing TD %x, len %x\n", - lurb_priv->td_cnt, lurb_priv->length); - - if (ed->state != ED_NEW && (!usb_pipeint(lurb_priv->pipe))) { - edHeadP = m32_swap(ed->hwHeadP) & 0xfffffff0; - edTailP = m32_swap(ed->hwTailP); - - /* unlink eds if they are not busy */ - if ((edHeadP == edTailP) && (ed->state == ED_OPER)) - ep_unlink(ohci, ed); - } - return stat; -} - -static int dl_done_list(ohci_t *ohci) -{ - int stat = 0; - td_t *td_list = dl_reverse_done_list(ohci); - - while (td_list) { - td_t *td_next = td_list->next_dl_td; - stat = takeback_td(ohci, td_list); - td_list = td_next; - } - return stat; -} - -/*-------------------------------------------------------------------------* - * Virtual Root Hub - *-------------------------------------------------------------------------*/ - -/* Device descriptor */ -static __u8 root_hub_dev_des[] = -{ - 0x12, /* __u8 bLength; */ - 0x01, /* __u8 bDescriptorType; Device */ - 0x10, /* __u16 bcdUSB; v1.1 */ - 0x01, - 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */ - 0x00, /* __u8 bDeviceSubClass; */ - 0x00, /* __u8 bDeviceProtocol; */ - 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */ - 0x00, /* __u16 idVendor; */ - 0x00, - 0x00, /* __u16 idProduct; */ - 0x00, - 0x00, /* __u16 bcdDevice; */ - 0x00, - 0x00, /* __u8 iManufacturer; */ - 0x01, /* __u8 iProduct; */ - 0x00, /* __u8 iSerialNumber; */ - 0x01 /* __u8 bNumConfigurations; */ -}; - -/* Configuration descriptor */ -static __u8 root_hub_config_des[] = -{ - 0x09, /* __u8 bLength; */ - 0x02, /* __u8 bDescriptorType; Configuration */ - 0x19, /* __u16 wTotalLength; */ - 0x00, - 0x01, /* __u8 bNumInterfaces; */ - 0x01, /* __u8 bConfigurationValue; */ - 0x00, /* __u8 iConfiguration; */ - 0x40, /* __u8 bmAttributes; - Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */ - 0x00, /* __u8 MaxPower; */ - - /* interface */ - 0x09, /* __u8 if_bLength; */ - 0x04, /* __u8 if_bDescriptorType; Interface */ - 0x00, /* __u8 if_bInterfaceNumber; */ - 0x00, /* __u8 if_bAlternateSetting; */ - 0x01, /* __u8 if_bNumEndpoints; */ - 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */ - 0x00, /* __u8 if_bInterfaceSubClass; */ - 0x00, /* __u8 if_bInterfaceProtocol; */ - 0x00, /* __u8 if_iInterface; */ - - /* endpoint */ - 0x07, /* __u8 ep_bLength; */ - 0x05, /* __u8 ep_bDescriptorType; Endpoint */ - 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */ - 0x03, /* __u8 ep_bmAttributes; Interrupt */ - 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */ - 0x00, - 0xff /* __u8 ep_bInterval; 255 ms */ -}; - -static unsigned char root_hub_str_index0[] = -{ - 0x04, /* __u8 bLength; */ - 0x03, /* __u8 bDescriptorType; String-descriptor */ - 0x09, /* __u8 lang ID */ - 0x04, /* __u8 lang ID */ -}; - -static unsigned char root_hub_str_index1[] = -{ - 28, /* __u8 bLength; */ - 0x03, /* __u8 bDescriptorType; String-descriptor */ - 'O', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'H', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'C', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'I', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - ' ', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'R', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'o', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'o', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 't', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - ' ', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'H', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'u', /* __u8 Unicode */ - 0, /* __u8 Unicode */ - 'b', /* __u8 Unicode */ - 0, /* __u8 Unicode */ -}; - -/* Hub class-specific descriptor is constructed dynamically */ - -/*-------------------------------------------------------------------------*/ - -#define OK(x) len = (x); break -#ifdef DEBUG -#define WR_RH_STAT(x) {info("WR:status %#8x", (x)); writel((x), \ - &gohci.regs->roothub.status); } -#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, \ - (x)); writel((x), &gohci.regs->roothub.portstatus[wIndex-1]); } -#else -#define WR_RH_STAT(x) writel((x), &gohci.regs->roothub.status) -#define WR_RH_PORTSTAT(x) writel((x), \ - &gohci.regs->roothub.portstatus[wIndex-1]) -#endif -#define RD_RH_STAT roothub_status(&gohci) -#define RD_RH_PORTSTAT roothub_portstatus(&gohci, wIndex-1) - -/* request to virtual root hub */ - -int rh_check_port_status(ohci_t *controller) -{ - __u32 temp, ndp, i; - int res; - - res = -1; - temp = roothub_a(controller); - ndp = (temp & RH_A_NDP); -#ifdef CONFIG_AT91C_PQFP_UHPBUG - ndp = (ndp == 2) ? 1:0; -#endif - for (i = 0; i < ndp; i++) { - temp = roothub_portstatus(controller, i); - /* check for a device disconnect */ - if (((temp & (RH_PS_PESC | RH_PS_CSC)) == - (RH_PS_PESC | RH_PS_CSC)) && - ((temp & RH_PS_CCS) == 0)) { - res = i; - break; - } - } - return res; -} - -static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, - void *buffer, int transfer_len, struct devrequest *cmd) -{ - void *data = buffer; - int leni = transfer_len; - int len = 0; - int stat = 0; - __u32 datab[4]; - __u8 *data_buf = (__u8 *)datab; - __u16 bmRType_bReq; - __u16 wValue; - __u16 wIndex; - __u16 wLength; - -#ifdef DEBUG -pkt_print(NULL, dev, pipe, buffer, transfer_len, - cmd, "SUB(rh)", usb_pipein(pipe)); -#else - wait_ms(1); -#endif - if (usb_pipeint(pipe)) { - info("Root-Hub submit IRQ: NOT implemented"); - return 0; - } - - bmRType_bReq = cmd->requesttype | (cmd->request << 8); - wValue = le16_to_cpu(cmd->value); - wIndex = le16_to_cpu(cmd->index); - wLength = le16_to_cpu(cmd->length); - - info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x", - dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength); - - switch (bmRType_bReq) { - /* Request Destination: - without flags: Device, - RH_INTERFACE: interface, - RH_ENDPOINT: endpoint, - RH_CLASS means HUB here, - RH_OTHER | RH_CLASS almost ever means HUB_PORT here - */ - - case RH_GET_STATUS: - *(__u16 *) data_buf = cpu_to_le16(1); - OK(2); - case RH_GET_STATUS | RH_INTERFACE: - *(__u16 *) data_buf = cpu_to_le16(0); - OK(2); - case RH_GET_STATUS | RH_ENDPOINT: - *(__u16 *) data_buf = cpu_to_le16(0); - OK(2); - case RH_GET_STATUS | RH_CLASS: - *(__u32 *) data_buf = cpu_to_le32( - RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE)); - OK(4); - case RH_GET_STATUS | RH_OTHER | RH_CLASS: - *(__u32 *) data_buf = cpu_to_le32(RD_RH_PORTSTAT); - OK(4); - - case RH_CLEAR_FEATURE | RH_ENDPOINT: - switch (wValue) { - case (RH_ENDPOINT_STALL): - OK(0); - } - break; - - case RH_CLEAR_FEATURE | RH_CLASS: - switch (wValue) { - case RH_C_HUB_LOCAL_POWER: - OK(0); - case (RH_C_HUB_OVER_CURRENT): - WR_RH_STAT(RH_HS_OCIC); - OK(0); - } - break; - - case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: - switch (wValue) { - case (RH_PORT_ENABLE): WR_RH_PORTSTAT(RH_PS_CCS); OK(0); - case (RH_PORT_SUSPEND): WR_RH_PORTSTAT(RH_PS_POCI); OK(0); - case (RH_PORT_POWER): WR_RH_PORTSTAT(RH_PS_LSDA); OK(0); - case (RH_C_PORT_CONNECTION): WR_RH_PORTSTAT(RH_PS_CSC); OK(0); - case (RH_C_PORT_ENABLE): WR_RH_PORTSTAT(RH_PS_PESC); OK(0); - case (RH_C_PORT_SUSPEND): WR_RH_PORTSTAT(RH_PS_PSSC); OK(0); - case (RH_C_PORT_OVER_CURRENT):WR_RH_PORTSTAT(RH_PS_OCIC); OK(0); - case (RH_C_PORT_RESET): WR_RH_PORTSTAT(RH_PS_PRSC); OK(0); - } - break; - - case RH_SET_FEATURE | RH_OTHER | RH_CLASS: - switch (wValue) { - case (RH_PORT_SUSPEND): - WR_RH_PORTSTAT(RH_PS_PSS); OK(0); - case (RH_PORT_RESET): /* BUG IN HUP CODE *********/ - if (RD_RH_PORTSTAT & RH_PS_CCS) - WR_RH_PORTSTAT(RH_PS_PRS); - OK(0); - case (RH_PORT_POWER): - WR_RH_PORTSTAT(RH_PS_PPS); - wait_ms(100); - OK(0); - case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/ - if (RD_RH_PORTSTAT & RH_PS_CCS) - WR_RH_PORTSTAT(RH_PS_PES); - OK(0); - } - break; - - case RH_SET_ADDRESS: - gohci.rh.devnum = wValue; - OK(0); - - case RH_GET_DESCRIPTOR: - switch ((wValue & 0xff00) >> 8) { - case (0x01): /* device descriptor */ - len = min_t(unsigned int, - leni, - min_t(unsigned int, - sizeof(root_hub_dev_des), - wLength)); - data_buf = root_hub_dev_des; OK(len); - case (0x02): /* configuration descriptor */ - len = min_t(unsigned int, - leni, - min_t(unsigned int, - sizeof(root_hub_config_des), - wLength)); - data_buf = root_hub_config_des; OK(len); - case (0x03): /* string descriptors */ - if (wValue == 0x0300) { - len = min_t(unsigned int, - leni, - min_t(unsigned int, - sizeof(root_hub_str_index0), - wLength)); - data_buf = root_hub_str_index0; - OK(len); - } - if (wValue == 0x0301) { - len = min_t(unsigned int, - leni, - min_t(unsigned int, - sizeof(root_hub_str_index1), - wLength)); - data_buf = root_hub_str_index1; - OK(len); - } - default: - stat = USB_ST_STALLED; - } - break; - - case RH_GET_DESCRIPTOR | RH_CLASS: - { - __u32 temp = roothub_a(&gohci); - - data_buf [0] = 9; /* min length; */ - data_buf [1] = 0x29; - data_buf [2] = temp & RH_A_NDP; -#ifdef CONFIG_AT91C_PQFP_UHPBUG - data_buf [2] = (data_buf [2] == 2) ? 1:0; -#endif - data_buf [3] = 0; - if (temp & RH_A_PSM) /* per-port power switching? */ - data_buf [3] |= 0x1; - if (temp & RH_A_NOCP) /* no overcurrent reporting? */ - data_buf [3] |= 0x10; - else if (temp & RH_A_OCPM)/* per-port overcurrent reporting? */ - data_buf [3] |= 0x8; - - /* corresponds to data_buf[4-7] */ - datab [1] = 0; - data_buf [5] = (temp & RH_A_POTPGT) >> 24; - temp = roothub_b(&gohci); - data_buf [7] = temp & RH_B_DR; - if (data_buf [2] < 7) { - data_buf [8] = 0xff; - } else { - data_buf [0] += 2; - data_buf [8] = (temp & RH_B_DR) >> 8; - data_buf [10] = data_buf [9] = 0xff; - } - - len = min_t(unsigned int, leni, - min_t(unsigned int, data_buf [0], wLength)); - OK(len); - } - - case RH_GET_CONFIGURATION: *(__u8 *) data_buf = 0x01; OK(1); - - case RH_SET_CONFIGURATION: WR_RH_STAT(0x10000); OK(0); - - default: - dbg("unsupported root hub command"); - stat = USB_ST_STALLED; - } - -#ifdef DEBUG - ohci_dump_roothub(&gohci, 1); -#else - wait_ms(1); -#endif - - len = min_t(int, len, leni); - if (data != data_buf) - memcpy(data, data_buf, len); - dev->act_len = len; - dev->status = stat; - -#ifdef DEBUG - pkt_print(NULL, dev, pipe, buffer, - transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/); -#else - wait_ms(1); -#endif - - return stat; -} - -/*-------------------------------------------------------------------------*/ - -/* common code for handling submit messages - used for all but root hub */ -/* accesses. */ -int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len, struct devrequest *setup, int interval) -{ - int stat = 0; - int maxsize = usb_maxpacket(dev, pipe); - int timeout; - urb_priv_t *urb; - - urb = malloc(sizeof(urb_priv_t)); - memset(urb, 0, sizeof(urb_priv_t)); - - urb->dev = dev; - urb->pipe = pipe; - urb->transfer_buffer = buffer; - urb->transfer_buffer_length = transfer_len; - urb->interval = interval; - - /* device pulled? Shortcut the action. */ - if (devgone == dev) { - dev->status = USB_ST_CRC_ERR; - return 0; - } - -#ifdef DEBUG - urb->actual_length = 0; - pkt_print(urb, dev, pipe, buffer, transfer_len, - setup, "SUB", usb_pipein(pipe)); -#else - wait_ms(1); -#endif - if (!maxsize) { - err("submit_common_message: pipesize for pipe %lx is zero", - pipe); - return -1; - } - - if (sohci_submit_job(urb, setup) < 0) { - err("sohci_submit_job failed"); - return -1; - } - -#if 0 - wait_ms(10); - /* ohci_dump_status(&gohci); */ -#endif - - /* allow more time for a BULK device to react - some are slow */ -#define BULK_TO 5000 /* timeout in milliseconds */ - if (usb_pipebulk(pipe)) - timeout = BULK_TO; - else - timeout = 100; - - /* wait for it to complete */ - for (;;) { - /* check whether the controller is done */ - stat = hc_interrupt(); - if (stat < 0) { - stat = USB_ST_CRC_ERR; - break; - } - - /* NOTE: since we are not interrupt driven in U-Boot and always - * handle only one URB at a time, we cannot assume the - * transaction finished on the first successful return from - * hc_interrupt().. unless the flag for current URB is set, - * meaning that all TD's to/from device got actually - * transferred and processed. If the current URB is not - * finished we need to re-iterate this loop so as - * hc_interrupt() gets called again as there needs to be some - * more TD's to process still */ - if ((stat >= 0) && (stat != 0xff) && (urb->finished)) { - /* 0xff is returned for an SF-interrupt */ - break; - } - - if (--timeout) { - wait_ms(1); - if (!urb->finished) - dbg("*"); - - } else { - err("CTL:TIMEOUT "); - dbg("submit_common_msg: TO status %x\n", stat); - urb->finished = 1; - stat = USB_ST_CRC_ERR; - break; - } - } - - dev->status = stat; - dev->act_len = transfer_len; - -#ifdef DEBUG - pkt_print(urb, dev, pipe, buffer, transfer_len, - setup, "RET(ctlr)", usb_pipein(pipe)); -#else - wait_ms(1); -#endif - - /* free TDs in urb_priv */ - if (!usb_pipeint(pipe)) - urb_free_priv(urb); - return 0; -} - -/* submit routines called from usb.c */ -int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len) -{ - info("submit_bulk_msg"); - return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, 0); -} - -int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len, struct devrequest *setup) -{ - int maxsize = usb_maxpacket(dev, pipe); - - info("submit_control_msg"); -#ifdef DEBUG - pkt_print(NULL, dev, pipe, buffer, transfer_len, - setup, "SUB", usb_pipein(pipe)); -#else - wait_ms(1); -#endif - if (!maxsize) { - err("submit_control_message: pipesize for pipe %lx is zero", - pipe); - return -1; - } - if (((pipe >> 8) & 0x7f) == gohci.rh.devnum) { - gohci.rh.dev = dev; - /* root hub - redirect */ - return ohci_submit_rh_msg(dev, pipe, buffer, transfer_len, - setup); - } - - return submit_common_msg(dev, pipe, buffer, transfer_len, setup, 0); -} - -int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len, int interval) -{ - info("submit_int_msg"); - return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, - interval); -} - -/*-------------------------------------------------------------------------* - * HC functions - *-------------------------------------------------------------------------*/ - -/* reset the HC and BUS */ - -static int hc_reset(ohci_t *ohci) -{ -#ifdef CONFIG_PCI_EHCI_DEVNO - pci_dev_t pdev; -#endif - int timeout = 30; - int smm_timeout = 50; /* 0,5 sec */ - - dbg("%s\n", __FUNCTION__); - -#ifdef CONFIG_PCI_EHCI_DEVNO - /* - * Some multi-function controllers (e.g. ISP1562) allow root hub - * resetting via EHCI registers only. - */ - pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVNO); - if (pdev != -1) { - u32 base; - int timeout = 1000; - - pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &base); - writel(readl(base + EHCI_USBCMD_OFF) | EHCI_USBCMD_HCRESET, - base + EHCI_USBCMD_OFF); - - while (readl(base + EHCI_USBCMD_OFF) & EHCI_USBCMD_HCRESET) { - if (timeout-- <= 0) { - printf("USB RootHub reset timed out!"); - break; - } - udelay(1); - } - } else - printf("No EHCI func at %d index!\n", CONFIG_PCI_EHCI_DEVNO); -#endif - if (readl(&ohci->regs->control) & OHCI_CTRL_IR) { - /* SMM owns the HC */ - writel(OHCI_OCR, &ohci->regs->cmdstatus);/* request ownership */ - info("USB HC TakeOver from SMM"); - while (readl(&ohci->regs->control) & OHCI_CTRL_IR) { - wait_ms(10); - if (--smm_timeout == 0) { - err("USB HC TakeOver failed!"); - return -1; - } - } - } - - /* Disable HC interrupts */ - writel(OHCI_INTR_MIE, &ohci->regs->intrdisable); - - dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;\n", - ohci->slot_name, - readl(&ohci->regs->control)); - - /* Reset USB (needed by some controllers) */ - ohci->hc_control = 0; - writel(ohci->hc_control, &ohci->regs->control); - - /* HC Reset requires max 10 us delay */ - writel(OHCI_HCR, &ohci->regs->cmdstatus); - while ((readl(&ohci->regs->cmdstatus) & OHCI_HCR) != 0) { - if (--timeout == 0) { - err("USB HC reset timed out!"); - return -1; - } - udelay(1); - } - return 0; -} - -/*-------------------------------------------------------------------------*/ - -/* Start an OHCI controller, set the BUS operational - * enable interrupts - * connect the virtual root hub */ - -static int hc_start(ohci_t *ohci) -{ - __u32 mask; - unsigned int fminterval; - - ohci->disabled = 1; - - /* Tell the controller where the control and bulk lists are - * The lists are empty now. */ - - writel(0, &ohci->regs->ed_controlhead); - writel(0, &ohci->regs->ed_bulkhead); - - writel((__u32)ohci->hcca, &ohci->regs->hcca); /* a reset clears this */ - - fminterval = 0x2edf; - writel((fminterval * 9) / 10, &ohci->regs->periodicstart); - fminterval |= ((((fminterval - 210) * 6) / 7) << 16); - writel(fminterval, &ohci->regs->fminterval); - writel(0x628, &ohci->regs->lsthresh); - - /* start controller operations */ - ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER; - ohci->disabled = 0; - writel(ohci->hc_control, &ohci->regs->control); - - /* disable all interrupts */ - mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD | - OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC | - OHCI_INTR_OC | OHCI_INTR_MIE); - writel(mask, &ohci->regs->intrdisable); - /* clear all interrupts */ - mask &= ~OHCI_INTR_MIE; - writel(mask, &ohci->regs->intrstatus); - /* Choose the interrupts we care about now - but w/o MIE */ - mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO; - writel(mask, &ohci->regs->intrenable); - -#ifdef OHCI_USE_NPS - /* required for AMD-756 and some Mac platforms */ - writel((roothub_a(ohci) | RH_A_NPS) & ~RH_A_PSM, - &ohci->regs->roothub.a); - writel(RH_HS_LPSC, &ohci->regs->roothub.status); -#endif /* OHCI_USE_NPS */ - -#define mdelay(n) ({unsigned long msec = (n); while (msec--) udelay(1000); }) - /* POTPGT delay is bits 24-31, in 2 ms units. */ - mdelay((roothub_a(ohci) >> 23) & 0x1fe); - - /* connect the virtual root hub */ - ohci->rh.devnum = 0; - - return 0; -} - -/*-------------------------------------------------------------------------*/ - -/* Poll USB interrupt. */ -void usb_event_poll(void) -{ - hc_interrupt(); -} - -/* an interrupt happens */ - -static int hc_interrupt(void) -{ - ohci_t *ohci = &gohci; - struct ohci_regs *regs = ohci->regs; - int ints; - int stat = -1; - - if ((ohci->hcca->done_head != 0) && - !(m32_swap(ohci->hcca->done_head) & 0x01)) { - ints = OHCI_INTR_WDH; - } else { - ints = readl(®s->intrstatus); - if (ints == ~(u32)0) { - ohci->disabled++; - err("%s device removed!", ohci->slot_name); - return -1; - } else { - ints &= readl(®s->intrenable); - if (ints == 0) { - dbg("hc_interrupt: returning..\n"); - return 0xff; - } - } - } - - /* dbg("Interrupt: %x frame: %x", ints, - le16_to_cpu(ohci->hcca->frame_no)); */ - - if (ints & OHCI_INTR_RHSC) - stat = 0xff; - - if (ints & OHCI_INTR_UE) { - ohci->disabled++; - err("OHCI Unrecoverable Error, controller usb-%s disabled", - ohci->slot_name); - /* e.g. due to PCI Master/Target Abort */ - -#ifdef DEBUG - ohci_dump(ohci, 1); -#else - wait_ms(1); -#endif - /* FIXME: be optimistic, hope that bug won't repeat often. */ - /* Make some non-interrupt context restart the controller. */ - /* Count and limit the retries though; either hardware or */ - /* software errors can go forever... */ - hc_reset(ohci); - return -1; - } - - if (ints & OHCI_INTR_WDH) { - wait_ms(1); - writel(OHCI_INTR_WDH, ®s->intrdisable); - (void)readl(®s->intrdisable); /* flush */ - stat = dl_done_list(&gohci); - writel(OHCI_INTR_WDH, ®s->intrenable); - (void)readl(®s->intrdisable); /* flush */ - } - - if (ints & OHCI_INTR_SO) { - dbg("USB Schedule overrun\n"); - writel(OHCI_INTR_SO, ®s->intrenable); - stat = -1; - } - - /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */ - if (ints & OHCI_INTR_SF) { - unsigned int frame = m16_swap(ohci->hcca->frame_no) & 1; - wait_ms(1); - writel(OHCI_INTR_SF, ®s->intrdisable); - if (ohci->ed_rm_list[frame] != NULL) - writel(OHCI_INTR_SF, ®s->intrenable); - stat = 0xff; - } - - writel(ints, ®s->intrstatus); - return stat; -} - -/*-------------------------------------------------------------------------*/ - -/*-------------------------------------------------------------------------*/ - -/* De-allocate all resources.. */ - -static void hc_release_ohci(ohci_t *ohci) -{ - dbg("USB HC release ohci usb-%s", ohci->slot_name); - - if (!ohci->disabled) - hc_reset(ohci); -} - -/*-------------------------------------------------------------------------*/ - -/* - * low level initalisation routine, called from usb.c - */ -static char ohci_inited = 0; - -int usb_lowlevel_init(void) -{ -#ifdef CONFIG_PCI_OHCI - pci_dev_t pdev; -#endif - -#ifdef CONFIG_SYS_USB_OHCI_CPU_INIT - /* cpu dependant init */ - if (usb_cpu_init()) - return -1; -#endif - -#ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT - /* board dependant init */ - if (usb_board_init()) - return -1; -#endif - memset(&gohci, 0, sizeof(ohci_t)); - - /* align the storage */ - if ((__u32)&ghcca[0] & 0xff) { - err("HCCA not aligned!!"); - return -1; - } - phcca = &ghcca[0]; - info("aligned ghcca %p", phcca); - memset(&ohci_dev, 0, sizeof(struct ohci_device)); - if ((__u32)&ohci_dev.ed[0] & 0x7) { - err("EDs not aligned!!"); - return -1; - } - memset(gtd, 0, sizeof(td_t) * (NUM_TD + 1)); - if ((__u32)gtd & 0x7) { - err("TDs not aligned!!"); - return -1; - } - ptd = gtd; - gohci.hcca = phcca; - memset(phcca, 0, sizeof(struct ohci_hcca)); - - gohci.disabled = 1; - gohci.sleeping = 0; - gohci.irq = -1; -#ifdef CONFIG_PCI_OHCI - pdev = pci_find_devices(ohci_pci_ids, CONFIG_PCI_OHCI_DEVNO); - - if (pdev != -1) { - u16 vid, did; - u32 base; - pci_read_config_word(pdev, PCI_VENDOR_ID, &vid); - pci_read_config_word(pdev, PCI_DEVICE_ID, &did); - printf("OHCI pci controller (%04x, %04x) found @(%d:%d:%d)\n", - vid, did, (pdev >> 16) & 0xff, - (pdev >> 11) & 0x1f, (pdev >> 8) & 0x7); - pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &base); - printf("OHCI regs address 0x%08x\n", base); - gohci.regs = (struct ohci_regs *)base; - } else - return -1; -#else - gohci.regs = (struct ohci_regs *)CONFIG_SYS_USB_OHCI_REGS_BASE; -#endif - - gohci.flags = 0; - gohci.slot_name = CONFIG_SYS_USB_OHCI_SLOT_NAME; - - if (hc_reset (&gohci) < 0) { - hc_release_ohci (&gohci); - err ("can't reset usb-%s", gohci.slot_name); -#ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT - /* board dependant cleanup */ - usb_board_init_fail(); -#endif - -#ifdef CONFIG_SYS_USB_OHCI_CPU_INIT - /* cpu dependant cleanup */ - usb_cpu_init_fail(); -#endif - return -1; - } - - if (hc_start(&gohci) < 0) { - err("can't start usb-%s", gohci.slot_name); - hc_release_ohci(&gohci); - /* Initialization failed */ -#ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT - /* board dependant cleanup */ - usb_board_stop(); -#endif - -#ifdef CONFIG_SYS_USB_OHCI_CPU_INIT - /* cpu dependant cleanup */ - usb_cpu_stop(); -#endif - return -1; - } - -#ifdef DEBUG - ohci_dump(&gohci, 1); -#else - wait_ms(1); -#endif - ohci_inited = 1; - return 0; -} - -int usb_lowlevel_stop(void) -{ - /* this gets called really early - before the controller has */ - /* even been initialized! */ - if (!ohci_inited) - return 0; - /* TODO release any interrupts, etc. */ - /* call hc_release_ohci() here ? */ - hc_reset(&gohci); - -#ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT - /* board dependant cleanup */ - if (usb_board_stop()) - return -1; -#endif - -#ifdef CONFIG_SYS_USB_OHCI_CPU_INIT - /* cpu dependant cleanup */ - if (usb_cpu_stop()) - return -1; -#endif - /* This driver is no longer initialised. It needs a new low-level - * init (board/cpu) before it can be used again. */ - ohci_inited = 0; - return 0; -} |