diff options
Diffstat (limited to 'cpu/arm920t/s3c24x0')
| -rw-r--r-- | cpu/arm920t/s3c24x0/Makefile | 50 | ||||
| -rw-r--r-- | cpu/arm920t/s3c24x0/interrupts.c | 42 | ||||
| -rw-r--r-- | cpu/arm920t/s3c24x0/speed.c | 98 | ||||
| -rw-r--r-- | cpu/arm920t/s3c24x0/timer.c | 223 | ||||
| -rw-r--r-- | cpu/arm920t/s3c24x0/usb.c | 71 | ||||
| -rw-r--r-- | cpu/arm920t/s3c24x0/usb_ohci.c | 1755 | ||||
| -rw-r--r-- | cpu/arm920t/s3c24x0/usb_ohci.h | 409 |
7 files changed, 0 insertions, 2648 deletions
diff --git a/cpu/arm920t/s3c24x0/Makefile b/cpu/arm920t/s3c24x0/Makefile deleted file mode 100644 index 7e8d6ed..0000000 --- a/cpu/arm920t/s3c24x0/Makefile +++ /dev/null @@ -1,50 +0,0 @@ -# -# (C) Copyright 2000-2006 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# 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 -# - -include $(TOPDIR)/config.mk - -LIB = $(obj)lib$(SOC).a - -COBJS-$(CONFIG_USE_IRQ) += interrupts.o -COBJS-y += speed.o -COBJS-y += timer.o -COBJS-y += usb.o -COBJS-y += usb_ohci.o - - -SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c) -OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS-y)) - -all: $(obj).depend $(LIB) - -$(LIB): $(OBJS) - $(AR) $(ARFLAGS) $@ $(OBJS) - -######################################################################### - -# defines $(obj).depend target -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend - -######################################################################### diff --git a/cpu/arm920t/s3c24x0/interrupts.c b/cpu/arm920t/s3c24x0/interrupts.c deleted file mode 100644 index 879fda6..0000000 --- a/cpu/arm920t/s3c24x0/interrupts.c +++ /dev/null @@ -1,42 +0,0 @@ -/* - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Alex Zuepke <azu@sysgo.de> - * - * (C) Copyright 2002 - * Gary Jennejohn, DENX Software Engineering, <gj@denx.de> - * - * 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 - */ - -#include <common.h> - -#include <asm/arch/s3c24x0_cpu.h> -#include <asm/proc-armv/ptrace.h> - -void do_irq (struct pt_regs *pt_regs) -{ - struct s3c24x0_interrupt *irq = s3c24x0_get_base_interrupt(); - u_int32_t intpnd = readl(&irq->INTPND); - -} diff --git a/cpu/arm920t/s3c24x0/speed.c b/cpu/arm920t/s3c24x0/speed.c deleted file mode 100644 index b13283a..0000000 --- a/cpu/arm920t/s3c24x0/speed.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * (C) Copyright 2001-2004 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2002 - * David Mueller, ELSOFT AG, d.mueller@elsoft.ch - * - * 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 - */ - -/* This code should work for both the S3C2400 and the S3C2410 - * as they seem to have the same PLL and clock machinery inside. - * The different address mapping is handled by the s3c24xx.h files below. - */ - -#include <common.h> -#ifdef CONFIG_S3C24X0 - -#include <asm/io.h> -#include <asm/arch/s3c24x0_cpu.h> - -#define MPLL 0 -#define UPLL 1 - -/* ------------------------------------------------------------------------- */ -/* NOTE: This describes the proper use of this file. - * - * CONFIG_SYS_CLK_FREQ should be defined as the input frequency of the PLL. - * - * get_FCLK(), get_HCLK(), get_PCLK() and get_UCLK() return the clock of - * the specified bus in HZ. - */ -/* ------------------------------------------------------------------------- */ - -static ulong get_PLLCLK(int pllreg) -{ - struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power(); - ulong r, m, p, s; - - if (pllreg == MPLL) - r = readl(&clk_power->MPLLCON); - else if (pllreg == UPLL) - r = readl(&clk_power->UPLLCON); - else - hang(); - - m = ((r & 0xFF000) >> 12) + 8; - p = ((r & 0x003F0) >> 4) + 2; - s = r & 0x3; - - return (CONFIG_SYS_CLK_FREQ * m) / (p << s); -} - -/* return FCLK frequency */ -ulong get_FCLK(void) -{ - return get_PLLCLK(MPLL); -} - -/* return HCLK frequency */ -ulong get_HCLK(void) -{ - struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power(); - - return (readl(&clk_power->CLKDIVN) & 2) ? get_FCLK() / 2 : get_FCLK(); -} - -/* return PCLK frequency */ -ulong get_PCLK(void) -{ - struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power(); - - return (readl(&clk_power->CLKDIVN) & 1) ? get_HCLK() / 2 : get_HCLK(); -} - -/* return UCLK frequency */ -ulong get_UCLK(void) -{ - return get_PLLCLK(UPLL); -} - -#endif /* CONFIG_S3C24X0 */ diff --git a/cpu/arm920t/s3c24x0/timer.c b/cpu/arm920t/s3c24x0/timer.c deleted file mode 100644 index 7d47354..0000000 --- a/cpu/arm920t/s3c24x0/timer.c +++ /dev/null @@ -1,223 +0,0 @@ -/* - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Alex Zuepke <azu@sysgo.de> - * - * (C) Copyright 2002 - * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> - * - * 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 - */ - -#include <common.h> -#ifdef CONFIG_S3C24X0 - -#include <asm/io.h> -#include <asm/arch/s3c24x0_cpu.h> - -int timer_load_val = 0; -static ulong timer_clk; - -/* macro to read the 16 bit timer */ -static inline ulong READ_TIMER(void) -{ - struct s3c24x0_timers *timers = s3c24x0_get_base_timers(); - - return readl(&timers->TCNTO4) & 0xffff; -} - -static ulong timestamp; -static ulong lastdec; - -int timer_init(void) -{ - struct s3c24x0_timers *timers = s3c24x0_get_base_timers(); - ulong tmr; - - /* use PWM Timer 4 because it has no output */ - /* prescaler for Timer 4 is 16 */ - writel(0x0f00, &timers->TCFG0); - if (timer_load_val == 0) { - /* - * for 10 ms clock period @ PCLK with 4 bit divider = 1/2 - * (default) and prescaler = 16. Should be 10390 - * @33.25MHz and 15625 @ 50 MHz - */ - timer_load_val = get_PCLK() / (2 * 16 * 100); - timer_clk = get_PCLK() / (2 * 16); - } - /* load value for 10 ms timeout */ - lastdec = timer_load_val; - writel(timer_load_val, &timers->TCNTB4); - /* auto load, manual update of Timer 4 */ - tmr = (readl(&timers->TCON) & ~0x0700000) | 0x0600000; - writel(tmr, &timers->TCON); - /* auto load, start Timer 4 */ - tmr = (tmr & ~0x0700000) | 0x0500000; - writel(tmr, &timers->TCON); - timestamp = 0; - - return (0); -} - -/* - * timer without interrupts - */ - -void reset_timer(void) -{ - reset_timer_masked(); -} - -ulong get_timer(ulong base) -{ - return get_timer_masked() - base; -} - -void set_timer(ulong t) -{ - timestamp = t; -} - -void __udelay (unsigned long usec) -{ - ulong tmo; - ulong start = get_ticks(); - - tmo = usec / 1000; - tmo *= (timer_load_val * 100); - tmo /= 1000; - - while ((ulong) (get_ticks() - start) < tmo) - /*NOP*/; -} - -void reset_timer_masked(void) -{ - /* reset time */ - lastdec = READ_TIMER(); - timestamp = 0; -} - -ulong get_timer_masked(void) -{ - ulong tmr = get_ticks(); - - return tmr / (timer_clk / CONFIG_SYS_HZ); -} - -void udelay_masked(unsigned long usec) -{ - ulong tmo; - ulong endtime; - signed long diff; - - if (usec >= 1000) { - tmo = usec / 1000; - tmo *= (timer_load_val * 100); - tmo /= 1000; - } else { - tmo = usec * (timer_load_val * 100); - tmo /= (1000 * 1000); - } - - endtime = get_ticks() + tmo; - - do { - ulong now = get_ticks(); - diff = endtime - now; - } while (diff >= 0); -} - -/* - * This function is derived from PowerPC code (read timebase as long long). - * On ARM it just returns the timer value. - */ -unsigned long long get_ticks(void) -{ - ulong now = READ_TIMER(); - - if (lastdec >= now) { - /* normal mode */ - timestamp += lastdec - now; - } else { - /* we have an overflow ... */ - timestamp += lastdec + timer_load_val - now; - } - lastdec = now; - - return timestamp; -} - -/* - * This function is derived from PowerPC code (timebase clock frequency). - * On ARM it returns the number of timer ticks per second. - */ -ulong get_tbclk(void) -{ - ulong tbclk; - -#if defined(CONFIG_SMDK2400) || defined(CONFIG_TRAB) - tbclk = timer_load_val * 100; -#elif defined(CONFIG_SBC2410X) || \ - defined(CONFIG_SMDK2410) || \ - defined(CONFIG_VCMA9) - tbclk = CONFIG_SYS_HZ; -#else -# error "tbclk not configured" -#endif - - return tbclk; -} - -/* - * reset the cpu by setting up the watchdog timer and let him time out - */ -void reset_cpu(ulong ignored) -{ - struct s3c24x0_watchdog *watchdog; - -#ifdef CONFIG_TRAB - extern void disable_vfd(void); - - disable_vfd(); -#endif - - watchdog = s3c24x0_get_base_watchdog(); - - /* Disable watchdog */ - writel(0x0000, &watchdog->WTCON); - - /* Initialize watchdog timer count register */ - writel(0x0001, &watchdog->WTCNT); - - /* Enable watchdog timer; assert reset at timer timeout */ - writel(0x0021, &watchdog->WTCON); - - while (1) - /* loop forever and wait for reset to happen */; - - /*NOTREACHED*/ -} - -#endif /* CONFIG_S3C24X0 */ diff --git a/cpu/arm920t/s3c24x0/usb.c b/cpu/arm920t/s3c24x0/usb.c deleted file mode 100644 index e468ed0..0000000 --- a/cpu/arm920t/s3c24x0/usb.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * (C) Copyright 2006 - * DENX Software Engineering <mk@denx.de> - * - * 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 - */ - -#include <common.h> - -#if defined(CONFIG_USB_OHCI_NEW) && \ - defined(CONFIG_SYS_USB_OHCI_CPU_INIT) && \ - defined(CONFIG_S3C24X0) - -#include <asm/arch/s3c24x0_cpu.h> -#include <asm/io.h> - -int usb_cpu_init(void) -{ - struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power(); - struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio(); - - /* - * Set the 48 MHz UPLL clocking. Values are taken from - * "PLL value selection guide", 6-23, s3c2400_UM.pdf. - */ - writel((40 << 12) + (1 << 4) + 2, &clk_power->UPLLCON); - /* 1 = use pads related USB for USB host */ - writel(readl(&gpio->MISCCR) | 0x8, &gpio->MISCCR); - - /* - * Enable USB host clock. - */ - writel(readl(&clk_power->CLKCON) | (1 << 4), &clk_power->CLKCON); - - return 0; -} - -int usb_cpu_stop(void) -{ - struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power(); - /* may not want to do this */ - writel(readl(&clk_power->CLKCON) & ~(1 << 4), &clk_power->CLKCON); - return 0; -} - -int usb_cpu_init_fail(void) -{ - struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power(); - writel(readl(&clk_power->CLKCON) & ~(1 << 4), &clk_power->CLKCON); - return 0; -} - -#endif /* defined(CONFIG_USB_OHCI_NEW) && \ - defined(CONFIG_SYS_USB_OHCI_CPU_INIT) && \ - defined(CONFIG_S3C24X0) */ diff --git a/cpu/arm920t/s3c24x0/usb_ohci.c b/cpu/arm920t/s3c24x0/usb_ohci.c deleted file mode 100644 index 5aa8d64..0000000 --- a/cpu/arm920t/s3c24x0/usb_ohci.c +++ /dev/null @@ -1,1755 +0,0 @@ -/* - * URB OHCI HCD (Host Controller Driver) for USB on the S3C2400. - * - * (C) Copyright 2003 - * Gary Jennejohn, DENX Software Engineering <garyj@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 - * - * 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 - this driver is intended for use with USB Mass Storage Devices - * (BBB) ONLY. There is NO support for Interrupt or Isochronous pipes! - */ - -#include <common.h> -/* #include <pci.h> no PCI on the S3C24X0 */ - -#if defined(CONFIG_USB_OHCI) && defined(CONFIG_S3C24X0) - -#include <asm/arch/s3c24x0_cpu.h> -#include <asm/io.h> -#include <malloc.h> -#include <usb.h> -#include "usb_ohci.h" - -#define OHCI_USE_NPS /* force NoPowerSwitching mode */ -#undef OHCI_VERBOSE_DEBUG /* not always helpful */ - - -/* For initializing controller (mask in an HCFS mode too) */ -#define OHCI_CONTROL_INIT \ - (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE - -#define min_t(type, x, y) \ - ({ type __x = (x); type __y = (y); __x < __y ? __x : __y; }) - -#undef DEBUG -#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) -#undef SHOW_INFO -#ifdef SHOW_INFO -#define info(format, arg...) printf("INFO: " format "\n", ## arg) -#else -#define info(format, arg...) do {} while(0) -#endif - -#define m16_swap(x) swap_16(x) -#define m32_swap(x) swap_32(x) - -/* global struct ohci */ -static struct ohci 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; -/* urb_priv */ -struct urb_priv urb_priv; -/* RHSC flag */ -int got_rhsc; -/* device which was disconnected */ -struct usb_device *devgone; -/* flag guarding URB transation */ -int urb_finished = 0; - -/*-------------------------------------------------------------------------*/ - -/* AMD-756 (D2 rev) reports corrupt register contents in some cases. - * The erratum (#4) description is incorrect. AMD's workaround waits - * till some bits (mostly reserved) are clear; ok for all revs. - */ -#define OHCI_QUIRK_AMD756 0xabcd -#define read_roothub(hc, register, mask) ({ \ - u32 temp = readl (&hc->regs->roothub.register); \ - if (hc->flags & OHCI_QUIRK_AMD756) \ - while (temp & mask) \ - temp = readl (&hc->regs->roothub.register); \ - temp; }) - -static u32 roothub_a(struct ohci *hc) -{ - return read_roothub(hc, a, 0xfc0fe000); -} -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 u32 roothub_portstatus(struct ohci *hc, int i) -{ - return read_roothub(hc, portstatus[i], 0xffe0fce0); -} - -/* 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, struct urb_priv *urb, - int interval); - -/*-------------------------------------------------------------------------* - * URB support functions - *-------------------------------------------------------------------------*/ - -/* free HCD-private data associated with this URB */ - -static void urb_free_priv(struct urb_priv *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; - } - } - } -} - -/*-------------------------------------------------------------------------*/ - -#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(struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len, struct devrequest *setup, char *str, - int small) -{ - struct urb_priv *purb = &urb_priv; - - dbg("%s URB:[%4x] dev:%2d,ep:%2d-%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->actual_length, 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->actual_length, transfer_len); - len = usb_pipeout(pipe) ? - transfer_len : purb->actual_length; - 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(struct ohci *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--) { - struct ed *ed = (struct ed *) 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) -{ - struct ed *edp = (struct ed *) 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(struct ohci *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(struct ohci *controller, int verbose) -{ - __u32 temp, ndp, i; - - temp = roothub_a(controller); - ndp = (temp & RH_A_NDP); - - 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(struct ohci *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(struct usb_device *dev, unsigned long pipe, void *buffer, - int transfer_len, struct devrequest *setup, int interval) -{ - struct ohci *ohci; - struct ed *ed; - struct urb_priv *purb_priv; - int i, size = 0; - - 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; - } - - /* if we have an unfinished URB from previous transaction let's - * fail and scream as quickly as possible so as not to corrupt - * further communication */ - if (!urb_finished) { - err("sohci_submit_job: URB NOT FINISHED"); - 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); - 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; - } - - if (size >= (N_URB_TD - 1)) { - err("need %d TDs, only have %d", size, N_URB_TD); - return -1; - } - purb_priv = &urb_priv; - 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; -} - -/*-------------------------------------------------------------------------*/ - -#ifdef DEBUG -/* tell us the current USB frame number */ - -static int sohci_get_current_frame_number(struct usb_device *usb_dev) -{ - struct ohci *ohci = &gohci; - - return m16_swap(ohci->hcca->frame_no); -} -#endif - -/*-------------------------------------------------------------------------* - * ED handling functions - *-------------------------------------------------------------------------*/ - -/* link an ed into one of the HC chains */ - -static int ep_link(struct ohci *ohci, struct ed *edi) -{ - struct ed *ed = edi; - - ed->state = ED_OPER; - - switch (ed->type) { - case PIPE_CONTROL: - ed->hwNextED = 0; - if (ohci->ed_controltail == NULL) { - writel((u32)ed, &ohci->regs->ed_controlhead); - } else { - ohci->ed_controltail->hwNextED = (__u32) m32_swap(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((u32)ed, &ohci->regs->ed_bulkhead); - } else { - ohci->ed_bulktail->hwNextED = (__u32) m32_swap(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; - } - return 0; -} - -/*-------------------------------------------------------------------------*/ - -/* 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(struct ohci *ohci, struct ed *ed) -{ - struct ed *next; - 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 { - next = (struct ed *)m32_swap(*((__u32 *)&ed->hwNextED)); - next->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 { - next = (struct ed *)m32_swap(*((__u32 *)&ed->hwNextED)); - next->ed_prev = ed->ed_prev; - } - 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 struct ed *ep_add_ed(struct usb_device *usb_dev, unsigned long pipe) -{ - struct td *td; - struct ed *ed_ret; - struct ed *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) { - ed->hwINFO = m32_swap(OHCI_ED_SKIP); /* skip ed */ - /* dummy td; end of td list for ed */ - td = td_alloc(usb_dev); - ed->hwTailP = (__u32) m32_swap(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); - - return ed_ret; -} - -/*-------------------------------------------------------------------------* - * TD handling functions - *-------------------------------------------------------------------------*/ - -/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */ - -static void td_fill(struct ohci *ohci, unsigned int info, void *data, int len, - struct usb_device *dev, int index, - struct urb_priv *urb_priv) -{ - struct td *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] = - (struct td *) (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 = (__u32) m32_swap(info); - td->hwCBP = (__u32) m32_swap(data); - if (data) - td->hwBE = (__u32) m32_swap(data + len - 1); - else - td->hwBE = 0; - td->hwNextTD = (__u32) m32_swap(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, struct urb_priv *urb, - int interval) -{ - struct ohci *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: - info = TD_CC | TD_DP_SETUP | TD_T_DATA0; - td_fill(ohci, info, setup, 8, dev, cnt++, urb); - 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); - } - 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; - } - 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(struct td *td) -{ - __u32 tdINFO, tdBE, tdCBP; - struct urb_priv *lurb_priv = &urb_priv; - - 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; - } - } -} - -/*-------------------------------------------------------------------------*/ - -/* replies to the request have to be on a FIFO basis so - * we reverse the reversed done-list */ - -static struct td *dl_reverse_done_list(struct ohci *ohci) -{ - __u32 td_list_hc; - __u32 tmp; - struct td *td_rev = NULL; - struct td *td_list = NULL; - struct urb_priv *lurb_priv = NULL; - - td_list_hc = m32_swap(ohci->hcca->done_head) & 0xfffffff0; - ohci->hcca->done_head = 0; - - while (td_list_hc) { - td_list = (struct td *) td_list_hc; - - if (TD_CC_GET(m32_swap(td_list->hwINFO))) { - lurb_priv = &urb_priv; - dbg(" USB-error/status: %x : %p", - TD_CC_GET(m32_swap(td_list->hwINFO)), td_list); - if (td_list->ed->hwHeadP & m32_swap(0x1)) { - if (lurb_priv && - ((td_list->index+1) < lurb_priv->length)) { - tmp = lurb_priv->length - 1; - td_list->ed->hwHeadP = - (lurb_priv->td[tmp]->hwNextTD & - m32_swap(0xfffffff0)) | - (td_list->ed->hwHeadP & - m32_swap(0x2)); - lurb_priv->td_cnt += lurb_priv->length - - td_list->index - 1; - } else - td_list->ed->hwHeadP &= - m32_swap(0xfffffff2); - } - } - - td_list->next_dl_td = td_rev; - td_rev = td_list; - td_list_hc = m32_swap(td_list->hwNextTD) & 0xfffffff0; - } - - return td_list; -} - -/*-------------------------------------------------------------------------*/ - -/* td done list */ -static int dl_done_list(struct ohci *ohci, struct td *td_list) -{ - struct td *td_list_next = NULL; - struct ed *ed; - int cc = 0; - int stat = 0; - /* urb_t *urb; */ - struct urb_priv *lurb_priv; - __u32 tdINFO, edHeadP, edTailP; - - while (td_list) { - td_list_next = td_list->next_dl_td; - - lurb_priv = &urb_priv; - tdINFO = m32_swap(td_list->hwINFO); - - ed = td_list->ed; - - dl_transfer_length(td_list); - - /* error code of transfer */ - cc = TD_CC_GET(tdINFO); - if (cc != 0) { - dbg("ConditionCode %#x", cc); - stat = cc_to_error[cc]; - } - - /* see if this done list makes for all TD's of current URB, - * and mark the URB finished if so */ - if (++(lurb_priv->td_cnt) == lurb_priv->length) { - if ((ed->state & (ED_OPER | ED_UNLINK))) - urb_finished = 1; - else - dbg("dl_done_list: strange.., ED state %x, " - "ed->state\n"); - } else - dbg("dl_done_list: processing TD %x, len %x\n", - lurb_priv->td_cnt, lurb_priv->length); - - if (ed->state != ED_NEW) { - 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); - } - - td_list = td_list_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(struct ohci *controller) -{ - __u32 temp, ndp, i; - int res; - - res = -1; - temp = roothub_a(controller); - ndp = (temp & RH_A_NDP); - 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 - urb_priv.actual_length = 0; - pkt_print(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 = m16_swap(cmd->value); - wIndex = m16_swap(cmd->index); - wLength = m16_swap(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 = m16_swap(1); - OK(2); - case RH_GET_STATUS | RH_INTERFACE: - *(__u16 *) data_buf = m16_swap(0); - OK(2); - case RH_GET_STATUS | RH_ENDPOINT: - *(__u16 *) data_buf = m16_swap(0); - OK(2); - case RH_GET_STATUS | RH_CLASS: - *(__u32 *) data_buf = - m32_swap(RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE)); - OK(4); - case RH_GET_STATUS | RH_OTHER | RH_CLASS: - *(__u32 *) data_buf = m32_swap(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); - 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; - 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 - if (transfer_len) - urb_priv.actual_length = transfer_len; - pkt_print(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; - - /* device pulled? Shortcut the action. */ - if (devgone == dev) { - dev->status = USB_ST_CRC_ERR; - return 0; - } -#ifdef DEBUG - urb_priv.actual_length = 0; - pkt_print(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(dev, pipe, buffer, transfer_len, setup, interval) < - 0) { - err("sohci_submit_job failed"); - return -1; - } - - wait_ms(10); - /* ohci_dump_status(&gohci); */ - - /* 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); - stat = USB_ST_CRC_ERR; - urb_finished = 1; - break; - } - } - -#if 0 - /* we got an Root Hub Status Change interrupt */ - if (got_rhsc) { -#ifdef DEBUG - ohci_dump_roothub(&gohci, 1); -#endif - got_rhsc = 0; - /* abuse timeout */ - timeout = rh_check_port_status(&gohci); - if (timeout >= 0) { -#if 0 /* this does nothing useful, but leave it here - in case that changes */ - /* the called routine adds 1 to the passed value */ - usb_hub_port_connect_change(gohci.rh.dev, timeout - 1); -#endif - /* - * XXX - * This is potentially dangerous because it assumes - * that only one device is ever plugged in! - */ - devgone = dev; - } - } -#endif - - dev->status = stat; - dev->act_len = transfer_len; - -#ifdef DEBUG - pkt_print(dev, pipe, buffer, transfer_len, setup, "RET(ctlr)", - usb_pipein(pipe)); -#else - wait_ms(1); -#endif - - /* free TDs in urb_priv */ - urb_free_priv(&urb_priv); - 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 - urb_priv.actual_length = 0; - pkt_print(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 -1; -} - -/*-------------------------------------------------------------------------* - * HC functions - *-------------------------------------------------------------------------*/ - -/* reset the HC and BUS */ - -static int hc_reset(struct ohci *ohci) -{ - int timeout = 30; - int smm_timeout = 50; /* 0,5 sec */ - - if (readl(&ohci->regs->control) & OHCI_CTRL_IR) { - /* SMM owns the HC - request ownership */ - writel(OHCI_OCR, &ohci->regs->cmdstatus); - 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 ;", - ohci->slot_name, readl(&ohci->regs->control)); - - /* Reset USB (needed by some controllers) */ - writel(0, &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(struct ohci *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); - - /* a reset clears this */ - writel((__u32) ohci->hcca, &ohci->regs->hcca); - - 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; -} - -/*-------------------------------------------------------------------------*/ - -/* an interrupt happens */ - -static int hc_interrupt(void) -{ - struct ohci *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; - } - 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) { - got_rhsc = 1; - 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); - stat = dl_done_list(&gohci, dl_reverse_done_list(&gohci)); - writel(OHCI_INTR_WDH, ®s->intrenable); - } - - 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(struct ohci *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) -{ - struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power(); - struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio(); - - /* - * Set the 48 MHz UPLL clocking. Values are taken from - * "PLL value selection guide", 6-23, s3c2400_UM.pdf. - */ - clk_power->UPLLCON = ((40 << 12) + (1 << 4) + 2); - gpio->MISCCR |= 0x8; /* 1 = use pads related USB for USB host */ - - /* - * Enable USB host clock. - */ - clk_power->CLKCON |= (1 << 4); - - memset(&gohci, 0, sizeof(struct ohci)); - memset(&urb_priv, 0, sizeof(struct urb_priv)); - - /* 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(struct td) * (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; - gohci.regs = (struct ohci_regs *)S3C24X0_USB_HOST_BASE; - - gohci.flags = 0; - gohci.slot_name = "s3c2400"; - - if (hc_reset(&gohci) < 0) { - hc_release_ohci(&gohci); - /* Initialization failed */ - clk_power->CLKCON &= ~(1 << 4); - return -1; - } - - /* FIXME this is a second HC reset; why?? */ - gohci.hc_control = OHCI_USB_RESET; - writel(gohci.hc_control, &gohci.regs->control); - wait_ms(10); - - if (hc_start(&gohci) < 0) { - err("can't start usb-%s", gohci.slot_name); - hc_release_ohci(&gohci); - /* Initialization failed */ - clk_power->CLKCON &= ~(1 << 4); - return -1; - } -#ifdef DEBUG - ohci_dump(&gohci, 1); -#else - wait_ms(1); -#endif - ohci_inited = 1; - urb_finished = 1; - - return 0; -} - -int usb_lowlevel_stop(void) -{ - struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power(); - - /* 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); - /* may not want to do this */ - clk_power->CLKCON &= ~(1 << 4); - return 0; -} - -#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_S3C24X0) */ diff --git a/cpu/arm920t/s3c24x0/usb_ohci.h b/cpu/arm920t/s3c24x0/usb_ohci.h deleted file mode 100644 index f272d78..0000000 --- a/cpu/arm920t/s3c24x0/usb_ohci.h +++ /dev/null @@ -1,409 +0,0 @@ -/* - * URB OHCI HCD (Host Controller Driver) for USB. - * - * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> - * (C) Copyright 2000-2001 David Brownell <dbrownell@users.sourceforge.net> - * - * usb-ohci.h - */ - - -static int cc_to_error[16] = { - -/* mapping of the OHCI CC status to error codes */ - /* No Error */ 0, - /* CRC Error */ USB_ST_CRC_ERR, - /* Bit Stuff */ USB_ST_BIT_ERR, - /* Data Togg */ USB_ST_CRC_ERR, - /* Stall */ USB_ST_STALLED, - /* DevNotResp */ -1, - /* PIDCheck */ USB_ST_BIT_ERR, - /* UnExpPID */ USB_ST_BIT_ERR, - /* DataOver */ USB_ST_BUF_ERR, - /* DataUnder */ USB_ST_BUF_ERR, - /* reservd */ -1, - /* reservd */ -1, - /* BufferOver */ USB_ST_BUF_ERR, - /* BuffUnder */ USB_ST_BUF_ERR, - /* Not Access */ -1, - /* Not Access */ -1 -}; - -/* ED States */ -#define ED_NEW 0x00 -#define ED_UNLINK 0x01 -#define ED_OPER 0x02 -#define ED_DEL 0x04 -#define ED_URB_DEL 0x08 - -/* usb_ohci_ed */ -struct ed { - __u32 hwINFO; - __u32 hwTailP; - __u32 hwHeadP; - __u32 hwNextED; - - struct ed *ed_prev; - __u8 int_period; - __u8 int_branch; - __u8 int_load; - __u8 int_interval; - __u8 state; - __u8 type; - __u16 last_iso; - struct ed *ed_rm_list; - - struct usb_device *usb_dev; - __u32 unused[3]; -} __attribute__ ((aligned(16))); - -/* TD info field */ -#define TD_CC 0xf0000000 -#define TD_CC_GET(td_p) (((td_p) >> 28) & 0x0f) -#define TD_CC_SET(td_p, cc) \ - {(td_p) = ((td_p) & 0x0fffffff) | (((cc) & 0x0f) << 28)} -#define TD_EC 0x0C000000 -#define TD_T 0x03000000 -#define TD_T_DATA0 0x02000000 -#define TD_T_DATA1 0x03000000 -#define TD_T_TOGGLE 0x00000000 -#define TD_R 0x00040000 -#define TD_DI 0x00E00000 -#define TD_DI_SET(X) (((X) & 0x07)<< 21) -#define TD_DP 0x00180000 -#define TD_DP_SETUP 0x00000000 -#define TD_DP_IN 0x00100000 -#define TD_DP_OUT 0x00080000 - -#define TD_ISO 0x00010000 -#define TD_DEL 0x00020000 - -/* CC Codes */ -#define TD_CC_NOERROR 0x00 -#define TD_CC_CRC 0x01 -#define TD_CC_BITSTUFFING 0x02 -#define TD_CC_DATATOGGLEM 0x03 -#define TD_CC_STALL 0x04 -#define TD_DEVNOTRESP 0x05 -#define TD_PIDCHECKFAIL 0x06 -#define TD_UNEXPECTEDPID 0x07 -#define TD_DATAOVERRUN 0x08 -#define TD_DATAUNDERRUN 0x09 -#define TD_BUFFEROVERRUN 0x0C -#define TD_BUFFERUNDERRUN 0x0D -#define TD_NOTACCESSED 0x0F - - -#define MAXPSW 1 - -struct td { - __u32 hwINFO; - __u32 hwCBP; /* Current Buffer Pointer */ - __u32 hwNextTD; /* Next TD Pointer */ - __u32 hwBE; /* Memory Buffer End Pointer */ - - __u8 unused; - __u8 index; - struct ed *ed; - struct td *next_dl_td; - struct usb_device *usb_dev; - int transfer_len; - __u32 data; - - __u32 unused2[2]; -} __attribute__ ((aligned(32))); - -#define OHCI_ED_SKIP (1 << 14) - -/* - * The HCCA (Host Controller Communications Area) is a 256 byte - * structure defined in the OHCI spec. that the host controller is - * told the base address of. It must be 256-byte aligned. - */ - -#define NUM_INTS 32 /* part of the OHCI standard */ -struct ohci_hcca { - __u32 int_table[NUM_INTS]; /* Interrupt ED table */ - __u16 frame_no; /* current frame number */ - __u16 pad1; /* set to 0 on each frame_no change */ - __u32 done_head; /* info returned for an interrupt */ - u8 reserved_for_hc[116]; -} __attribute__ ((aligned(256))); - -/* - * Maximum number of root hub ports. - */ -#define MAX_ROOT_PORTS 15 /* maximum OHCI root hub ports */ - -/* - * This is the structure of the OHCI controller's memory mapped I/O - * region. This is Memory Mapped I/O. You must use the readl() and - * writel() macros defined in asm/io.h to access these!! - */ -struct ohci_regs { - /* control and status registers */ - __u32 revision; - __u32 control; - __u32 cmdstatus; - __u32 intrstatus; - __u32 intrenable; - __u32 intrdisable; - /* memory pointers */ - __u32 hcca; - __u32 ed_periodcurrent; - __u32 ed_controlhead; - __u32 ed_controlcurrent; - __u32 ed_bulkhead; - __u32 ed_bulkcurrent; - __u32 donehead; - /* frame counters */ - __u32 fminterval; - __u32 fmremaining; - __u32 fmnumber; - __u32 periodicstart; - __u32 lsthresh; - /* Root hub ports */ - struct ohci_roothub_regs { - __u32 a; - __u32 b; - __u32 status; - __u32 portstatus[MAX_ROOT_PORTS]; - } roothub; -} __attribute__ ((aligned(32))); - -/* OHCI CONTROL AND STATUS REGISTER MASKS */ - -/* - * HcControl (control) register masks - */ -#define OHCI_CTRL_CBSR (3 << 0) /* control/bulk service ratio */ -#define OHCI_CTRL_PLE (1 << 2) /* periodic list enable */ -#define OHCI_CTRL_IE (1 << 3) /* isochronous enable */ -#define OHCI_CTRL_CLE (1 << 4) /* control list enable */ -#define OHCI_CTRL_BLE (1 << 5) /* bulk list enable */ -#define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */ -#define OHCI_CTRL_IR (1 << 8) /* interrupt routing */ -#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */ -#define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */ - -/* pre-shifted values for HCFS */ -# define OHCI_USB_RESET (0 << 6) -# define OHCI_USB_RESUME (1 << 6) -# define OHCI_USB_OPER (2 << 6) -# define OHCI_USB_SUSPEND (3 << 6) - -/* - * HcCommandStatus (cmdstatus) register masks - */ -#define OHCI_HCR (1 << 0) /* host controller reset */ -#define OHCI_CLF (1 << 1) /* control list filled */ -#define OHCI_BLF (1 << 2) /* bulk list filled */ -#define OHCI_OCR (1 << 3) /* ownership change request */ -#define OHCI_SOC (3 << 16) /* scheduling overrun count */ - -/* - * masks used with interrupt registers: - * HcInterruptStatus (intrstatus) - * HcInterruptEnable (intrenable) - * HcInterruptDisable (intrdisable) - */ -#define OHCI_INTR_SO (1 << 0) /* scheduling overrun */ -#define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */ -#define OHCI_INTR_SF (1 << 2) /* start frame */ -#define OHCI_INTR_RD (1 << 3) /* resume detect */ -#define OHCI_INTR_UE (1 << 4) /* unrecoverable error */ -#define OHCI_INTR_FNO (1 << 5) /* frame number overflow */ -#define OHCI_INTR_RHSC (1 << 6) /* root hub status change */ -#define OHCI_INTR_OC (1 << 30) /* ownership change */ -#define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */ - -/* Virtual Root HUB */ -struct virt_root_hub { - int devnum; /* Address of Root Hub endpoint */ - void *dev; /* was urb */ - void *int_addr; - int send; - int interval; -}; - -/* USB HUB CONSTANTS (not OHCI-specific; see hub.h) */ - -/* destination of request */ -#define RH_INTERFACE 0x01 -#define RH_ENDPOINT 0x02 -#define RH_OTHER 0x03 - -#define RH_CLASS 0x20 -#define RH_VENDOR 0x40 - -/* Requests: bRequest << 8 | bmRequestType */ -#define RH_GET_STATUS 0x0080 -#define RH_CLEAR_FEATURE 0x0100 -#define RH_SET_FEATURE 0x0300 -#define RH_SET_ADDRESS 0x0500 -#define RH_GET_DESCRIPTOR 0x0680 -#define RH_SET_DESCRIPTOR 0x0700 -#define RH_GET_CONFIGURATION 0x0880 -#define RH_SET_CONFIGURATION 0x0900 -#define RH_GET_STATE 0x0280 -#define RH_GET_INTERFACE 0x0A80 -#define RH_SET_INTERFACE 0x0B00 -#define RH_SYNC_FRAME 0x0C80 -/* Our Vendor Specific Request */ -#define RH_SET_EP 0x2000 - - -/* Hub port features */ -#define RH_PORT_CONNECTION 0x00 -#define RH_PORT_ENABLE 0x01 -#define RH_PORT_SUSPEND 0x02 -#define RH_PORT_OVER_CURRENT 0x03 -#define RH_PORT_RESET 0x04 -#define RH_PORT_POWER 0x08 -#define RH_PORT_LOW_SPEED 0x09 - -#define RH_C_PORT_CONNECTION 0x10 -#define RH_C_PORT_ENABLE 0x11 -#define RH_C_PORT_SUSPEND 0x12 -#define RH_C_PORT_OVER_CURRENT 0x13 -#define RH_C_PORT_RESET 0x14 - -/* Hub features */ -#define RH_C_HUB_LOCAL_POWER 0x00 -#define RH_C_HUB_OVER_CURRENT 0x01 - -#define RH_DEVICE_REMOTE_WAKEUP 0x00 -#define RH_ENDPOINT_STALL 0x01 - -#define RH_ACK 0x01 -#define RH_REQ_ERR -1 -#define RH_NACK 0x00 - - -/* OHCI ROOT HUB REGISTER MASKS */ - -/* roothub.portstatus [i] bits */ -#define RH_PS_CCS 0x00000001 /* current connect status */ -#define RH_PS_PES 0x00000002 /* port enable status */ -#define RH_PS_PSS 0x00000004 /* port suspend status */ -#define RH_PS_POCI 0x00000008 /* port over current indicator */ -#define RH_PS_PRS 0x00000010 /* port reset status */ -#define RH_PS_PPS 0x00000100 /* port power status */ -#define RH_PS_LSDA 0x00000200 /* low speed device attached */ -#define RH_PS_CSC 0x00010000 /* connect status change */ -#define RH_PS_PESC 0x00020000 /* port enable status change */ -#define RH_PS_PSSC 0x00040000 /* port suspend status change */ -#define RH_PS_OCIC 0x00080000 /* over current indicator change */ -#define RH_PS_PRSC 0x00100000 /* port reset status change */ - -/* roothub.status bits */ -#define RH_HS_LPS 0x00000001 /* local power status */ -#define RH_HS_OCI 0x00000002 /* over current indicator */ -#define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */ -#define RH_HS_LPSC 0x00010000 /* local power status change */ -#define RH_HS_OCIC 0x00020000 /* over current indicator change */ -#define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */ - -/* roothub.b masks */ -#define RH_B_DR 0x0000ffff /* device removable flags */ -#define RH_B_PPCM 0xffff0000 /* port power control mask */ - -/* roothub.a masks */ -#define RH_A_NDP (0xff << 0) /* number of downstream ports */ -#define RH_A_PSM (1 << 8) /* power switching mode */ -#define RH_A_NPS (1 << 9) /* no power switching */ -#define RH_A_DT (1 << 10) /* device type (mbz) */ -#define RH_A_OCPM (1 << 11) /* over current protection mode */ -#define RH_A_NOCP (1 << 12) /* no over current protection */ -#define RH_A_POTPGT (0xff << 24) /* power on to power good time */ - -/* urb */ -#define N_URB_TD 48 -struct urb_priv { - struct ed *ed; - __u16 length; /* number of tds associated with this request */ - __u16 td_cnt; /* number of tds already serviced */ - int state; - unsigned long pipe; - int actual_length; - struct td *td[N_URB_TD]; /* list pointer to all corresponding TDs - associated with this request */ -}; -#define URB_DEL 1 - -/* - * This is the full ohci controller description - * - * Note how the "proper" USB information is just - * a subset of what the full implementation needs. (Linus) - */ - - -struct ohci { - struct ohci_hcca *hcca; /* hcca */ - /*dma_addr_t hcca_dma; */ - - int irq; - int disabled; /* e.g. got a UE, we're hung */ - int sleeping; - unsigned long flags; /* for HC bugs */ - - struct ohci_regs *regs; /* OHCI controller's memory */ - - struct ed *ed_rm_list[2]; /* lists of all endpoints to be removed */ - struct ed *ed_bulktail; /* last endpoint of bulk list */ - struct ed *ed_controltail; /* last endpoint of control list */ - int intrstatus; - __u32 hc_control; /* copy of the hc control reg */ - struct usb_device *dev[32]; - struct virt_root_hub rh; - - const char *slot_name; -}; - -#define NUM_EDS 8 /* num of preallocated endpoint descriptors */ - -struct ohci_device { - struct ed ed[NUM_EDS]; - int ed_cnt; -}; - -/* hcd */ -/* endpoint */ -static int ep_link(struct ohci *ohci, struct ed *ed); -static int ep_unlink(struct ohci *ohci, struct ed *ed); -static struct ed *ep_add_ed(struct usb_device *usb_dev, unsigned long pipe); - -/*-------------------------------------------------------------------------*/ - -/* we need more TDs than EDs */ -#define NUM_TD 64 - -/* +1 so we can align the storage */ -struct td gtd[NUM_TD + 1]; - -/* pointers to aligned storage */ -struct td *ptd; - -/* TDs ... */ -static inline struct td *td_alloc(struct usb_device *usb_dev) -{ - int i; - struct td *td; - - td = NULL; - for (i = 0; i < NUM_TD; i++) { - if (ptd[i].usb_dev == NULL) { - td = &ptd[i]; - td->usb_dev = usb_dev; - break; - } - } - - return td; -} - -static inline void ed_free(struct ed *ed) -{ - ed->usb_dev = NULL; -} |