[LinuxBIOS] r2563 - in trunk/LinuxBIOSv2/src: config console cpu/amd/model_fxx include lib pc80
svn at openbios.org
svn at openbios.org
Wed Feb 28 12:17:02 CET 2007
Author: stepan
Date: 2007-02-28 12:17:02 +0100 (Wed, 28 Feb 2007)
New Revision: 2563
Added:
trunk/LinuxBIOSv2/src/console/usbdebug_direct_console.c
trunk/LinuxBIOSv2/src/include/ehci.h
trunk/LinuxBIOSv2/src/include/usb_ch9.h
trunk/LinuxBIOSv2/src/include/usbdebug_direct.h
trunk/LinuxBIOSv2/src/lib/usbdebug_direct.c
trunk/LinuxBIOSv2/src/pc80/usbdebug_direct_serial.c
Modified:
trunk/LinuxBIOSv2/src/config/Options.lb
trunk/LinuxBIOSv2/src/console/Config.lb
trunk/LinuxBIOSv2/src/cpu/amd/model_fxx/model_fxx_init.c
trunk/LinuxBIOSv2/src/lib/Config.lb
Log:
This is (most of) the usb2 debug console code ripped out of
Uwe's version of yh_rest_of_patch.patch (13.02.07 - [PATCH]
Rest of huge MCP55 patch).
I dropped a lot of stuff, like broken indenting, removed copyright messages,
and this printk_ram_* stuff (what the heck is this supposed to be)
This codebase is really a mess. Further tarball contributions without a
_CLEANED UP_ patch will be denied, especially if they are not from an up to
date svn tree.
Signed-off-by: Yinghai Lu <yinghai.lu at amd.com>
Signed-off-by: Uwe Hermann <uwe at hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan at coresystems.de>
Modified: trunk/LinuxBIOSv2/src/config/Options.lb
===================================================================
--- trunk/LinuxBIOSv2/src/config/Options.lb 2007-02-27 22:21:59 UTC (rev 2562)
+++ trunk/LinuxBIOSv2/src/config/Options.lb 2007-02-28 11:17:02 UTC (rev 2563)
@@ -442,6 +442,11 @@
export always
comment "Log messages to 8250 uart based serial console"
end
+define CONFIG_USBDEBUG_DIRECT
+ default 0
+ export always
+ comment "Log messages to ehci debug port console"
+end
define DEFAULT_CONSOLE_LOGLEVEL
default 7
export always
@@ -999,6 +1004,12 @@
comment "allow PCI device get 4G above Region as pref mem"
end
+define CONFIG_AGESA
+ default 0
+ export always
+ comment "use AMD AGESA to init RAM instead of native code"
+end
+
define CONFIG_VIDEO_MB
default none
export used
Modified: trunk/LinuxBIOSv2/src/console/Config.lb
===================================================================
--- trunk/LinuxBIOSv2/src/console/Config.lb 2007-02-27 22:21:59 UTC (rev 2562)
+++ trunk/LinuxBIOSv2/src/console/Config.lb 2007-02-28 11:17:02 UTC (rev 2563)
@@ -1,4 +1,5 @@
uses CONFIG_CONSOLE_SERIAL8250
+uses CONFIG_USBDEBUG_DIRECT
uses CONFIG_CONSOLE_VGA
uses CONFIG_CONSOLE_BTEXT
uses CONFIG_CONSOLE_LOGBUF
@@ -9,6 +10,9 @@
if CONFIG_CONSOLE_SERIAL8250
driver uart8250_console.o
end
+if CONFIG_USBDEBUG_DIRECT
+ driver usbdebug_direct_console.o
+end
if CONFIG_CONSOLE_VGA
driver vga_console.o
end
Added: trunk/LinuxBIOSv2/src/console/usbdebug_direct_console.c
===================================================================
--- trunk/LinuxBIOSv2/src/console/usbdebug_direct_console.c (rev 0)
+++ trunk/LinuxBIOSv2/src/console/usbdebug_direct_console.c 2007-02-28 11:17:02 UTC (rev 2563)
@@ -0,0 +1,58 @@
+#include <console/console.h>
+#include <usbdebug_direct.h>
+#include <pc80/mc146818rtc.h>
+
+struct ehci_debug_info dbg_info;
+
+void set_ehci_base(unsigned ehci_base)
+{
+ unsigned diff;
+ if(!dbg_info.ehci_debug) return;
+ diff = dbg_info.ehci_caps - ehci_base;
+ dbg_info.ehci_regs -= diff;
+ dbg_info.ehci_debug -= diff;
+ dbg_info.ehci_caps = ehci_base;
+}
+void set_ehci_debug(unsigned ehci_debug)
+{
+ dbg_info.ehci_debug = ehci_debug;
+}
+
+unsigned get_ehci_debug(void)
+{
+ return dbg_info.ehci_debug;
+}
+
+static void dbgp_init(void)
+{
+ struct ehci_debug_info *dbg_infox;
+ dbg_infox = (struct ehci_debug_info *)((CONFIG_LB_MEM_TOPK<<10) - sizeof (struct ehci_debug_info)); //in RAM
+ memcpy(&dbg_info, dbg_infox, sizeof(struct ehci_debug_info) );
+}
+
+static void dbgp_tx_byte(unsigned char data)
+{
+ if(dbg_info.ehci_debug)
+ dbgp_bulk_write_x(&dbg_info,&data,1);
+}
+
+static unsigned char dbgp_rx_byte(void)
+{
+ unsigned char data = 0xff;
+ if(dbg_info.ehci_debug)
+ dbgp_bulk_read_x(&dbg_info,&data,1);
+ return data;
+}
+
+static int dbgp_tst_byte(void)
+{
+ return dbg_info.ehci_debug;
+}
+
+static struct console_driver usbdebug_direct_console __console = {
+ .init = dbgp_init,
+ .tx_byte = dbgp_tx_byte,
+ .rx_byte = dbgp_rx_byte,
+ .tst_byte = dbgp_tst_byte,
+};
+
Modified: trunk/LinuxBIOSv2/src/cpu/amd/model_fxx/model_fxx_init.c
===================================================================
--- trunk/LinuxBIOSv2/src/cpu/amd/model_fxx/model_fxx_init.c 2007-02-27 22:21:59 UTC (rev 2562)
+++ trunk/LinuxBIOSv2/src/cpu/amd/model_fxx/model_fxx_init.c 2007-02-28 11:17:02 UTC (rev 2563)
@@ -546,6 +546,8 @@
extern void model_fxx_update_microcode(unsigned cpu_deviceid);
int init_processor_name(void);
+static unsigned ehci_debug_addr;
+
void model_fxx_init(device_t dev)
{
unsigned long i;
@@ -565,11 +567,21 @@
}
#endif
+#if CONFIG_USBDEBUG_DIRECT
+ if(!ehci_debug_addr)
+ ehci_debug_addr = get_ehci_debug();
+ set_ehci_debug(0);
+#endif
+
/* Turn on caching if we haven't already */
x86_enable_cache();
amd_setup_mtrrs();
x86_mtrr_check();
+#if CONFIG_USBDEBUG_DIRECT
+ set_ehci_debug(ehci_debug_addr);
+#endif
+
/* Update the microcode */
model_fxx_update_microcode(dev->device);
Added: trunk/LinuxBIOSv2/src/include/ehci.h
===================================================================
--- trunk/LinuxBIOSv2/src/include/ehci.h (rev 0)
+++ trunk/LinuxBIOSv2/src/include/ehci.h 2007-02-28 11:17:02 UTC (rev 2563)
@@ -0,0 +1,132 @@
+#ifndef EHCI_H
+#define EHCI_H
+
+struct ehci_caps {
+ /* these fields are specified as 8 and 16 bit registers,
+ * but some hosts can't perform 8 or 16 bit PCI accesses.
+ */
+ u32 hc_capbase;
+#define HC_LENGTH(p) (((p)>>00)&0x00ff) /* bits 7:0 */
+#define HC_VERSION(p) (((p)>>16)&0xffff) /* bits 31:16 */
+ u32 hcs_params; /* HCSPARAMS - offset 0x4 */
+#define HCS_DEBUG_PORT(p) (((p)>>20)&0xf) /* bits 23:20, debug port? */
+#define HCS_INDICATOR(p) ((p)&(1 << 16)) /* true: has port indicators */
+#define HCS_N_CC(p) (((p)>>12)&0xf) /* bits 15:12, #companion HCs */
+#define HCS_N_PCC(p) (((p)>>8)&0xf) /* bits 11:8, ports per CC */
+#define HCS_PORTROUTED(p) ((p)&(1 << 7)) /* true: port routing */
+#define HCS_PPC(p) ((p)&(1 << 4)) /* true: port power control */
+#define HCS_N_PORTS(p) (((p)>>0)&0xf) /* bits 3:0, ports on HC */
+
+ u32 hcc_params; /* HCCPARAMS - offset 0x8 */
+#define HCC_EXT_CAPS(p) (((p)>>8)&0xff) /* for pci extended caps */
+#define HCC_ISOC_CACHE(p) ((p)&(1 << 7)) /* true: can cache isoc frame */
+#define HCC_ISOC_THRES(p) (((p)>>4)&0x7) /* bits 6:4, uframes cached */
+#define HCC_CANPARK(p) ((p)&(1 << 2)) /* true: can park on async qh */
+#define HCC_PGM_FRAMELISTLEN(p) ((p)&(1 << 1)) /* true: periodic_size changes*/
+#define HCC_64BIT_ADDR(p) ((p)&(1)) /* true: can use 64-bit addr */
+ u8 portroute [8]; /* nibbles for routing - offset 0xC */
+} __attribute__ ((packed));
+
+/* Section 2.3 Host Controller Operational Registers */
+struct ehci_regs {
+
+ /* USBCMD: offset 0x00 */
+ u32 command;
+/* 23:16 is r/w intr rate, in microframes; default "8" == 1/msec */
+#define CMD_PARK (1<<11) /* enable "park" on async qh */
+#define CMD_PARK_CNT(c) (((c)>>8)&3) /* how many transfers to park for */
+#define CMD_LRESET (1<<7) /* partial reset (no ports, etc) */
+#define CMD_IAAD (1<<6) /* "doorbell" interrupt async advance */
+#define CMD_ASE (1<<5) /* async schedule enable */
+#define CMD_PSE (1<<4) /* periodic schedule enable */
+/* 3:2 is periodic frame list size */
+#define CMD_RESET (1<<1) /* reset HC not bus */
+#define CMD_RUN (1<<0) /* start/stop HC */
+
+ /* USBSTS: offset 0x04 */
+ u32 status;
+#define STS_ASS (1<<15) /* Async Schedule Status */
+#define STS_PSS (1<<14) /* Periodic Schedule Status */
+#define STS_RECL (1<<13) /* Reclamation */
+#define STS_HALT (1<<12) /* Not running (any reason) */
+/* some bits reserved */
+ /* these STS_* flags are also intr_enable bits (USBINTR) */
+#define STS_IAA (1<<5) /* Interrupted on async advance */
+#define STS_FATAL (1<<4) /* such as some PCI access errors */
+#define STS_FLR (1<<3) /* frame list rolled over */
+#define STS_PCD (1<<2) /* port change detect */
+#define STS_ERR (1<<1) /* "error" completion (overflow, ...) */
+#define STS_INT (1<<0) /* "normal" completion (short, ...) */
+
+ /* USBINTR: offset 0x08 */
+ u32 intr_enable;
+
+ /* FRINDEX: offset 0x0C */
+ u32 frame_index; /* current microframe number */
+ /* CTRLDSSEGMENT: offset 0x10 */
+ u32 segment; /* address bits 63:32 if needed */
+ /* PERIODICLISTBASE: offset 0x14 */
+ u32 frame_list; /* points to periodic list */
+ /* ASYNCLISTADDR: offset 0x18 */
+ u32 async_next; /* address of next async queue head */
+
+ u32 reserved [9];
+
+ /* CONFIGFLAG: offset 0x40 */
+ u32 configured_flag;
+#define FLAG_CF (1<<0) /* true: we'll support "high speed" */
+
+ /* PORTSC: offset 0x44 */
+ u32 port_status [0]; /* up to N_PORTS */
+/* 31:23 reserved */
+#define PORT_WKOC_E (1<<22) /* wake on overcurrent (enable) */
+#define PORT_WKDISC_E (1<<21) /* wake on disconnect (enable) */
+#define PORT_WKCONN_E (1<<20) /* wake on connect (enable) */
+/* 19:16 for port testing */
+#define PORT_LED_OFF (0<<14)
+#define PORT_LED_AMBER (1<<14)
+#define PORT_LED_GREEN (2<<14)
+#define PORT_LED_MASK (3<<14)
+#define PORT_OWNER (1<<13) /* true: companion hc owns this port */
+#define PORT_POWER (1<<12) /* true: has power (see PPC) */
+#define PORT_USB11(x) (((x)&(3<<10))==(1<<10)) /* USB 1.1 device */
+/* 11:10 for detecting lowspeed devices (reset vs release ownership) */
+/* 9 reserved */
+#define PORT_RESET (1<<8) /* reset port */
+#define PORT_SUSPEND (1<<7) /* suspend port */
+#define PORT_RESUME (1<<6) /* resume it */
+#define PORT_OCC (1<<5) /* over current change */
+#define PORT_OC (1<<4) /* over current active */
+#define PORT_PEC (1<<3) /* port enable change */
+#define PORT_PE (1<<2) /* port enable */
+#define PORT_CSC (1<<1) /* connect status change */
+#define PORT_CONNECT (1<<0) /* device connected */
+#define PORT_RWC_BITS (PORT_CSC | PORT_PEC | PORT_OCC)
+} __attribute__ ((packed));
+
+/* Appendix C, Debug port ... intended for use with special "debug devices"
+ * that can help if there's no serial console. (nonstandard enumeration.)
+ */
+struct ehci_dbg_port {
+ u32 control;
+#define DBGP_OWNER (1<<30)
+#define DBGP_ENABLED (1<<28)
+#define DBGP_DONE (1<<16)
+#define DBGP_INUSE (1<<10)
+#define DBGP_ERRCODE(x) (((x)>>7)&0x07)
+# define DBGP_ERR_BAD 1
+# define DBGP_ERR_SIGNAL 2
+#define DBGP_ERROR (1<<6)
+#define DBGP_GO (1<<5)
+#define DBGP_OUT (1<<4)
+#define DBGP_LEN(x) (((x)>>0)&0x0f)
+ u32 pids;
+#define DBGP_PID_GET(x) (((x)>>16)&0xff)
+#define DBGP_PID_SET(data,tok) (((data)<<8)|(tok))
+ u32 data03;
+ u32 data47;
+ u32 address;
+#define DBGP_EPADDR(dev,ep) (((dev)<<8)|(ep))
+} __attribute__ ((packed));
+
+#endif
Added: trunk/LinuxBIOSv2/src/include/usb_ch9.h
===================================================================
--- trunk/LinuxBIOSv2/src/include/usb_ch9.h (rev 0)
+++ trunk/LinuxBIOSv2/src/include/usb_ch9.h 2007-02-28 11:17:02 UTC (rev 2563)
@@ -0,0 +1,83 @@
+#ifndef USB_CH9_H
+#define USB_CH9_H
+
+#define USB_DIR_OUT 0 /* to device */
+#define USB_DIR_IN 0x80 /* to host */
+
+/*
+ * USB types, the second of three bRequestType fields
+ */
+#define USB_TYPE_MASK (0x03 << 5)
+#define USB_TYPE_STANDARD (0x00 << 5)
+#define USB_TYPE_CLASS (0x01 << 5)
+#define USB_TYPE_VENDOR (0x02 << 5)
+#define USB_TYPE_RESERVED (0x03 << 5)
+/*
+ * USB recipients, the third of three bRequestType fields
+ */
+#define USB_RECIP_MASK 0x1f
+#define USB_RECIP_DEVICE 0x00
+#define USB_RECIP_INTERFACE 0x01
+#define USB_RECIP_ENDPOINT 0x02
+#define USB_RECIP_OTHER 0x03
+/* From Wireless USB 1.0 */
+#define USB_RECIP_PORT 0x04
+#define USB_RECIP_RPIPE 0x05
+
+/*
+ * Standard requests, for the bRequest field of a SETUP packet.
+ *
+ * These are qualified by the bRequestType field, so that for example
+ * TYPE_CLASS or TYPE_VENDOR specific feature flags could be retrieved
+ * by a GET_STATUS request.
+ */
+#define USB_REQ_GET_STATUS 0x00
+#define USB_REQ_CLEAR_FEATURE 0x01
+#define USB_REQ_SET_FEATURE 0x03
+#define USB_REQ_SET_ADDRESS 0x05
+#define USB_REQ_GET_DESCRIPTOR 0x06
+#define USB_REQ_SET_DESCRIPTOR 0x07
+#define USB_REQ_GET_CONFIGURATION 0x08
+#define USB_REQ_SET_CONFIGURATION 0x09
+#define USB_REQ_GET_INTERFACE 0x0A
+#define USB_REQ_SET_INTERFACE 0x0B
+#define USB_REQ_SYNCH_FRAME 0x0C
+
+#define USB_REQ_SET_ENCRYPTION 0x0D /* Wireless USB */
+#define USB_REQ_GET_ENCRYPTION 0x0E
+#define USB_REQ_RPIPE_ABORT 0x0E
+#define USB_REQ_SET_HANDSHAKE 0x0F
+#define USB_REQ_RPIPE_RESET 0x0F
+#define USB_REQ_GET_HANDSHAKE 0x10
+#define USB_REQ_SET_CONNECTION 0x11
+#define USB_REQ_SET_SECURITY_DATA 0x12
+#define USB_REQ_GET_SECURITY_DATA 0x13
+#define USB_REQ_SET_WUSB_DATA 0x14
+#define USB_REQ_LOOPBACK_DATA_WRITE 0x15
+#define USB_REQ_LOOPBACK_DATA_READ 0x16
+#define USB_REQ_SET_INTERFACE_DS 0x17
+
+#define USB_DT_DEBUG 0x0a
+
+#define USB_DEVICE_DEBUG_MODE 6 /* (special devices only) */
+
+//frim usb_ch9.h
+struct usb_ctrlrequest {
+ uint8_t bRequestType;
+ uint8_t bRequest;
+ uint16_t wValue;
+ uint16_t wIndex;
+ uint16_t wLength;
+} __attribute__ ((packed));
+
+struct usb_debug_descriptor {
+ uint8_t bLength;
+ uint8_t bDescriptorType;
+
+ /* bulk endpoints with 8 byte maxpacket */
+ uint8_t bDebugInEndpoint;
+ uint8_t bDebugOutEndpoint;
+};
+
+#endif
+
Added: trunk/LinuxBIOSv2/src/include/usbdebug_direct.h
===================================================================
--- trunk/LinuxBIOSv2/src/include/usbdebug_direct.h (rev 0)
+++ trunk/LinuxBIOSv2/src/include/usbdebug_direct.h 2007-02-28 11:17:02 UTC (rev 2563)
@@ -0,0 +1,17 @@
+#ifndef USBDEBUG_DIRECT_H
+#define USBDEBUG_DIRECT_H
+
+struct ehci_debug_info {
+ void *ehci_caps;
+ void *ehci_regs;
+ void *ehci_debug;
+ unsigned devnum;
+ unsigned endpoint_out;
+ unsigned endpoint_in;
+};
+extern int dbgp_bulk_write_x(struct ehci_debug_info *dbg_info, const char *bytes, int size);
+extern int dbgp_bulk_read_x(struct ehci_debug_info *dbg_info, void *data, int size);
+extern void set_ehci_base(unsigned ehci_base);
+extern void set_ehci_debug(unsigned ehci_deug);
+extern unsigned get_ehci_debug(void);
+#endif
Modified: trunk/LinuxBIOSv2/src/lib/Config.lb
===================================================================
--- trunk/LinuxBIOSv2/src/lib/Config.lb 2007-02-27 22:21:59 UTC (rev 2562)
+++ trunk/LinuxBIOSv2/src/lib/Config.lb 2007-02-28 11:17:02 UTC (rev 2563)
@@ -1,9 +1,15 @@
uses HAVE_FALLBACK_BOOT
uses CONFIG_USE_INIT
uses CONFIG_USE_PRINTK_IN_CAR
+uses CONFIG_USBDEBUG_DIRECT
object clog2.o
object uart8250.o
+
+if CONFIG_USBDEBUG_DIRECT
+ object usbdebug_direct.o
+end
+
object memset.o
object memcpy.o
object memcmp.o
Added: trunk/LinuxBIOSv2/src/lib/usbdebug_direct.c
===================================================================
--- trunk/LinuxBIOSv2/src/lib/usbdebug_direct.c (rev 0)
+++ trunk/LinuxBIOSv2/src/lib/usbdebug_direct.c 2007-02-28 11:17:02 UTC (rev 2563)
@@ -0,0 +1,539 @@
+/*
+ * Copyright (C) 2006 Eric Biederman (ebiederm at xmission.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * 2006.12.10 yhlu moved it to LinuxBIOS and use struct instead
+ */
+#ifndef __ROMCC__
+#include <console/console.h>
+#else
+#if CONFIG_USE_PRINTK_IN_CAR==0
+#define printk_debug(fmt, arg...) do {} while(0)
+#endif
+#endif
+
+
+#include <arch/io.h>
+
+#include <usb_ch9.h>
+#include <ehci.h>
+#include <usbdebug_direct.h>
+
+#define USB_DEBUG_DEVNUM 127
+
+#define DBGP_DATA_TOGGLE 0x8800
+#define DBGP_PID_UPDATE(x, tok) \
+ ((((x) ^ DBGP_DATA_TOGGLE) & 0xffff00) | ((tok) & 0xff))
+
+#define DBGP_LEN_UPDATE(x, len) (((x) & ~0x0f) | ((len) & 0x0f))
+/*
+ * USB Packet IDs (PIDs)
+ */
+
+/* token */
+#define USB_PID_OUT 0xe1
+#define USB_PID_IN 0x69
+#define USB_PID_SOF 0xa5
+#define USB_PID_SETUP 0x2d
+/* handshake */
+#define USB_PID_ACK 0xd2
+#define USB_PID_NAK 0x5a
+#define USB_PID_STALL 0x1e
+#define USB_PID_NYET 0x96
+/* data */
+#define USB_PID_DATA0 0xc3
+#define USB_PID_DATA1 0x4b
+#define USB_PID_DATA2 0x87
+#define USB_PID_MDATA 0x0f
+/* Special */
+#define USB_PID_PREAMBLE 0x3c
+#define USB_PID_ERR 0x3c
+#define USB_PID_SPLIT 0x78
+#define USB_PID_PING 0xb4
+#define USB_PID_UNDEF_0 0xf0
+
+#define USB_PID_DATA_TOGGLE 0x88
+#define DBGP_CLAIM (DBGP_OWNER | DBGP_ENABLED | DBGP_INUSE)
+
+#define PCI_CAP_ID_EHCI_DEBUG 0xa
+
+#define HUB_ROOT_RESET_TIME 50 /* times are in msec */
+#define HUB_SHORT_RESET_TIME 10
+#define HUB_LONG_RESET_TIME 200
+#define HUB_RESET_TIMEOUT 500
+
+#define DBGP_MAX_PACKET 8
+
+static int dbgp_wait_until_complete(struct ehci_dbg_port *ehci_debug)
+{
+ unsigned ctrl;
+ int loop = 0x100000;
+ do {
+ ctrl = readl(&ehci_debug->control);
+ /* Stop when the transaction is finished */
+ if (ctrl & DBGP_DONE)
+ break;
+ } while(--loop>0);
+
+ if (!loop) return -1000;
+
+ /* Now that we have observed the completed transaction,
+ * clear the done bit.
+ */
+ writel(ctrl | DBGP_DONE, &ehci_debug->control);
+ return (ctrl & DBGP_ERROR) ? -DBGP_ERRCODE(ctrl) : DBGP_LEN(ctrl);
+}
+
+static void dbgp_mdelay(int ms)
+{
+ int i;
+ while (ms--) {
+ for (i = 0; i < 1000; i++)
+ outb(0x1, 0x80);
+ }
+}
+
+static void dbgp_breath(void)
+{
+ /* Sleep to give the debug port a chance to breathe */
+}
+
+static int dbgp_wait_until_done(struct ehci_dbg_port *ehci_debug, unsigned ctrl)
+{
+ unsigned pids, lpid;
+ int ret;
+
+ int loop = 3;
+retry:
+ writel(ctrl | DBGP_GO, &ehci_debug->control);
+ ret = dbgp_wait_until_complete(ehci_debug);
+ pids = readl(&ehci_debug->pids);
+ lpid = DBGP_PID_GET(pids);
+
+ if (ret < 0)
+ return ret;
+
+ /* If the port is getting full or it has dropped data
+ * start pacing ourselves, not necessary but it's friendly.
+ */
+ if ((lpid == USB_PID_NAK) || (lpid == USB_PID_NYET))
+ dbgp_breath();
+
+ /* If I get a NACK reissue the transmission */
+ if (lpid == USB_PID_NAK) {
+ if (--loop > 0) goto retry;
+ }
+
+ return ret;
+}
+
+static void dbgp_set_data(struct ehci_dbg_port *ehci_debug, const void *buf, int size)
+{
+ const unsigned char *bytes = buf;
+ unsigned lo, hi;
+ int i;
+ lo = hi = 0;
+ for (i = 0; i < 4 && i < size; i++)
+ lo |= bytes[i] << (8*i);
+ for (; i < 8 && i < size; i++)
+ hi |= bytes[i] << (8*(i - 4));
+ writel(lo, &ehci_debug->data03);
+ writel(hi, &ehci_debug->data47);
+}
+
+static void dbgp_get_data(struct ehci_dbg_port *ehci_debug, void *buf, int size)
+{
+ unsigned char *bytes = buf;
+ unsigned lo, hi;
+ int i;
+ lo = readl(&ehci_debug->data03);
+ hi = readl(&ehci_debug->data47);
+ for (i = 0; i < 4 && i < size; i++)
+ bytes[i] = (lo >> (8*i)) & 0xff;
+ for (; i < 8 && i < size; i++)
+ bytes[i] = (hi >> (8*(i - 4))) & 0xff;
+}
+
+static int dbgp_bulk_write(struct ehci_dbg_port *ehci_debug, unsigned devnum, unsigned endpoint, const char *bytes, int size)
+{
+ unsigned pids, addr, ctrl;
+ int ret;
+ if (size > DBGP_MAX_PACKET)
+ return -1;
+
+ addr = DBGP_EPADDR(devnum, endpoint);
+
+ pids = readl(&ehci_debug->pids);
+ pids = DBGP_PID_UPDATE(pids, USB_PID_OUT);
+
+ ctrl = readl(&ehci_debug->control);
+ ctrl = DBGP_LEN_UPDATE(ctrl, size);
+ ctrl |= DBGP_OUT;
+ ctrl |= DBGP_GO;
+
+ dbgp_set_data(ehci_debug, bytes, size);
+ writel(addr, &ehci_debug->address);
+ writel(pids, &ehci_debug->pids);
+
+ ret = dbgp_wait_until_done(ehci_debug, ctrl);
+ if (ret < 0) {
+ return ret;
+ }
+ return ret;
+}
+
+int dbgp_bulk_write_x(struct ehci_debug_info *dbg_info, const char *bytes, int size)
+{
+ return dbgp_bulk_write(dbg_info->ehci_debug, dbg_info->devnum, dbg_info->endpoint_out, bytes, size);
+}
+
+static int dbgp_bulk_read(struct ehci_dbg_port *ehci_debug, unsigned devnum, unsigned endpoint, void *data, int size)
+{
+ unsigned pids, addr, ctrl;
+ int ret;
+
+ if (size > DBGP_MAX_PACKET)
+ return -1;
+
+ addr = DBGP_EPADDR(devnum, endpoint);
+
+ pids = readl(&ehci_debug->pids);
+ pids = DBGP_PID_UPDATE(pids, USB_PID_IN);
+
+ ctrl = readl(&ehci_debug->control);
+ ctrl = DBGP_LEN_UPDATE(ctrl, size);
+ ctrl &= ~DBGP_OUT;
+ ctrl |= DBGP_GO;
+
+ writel(addr, &ehci_debug->address);
+ writel(pids, &ehci_debug->pids);
+ ret = dbgp_wait_until_done(ehci_debug, ctrl);
+ if (ret < 0)
+ return ret;
+ if (size > ret)
+ size = ret;
+ dbgp_get_data(ehci_debug, data, size);
+ return ret;
+}
+int dbgp_bulk_read_x(struct ehci_debug_info *dbg_info, void *data, int size)
+{
+ return dbgp_bulk_read(dbg_info->ehci_debug, dbg_info->devnum, dbg_info->endpoint_in, data, size);
+}
+
+static int dbgp_control_msg(struct ehci_dbg_port *ehci_debug, unsigned devnum, int requesttype, int request,
+ int value, int index, void *data, int size)
+{
+ unsigned pids, addr, ctrl;
+ struct usb_ctrlrequest req;
+ int read;
+ int ret;
+
+ read = (requesttype & USB_DIR_IN) != 0;
+ if (size > (read?DBGP_MAX_PACKET:0))
+ return -1;
+
+ /* Compute the control message */
+ req.bRequestType = requesttype;
+ req.bRequest = request;
+ req.wValue = value;
+ req.wIndex = index;
+ req.wLength = size;
+
+ pids = DBGP_PID_SET(USB_PID_DATA0, USB_PID_SETUP);
+ addr = DBGP_EPADDR(devnum, 0);
+
+ ctrl = readl(&ehci_debug->control);
+ ctrl = DBGP_LEN_UPDATE(ctrl, sizeof(req));
+ ctrl |= DBGP_OUT;
+ ctrl |= DBGP_GO;
+
+ /* Send the setup message */
+ dbgp_set_data(ehci_debug, &req, sizeof(req));
+ writel(addr, &ehci_debug->address);
+ writel(pids, &ehci_debug->pids);
+ ret = dbgp_wait_until_done(ehci_debug, ctrl);
+ if (ret < 0)
+ return ret;
+
+
+ /* Read the result */
+ ret = dbgp_bulk_read(ehci_debug, devnum, 0, data, size);
+ return ret;
+}
+
+static int ehci_reset_port(struct ehci_regs *ehci_regs, int port)
+{
+ unsigned portsc;
+ unsigned delay_time, delay;
+ int loop;
+
+ /* Reset the usb debug port */
+ portsc = readl(&ehci_regs->port_status[port - 1]);
+ portsc &= ~PORT_PE;
+ portsc |= PORT_RESET;
+ writel(portsc, &ehci_regs->port_status[port - 1]);
+
+ delay = HUB_ROOT_RESET_TIME;
+ for (delay_time = 0; delay_time < HUB_RESET_TIMEOUT;
+ delay_time += delay) {
+ dbgp_mdelay(delay);
+
+ portsc = readl(&ehci_regs->port_status[port - 1]);
+ if (portsc & PORT_RESET) {
+ /* force reset to complete */
+ loop = 2;
+ writel(portsc & ~(PORT_RWC_BITS | PORT_RESET),
+ &ehci_regs->port_status[port - 1]);
+ do {
+ dbgp_mdelay(delay);
+ portsc = readl(&ehci_regs->port_status[port - 1]);
+ delay_time += delay;
+ } while ((portsc & PORT_RESET) && (--loop > 0));
+ if (!loop) {
+ printk_debug("ehci_reset_port forced done");
+ }
+ }
+
+ /* Device went away? */
+ if (!(portsc & PORT_CONNECT))
+ return -107;//-ENOTCONN;
+
+ /* bomb out completely if something weird happend */
+ if ((portsc & PORT_CSC))
+ return -22;//-EINVAL;
+
+ /* If we've finished resetting, then break out of the loop */
+ if (!(portsc & PORT_RESET) && (portsc & PORT_PE))
+ return 0;
+ }
+ return -16;//-EBUSY;
+}
+
+static int ehci_wait_for_port(struct ehci_regs *ehci_regs, int port)
+{
+ unsigned status;
+ int ret, reps;
+ for (reps = 0; reps < 3; reps++) {
+ dbgp_mdelay(100);
+ status = readl(&ehci_regs->status);
+ if (status & STS_PCD) {
+ ret = ehci_reset_port(ehci_regs, port);
+ if (ret == 0)
+ return 0;
+ }
+ }
+ return -107; //-ENOTCONN;
+}
+
+
+#define DBGP_DEBUG 1
+#if DBGP_DEBUG
+# define dbgp_printk printk_debug
+#else
+#define dbgp_printk(fmt, arg...) do {} while(0)
+#endif
+static void usbdebug_direct_init(unsigned ehci_bar, unsigned offset, struct ehci_debug_info *info)
+{
+ struct ehci_caps *ehci_caps;
+ struct ehci_regs *ehci_regs;
+ struct ehci_dbg_port *ehci_debug;
+ unsigned dbgp_endpoint_out;
+ unsigned dbgp_endpoint_in;
+ struct usb_debug_descriptor dbgp_desc;
+ unsigned ctrl, devnum;
+ int ret;
+ unsigned delay_time, delay;
+ int loop;
+
+ unsigned cmd, status, portsc, hcs_params, debug_port, n_ports, new_debug_port;
+ int i;
+ unsigned port_map_tried;
+
+ unsigned playtimes = 3;
+
+ ehci_caps = (struct ehci_caps *)ehci_bar;
+ ehci_regs = (struct ehci_regs *)(ehci_bar + HC_LENGTH(readl(&ehci_caps->hc_capbase)));
+ ehci_debug = (struct ehci_dbg_port *)(ehci_bar + offset);
+
+ info->ehci_debug = (void *)0;
+
+try_next_time:
+ port_map_tried = 0;
+
+try_next_port:
+ hcs_params = readl(&ehci_caps->hcs_params);
+ debug_port = HCS_DEBUG_PORT(hcs_params);
+ n_ports = HCS_N_PORTS(hcs_params);
+
+ dbgp_printk("debug_port: %d\n", debug_port);
+ dbgp_printk("n_ports: %d\n", n_ports);
+
+#if 0
+ for (i = 1; i <= n_ports; i++) {
+ portsc = readl(&ehci_regs->port_status[i-1]);
+ dbgp_printk("portstatus%d: %08x\n", i, portsc);
+ }
+#endif
+
+ if(port_map_tried && (new_debug_port!=debug_port)) {
+ if(--playtimes) {
+ set_debug_port(debug_port);
+ goto try_next_time;
+ }
+ return;
+ }
+
+ /* Reset the EHCI controller */
+ loop = 10;
+ cmd = readl(&ehci_regs->command);
+ cmd |= CMD_RESET;
+ writel(cmd, &ehci_regs->command);
+ do {
+ cmd = readl(&ehci_regs->command);
+ } while ((cmd & CMD_RESET) && (--loop > 0));
+
+ if(!loop) {
+ dbgp_printk("can not reset ehci\n");
+ return;
+ }
+ dbgp_printk("ehci reset done\n");
+
+ /* Claim ownership, but do not enable yet */
+ ctrl = readl(&ehci_debug->control);
+ ctrl |= DBGP_OWNER;
+ ctrl &= ~(DBGP_ENABLED | DBGP_INUSE);
+ writel(ctrl, &ehci_debug->control);
+
+ /* Start the ehci running */
+ cmd = readl(&ehci_regs->command);
+ cmd &= ~(CMD_LRESET | CMD_IAAD | CMD_PSE | CMD_ASE | CMD_RESET);
+ cmd |= CMD_RUN;
+ writel(cmd, &ehci_regs->command);
+
+ /* Ensure everything is routed to the EHCI */
+ writel(FLAG_CF, &ehci_regs->configured_flag);
+
+ /* Wait until the controller is no longer halted */
+ loop = 10;
+ do {
+ status = readl(&ehci_regs->status);
+ } while ((status & STS_HALT) && (--loop>0));
+
+ if(!loop) {
+ dbgp_printk("ehci can be started\n");
+ return;
+ }
+ dbgp_printk("ehci started\n");
+
+ /* Wait for a device to show up in the debug port */
+ ret = ehci_wait_for_port(ehci_regs, debug_port);
+ if (ret < 0) {
+ dbgp_printk("No device found in debug port %d\n", debug_port);
+ goto next_debug_port;
+ }
+ dbgp_printk("ehci wait for port done\n");
+
+ /* Enable the debug port */
+ ctrl = readl(&ehci_debug->control);
+ ctrl |= DBGP_CLAIM;
+ writel(ctrl, &ehci_debug->control);
+ ctrl = readl(&ehci_debug->control);
+ if ((ctrl & DBGP_CLAIM) != DBGP_CLAIM) {
+ dbgp_printk("No device in debug port\n");
+ writel(ctrl & ~DBGP_CLAIM, &ehci_debug->control);
+ goto err;
+ }
+ dbgp_printk("debug ported enabled\n");
+
+ /* Completely transfer the debug device to the debug controller */
+ portsc = readl(&ehci_regs->port_status[debug_port - 1]);
+ portsc &= ~PORT_PE;
+ writel(portsc, &ehci_regs->port_status[debug_port - 1]);
+
+ dbgp_mdelay(100);
+
+ /* Find the debug device and make it device number 127 */
+ for (devnum = 0; devnum <= 127; devnum++) {
+ ret = dbgp_control_msg(ehci_debug, devnum,
+ USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE,
+ USB_REQ_GET_DESCRIPTOR, (USB_DT_DEBUG << 8), 0,
+ &dbgp_desc, sizeof(dbgp_desc));
+ if (ret > 0)
+ break;
+ }
+ if (devnum > 127) {
+ dbgp_printk("Could not find attached debug device\n");
+ goto err;
+ }
+ if (ret < 0) {
+ dbgp_printk("Attached device is not a debug device\n");
+ goto err;
+ }
+ dbgp_endpoint_out = dbgp_desc.bDebugOutEndpoint;
+ dbgp_endpoint_in = dbgp_desc.bDebugInEndpoint;
+
+ /* Move the device to 127 if it isn't already there */
+ if (devnum != USB_DEBUG_DEVNUM) {
+ ret = dbgp_control_msg(ehci_debug, devnum,
+ USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE,
+ USB_REQ_SET_ADDRESS, USB_DEBUG_DEVNUM, 0, (void *)0, 0);
+ if (ret < 0) {
+ dbgp_printk("Could not move attached device to %d\n",
+ USB_DEBUG_DEVNUM);
+ goto err;
+ }
+ devnum = USB_DEBUG_DEVNUM;
+ dbgp_printk("debug device renamed to 127\n");
+ }
+
+ /* Enable the debug interface */
+ ret = dbgp_control_msg(ehci_debug, USB_DEBUG_DEVNUM,
+ USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE,
+ USB_REQ_SET_FEATURE, USB_DEVICE_DEBUG_MODE, 0, (void *)0, 0);
+ if (ret < 0) {
+ dbgp_printk(" Could not enable the debug device\n");
+ goto err;
+ }
+ dbgp_printk("debug interface enabled\n");
+
+ /* Perform a small write to get the even/odd data state in sync
+ */
+ ret = dbgp_bulk_write(ehci_debug, USB_DEBUG_DEVNUM, dbgp_endpoint_out, " ",1);
+ if (ret < 0) {
+ dbgp_printk("dbgp_bulk_write failed: %d\n", ret);
+ goto err;
+ }
+ dbgp_printk("small write doned\n");
+
+ info->ehci_caps = ehci_caps;
+ info->ehci_regs = ehci_regs;
+ info->ehci_debug = ehci_debug;
+ info->devnum = devnum;
+ info->endpoint_out = dbgp_endpoint_out;
+ info->endpoint_in = dbgp_endpoint_in;
+
+ return;
+err:
+ /* Things didn't work so remove my claim */
+ ctrl = readl(&ehci_debug->control);
+ ctrl &= ~(DBGP_CLAIM | DBGP_OUT);
+ writel(ctrl, &ehci_debug->control);
+
+next_debug_port:
+ port_map_tried |= (1<<(debug_port-1));
+ if(port_map_tried != ((1<<n_ports) -1)) {
+ new_debug_port = ((debug_port-1+1)%n_ports) + 1;
+ set_debug_port(new_debug_port);
+ goto try_next_port;
+ }
+ if(--playtimes) {
+ set_debug_port(debug_port);
+ goto try_next_time;
+ }
+
+}
+
+
Added: trunk/LinuxBIOSv2/src/pc80/usbdebug_direct_serial.c
===================================================================
--- trunk/LinuxBIOSv2/src/pc80/usbdebug_direct_serial.c (rev 0)
+++ trunk/LinuxBIOSv2/src/pc80/usbdebug_direct_serial.c 2007-02-28 11:17:02 UTC (rev 2563)
@@ -0,0 +1,25 @@
+#include <part/fallback_boot.h>
+#include "../lib/usbdebug_direct.c"
+static void early_usbdebug_direct_init(void)
+{
+ struct ehci_debug_info *dbg_info =
+ (struct ehci_debug_info *)(DCACHE_RAM_BASE + DCACHE_RAM_SIZE - sizeof (struct ehci_debug_info));
+
+ usbdebug_direct_init(EHCI_BAR, EHCI_DEBUG_OFFSET, dbg_info);
+}
+void usbdebug_direct_tx_byte(unsigned char data)
+{
+ struct ehci_debug_info *dbg_info;
+ dbg_info = (struct ehci_debug_info *)(DCACHE_RAM_BASE + DCACHE_RAM_SIZE - sizeof (struct ehci_debug_info)); // in Cache
+ if (dbg_info->ehci_debug) {
+ dbgp_bulk_write_x(dbg_info, &data, 1);
+ }
+}
+void usbdebug_direct_ram_tx_byte(unsigned char data)
+{
+ struct ehci_debug_info *dbg_info;
+ dbg_info = (struct ehci_debug_info *)((CONFIG_LB_MEM_TOPK<<10) - sizeof (struct ehci_debug_info)); //in RAM
+ if (dbg_info->ehci_debug) {
+ dbgp_bulk_write_x(dbg_info, &data, 1);
+ }
+}
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