Add an EHCI driver to libpayload's USB stack.
Interrupt transfer support is missing (ie. no keyboard),
bulk and control transfers work (ie. mass storage).
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5845 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/payloads/libpayload/drivers/usb/ehci_private.h b/payloads/libpayload/drivers/usb/ehci_private.h
new file mode 100644
index 0000000..e63a81d
--- /dev/null
+++ b/payloads/libpayload/drivers/usb/ehci_private.h
@@ -0,0 +1,266 @@
+/*
+ * This file is part of the libpayload project.
+ *
+ * Copyright (C) 2010 coresystems GmbH
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef __EHCI_PRIVATE_H
+#define __EHCI_PRIVATE_H
+
+#include <pci.h>
+#include <usb/usb.h>
+
+#define USBBASE 0x10
+#define FLADJ 0x61
+#define FLADJ_framelength(x) (((x)-59488)/16)
+
+typedef union {
+ u32 val;
+ volatile struct {
+ unsigned long current_conn_status:1;
+ unsigned long conn_status_change:1;
+ unsigned long port_enable:1;
+ unsigned long port_enable_change:1;
+ unsigned long overcurrent:1;
+ unsigned long overcurrent_change:1;
+ unsigned long force_port_resume:1;
+ unsigned long suspend:1;
+ unsigned long port_reset:1;
+ unsigned long:1;
+ unsigned long line_status:2;
+ unsigned long pp:1;
+ unsigned long port_owner:1;
+ unsigned long port_indicator_control:2;
+ unsigned long port_test_control:4;
+ unsigned long wake_on_connect_en:1;
+ unsigned long wake_on_disconnect_en:1;
+ unsigned long wake_on_overcurrent_en:1;
+ unsigned long:9;
+ } __attribute__ ((packed));
+} __attribute__ ((packed)) portsc_t;
+
+typedef struct {
+ u8 caplength;
+ u8 res1;
+ u16 hciversion;
+ union {
+ u32 hcsparams;
+ struct {
+ unsigned long n_ports:4;
+ unsigned long ppc:1;
+ unsigned long:2;
+ unsigned long port_routing_rules:1;
+ unsigned long n_pcc:4;
+ unsigned long n_cc:4;
+ unsigned long p_indicator:1;
+ unsigned long:3;
+ unsigned long debug_port_number:4;
+ unsigned long:8;
+ } __attribute__ ((packed));
+ };
+ union {
+ u32 hccparams;
+ struct {
+ unsigned long cap_64b_addr:1;
+ unsigned long cap_prog_framelist_size:1;
+ unsigned long cap_async_park:1;
+ unsigned long:1;
+ unsigned long isoc_sched_threshold:4;
+ unsigned long eecp:8;
+ unsigned long:16;
+ } __attribute__ ((packed));
+ };
+ union {
+ u64 hcsp_portroute;
+ struct {
+ unsigned long portroute0:4;
+ unsigned long portroute1:4;
+ unsigned long portroute2:4;
+ unsigned long portroute3:4;
+ unsigned long portroute4:4;
+ unsigned long portroute5:4;
+ unsigned long portroute6:4;
+ unsigned long portroute7:4;
+ unsigned long portroute8:4;
+ unsigned long portroute9:4;
+ unsigned long portroute10:4;
+ unsigned long portroute11:4;
+ unsigned long portroute12:4;
+ unsigned long portroute13:4;
+ unsigned long portroute14:4;
+ unsigned long portroute15:4;
+ unsigned long:4;
+ } __attribute__ ((packed));
+ };
+} __attribute__ ((packed)) hc_cap_t;
+
+typedef struct {
+ union {
+ u32 usbcmd;
+ volatile struct {
+ unsigned long rs:1;
+ unsigned long hcreset:1;
+ unsigned long frame_list_size:2;
+ unsigned long periodic_sched_enable:1;
+ unsigned long async_sched_enable:1;
+ unsigned long irq_on_async_advance_doorbell:1;
+ unsigned long light_hc_reset:1;
+ unsigned long async_sched_park_mode_count:2;
+ unsigned long:1;
+ unsigned long async_sched_park_mode_enable:1;
+ unsigned long:4;
+ unsigned long irq_threshold_count:8;
+ unsigned long:8;
+ } __attribute__ ((packed));
+ };
+ union {
+ u32 usbsts;
+ struct {
+ unsigned long usbint:1;
+ unsigned long usberrint:1;
+ unsigned long port_change_detect:1;
+ unsigned long frame_list_rollover:1;
+ unsigned long host_system_error:1;
+ unsigned long irq_on_async_advance:1;
+ unsigned long:6;
+ unsigned long hchalted:1;
+ unsigned long reclamation:1;
+ unsigned long periodic_sched_status:1;
+ unsigned long async_sched_status:1;
+ unsigned long:16;
+ } __attribute__ ((packed));
+ };
+ union {
+ u32 usbintr;
+ struct {
+ unsigned long en_usb_irq:1;
+ unsigned long en_usb_err_irq:1;
+ unsigned long en_port_change_irq:1;
+ unsigned long en_frame_list_rollover_irq:1;
+ unsigned long en_host_system_error_irq:1;
+ unsigned long en_irq_on_async_advance:1;
+ unsigned long:26;
+ } __attribute__ ((packed));
+ };
+ u32 frindex;
+ u32 ctrldssegment;
+ u32 periodiclistbase;
+ u32 asynclistaddr;
+ u8 res1[0x3f-0x1c];
+ u32 configflag;
+ portsc_t portsc[0];
+} hc_op_t;
+
+typedef struct {
+ union {
+ u32 next_qtd;
+ struct {
+ unsigned long terminate:1;
+ unsigned long:4;
+ unsigned long:27;
+ } __attribute__ ((packed));
+ };
+ union {
+ u32 alt_next_qtd;
+ struct {
+ unsigned long alt_terminate:1;
+ unsigned long:4;
+ unsigned long:27;
+ } __attribute__ ((packed));
+ };
+ struct {
+ union {
+ volatile u8 status;
+ struct {
+ volatile unsigned long perr:1;
+ volatile unsigned long splitxstate:1;
+ volatile unsigned long missed_mframe:1;
+ volatile unsigned long xact_err:1;
+ volatile unsigned long babble:1;
+ volatile unsigned long data_buf_err:1;
+ volatile unsigned long halted:1;
+ volatile unsigned long active:1;
+ } __attribute__ ((packed));
+ };
+ unsigned long pid:2;
+ volatile unsigned long cerr:2;
+ volatile unsigned long c_page:3;
+ unsigned long ioc:1;
+ volatile unsigned long total_len:15;
+ volatile unsigned long dt:1;
+ } __attribute__ ((packed));
+ union {
+ u32 bufptr0;
+ struct {
+ volatile unsigned long cur_off:12;
+ unsigned long:20;
+ } __attribute__ ((packed));
+ };
+ u32 bufptrs[4];
+ u32 bufptrs64[5];
+} __attribute__ ((packed)) qtd_t;
+
+typedef struct {
+ union {
+ u32 horiz_link_ptr;
+ struct {
+ unsigned long terminate:1;
+ unsigned long type:2;
+ unsigned long:1;
+ unsigned long:28;
+ } __attribute__ ((packed));
+ };
+ struct {
+ unsigned long addr:7;
+ unsigned long inactivate:1;
+ unsigned long ep:4;
+ unsigned long eps:2;
+ unsigned long dtc:1;
+ unsigned long reclaim_head:1;
+ unsigned long max_packet_len:11;
+ unsigned long non_hs_control_ep:1;
+ unsigned long nak_cnt_reload:4;
+ } __attribute__ ((packed));
+ struct {
+ unsigned long irq_sched_mask:8;
+ unsigned long split_compl_mask:8;
+ unsigned long hub_addr:7;
+ unsigned long port_num:7;
+ unsigned long pipe_multiplier:2;
+ } __attribute__ ((packed));
+ volatile u32 current_td_ptr;
+ volatile qtd_t td;
+} ehci_qh_t;
+
+typedef struct ehci {
+ hc_cap_t *capabilities;
+ hc_op_t *operation;
+} ehci_t;
+
+
+#define EHCI_INST(controller) ((ehci_t*)((controller)->instance))
+
+#endif