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-rw-r--r--payloads/libpayload/drivers/Makefile.inc2
-rw-r--r--payloads/libpayload/drivers/usb/ehci.c359
-rw-r--r--payloads/libpayload/drivers/usb/ehci.h40
-rw-r--r--payloads/libpayload/drivers/usb/ehci_private.h266
-rw-r--r--payloads/libpayload/drivers/usb/ehci_rh.c145
-rw-r--r--payloads/libpayload/drivers/usb/usbinit.c5
6 files changed, 814 insertions, 3 deletions
diff --git a/payloads/libpayload/drivers/Makefile.inc b/payloads/libpayload/drivers/Makefile.inc
index 134119fce4..e9496a60ed 100644
--- a/payloads/libpayload/drivers/Makefile.inc
+++ b/payloads/libpayload/drivers/Makefile.inc
@@ -62,6 +62,8 @@ TARGETS-$(CONFIG_USB_UHCI) += drivers/usb/uhci.o
TARGETS-$(CONFIG_USB_UHCI) += drivers/usb/uhci_rh.o
TARGETS-$(CONFIG_USB_OHCI) += drivers/usb/ohci.o
TARGETS-$(CONFIG_USB_OHCI) += drivers/usb/ohci_rh.o
+TARGETS-$(CONFIG_USB_EHCI) += drivers/usb/ehci.o
+TARGETS-$(CONFIG_USB_EHCI) += drivers/usb/ehci_rh.o
TARGETS-$(CONFIG_USB_XHCI) += drivers/usb/xhci.o
TARGETS-$(CONFIG_USB_XHCI) += drivers/usb/xhci_rh.o
TARGETS-$(CONFIG_USB_HID) += drivers/usb/usbhid.o
diff --git a/payloads/libpayload/drivers/usb/ehci.c b/payloads/libpayload/drivers/usb/ehci.c
new file mode 100644
index 0000000000..93cc00ced1
--- /dev/null
+++ b/payloads/libpayload/drivers/usb/ehci.c
@@ -0,0 +1,359 @@
+/*
+ * 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.
+ */
+
+#include <libpayload.h>
+#include "ehci.h"
+#include "ehci_private.h"
+
+static void dump_td(u32 addr) {
+ qtd_t *td = phys_to_virt(addr);
+ printf("td at phys(%x): active: %x, halted: %x, data_buf_err: %x\n babble: %x, xact_err: %x, missed_mframe: %x\n splitxstate: %x, perr: %x\n\n",
+ addr, td->active, td->halted, td->data_buf_err, td->babble, td->xact_err, td->missed_mframe, td->splitxstate, td->perr);
+ printf("- cerr: %x, total_len: %x\n\n", td->cerr, td->total_len);
+}
+
+static void ehci_start (hci_t *controller)
+{
+ EHCI_INST(controller)->operation->rs = 1;
+}
+
+static void ehci_stop (hci_t *controller)
+{
+ EHCI_INST(controller)->operation->rs = 0;
+}
+
+static void ehci_reset (hci_t *controller)
+{
+
+}
+
+static void ehci_shutdown (hci_t *controller)
+{
+
+}
+
+enum { EHCI_OUT=0, EHCI_IN=1, EHCI_SETUP=2 };
+
+/* returns handled bytes */
+int fill_td(qtd_t *td, void* data, int datalen) {
+ u32 total_len = 0;
+ u32 page_minus_1 = 0;
+
+ u32 start = virt_to_phys(data);
+ u32 page = start & ~4095;
+ u32 offset = start & 4095;
+ u32 page_len = 4096 - offset;
+
+ td->c_page = 0;
+ td->bufptr0 = page;
+ td->cur_off = offset;
+
+ if (datalen <= page_len) {
+ total_len = datalen;
+ } else {
+ datalen -= page_len;
+ total_len += page_len;
+
+ do {
+ /* we have a continguous mapping between virtual and physical memory */
+ page += 4096;
+
+ td->bufptrs[page_minus_1] = page;
+ if (datalen <= 4096) {
+ total_len += datalen;
+ break;
+ }
+ page_minus_1++;
+ datalen -= 4096;
+ total_len += 4096;
+ } while (page_minus_1<4);
+ }
+ td->total_len = total_len;
+ return total_len;
+}
+
+/* free up data structures */
+void free_qh_and_tds(ehci_qh_t *qh, qtd_t *cur) {
+ qtd_t *next;
+ while (cur) {
+ next = (qtd_t*)phys_to_virt(cur->next_qtd & ~31);
+ free(cur);
+ cur = next;
+ }
+ free(qh);
+}
+
+int wait_for_tds(qtd_t *head) {
+ int result = 0;
+ qtd_t *cur = head;
+ while (1) {
+ if (0) dump_td(virt_to_phys(cur));
+ while (cur->active && !cur->halted) udelay(60);
+ if (cur->halted) {
+ printf("ERROR with packet\n");
+ dump_td(virt_to_phys(cur));
+ printf("-----------------\n");
+ return 1;
+ }
+ if (cur->next_qtd & 1) {
+ return 0;
+ }
+ if (0) dump_td(virt_to_phys(cur));
+ /* helps debugging the TD chain */
+ if (0) printf("\nmoving from %x to %x\n", cur, phys_to_virt(cur->next_qtd));
+ cur = phys_to_virt(cur->next_qtd);
+ }
+ return result;
+}
+
+static int ehci_bulk (endpoint_t *ep, int size, u8 *data, int finalize)
+{
+ int result = 0;
+ int endp = ep->endpoint & 0xf;
+ int pid = (ep->direction==IN)?EHCI_IN:EHCI_OUT;
+
+ qtd_t *head = memalign(32, sizeof(qtd_t));
+ qtd_t *cur = head;
+ while (1) {
+ memset(cur, 0, sizeof(qtd_t));
+ cur->active = 1;
+ cur->pid = pid;
+ cur->cerr = 0;
+ u32 chunk = fill_td(cur, data, size);
+ size -= chunk;
+ data += chunk;
+
+ cur->alt_terminate = 1;
+ if (size == 0) {
+ cur->next_qtd = virt_to_phys(0);
+ cur->terminate = 1;
+ break;
+ } else {
+ qtd_t *next = memalign(32, sizeof(qtd_t));
+ cur->next_qtd = virt_to_phys(next);
+ cur = next;
+ }
+ }
+
+ /* create QH */
+ ehci_qh_t *qh = memalign(32, sizeof(ehci_qh_t));
+ memset(qh, 0, sizeof(ehci_qh_t));
+ qh->horiz_link_ptr = virt_to_phys(qh);
+ qh->type = 1; // FIXME: proper symbols for type. this is QH
+ qh->addr = ep->dev->address;
+ qh->ep = endp;
+ qh->eps = ep->dev->speed;
+ qh->dtc = 0;
+ qh->reclaim_head = 1;
+ qh->max_packet_len = ep->maxpacketsize;
+ qh->nak_cnt_reload = 0;
+ qh->pipe_multiplier = 3;
+
+ qh->td.next_qtd = virt_to_phys(head);
+ qh->td.dt = ep->toggle;
+ head->dt = ep->toggle;
+
+ /* hook up QH */
+ EHCI_INST(ep->dev->controller)->operation->asynclistaddr = virt_to_phys(qh);
+
+ /* start async schedule */
+ EHCI_INST(ep->dev->controller)->operation->async_sched_enable = 1;
+ while (!EHCI_INST(ep->dev->controller)->operation->async_sched_status) ; /* wait */
+
+ /* wait for result */
+ result = wait_for_tds(head);
+
+ /* disable async schedule */
+ EHCI_INST(ep->dev->controller)->operation->async_sched_enable = 0;
+ while (EHCI_INST(ep->dev->controller)->operation->async_sched_status) ; /* wait */
+
+ ep->toggle = cur->dt;
+
+ free_qh_and_tds(qh, head);
+ return result;
+}
+
+
+/* FIXME: Handle control transfers as 3 QHs, so the 2nd stage can be >0x4000 bytes */
+static int ehci_control (usbdev_t *dev, direction_t dir, int drlen, void *devreq,
+ int dalen, u8 *data)
+{
+ int endp = 0; // this is control. always 0 (for now)
+ int toggle = 0;
+ int mlen = dev->endpoints[0].maxpacketsize;
+ int result = 0;
+
+ /* create qTDs */
+ qtd_t *head = memalign(32, sizeof(qtd_t));
+ qtd_t *cur = head;
+ memset(cur, 0, sizeof(qtd_t));
+ cur->active = 1;
+ cur->dt = toggle;
+ cur->pid = EHCI_SETUP;
+ cur->cerr = 3;
+ if (fill_td(cur, devreq, drlen) != drlen) {
+ printf("ERROR: couldn't send the entire device request\n");
+ }
+ qtd_t *next = memalign(32, sizeof(qtd_t));
+ cur->next_qtd = virt_to_phys(next);
+ cur->alt_terminate = 1;
+
+ /* FIXME: We're limited to 16-20K (depending on alignment) for payload for now.
+ * Figure out, how toggle can be set sensibly in this scenario */
+ if (dalen > 0) {
+ toggle ^= 1;
+ cur = next;
+ memset(cur, 0, sizeof(qtd_t));
+ cur->active = 1;
+ cur->dt = toggle;
+ cur->pid = (dir == OUT)?EHCI_OUT:EHCI_IN;
+ cur->cerr = 3;
+ if (fill_td(cur, data, dalen) != dalen) {
+ printf("ERROR: couldn't send the entire control payload\n");
+ }
+ next = memalign(32, sizeof(qtd_t));
+ cur->next_qtd = virt_to_phys(next);
+ cur->alt_terminate = 1;
+ }
+
+ toggle = 1;
+ cur = next;
+ memset(cur, 0, sizeof(qtd_t));
+ cur->active = 1;
+ cur->dt = toggle;
+ cur->pid = (dir == OUT)?EHCI_IN:EHCI_OUT;
+ cur->cerr = 0;
+ fill_td(cur, NULL, 0);
+ cur->next_qtd = virt_to_phys(0);
+ cur->terminate = 1;
+ cur->alt_terminate = 1;
+
+ /* create QH */
+ ehci_qh_t *qh = memalign(32, sizeof(ehci_qh_t));
+ memset(qh, 0, sizeof(ehci_qh_t));
+ qh->horiz_link_ptr = virt_to_phys(qh);
+ qh->type = 1; // FIXME: proper symbols for type. this is QH
+ qh->addr = dev->address;
+ qh->ep = endp;
+ qh->eps = dev->speed;
+ qh->dtc = 1; /* Take data toggle from TD, as control transfers are special */
+ qh->reclaim_head = 1;
+ qh->max_packet_len = mlen;
+ qh->non_hs_control_ep = 0; // no support for non-HS devices at this time
+ qh->nak_cnt_reload = 0;
+ qh->pipe_multiplier = 3;
+ qh->td.next_qtd = virt_to_phys(head);
+
+ /* hook up QH */
+ EHCI_INST(dev->controller)->operation->asynclistaddr = virt_to_phys(qh);
+
+ /* start async schedule */
+ EHCI_INST(dev->controller)->operation->async_sched_enable = 1;
+ while (!EHCI_INST(dev->controller)->operation->async_sched_status) ; /* wait */
+
+ result = wait_for_tds(head);
+
+ /* disable async schedule */
+ EHCI_INST(dev->controller)->operation->async_sched_enable = 0;
+ while (EHCI_INST(dev->controller)->operation->async_sched_status) ; /* wait */
+
+ free_qh_and_tds(qh, head);
+ return result;
+}
+
+static void* ehci_create_intr_queue (endpoint_t *ep, int reqsize, int reqcount, int reqtiming)
+{
+ return NULL;
+}
+
+static void ehci_destroy_intr_queue (endpoint_t *ep, void *queue)
+{
+}
+
+static u8* ehci_poll_intr_queue (void *queue)
+{
+ return NULL;
+}
+
+hci_t *
+ehci_init (pcidev_t addr)
+{
+ int i;
+ hci_t *controller = new_controller ();
+
+ if (!controller)
+ usb_fatal("Could not create USB controller instance.\n");
+
+ controller->instance = malloc (sizeof (ehci_t));
+ if(!controller->instance)
+ usb_fatal("Not enough memory creating USB controller instance.\n");
+
+#define PCI_COMMAND 4
+#define PCI_COMMAND_IO 1
+#define PCI_COMMAND_MEMORY 2
+#define PCI_COMMAND_MASTER 4
+
+ u32 pci_command = pci_read_config32(addr, PCI_COMMAND);
+ pci_command = (pci_command | PCI_COMMAND_MEMORY) & ~PCI_COMMAND_IO ;
+ pci_write_config32(addr, PCI_COMMAND, pci_command);
+
+ controller->start = ehci_start;
+ controller->stop = ehci_stop;
+ controller->reset = ehci_reset;
+ controller->shutdown = ehci_shutdown;
+ controller->bulk = ehci_bulk;
+ controller->control = ehci_control;
+ controller->create_intr_queue = ehci_create_intr_queue;
+ controller->destroy_intr_queue = ehci_destroy_intr_queue;
+ controller->poll_intr_queue = ehci_poll_intr_queue;
+ for (i = 0; i < 128; i++) {
+ controller->devices[i] = 0;
+ }
+ init_device_entry (controller, 0);
+
+ EHCI_INST(controller)->capabilities = phys_to_virt(pci_read_config32(addr, USBBASE));
+ EHCI_INST(controller)->operation = (hc_op_t *)(phys_to_virt(pci_read_config32(addr, USBBASE)) + EHCI_INST(controller)->capabilities->caplength);
+
+ /* default value for frame length adjust */
+ pci_write_config8(addr, FLADJ, FLADJ_framelength(60000));
+
+ /* Enable operation of controller */
+ controller->start(controller);
+
+ /* take over all ports. USB1 should be blind now */
+ EHCI_INST(controller)->operation->configflag = 1;
+
+ /* TODO lots of stuff missing */
+
+ controller->devices[0]->controller = controller;
+ controller->devices[0]->init = ehci_rh_init;
+ controller->devices[0]->init (controller->devices[0]);
+
+ return controller;
+}
diff --git a/payloads/libpayload/drivers/usb/ehci.h b/payloads/libpayload/drivers/usb/ehci.h
new file mode 100644
index 0000000000..c66643c702
--- /dev/null
+++ b/payloads/libpayload/drivers/usb/ehci.h
@@ -0,0 +1,40 @@
+/*
+ * 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_H
+#define __EHCI_H
+
+#include <pci.h>
+#include <usb/usb.h>
+
+hci_t *ehci_init (pcidev_t addr);
+
+void ehci_rh_init (usbdev_t *dev);
+
+#endif
diff --git a/payloads/libpayload/drivers/usb/ehci_private.h b/payloads/libpayload/drivers/usb/ehci_private.h
new file mode 100644
index 0000000000..e63a81db13
--- /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
diff --git a/payloads/libpayload/drivers/usb/ehci_rh.c b/payloads/libpayload/drivers/usb/ehci_rh.c
new file mode 100644
index 0000000000..5eaeeb690e
--- /dev/null
+++ b/payloads/libpayload/drivers/usb/ehci_rh.c
@@ -0,0 +1,145 @@
+/*
+ * 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.
+ */
+
+#include <libpayload.h>
+#include "ehci.h"
+#include "ehci_private.h"
+
+typedef struct {
+ int n_ports;
+ /* typical C, n_ports is the number
+ * of ports, while ports[] spans [0,n_ports-1],
+ * even though the spec counts from 1.
+ */
+ volatile portsc_t *ports;
+ int *devices;
+} rh_inst_t;
+
+#define RH_INST(dev) ((rh_inst_t*)(dev)->data)
+
+static void
+ehci_rh_destroy (usbdev_t *dev)
+{
+ free (RH_INST(dev)->devices);
+ free (RH_INST(dev));
+}
+
+static void
+ehci_rh_hand_over_port (usbdev_t *dev, int port)
+{
+ volatile portsc_t *p = &(RH_INST(dev)->ports[port]);
+
+ printf("giving up port %x, it's USB1\n", port+1);
+
+ /* Lowspeed device. Hand over to companion */
+ p->port_owner = 1;
+ do {} while (!p->conn_status_change);
+ /* RW/C register, so clear it by writing 1 */
+ p->conn_status_change = 1;
+ return;
+}
+
+static void
+ehci_rh_scanport (usbdev_t *dev, int port)
+{
+ volatile portsc_t *p = &(RH_INST(dev)->ports[port]);
+ if (RH_INST(dev)->devices[port]!=-1) {
+ printf("Unregister device at port %x\n", port+1);
+ usb_detach_device(dev->controller, RH_INST(dev)->devices[port]);
+ RH_INST(dev)->devices[port]=-1;
+ }
+ /* device connected, handle */
+ if (p->current_conn_status) {
+ mdelay(100);
+ if (p->line_status == 0x1) {
+ ehci_rh_hand_over_port(dev, port);
+ return;
+ }
+ p->port_enable = 0;
+ p->port_reset = 1;
+ mdelay(50);
+ p->port_reset = 0;
+ /* Wait for flag change to finish. The controller might take a while */
+ while (p->port_reset) ;
+ if (!p->port_enable) {
+ ehci_rh_hand_over_port(dev, port);
+ return;
+ }
+ printf("port %x hosts a USB2 device\n", port+1);
+ RH_INST(dev)->devices[port] = usb_attach_device(dev->controller, dev->address, port, 2);
+ }
+ /* RW/C register, so clear it by writing 1 */
+ p->conn_status_change = 1;
+}
+
+static int
+ehci_rh_report_port_changes (usbdev_t *dev)
+{
+ int i;
+ for (i=0; i<RH_INST(dev)->n_ports; i++) {
+ if (RH_INST(dev)->ports[i].conn_status_change)
+ return i;
+ }
+ return -1;
+}
+
+static void
+ehci_rh_poll (usbdev_t *dev)
+{
+ int port;
+ while ((port = ehci_rh_report_port_changes (dev)) != -1)
+ ehci_rh_scanport (dev, port);
+}
+
+
+void
+ehci_rh_init (usbdev_t *dev)
+{
+ int i;
+
+ dev->destroy = ehci_rh_destroy;
+ dev->poll = ehci_rh_poll;
+
+ dev->data = malloc(sizeof(rh_inst_t));
+
+ RH_INST(dev)->n_ports = EHCI_INST(dev->controller)->capabilities->n_ports;
+ RH_INST(dev)->ports = EHCI_INST(dev->controller)->operation->portsc;
+
+ printf("root hub has %x ports\n", RH_INST(dev)->n_ports);
+
+ RH_INST(dev)->devices = malloc(RH_INST(dev)->n_ports * sizeof(int));
+ for (i=0; i < RH_INST(dev)->n_ports; i++) {
+ RH_INST(dev)->devices[i] = -1;
+ RH_INST(dev)->ports[i].pp = 1;
+ }
+
+ dev->address = 0;
+ dev->hub = -1;
+ dev->port = -1;
+}
diff --git a/payloads/libpayload/drivers/usb/usbinit.c b/payloads/libpayload/drivers/usb/usbinit.c
index 50dbf97470..f0d5a60d1e 100644
--- a/payloads/libpayload/drivers/usb/usbinit.c
+++ b/payloads/libpayload/drivers/usb/usbinit.c
@@ -31,7 +31,7 @@
#include <usb/usb.h>
#include "uhci.h"
#include "ohci.h"
-//#include "ehci.h"
+#include "ehci.h"
#include "xhci.h"
#include <usb/usbdisk.h>
@@ -90,8 +90,7 @@ usb_controller_initialize (int bus, int dev, int func)
if (prog_if == 0x20) {
printf ("EHCI controller\n");
#ifdef CONFIG_USB_EHCI
- //ehci_init(addr);
- printf ("Not supported.\n");
+ ehci_init(addr);
#else
printf ("Not supported.\n");
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 18:31:12 +0000