adapted setup_port to old, clean state

[ppcskel.git] / usb / host / ohci.c

diff --git a/usb/host/ohci.c b/usb/host/ohci.c
index 5e41bb6565c3546ad4970740a09dd7a33794e7a6..ce23376819570408e34841d74ce2d6e87bda0d52 100644 (file)
--- a/usb/host/ohci.c
+++ b/usb/host/ohci.c
@@ -26,8 +26,17 @@ Copyright (C) 2009     Sebastian Falbesoner <sebastian.falbesoner@gmail.com>
                           (((dword) & 0x0000FF00) << 8)  | \
                           (((dword) & 0x000000FF) << 24) )
 
+static struct endpoint_descriptor *allocate_endpoint();
+static struct general_td *allocate_general_td(size_t);
+static void control_quirk();
+static void dbg_op_state();
+static void dbg_td_flag(u32 flag);
+static void configure_ports(u8 from_init);
+static void setup_port(u32 reg, u8 from_init);
+
 static struct ohci_hcca hcca_oh0;
 
+
 static struct endpoint_descriptor *allocate_endpoint()
 {
        struct endpoint_descriptor *ep;
@@ -350,17 +359,59 @@ void hcdi_init()
        write32(OHCI0_HC_CONTROL, OHCI_CONTROL_INIT | OHCI_USB_OPER);
 
        /* wake on ConnectStatusChange, matching external hubs */
-       set32(OHCI0_HC_RH_STATUS, RH_HS_DRWE);
+       write32(OHCI0_HC_RH_STATUS, /*RH_HS_DRWE |*/ RH_HS_LPSC);
 
        /* Choose the interrupts we care about now, others later on demand */
        write32(OHCI0_HC_INT_STATUS, ~0);
        write32(OHCI0_HC_INT_ENABLE, OHCI_INTR_INIT);
 
+       //wtf?
+       wait_ms ((read32(OHCI0_HC_RH_DESCRIPTOR_A) >> 23) & 0x1fe);
+
+       configure_ports((u8)1);
        irq_restore(cookie);
 
        dbg_op_state();
 }
 
+static void configure_ports(u8 from_init)
+{
+       printf("OHCI0_HC_RH_DESCRIPTOR_A:\t0x%08X\n", read32(OHCI0_HC_RH_DESCRIPTOR_A));
+       printf("OHCI0_HC_RH_DESCRIPTOR_B:\t0x%08X\n", read32(OHCI0_HC_RH_DESCRIPTOR_B));
+       printf("OHCI0_HC_RH_STATUS:\t\t0x%08X\n", read32(OHCI0_HC_RH_STATUS));
+       printf("OHCI0_HC_RH_PORT_STATUS_1:\t0x%08X\n", read32(OHCI0_HC_RH_PORT_STATUS_1));
+       printf("OHCI0_HC_RH_PORT_STATUS_2:\t0x%08X\n", read32(OHCI0_HC_RH_PORT_STATUS_2));
+
+       setup_port(OHCI0_HC_RH_PORT_STATUS_1, from_init);
+       setup_port(OHCI0_HC_RH_PORT_STATUS_2, from_init);
+       printf("configure_ports done\n");
+}
+
+static void setup_port(u32 reg, u8 from_init)
+{
+       u32 port = read32(reg);
+       if((port & RH_PS_CCS) && ((port & RH_PS_CSC) || from_init)) {
+               write32(reg, RH_PS_CSC);
+
+               wait_ms(150);
+
+               /* clear CSC flag, set PES and start port reset (PRS) */
+               write32(reg, RH_PS_PES);
+               while(!(read32(reg) & RH_PS_PES)) {
+                       printf("fu\n");
+                       return;
+               }
+
+               write32(reg, RH_PS_PRS);
+
+               /* spin until port reset is complete */
+               while(!(read32(reg) & RH_PS_PRSC)); // hint: it may stuck here
+               printf("loop done\n");
+
+               (void) usb_add_device();
+       }
+}
+
 void hcdi_irq()
 {
        /* read interrupt status */
@@ -393,11 +444,7 @@ void hcdi_irq()
        if (flags & OHCI_INTR_RHSC) {
                printf("RootHubStatusChange\n");
                /* TODO: set some next_statechange variable... */
-               printf("OHCI0_HC_RH_DESCRIPTOR_A:\t0x%08X\n", read32(OHCI0_HC_RH_DESCRIPTOR_A));
-               printf("OHCI0_HC_RH_DESCRIPTOR_B:\t0x%08X\n", read32(OHCI0_HC_RH_DESCRIPTOR_B));
-               printf("OHCI0_HC_RH_STATUS:\t\t0x%08X\n", read32(OHCI0_HC_RH_STATUS));
-               printf("OHCI0_HC_RH_PORT_STATUS_1:\t0x%08X\n", read32(OHCI0_HC_RH_PORT_STATUS_1));
-               printf("OHCI0_HC_RH_PORT_STATUS_2:\t0x%08X\n", read32(OHCI0_HC_RH_PORT_STATUS_2));
+               configure_ports(0);
                write32(OHCI0_HC_INT_STATUS, OHCI_INTR_RD | OHCI_INTR_RHSC);
        }
        /* ResumeDetected */