1 files changed, 261 insertions, 0 deletions

diff --git a/firmware/target/arm/as3525/usb-drv-as3525v2.c b/firmware/target/arm/as3525/usb-drv-as3525v2.c
new file mode 100644
index 0000000000..9afe8255e5
--- /dev/null
+++ b/firmware/target/arm/as3525/usb-drv-as3525v2.c
@@ -0,0 +1,261 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright © 2010 Amaury Pouly
+ *
+ * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "usb.h"
+#include "usb_drv.h"
+#include "as3525v2.h"
+#include "clock-target.h"
+#include "ascodec.h"
+#include "as3514.h"
+#include <stdbool.h>
+#include "panic.h"
+#define LOGF_ENABLE
+#include "logf.h"
+#include "usb-drv-as3525v2.h"
+
+struct usb_endpoint
+{
+    void *buf;
+    unsigned int len;
+    union
+    {
+        unsigned int sent;
+        unsigned int received;
+    };
+    bool wait;
+    bool busy;
+};
+
+static struct usb_endpoint endpoints[USB_NUM_ENDPOINTS*2];
+
+void usb_attach(void)
+{
+    usb_enable(true);
+}
+
+static void usb_delay(void)
+{
+    int i = 0;
+    while(i < 0x300)
+        i++;
+}
+
+static void as3525v2_connect(void)
+{
+    logf("usb: init as3525v2");
+    /* 1) enable usb core clock */
+    CGU_PERI |= CGU_USB_CLOCK_ENABLE;
+    usb_delay();
+    /* 2) enable usb phy clock */
+    CGU_USB |= 0x20;
+    usb_delay();
+    /* 3) clear "stop pclk" */
+    USB_PCGCCTL &= ~0x1;
+    usb_delay();
+    /* 4) clear "power clamp" */
+    USB_PCGCCTL &= ~0x4;
+    usb_delay();
+    /* 5) clear "reset power down module" */
+    USB_PCGCCTL &= ~0x8;
+    usb_delay();
+    /* 6) set "power on program done" */
+    USB_DCTL |= 0x800;
+    usb_delay();
+    /* 7) core soft reset */
+    USB_GRSTCTL |= USB_GRSTCTL_csftrst;
+    usb_delay();
+    /* 8) hclk soft reset */
+    USB_GRSTCTL |= USB_GRSTCTL_hsftrst;
+    usb_delay();
+    /* 9) flush and reset everything */
+    USB_GRSTCTL |= 0x3f;
+    usb_delay();
+    /* 10) force device mode*/
+    USB_GUSBCFG &= ~0x20000000;
+    USB_GUSBCFG |= 0x40000000;
+    usb_delay();
+    /* 11) Do something that is probably CCU related but undocumented*/
+    CCU_USB_THINGY &= ~0x1000;
+    usb_delay();
+    /* 12) reset usb core parameters (dev addr, speed, ...) */
+    USB_DCFG = 0;
+    usb_delay();
+}
+
+static void core_reset(void)
+{
+    unsigned int i = 0;
+    /* Wait for AHB master IDLE state. */
+    while((USB_GRSTCTL & USB_GRSTCTL_ahbidle) == 0);
+    {
+        /*udelay(10);*/
+        sleep(1);
+    }
+    /* Core Soft Reset */
+    USB_GRSTCTL |= USB_GRSTCTL_csftrst;
+    /* Waits for the hardware to clear reset bit */
+    while(USB_GRSTCTL & USB_GRSTCTL_csftrst && i < 0x300)
+        i++;
+
+    if(USB_GRSTCTL & USB_GRSTCTL_csftrst)
+        logf("oops, usb core soft reset hang :(");
+
+    /* Wait for 3 PHY Clocks */
+    /*mdelay(100);*/
+    sleep(1);
+
+    logf("%ld endpoints", USB_GHWCFG2_NUM_EP);
+    for(i = 0; i < USB_GHWCFG2_NUM_EP; i++)
+        logf("  EP%d: IN=%ld OUT=%ld", i, USB_GHWCFG1_IN_EP(i), USB_GHWCFG1_OUT_EP(i));
+    logf("hwcfg1: %08lx", USB_GHWCFG1);
+    logf("hwcfg2: %08lx", USB_GHWCFG2);
+    logf("hwcfg3: %08lx", USB_GHWCFG3);
+    logf("hwcfg4: %08lx", USB_GHWCFG4);
+
+    logf("%ld in ep", USB_GHWCFG4_NUM_IN_EP);
+    logf("tot fifo sz: %ld", USB_GHWCFG3_DFIFO_LEN);
+    logf("rx fifo sz: %ld", USB_GRXFSIZ);
+    logf("tx fifo sz: %ld", USB_GNPTXFSIZ >> 16); /* there is no perio ep so print only non-perio */
+}
+
+static void core_init(void)
+{
+    /* Reset the Controller */
+    core_reset();
+
+    /* Setup phy for high speed */
+    /* 1) select utmi */
+    /*    fixme: the clip+ hardware support utmi only, this is useless */
+    //USB_GUSBCFG &= ~USB_GUSBCFG_ulpi_utmi_sel;
+    /* 2) select utmi 16-bit wide bus */
+    USB_GUSBCFG |= USB_GUSBCFG_phy_if;
+    /* 3) core reset */
+    /*    fixme: linux patch says the phy parameters survive the soft reset so
+     *           perhaps this part can be done only one type but I don't know
+     *           what happened when phy goes to standby mode and clock are disabled */
+    core_reset();
+
+    /* fixme: at this point, the linux patch sets ulpi bits to 0 on utmi selection
+     *        but the clip+ hardware does not support it so don't bother with
+     *        that */
+
+    /* fixme: the current code is for internal DMA only, the clip+ architecture
+     *        define the internal DMA model */
+    /* Set burstlen */
+    USB_GAHBCFG |= USB_GAHBCFG_INT_DMA_BURST_INCR << USB_GAHBCFG_hburstlen_bit_pos;
+    /* Enable DMA */
+    USB_GAHBCFG |= USB_GAHBCFG_dma_enable;
+    /* Disable HNP and SRP, not sure it's useful because we already forced dev mode */
+    USB_GUSBCFG &= ~(USB_GUSBCFG_SRP_cap | USB_GUSBCFG_HNP_cap);
+}
+
+void usb_drv_init(void)
+{
+    logf("usb_drv_init");
+    as3525v2_connect();
+
+    logf("usb: synopsis id: %lx", USB_GSNPSID);
+
+    core_init();
+}
+
+void usb_drv_exit(void)
+{
+    logf("usb_drv_exit");
+}
+
+int usb_drv_port_speed(void)
+{
+    return 0;
+}
+
+int usb_drv_request_endpoint(int type, int dir)
+{
+    (void) type;
+    (void) dir;
+    return -1;
+}
+
+void usb_drv_release_endpoint(int ep)
+{
+    (void) ep;
+}
+
+void usb_drv_cancel_all_transfers(void)
+{
+}
+
+int usb_drv_recv(int ep, void *ptr, int len)
+{
+    (void) ep;
+    (void) ptr;
+    (void) len;
+    return -1;
+}
+
+int usb_drv_send(int ep, void *ptr, int len)
+{
+    (void) ep;
+    (void) ptr;
+    (void) len;
+    return -1;
+}
+
+int usb_drv_send_nonblocking(int ep, void *ptr, int len)
+{
+    (void) ep;
+    (void) ptr;
+    (void) len;
+    return -1;
+}
+
+/* interrupt service routine */
+void INT_USB(void)
+{
+    panicf("USB interrupt !");
+}
+
+/* (not essential? , not implemented in usb-tcc.c) */
+void usb_drv_set_test_mode(int mode)
+{
+    (void) mode;
+}
+
+void usb_drv_set_address(int address)
+{
+    (void) address;
+}
+
+void usb_drv_stall(int ep, bool stall, bool in)
+{
+    (void) ep;
+    (void) stall;
+    (void) in;
+}
+
+bool usb_drv_stalled(int ep, bool in)
+{
+    (void) ep;
+    (void) in;
+    return true;
+    return true;
+}
+