Re: [PATCH V5 1/9] Add Synopsys DesignWare HS USB OTG Control and Status Register (CSR).

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Hi,

On Wed, Oct 20, 2010 at 07:42:44PM -0500, Fushen Chen wrote:
Control and Status Register (CSR) are classified as follows:
- Core Global Registers
- Device Mode Registers
- Device Global Registers
- Device Endpoint Specific Registers
- Host Mode Registers
- Host Global Registers
- Host Port CSRs
- Host Channel Specific Registers

Signed-off-by: Fushen Chen <fchen@xxxxxxx>
Signed-off-by: Mark Miesfeld <mmiesfeld@xxxxxxx>
---
drivers/usb/dwc_otg/dwc_otg_regs.h | 3269 ++++++++++++++++++++++++++++++++++++
1 files changed, 3269 insertions(+), 0 deletions(-)
create mode 100644 drivers/usb/dwc_otg/dwc_otg_regs.h

diff --git a/drivers/usb/dwc_otg/dwc_otg_regs.h b/drivers/usb/dwc_otg/dwc_otg_regs.h
new file mode 100644
index 0000000..fdc40f9
--- /dev/null
+++ b/drivers/usb/dwc_otg/dwc_otg_regs.h
@@ -0,0 +1,3269 @@
+/*
+ * DesignWare HS OTG controller driver
+ * Copyright (C) 2006 Synopsys, Inc.
+ * Portions Copyright (C) 2010 Applied Micro Circuits Corporation.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License version 2 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see http://www.gnu.org/licenses
+ * or write to the Free Software Foundation, Inc., 51 Franklin Street,
+ * Suite 500, Boston, MA 02110-1335 USA.
+ *
+ * Based on Synopsys driver version 2.60a
+ * Modified by Mark Miesfeld <mmiesfeld@xxxxxxx>
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 SYNOPSYS, INC. 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 __DWC_OTG_REGS_H__
+#define __DWC_OTG_REGS_H__
+
+#include <linux/types.h>
+
+/*
+ * This file contains the data structures for accessing the DWC_otg core
+ * registers.
+ *
+ * The application interfaces with the HS OTG core by reading from and
+ * writing to the Control and Status Register (CSR) space through the
+ * AHB Slave interface. These registers are 32 bits wide, and the
+ * addresses are 32-bit-block aligned.
+ * CSRs are classified as follows:
+ * - Core Global Registers
+ * - Device Mode Registers
+ * - Device Global Registers
+ * - Device Endpoint Specific Registers
+ * - Host Mode Registers
+ * - Host Global Registers
+ * - Host Port CSRs
+ * - Host Channel Specific Registers
+ *
+ * Only the Core Global registers can be accessed in both Device and
+ * Host modes. When the HS OTG core is operating in one mode, either
+ * Device or Host, the application must not access registers from the
+ * other mode. When the core switches from one mode to another, the
+ * registers in the new mode of operation must be reprogrammed as they
+ * would be after a power-on reset.
+ */
+
+/*
+ * DWC_otg Core registers.  The core_global_regs structure defines the
+ * size and relative field offsets for the Core Global registers.
+ */
+struct core_global_regs {
+       /* OTG Control and Status Register.             Offset: 000h */
+       u32 gotgctl;

generally we use defines for the register space:

#define DWC_OTG_CTL		0x0000
#define DWC_OTG_INT		0x0004

and so on.

+#if defined(CONFIG_DWC_OTG_REG_LE)
+/*
+ * This union represents the bit fields of the Core OTG Controland Status
+ * Register (GOTGCTL).  Set the bits using the bit fields then write the d32
+ * value to the register.
+ */
+union gotgctl_data {                           /* CONFIG_DWC_OTG_REG_LE */
+       u32 d32;
+       struct {
+               unsigned reserved31_21:11;
+               unsigned currmod:1;
+               unsigned bsesvld:1;
+               unsigned asesvld:1;
+               unsigned reserved17:1;
+               unsigned conidsts:1;
+               unsigned reserved1_12:4;
+               unsigned devhnpen:1;
+               unsigned hstsethnpen:1;
+               unsigned hnpreq:1;
+               unsigned hstnegscs:1;
+               unsigned reserved07_02:6;
+               unsigned sesreq:1;
+               unsigned sesreqscs:1;
+       } b;
+};

these would be defines too:

#define DWC_OTG_CTL_SESREQSCS	(1 << 0)
#define DWC_OTG_CTL_SESEQ	(1 << 1)

and so on.

--
balbi
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