diff options
Diffstat (limited to 'usb/otg/usb_drv.c')
| -rw-r--r-- | usb/otg/usb_drv.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/usb/otg/usb_drv.c b/usb/otg/usb_drv.c new file mode 100644 index 0000000..c29689c --- /dev/null +++ b/usb/otg/usb_drv.c @@ -0,0 +1,246 @@ +/* ----------------------------------------------------------------------------
+ * ATMEL Microcontroller Software Support
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
+ * ----------------------------------------------------------------------------
+ */
+
+//------------------------------------------------------------------------------
+// Headers
+//------------------------------------------------------------------------------
+
+#include <conf_usb.h>
+#include "usb_drv.h"
+#include <utility/trace.h>
+
+U8 global_pipe_nb=0;
+U8 global_endpoint_nb=0;
+unsigned char dBytes=0;
+char* pFifo;
+
+
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+//! This function configures an endpoint with the selected type.
+U8 dev_configure_endpoint(U8 ept, U8 type, U8 dir, U8 size, U8 bank, U8 nyet)
+{
+ unsigned char status=0;
+
+ // Enable endpoint
+ AT91C_BASE_OTGHS->OTGHS_DEVEPT |= (1<<ept);
+
+ AT91C_BASE_OTGHS->OTGHS_DEVEPTCFG[ept] = (bank<<2)|(size<<4)|(dir<<8)
+ |AT91C_OTGHS_AUTOSW |(type<<11);
+
+ AT91C_BASE_OTGHS->OTGHS_DEVEPTCFG[ept] |= AT91C_OTGHS_ALLOC;
+ if(!(AT91C_BASE_OTGHS->OTGHS_DEVEPTISR[ept]&AT91C_OTGHS_CFGOK)) {
+ TRACE_ERROR("Bad endpoint configuration\n\r");
+ status = 1;
+ }
+ if(nyet == NYET_ENABLED) {
+ AT91C_BASE_OTGHS->OTGHS_DEVEPTIDR[ept] = AT91C_OTGHS_NYETDIS;
+ }
+ else {
+ AT91C_BASE_OTGHS->OTGHS_DEVEPTIER[ept] = AT91C_OTGHS_NYETDIS;
+ }
+ return status;
+}
+
+
+
+
+//------------------------------------------------------------------------------
+// HOST
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+//! This function configures a pipe with the selected type.
+//! @param config0
+//! @param config1
+//! @return Is_endpoint_configured.
+//------------------------------------------------------------------------------
+U8 host_config_pipe(U8 config0, U8 config1)
+{
+ TRACE_DEBUG("host_config_pipe\n\r");
+ Host_enable_pipe();
+// UPCFG0X = config0;
+// UPCFG1X = config1;
+ Host_allocate_memory();
+ return (Is_pipe_configured());
+}
+
+//------------------------------------------------------------------------------
+//! This function returns the size configuration register value according
+//! to the endpint size detected inthe device enumeration process.
+//! @return pipe size register value.
+//------------------------------------------------------------------------------
+U8 host_determine_pipe_size(U16 size)
+{
+ //TRACE_DEBUG("host_determine_pipe_size\n\r");
+ if(size <= 8 ) {return (SIZE_8 );}
+ else if(size <= 16 ) {return (SIZE_16 );}
+ else if(size <= 32 ) {return (SIZE_32 );}
+ else if(size <= 64 ) {return (SIZE_64 );}
+ else if(size <= 128) {return (SIZE_128 );}
+ else if(size <= 256) {return (SIZE_256 );}
+ else if(size <= 512) {return (SIZE_512 );}
+ else {return (SIZE_1024);}
+}
+
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+U16 host_get_pipe_length(void)
+{
+ unsigned int size;
+
+ size = (AT91C_BASE_OTGHS->OTGHS_HSTPIPCFG[global_pipe_nb]&AT91C_OTGHS_PSIZE)>>4;
+ //TRACE_DEBUG("host_get_pipe_length = %d\n\r", (int)size);
+
+ if(size == SIZE_8 ) {return (8 );}
+ else if(size == SIZE_16 ) {return (16 );}
+ else if(size == SIZE_32 ) {return (32 );}
+ else if(size == SIZE_64 ) {return (64 );}
+ else if(size == SIZE_128) {return (128);}
+ else if(size == SIZE_256) {return (256);}
+ else if(size == SIZE_512) {return (512);}
+ else if(size == SIZE_1024){return (1024);}
+ else {TRACE_ERROR("Error size\n\r");return 0;}
+}
+
+
+//------------------------------------------------------------------------------
+//! host_disable_all_pipe.
+//!
+//! This function disable all pipes for the host controller
+//! Usefull to execute upon device disconnection.
+//!
+//! @return none.
+//------------------------------------------------------------------------------
+void host_disable_all_pipe(void)
+{
+ U8 i;
+
+ TRACE_DEBUG("host_disable_all_pipe\n\r");
+ for (i=0; i<7; i++) {
+ Host_reset_pipe(i);
+ Host_select_pipe(i);
+ Host_unallocate_memory();
+ Host_disable_pipe();
+ }
+}
+
+//------------------------------------------------------------------------------
+//! @brief Returns the pipe number that generates a USB communication interrupt
+//!
+//! This function sould be called only when an interrupt has been detected. Otherwize
+//! the return value is incorect
+//!
+//! @param none
+//!
+//! @return pipe_number
+//------------------------------------------------------------------------------
+U8 host_get_nb_pipe_interrupt(void)
+{
+ U8 interrupt_flags;
+ U8 i;
+
+ TRACE_DEBUG("host_get_nb_pipe_interrupt\n\r");
+ interrupt_flags = Host_get_pipe_interrupt();
+ for(i=0; i<MAX_EP_NB; i++) {
+ if (interrupt_flags & (1<<i)) {
+ return (i);
+ }
+ }
+ // This return should never occurs ....
+ TRACE_ERROR("Error\n\r");
+ return MAX_EP_NB+1;
+}
+
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+void host_configure_address( unsigned char pipe, unsigned char addr)
+{
+ if( pipe == 0 ) {
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR1 &= ~(unsigned int)AT91C_OTGHS_UHADDR_P0;
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR1 |= ((addr<<0) & AT91C_OTGHS_UHADDR_P0);
+ }
+ else if( pipe == 1 ) {
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR1 &= ~(unsigned int)AT91C_OTGHS_UHADDR_P1;
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR1 |= ((addr<<8) & AT91C_OTGHS_UHADDR_P1);
+ }
+ else if( pipe == 2 ) {
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR1 &= ~(unsigned int)AT91C_OTGHS_UHADDR_P2;
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR1 |= ((addr<<16) & AT91C_OTGHS_UHADDR_P2);
+ }
+ else if( pipe == 3 ) {
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR1 &= ~(unsigned int)AT91C_OTGHS_UHADDR_P3;
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR1 |= ((addr<<24) & AT91C_OTGHS_UHADDR_P3);
+ }
+ else if( pipe == 4 ) {
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR2 &= ~(unsigned int)AT91C_OTGHS_UHADDR_P4;
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR2 |= ((addr<<0) & AT91C_OTGHS_UHADDR_P4);
+ }
+ else if( pipe == 5 ) {
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR2 &= ~(unsigned int)AT91C_OTGHS_UHADDR_P5;
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR2 |= ((addr<<8) & AT91C_OTGHS_UHADDR_P5);
+ }
+ else if( pipe == 6 ) {
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR2 &= ~(unsigned int)AT91C_OTGHS_UHADDR_P6;
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR2 |= ((addr<<16) & AT91C_OTGHS_UHADDR_P6);
+ }
+ else if( pipe == 7 ) {
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR2 &= ~(unsigned int)AT91C_OTGHS_UHADDR_P7;
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR2 |= ((addr<<24) & AT91C_OTGHS_UHADDR_P7);
+ }
+ else if( pipe == 8 ) {
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR3 &= ~(unsigned int)AT91C_OTGHS_UHADDR_P8;
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR3 |= ((addr<<0) & AT91C_OTGHS_UHADDR_P8);
+ }
+ else if( pipe == 9 ) {
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR3 &= ~(unsigned int)AT91C_OTGHS_UHADDR_P9;
+ AT91C_BASE_OTGHS->OTGHS_HSTADDR3 |= ((addr<<8) & AT91C_OTGHS_UHADDR_P9);
+ }
+ else {
+ TRACE_ERROR("pipe not defined\n\r");
+ }
+}
+
+
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+void host_configure_pipe(U8 pip, U8 type, U8 token, U8 ep_num, U8 size, U8 bank, U8 freq)
+{
+ AT91C_BASE_OTGHS->OTGHS_HSTPIP |= (1<<pip);
+
+ if((type & AT91C_OTGHS_PTYPE_INT_PIP)==0) {
+ freq =0;
+ }
+
+ AT91C_BASE_OTGHS->OTGHS_HSTPIPCFG[pip] = (bank<< 2) | (size << 4) | (token<< 8)
+ | (type<<12) |(ep_num<<16)| (freq <<24);
+ AT91C_BASE_OTGHS->OTGHS_HSTPIPCFG[pip] |= AT91C_OTGHS_ALLOC;
+}
+
+
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