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dcd_msp430x5xx: Setup packets are now received successfully (with delay).

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This commit is contained in:
William D. Jones 2019-09-24 03:43:51 -04:00
parent d2e4af5a7b
commit 550e8215f3
1 changed files with 40 additions and 1 deletions
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41
src/portable/ti/msp430x5xx/dcd_msp430x5xx.c
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@ -35,6 +35,8 @@
/*------------------------------------------------------------------*/
/* MACRO TYPEDEF CONSTANT ENUM
*------------------------------------------------------------------*/
#define USB_BUF_PTR(_x) (uint8_t *) ((uint16_t) _x)
// usbpllir_mirror and usbmaintl_mirror can be added later if needed.
static volatile uint16_t usbiepie_mirror = 0;
static volatile uint16_t usboepie_mirror = 0;
@ -46,7 +48,19 @@ uint8_t _setup_packet[8];
static void bus_reset(void)
{
// Enable the control EP 0. Also enable Indication Enable- a guard flag
// separate from the Interrupt Enable mask.
USBOEPCNF_0 |= (UBME | USBIIE);
USBIEPCNF_0 |= (UBME | USBIIE);
// Enable interrupts for this endpoint.
USBOEPIE |= BIT0;
USBIEPIE |= BIT0;
// Clear NAK so packets can be received.
// Dedicated buffers in hardware for SETUP and EP0, no setup needed.
USBOEPCNT_0 &= ~NAK;
USBIEPCNT_0 &= ~NAK;
}
@ -180,11 +194,28 @@ void dcd_edpt_clear_stall (uint8_t rhport, uint8_t ep_addr)
/*------------------------------------------------------------------*/
static void handle_setup_packet(void)
static void receive_packet(void)
{
}
static void transmit_packet(void)
{
}
static void handle_setup_packet(void)
{
volatile uint8_t * setup_buf = &USBSUBLK;
for(int i = 0; i < 8; i++)
{
_setup_packet[i] = setup_buf[i];
}
dcd_event_setup_received(0, (uint8_t*) &_setup_packet[0], true);
}
void __attribute__ ((interrupt(USB_UBM_VECTOR))) USB_UBM_ISR(void)
{
// Setup is special- reading USBVECINT to handle setup packets is done to
@ -209,6 +240,14 @@ void __attribute__ ((interrupt(USB_UBM_VECTOR))) USB_UBM_ISR(void)
case USBVECINT_SETUP_PACKET_RECEIVED:
break;
case USBVECINT_INPUT_ENDPOINT0:
transmit_packet();
break;
case USBVECINT_OUTPUT_ENDPOINT0:
receive_packet();
break;
default:
break;
}