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Version 0.02

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This commit is contained in:
NIIBE Yutaka
2013-11-08 11:37:53 +09:00
parent e957d1aff8
commit 21c3f461c5
6 changed files with 55 additions and 45 deletions
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67
example-cdc/usb_stm32f103.c
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@@ -93,8 +93,8 @@ static struct DATA_INFO *const data_p = &data_info;
/* Buffer Table address register */
#define BTABLE ((volatile uint16_t *)(REG_BASE + 0x50))
#define ISTR_CTR (0x8000) /* Correct TRansfer (clear-only bit) */
#define ISTR_DOVR (0x4000) /* DMA OVeR/underrun (clear-only bit) */
#define ISTR_CTR (0x8000) /* Correct TRansfer (read-only bit) */
#define ISTR_OVR (0x4000) /* OVeR/underrun (clear-only bit) */
#define ISTR_ERR (0x2000) /* ERRor (clear-only bit) */
#define ISTR_WKUP (0x1000) /* WaKe UP (clear-only bit) */
#define ISTR_SUSP (0x0800) /* SUSPend (clear-only bit) */
@@ -105,8 +105,7 @@ static struct DATA_INFO *const data_p = &data_info;
#define ISTR_DIR (0x0010) /* DIRection of transaction (read-only bit) */
#define ISTR_EP_ID (0x000F) /* EndPoint IDentifier (read-only bit) */
#define CLR_CTR (~ISTR_CTR) /* clear Correct TRansfer bit */
#define CLR_DOVR (~ISTR_DOVR) /* clear DMA OVeR/underrun bit*/
#define CLR_OVR (~ISTR_OVR) /* clear OVeR/underrun bit*/
#define CLR_ERR (~ISTR_ERR) /* clear ERRor bit */
#define CLR_WKUP (~ISTR_WKUP) /* clear WaKe UP bit */
#define CLR_SUSP (~ISTR_SUSP) /* clear SUSPend bit */
@@ -115,7 +114,7 @@ static struct DATA_INFO *const data_p = &data_info;
#define CLR_ESOF (~ISTR_ESOF) /* clear Expected Start Of Frame bit */
#define CNTR_CTRM (0x8000) /* Correct TRansfer Mask */
#define CNTR_DOVRM (0x4000) /* DMA OVeR/underrun Mask */
#define CNTR_OVRM (0x4000) /* OVeR/underrun Mask */
#define CNTR_ERRM (0x2000) /* ERRor Mask */
#define CNTR_WKUPM (0x1000) /* WaKe UP Mask */
#define CNTR_SUSPM (0x0800) /* SUSPend Mask */
@@ -391,19 +390,19 @@ usb_interrupt_handler (void)
{
uint16_t istr_value = st103_get_istr ();
if (istr_value & ISTR_CTR)
if ((istr_value & ISTR_CTR))
usb_handle_transfer ();
if (istr_value & ISTR_RESET)
if ((istr_value & ISTR_RESET))
{
st103_set_istr (CLR_RESET);
usb_cb_device_reset ();
}
if (istr_value & ISTR_DOVR)
st103_set_istr (CLR_DOVR);
if ((istr_value & ISTR_OVR))
st103_set_istr (CLR_OVR);
if (istr_value & ISTR_ERR)
if ((istr_value & ISTR_ERR))
st103_set_istr (CLR_ERR);
}
@@ -539,7 +538,7 @@ static int std_get_status (uint8_t req,
uint8_t endpoint = (index & 0x0f);
uint16_t status;
if ((index & 0x70) != 0 || endpoint == ENDP0)
if ((index & 0x70) || endpoint == ENDP0)
return USB_UNSUPPORT;
if ((index & 0x80))
@@ -938,35 +937,29 @@ usb_handle_transfer (void)
uint16_t istr_value;
uint8_t ep_index;
while (((istr_value = st103_get_istr ()) & ISTR_CTR) != 0)
while (((istr_value = st103_get_istr ()) & ISTR_CTR))
{
ep_index = (istr_value & ISTR_EP_ID);
/* Decode and service non control endpoints interrupt */
/* process related endpoint register */
ep_value = st103_get_epreg (ep_index);
if (ep_index == 0)
{
if ((istr_value & ISTR_DIR) == 0)
{ /* DIR = 0 */
/* DIR = 0 => IN int */
/* DIR = 0 implies that (EP_CTR_TX = 1) always */
st103_ep_clear_ctr_tx (ENDP0);
if ((ep_value & EP_CTR_TX))
{
st103_ep_clear_ctr_tx (ep_index);
handle_in0 ();
}
else
{ /* DIR = 1 */
/* DIR = 1 & CTR_RX => SETUP or OUT int */
/* DIR = 1 & (CTR_TX | CTR_RX) => 2 int pending */
ep_value = st103_get_epreg (ENDP0);
if ((ep_value & EP_SETUP) != 0)
{
st103_ep_clear_ctr_rx (ENDP0);
handle_setup0 ();
}
else if ((ep_value & EP_CTR_RX) != 0)
{
st103_ep_clear_ctr_rx (ENDP0);
handle_out0 ();
}
if ((ep_value & EP_CTR_RX))
{
st103_ep_clear_ctr_rx (ep_index);
if ((ep_value & EP_SETUP))
handle_setup0 ();
else
handle_out0 ();
}
if (dev_p->state == STALLED)
@@ -974,11 +967,7 @@ usb_handle_transfer (void)
}
else
{
/* Decode and service non control endpoints interrupt */
/* process related endpoint register */
ep_value = st103_get_epreg (ep_index);
if ((ep_value & EP_CTR_RX) != 0)
if ((ep_value & EP_CTR_RX))
{
st103_ep_clear_ctr_rx (ep_index);
switch ((ep_index - 1))
@@ -993,7 +982,7 @@ usb_handle_transfer (void)
}
}
if ((ep_value & EP_CTR_TX) != 0)
if ((ep_value & EP_CTR_TX))
{
st103_ep_clear_ctr_tx (ep_index);
switch ((ep_index - 1))