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add hcd_configure() to change max NAK dynamically

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This commit is contained in:
hathach
2024-04-02 16:38:40 +07:00
parent e802fe0677
commit 7d3d60f96d
5 changed files with 32 additions and 15 deletions
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17
src/portable/analog/max3421/hcd_max3421.c
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@@ -30,6 +30,7 @@
#include <stdatomic.h>
#include "host/hcd.h"
#include "host/usbh.h"
//--------------------------------------------------------------------+
//
@@ -230,7 +231,9 @@ typedef struct {
} max3421_data_t;
static max3421_data_t _hcd_data;
static uint8_t _max_nak = MAX_NAK_DEFAULT; // max NAK before giving up in a usb frame
// max NAK before giving up in a frame. 0 means infinite NAKs
static uint8_t _max_nak = MAX_NAK_DEFAULT;
//--------------------------------------------------------------------+
// API: SPI transfer with MAX3421E
@@ -409,10 +412,11 @@ static void free_ep(uint8_t daddr) {
}
}
// Check if endpoint has an queued transfer
// Check if endpoint has an queued transfer and not reach max NAK
TU_ATTR_ALWAYS_INLINE static inline bool is_ep_pending(max3421_ep_t const * ep) {
uint8_t const state = ep->state;
return ep->packet_size && state >= EP_STATE_ATTEMPT_1 && state < EP_STATE_ATTEMPT_1 + _max_nak;
return ep->packet_size && (state >= EP_STATE_ATTEMPT_1) &&
(_max_nak == 0 || state < EP_STATE_ATTEMPT_1 + _max_nak);
}
// Find the next pending endpoint using round-robin scheduling, starting from next endpoint.
@@ -447,10 +451,11 @@ static max3421_ep_t * find_next_pending_ep(max3421_ep_t * cur_ep) {
// optional hcd configuration, called by tuh_configure()
bool hcd_configure(uint8_t rhport, uint32_t cfg_id, const void* cfg_param) {
(void) rhport;
(void) cfg_id;
(void) cfg_param;
TU_VERIFY(cfg_id == TUH_CFGID_MAX3421);
return false;
tuh_configure_param_t const* cfg = (tuh_configure_param_t const*) cfg_param;
_max_nak = cfg->max3421.max_nak;
return true;
}
// Initialize controller to host mode