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author | Joey Castillo <jose.castillo@gmail.com> | 2021-08-28 12:50:18 -0400 |
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committer | Joey Castillo <jose.castillo@gmail.com> | 2021-08-28 12:50:18 -0400 |
commit | 39a5c822a2a2e798e2e39ff8a98b7af84253026c (patch) | |
tree | fa157c98d3aea0d4f996e4415aa2a7ad1093ac05 /tinyusb/src/portable/raspberrypi/rp2040/rp2040_usb.h | |
parent | c9e00b83bbdcb05058806d915ec4fff3cf4e596f (diff) | |
download | Sensor-Watch-39a5c822a2a2e798e2e39ff8a98b7af84253026c.tar.gz Sensor-Watch-39a5c822a2a2e798e2e39ff8a98b7af84253026c.tar.bz2 Sensor-Watch-39a5c822a2a2e798e2e39ff8a98b7af84253026c.zip |
add tinyusb
Diffstat (limited to 'tinyusb/src/portable/raspberrypi/rp2040/rp2040_usb.h')
-rwxr-xr-x | tinyusb/src/portable/raspberrypi/rp2040/rp2040_usb.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/tinyusb/src/portable/raspberrypi/rp2040/rp2040_usb.h b/tinyusb/src/portable/raspberrypi/rp2040/rp2040_usb.h new file mode 100755 index 00000000..5570a731 --- /dev/null +++ b/tinyusb/src/portable/raspberrypi/rp2040/rp2040_usb.h @@ -0,0 +1,147 @@ +#ifndef RP2040_COMMON_H_ +#define RP2040_COMMON_H_ + +#if defined(RP2040_USB_HOST_MODE) && defined(RP2040_USB_DEVICE_MODE) +#error TinyUSB device and host mode not supported at the same time +#endif + +#include "common/tusb_common.h" + +#include "pico.h" +#include "hardware/structs/usb.h" +#include "hardware/irq.h" +#include "hardware/resets.h" + +#if defined(PICO_RP2040_USB_DEVICE_ENUMERATION_FIX) && !defined(TUD_OPT_RP2040_USB_DEVICE_ENUMERATION_FIX) +#define TUD_OPT_RP2040_USB_DEVICE_ENUMERATION_FIX PICO_RP2040_USB_DEVICE_ENUMERATION_FIX +#endif + + +#define pico_info(...) TU_LOG(2, __VA_ARGS__) +#define pico_trace(...) TU_LOG(3, __VA_ARGS__) + +// Hardware information per endpoint +struct hw_endpoint +{ + // Is this a valid struct + bool configured; + + // Transfer direction (i.e. IN is rx for host but tx for device) + // allows us to common up transfer functions + bool rx; + + uint8_t ep_addr; + uint8_t next_pid; + + // Endpoint control register + io_rw_32 *endpoint_control; + + // Buffer control register + io_rw_32 *buffer_control; + + // Buffer pointer in usb dpram + uint8_t *hw_data_buf; + + // Have we been stalled TODO remove later + bool stalled; + + // Current transfer information + bool active; + uint16_t remaining_len; + uint16_t xferred_len; + + // User buffer in main memory + uint8_t *user_buf; + + // Data needed from EP descriptor + uint16_t wMaxPacketSize; + + // Interrupt, bulk, etc + uint8_t transfer_type; + +#if TUSB_OPT_HOST_ENABLED + // Only needed for host + uint8_t dev_addr; + + // If interrupt endpoint + uint8_t interrupt_num; +#endif +}; + +void rp2040_usb_init(void); + +void hw_endpoint_xfer_start(struct hw_endpoint *ep, uint8_t *buffer, uint16_t total_len); +bool hw_endpoint_xfer_continue(struct hw_endpoint *ep); +void hw_endpoint_reset_transfer(struct hw_endpoint *ep); + +void _hw_endpoint_buffer_control_update32(struct hw_endpoint *ep, uint32_t and_mask, uint32_t or_mask); +static inline uint32_t _hw_endpoint_buffer_control_get_value32(struct hw_endpoint *ep) { + return *ep->buffer_control; +} +static inline void _hw_endpoint_buffer_control_set_value32(struct hw_endpoint *ep, uint32_t value) { + return _hw_endpoint_buffer_control_update32(ep, 0, value); +} +static inline void _hw_endpoint_buffer_control_set_mask32(struct hw_endpoint *ep, uint32_t value) { + return _hw_endpoint_buffer_control_update32(ep, ~value, value); +} +static inline void _hw_endpoint_buffer_control_clear_mask32(struct hw_endpoint *ep, uint32_t value) { + return _hw_endpoint_buffer_control_update32(ep, ~value, 0); +} + +static inline uintptr_t hw_data_offset(uint8_t *buf) +{ + // Remove usb base from buffer pointer + return (uintptr_t)buf ^ (uintptr_t)usb_dpram; +} + +extern const char *ep_dir_string[]; + +typedef union TU_ATTR_PACKED +{ + uint16_t u16; + struct TU_ATTR_PACKED + { + uint16_t xfer_len : 10; + uint16_t available : 1; + uint16_t stall : 1; + uint16_t reset_bufsel : 1; + uint16_t data_toggle : 1; + uint16_t last_buf : 1; + uint16_t full : 1; + }; +} rp2040_buffer_control_t; + +TU_VERIFY_STATIC(sizeof(rp2040_buffer_control_t) == 2, "size is not correct"); + +#if CFG_TUSB_DEBUG >= 3 +static inline void print_bufctrl16(uint32_t u16) +{ + rp2040_buffer_control_t bufctrl = { + .u16 = u16 + }; + + TU_LOG(3, "len = %u, available = %u, full = %u, last = %u, stall = %u, reset = %u, toggle = %u\r\n", + bufctrl.xfer_len, bufctrl.available, bufctrl.full, bufctrl.last_buf, bufctrl.stall, bufctrl.reset_bufsel, bufctrl.data_toggle); +} + +static inline void print_bufctrl32(uint32_t u32) +{ + uint16_t u16; + + u16 = u32 >> 16; + TU_LOG(3, " Buffer Control 1 0x%x: ", u16); + print_bufctrl16(u16); + + u16 = u32 & 0x0000ffff; + TU_LOG(3, " Buffer Control 0 0x%x: ", u16); + print_bufctrl16(u16); +} + +#else + +#define print_bufctrl16(u16) +#define print_bufctrl32(u32) + +#endif + +#endif |