diff options
Diffstat (limited to 'usb/l0_usb.h')
| -rw-r--r-- | usb/l0_usb.h | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/usb/l0_usb.h b/usb/l0_usb.h deleted file mode 100644 index 243f19b..0000000 --- a/usb/l0_usb.h +++ /dev/null @@ -1,174 +0,0 @@ -#ifndef L0_USB_H -#define L0_USB_H - -#include "generic.h" -#include "l0_usb_def.h" - -class USB_l0 : public USB_generic { - private: - L0_USB_t& usb; - - uint32_t setupbuf[16]; - - uint32_t buf_end; - - uint8_t pending_addr; - - protected: - virtual void hw_set_address(uint8_t addr) { - usb_rblog.log("SetAddress: %d", addr); - - pending_addr = addr; - } - - virtual void hw_conf_ep(uint8_t ep, EPType type, uint32_t size) { - usb_rblog.log("Configuring EP%02x: size=%d", ep, size); - - uint8_t in = ep & 0x80; - ep &= 0x7f; - - uint32_t old_epr = usb.reg.EPR[ep]; - //uint32_t new_epr = 0x3220; - uint32_t new_epr = 0x8080 | ((type == EPType::Bulk ? 0 : type == EPType::Control ? 1 : type == EPType::Isochronous ? 2 : 3) << 9) | ep; - - if(in || ep == 0) { - usb.bufd[ep].ADDR_TX = buf_end; - buf_end += size; - - new_epr |= (old_epr & 0x0070) ^ 0x0020; - } - - if(!in) { - usb.bufd[ep].ADDR_RX = buf_end; - buf_end += size; - usb.bufd[ep].COUNT_RX = 0x8000 | (1 << 10); - - new_epr |= (old_epr & 0x7000) ^ 0x3000; - } - - usb.reg.EPR[ep] = new_epr; - - usb_rblog.log("EPR: old=%04x, new=%04x", old_epr, usb.reg.EPR[ep]); - } - - virtual void hw_set_stall(uint8_t ep) { - usb_rblog.log("Setting stall on EP %d", ep); - - usb.reg.EPR[ep] = (usb.reg.EPR[ep] & 0x878f) | 0x2030; - - //otg.dev_iep_reg[ep].DIEPCTL |= (1 << 21); - } - - public: - USB_l0(L0_USB_t& usb_periph, desc_t dev, desc_t conf) : USB_generic(dev, conf), usb(usb_periph) {} - - void init() { - usb.reg.CNTR = 3; - Time::sleep(10); - usb.reg.CNTR = 1; - Time::sleep(10); - // Exit power down mode. - usb.reg.CNTR = 0; - } - - void process() { - uint32_t istr = usb.reg.ISTR; - - if(istr & (1 << 10)) { - usb_rblog.log("USB Reset"); - - buf_end = 0x40; - - usb.reg.DADDR = 0x80; - - handle_reset(); - - usb.reg.ISTR = ~(1 << 10); - - return; - } - - if(istr & (1 << 15)) { - usb_rblog.log("USB Transfer: %02x", istr & 0x1f); - - uint32_t ep = istr & 0xf; - uint32_t dir = istr & 0x10; - - usb_rblog.log("EPR%d: %04x", ep, usb.reg.EPR[ep]); - - if(dir) { - // RX. - - usb_rblog.log("RXBUF: ADDR: %04x, COUNT: %04x", usb.bufd[ep].ADDR_RX, usb.bufd[ep].COUNT_RX); - - uint32_t len = usb.bufd[ep].COUNT_RX & 0x03ff; - - if(usb.reg.EPR[ep] & (1 << 11)) { - usb_rblog.log("SETUP packet received"); - - read(0, setupbuf, 8); - - handle_setup(setupbuf); - - } else { - usb_rblog.log("OUT packet received"); - - handle_out(ep, len); - } - - //usb.reg.EPR[ep] = 0x9280; - //usb.reg.EPR[ep] &= 0x078f; - - usb.reg.EPR[ep] = (usb.reg.EPR[ep] & 0x078f) | 0x1000; - } else { - // TX. - - usb_rblog.log("TXBUF: ADDR: %04x, COUNT: %04x", usb.bufd[ep].ADDR_TX, usb.bufd[ep].COUNT_TX); - - if(pending_addr) { - usb_rblog.log("Actually changing addr to: %d", pending_addr); - - usb.reg.DADDR = 0x80 | pending_addr; - - pending_addr = 0; - } - - usb.reg.EPR[ep] &= 0x870f; - } - usb_rblog.log("Leaving: EPR%d: %04x", ep, usb.reg.EPR[ep]); - } - } - - virtual bool ep_ready(uint32_t ep) { - return (usb.reg.EPR[ep] & 0x30) == 0x20; - } - - virtual void write(uint32_t ep, uint32_t* bufp, uint32_t len) { - usb_rblog.log("Writing, ep=%d, len=%d", ep, len); - - uint16_t* p = (uint16_t*)bufp; - uint32_t base = usb.bufd[ep].ADDR_TX >> 1; - - for(uint32_t i = 0; i < len; i += 2) { - usb.buf[base + (i >> 1)] = *p++; - } - - usb.bufd[ep].COUNT_TX = len; - usb.reg.EPR[ep] = (usb.reg.EPR[ep] & 0x870f) | 0x0010; - } - - virtual uint32_t read(uint32_t ep, uint32_t* bufp, uint32_t len) { - usb_rblog.log("Reading, ep=%d, len=%d", ep, len); - - uint16_t* p = (uint16_t*)bufp; - uint32_t base = usb.bufd[ep].ADDR_RX >> 1; - - for(uint32_t i = 0; i < len; i += 2) { - *p++ = uint16_t(usb.buf[base + (i >> 1)]); - } - - return len; - } -}; - -#endif |