1f1ae32a1SGerd Hoffmann /* 2f1ae32a1SGerd Hoffmann * FTDI FT232BM Device emulation 3f1ae32a1SGerd Hoffmann * 4f1ae32a1SGerd Hoffmann * Copyright (c) 2006 CodeSourcery. 5f1ae32a1SGerd Hoffmann * Copyright (c) 2008 Samuel Thibault <samuel.thibault@ens-lyon.org> 6f1ae32a1SGerd Hoffmann * Written by Paul Brook, reused for FTDI by Samuel Thibault 7f1ae32a1SGerd Hoffmann * 8f1ae32a1SGerd Hoffmann * This code is licensed under the LGPL. 9f1ae32a1SGerd Hoffmann */ 10f1ae32a1SGerd Hoffmann 11e532b2e0SPeter Maydell #include "qemu/osdep.h" 12da34e65cSMarkus Armbruster #include "qapi/error.h" 13f1ae32a1SGerd Hoffmann #include "qemu-common.h" 14f348b6d1SVeronia Bahaa #include "qemu/cutils.h" 15d49b6836SMarkus Armbruster #include "qemu/error-report.h" 16f1ae32a1SGerd Hoffmann #include "hw/usb.h" 17f1ae32a1SGerd Hoffmann #include "hw/usb/desc.h" 187566c6efSMarc-André Lureau #include "chardev/char-serial.h" 194d43a603SMarc-André Lureau #include "chardev/char-fe.h" 20f1ae32a1SGerd Hoffmann 21f1ae32a1SGerd Hoffmann //#define DEBUG_Serial 22f1ae32a1SGerd Hoffmann 23f1ae32a1SGerd Hoffmann #ifdef DEBUG_Serial 24f1ae32a1SGerd Hoffmann #define DPRINTF(fmt, ...) \ 25f1ae32a1SGerd Hoffmann do { printf("usb-serial: " fmt , ## __VA_ARGS__); } while (0) 26f1ae32a1SGerd Hoffmann #else 27f1ae32a1SGerd Hoffmann #define DPRINTF(fmt, ...) do {} while(0) 28f1ae32a1SGerd Hoffmann #endif 29f1ae32a1SGerd Hoffmann 30f1ae32a1SGerd Hoffmann #define RECV_BUF 384 31f1ae32a1SGerd Hoffmann 32f1ae32a1SGerd Hoffmann /* Commands */ 33f1ae32a1SGerd Hoffmann #define FTDI_RESET 0 34f1ae32a1SGerd Hoffmann #define FTDI_SET_MDM_CTRL 1 35f1ae32a1SGerd Hoffmann #define FTDI_SET_FLOW_CTRL 2 36f1ae32a1SGerd Hoffmann #define FTDI_SET_BAUD 3 37f1ae32a1SGerd Hoffmann #define FTDI_SET_DATA 4 38f1ae32a1SGerd Hoffmann #define FTDI_GET_MDM_ST 5 39f1ae32a1SGerd Hoffmann #define FTDI_SET_EVENT_CHR 6 40f1ae32a1SGerd Hoffmann #define FTDI_SET_ERROR_CHR 7 41f1ae32a1SGerd Hoffmann #define FTDI_SET_LATENCY 9 42f1ae32a1SGerd Hoffmann #define FTDI_GET_LATENCY 10 43f1ae32a1SGerd Hoffmann 44f1ae32a1SGerd Hoffmann #define DeviceOutVendor ((USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8) 45f1ae32a1SGerd Hoffmann #define DeviceInVendor ((USB_DIR_IN |USB_TYPE_VENDOR|USB_RECIP_DEVICE)<<8) 46f1ae32a1SGerd Hoffmann 47f1ae32a1SGerd Hoffmann /* RESET */ 48f1ae32a1SGerd Hoffmann 49f1ae32a1SGerd Hoffmann #define FTDI_RESET_SIO 0 50f1ae32a1SGerd Hoffmann #define FTDI_RESET_RX 1 51f1ae32a1SGerd Hoffmann #define FTDI_RESET_TX 2 52f1ae32a1SGerd Hoffmann 53f1ae32a1SGerd Hoffmann /* SET_MDM_CTRL */ 54f1ae32a1SGerd Hoffmann 55f1ae32a1SGerd Hoffmann #define FTDI_DTR 1 56f1ae32a1SGerd Hoffmann #define FTDI_SET_DTR (FTDI_DTR << 8) 57f1ae32a1SGerd Hoffmann #define FTDI_RTS 2 58f1ae32a1SGerd Hoffmann #define FTDI_SET_RTS (FTDI_RTS << 8) 59f1ae32a1SGerd Hoffmann 60f1ae32a1SGerd Hoffmann /* SET_FLOW_CTRL */ 61f1ae32a1SGerd Hoffmann 62f1ae32a1SGerd Hoffmann #define FTDI_RTS_CTS_HS 1 63f1ae32a1SGerd Hoffmann #define FTDI_DTR_DSR_HS 2 64f1ae32a1SGerd Hoffmann #define FTDI_XON_XOFF_HS 4 65f1ae32a1SGerd Hoffmann 66f1ae32a1SGerd Hoffmann /* SET_DATA */ 67f1ae32a1SGerd Hoffmann 68f1ae32a1SGerd Hoffmann #define FTDI_PARITY (0x7 << 8) 69f1ae32a1SGerd Hoffmann #define FTDI_ODD (0x1 << 8) 70f1ae32a1SGerd Hoffmann #define FTDI_EVEN (0x2 << 8) 71f1ae32a1SGerd Hoffmann #define FTDI_MARK (0x3 << 8) 72f1ae32a1SGerd Hoffmann #define FTDI_SPACE (0x4 << 8) 73f1ae32a1SGerd Hoffmann 74f1ae32a1SGerd Hoffmann #define FTDI_STOP (0x3 << 11) 75f1ae32a1SGerd Hoffmann #define FTDI_STOP1 (0x0 << 11) 76f1ae32a1SGerd Hoffmann #define FTDI_STOP15 (0x1 << 11) 77f1ae32a1SGerd Hoffmann #define FTDI_STOP2 (0x2 << 11) 78f1ae32a1SGerd Hoffmann 79f1ae32a1SGerd Hoffmann /* GET_MDM_ST */ 80f1ae32a1SGerd Hoffmann /* TODO: should be sent every 40ms */ 81f1ae32a1SGerd Hoffmann #define FTDI_CTS (1<<4) // CTS line status 82f1ae32a1SGerd Hoffmann #define FTDI_DSR (1<<5) // DSR line status 83f1ae32a1SGerd Hoffmann #define FTDI_RI (1<<6) // RI line status 84f1ae32a1SGerd Hoffmann #define FTDI_RLSD (1<<7) // Receive Line Signal Detect 85f1ae32a1SGerd Hoffmann 86f1ae32a1SGerd Hoffmann /* Status */ 87f1ae32a1SGerd Hoffmann 88f1ae32a1SGerd Hoffmann #define FTDI_DR (1<<0) // Data Ready 89f1ae32a1SGerd Hoffmann #define FTDI_OE (1<<1) // Overrun Err 90f1ae32a1SGerd Hoffmann #define FTDI_PE (1<<2) // Parity Err 91f1ae32a1SGerd Hoffmann #define FTDI_FE (1<<3) // Framing Err 92f1ae32a1SGerd Hoffmann #define FTDI_BI (1<<4) // Break Interrupt 93f1ae32a1SGerd Hoffmann #define FTDI_THRE (1<<5) // Transmitter Holding Register 94f1ae32a1SGerd Hoffmann #define FTDI_TEMT (1<<6) // Transmitter Empty 95f1ae32a1SGerd Hoffmann #define FTDI_FIFO (1<<7) // Error in FIFO 96f1ae32a1SGerd Hoffmann 97f1ae32a1SGerd Hoffmann typedef struct { 98f1ae32a1SGerd Hoffmann USBDevice dev; 99f1ae32a1SGerd Hoffmann uint8_t recv_buf[RECV_BUF]; 100f1ae32a1SGerd Hoffmann uint16_t recv_ptr; 101f1ae32a1SGerd Hoffmann uint16_t recv_used; 102f1ae32a1SGerd Hoffmann uint8_t event_chr; 103f1ae32a1SGerd Hoffmann uint8_t error_chr; 104f1ae32a1SGerd Hoffmann uint8_t event_trigger; 105f1ae32a1SGerd Hoffmann QEMUSerialSetParams params; 106f1ae32a1SGerd Hoffmann int latency; /* ms */ 107becdfa00SMarc-André Lureau CharBackend cs; 108f1ae32a1SGerd Hoffmann } USBSerialState; 109f1ae32a1SGerd Hoffmann 110cdf0d769SGonglei #define TYPE_USB_SERIAL "usb-serial-dev" 111cdf0d769SGonglei #define USB_SERIAL_DEV(obj) OBJECT_CHECK(USBSerialState, (obj), TYPE_USB_SERIAL) 112cdf0d769SGonglei 113f1ae32a1SGerd Hoffmann enum { 114f1ae32a1SGerd Hoffmann STR_MANUFACTURER = 1, 115f1ae32a1SGerd Hoffmann STR_PRODUCT_SERIAL, 116f1ae32a1SGerd Hoffmann STR_PRODUCT_BRAILLE, 117f1ae32a1SGerd Hoffmann STR_SERIALNUMBER, 118f1ae32a1SGerd Hoffmann }; 119f1ae32a1SGerd Hoffmann 120f1ae32a1SGerd Hoffmann static const USBDescStrings desc_strings = { 12193bfef4cSCrístian Viana [STR_MANUFACTURER] = "QEMU", 122f1ae32a1SGerd Hoffmann [STR_PRODUCT_SERIAL] = "QEMU USB SERIAL", 1232964cd9bSSamuel Thibault [STR_PRODUCT_BRAILLE] = "QEMU USB BAUM BRAILLE", 124f1ae32a1SGerd Hoffmann [STR_SERIALNUMBER] = "1", 125f1ae32a1SGerd Hoffmann }; 126f1ae32a1SGerd Hoffmann 127f1ae32a1SGerd Hoffmann static const USBDescIface desc_iface0 = { 128f1ae32a1SGerd Hoffmann .bInterfaceNumber = 0, 129f1ae32a1SGerd Hoffmann .bNumEndpoints = 2, 130f1ae32a1SGerd Hoffmann .bInterfaceClass = 0xff, 131f1ae32a1SGerd Hoffmann .bInterfaceSubClass = 0xff, 132f1ae32a1SGerd Hoffmann .bInterfaceProtocol = 0xff, 133f1ae32a1SGerd Hoffmann .eps = (USBDescEndpoint[]) { 134f1ae32a1SGerd Hoffmann { 135f1ae32a1SGerd Hoffmann .bEndpointAddress = USB_DIR_IN | 0x01, 136f1ae32a1SGerd Hoffmann .bmAttributes = USB_ENDPOINT_XFER_BULK, 137f1ae32a1SGerd Hoffmann .wMaxPacketSize = 64, 138f1ae32a1SGerd Hoffmann },{ 139f1ae32a1SGerd Hoffmann .bEndpointAddress = USB_DIR_OUT | 0x02, 140f1ae32a1SGerd Hoffmann .bmAttributes = USB_ENDPOINT_XFER_BULK, 141f1ae32a1SGerd Hoffmann .wMaxPacketSize = 64, 142f1ae32a1SGerd Hoffmann }, 143f1ae32a1SGerd Hoffmann } 144f1ae32a1SGerd Hoffmann }; 145f1ae32a1SGerd Hoffmann 146f1ae32a1SGerd Hoffmann static const USBDescDevice desc_device = { 147f1ae32a1SGerd Hoffmann .bcdUSB = 0x0200, 148f1ae32a1SGerd Hoffmann .bMaxPacketSize0 = 8, 149f1ae32a1SGerd Hoffmann .bNumConfigurations = 1, 150f1ae32a1SGerd Hoffmann .confs = (USBDescConfig[]) { 151f1ae32a1SGerd Hoffmann { 152f1ae32a1SGerd Hoffmann .bNumInterfaces = 1, 153f1ae32a1SGerd Hoffmann .bConfigurationValue = 1, 154bd93976aSPantelis Koukousoulas .bmAttributes = USB_CFG_ATT_ONE, 155f1ae32a1SGerd Hoffmann .bMaxPower = 50, 156f1ae32a1SGerd Hoffmann .nif = 1, 157f1ae32a1SGerd Hoffmann .ifs = &desc_iface0, 158f1ae32a1SGerd Hoffmann }, 159f1ae32a1SGerd Hoffmann }, 160f1ae32a1SGerd Hoffmann }; 161f1ae32a1SGerd Hoffmann 162f1ae32a1SGerd Hoffmann static const USBDesc desc_serial = { 163f1ae32a1SGerd Hoffmann .id = { 164f1ae32a1SGerd Hoffmann .idVendor = 0x0403, 165f1ae32a1SGerd Hoffmann .idProduct = 0x6001, 166f1ae32a1SGerd Hoffmann .bcdDevice = 0x0400, 167f1ae32a1SGerd Hoffmann .iManufacturer = STR_MANUFACTURER, 168f1ae32a1SGerd Hoffmann .iProduct = STR_PRODUCT_SERIAL, 169f1ae32a1SGerd Hoffmann .iSerialNumber = STR_SERIALNUMBER, 170f1ae32a1SGerd Hoffmann }, 171f1ae32a1SGerd Hoffmann .full = &desc_device, 172f1ae32a1SGerd Hoffmann .str = desc_strings, 173f1ae32a1SGerd Hoffmann }; 174f1ae32a1SGerd Hoffmann 175f1ae32a1SGerd Hoffmann static const USBDesc desc_braille = { 176f1ae32a1SGerd Hoffmann .id = { 177f1ae32a1SGerd Hoffmann .idVendor = 0x0403, 178f1ae32a1SGerd Hoffmann .idProduct = 0xfe72, 179f1ae32a1SGerd Hoffmann .bcdDevice = 0x0400, 180f1ae32a1SGerd Hoffmann .iManufacturer = STR_MANUFACTURER, 181f1ae32a1SGerd Hoffmann .iProduct = STR_PRODUCT_BRAILLE, 182f1ae32a1SGerd Hoffmann .iSerialNumber = STR_SERIALNUMBER, 183f1ae32a1SGerd Hoffmann }, 184f1ae32a1SGerd Hoffmann .full = &desc_device, 185f1ae32a1SGerd Hoffmann .str = desc_strings, 186f1ae32a1SGerd Hoffmann }; 187f1ae32a1SGerd Hoffmann 188f1ae32a1SGerd Hoffmann static void usb_serial_reset(USBSerialState *s) 189f1ae32a1SGerd Hoffmann { 190f1ae32a1SGerd Hoffmann /* TODO: Set flow control to none */ 191f1ae32a1SGerd Hoffmann s->event_chr = 0x0d; 192f1ae32a1SGerd Hoffmann s->event_trigger = 0; 193f1ae32a1SGerd Hoffmann s->recv_ptr = 0; 194f1ae32a1SGerd Hoffmann s->recv_used = 0; 195f1ae32a1SGerd Hoffmann /* TODO: purge in char driver */ 196f1ae32a1SGerd Hoffmann } 197f1ae32a1SGerd Hoffmann 198f1ae32a1SGerd Hoffmann static void usb_serial_handle_reset(USBDevice *dev) 199f1ae32a1SGerd Hoffmann { 200f1ae32a1SGerd Hoffmann USBSerialState *s = (USBSerialState *)dev; 201f1ae32a1SGerd Hoffmann 202f1ae32a1SGerd Hoffmann DPRINTF("Reset\n"); 203f1ae32a1SGerd Hoffmann 204f1ae32a1SGerd Hoffmann usb_serial_reset(s); 205f1ae32a1SGerd Hoffmann /* TODO: Reset char device, send BREAK? */ 206f1ae32a1SGerd Hoffmann } 207f1ae32a1SGerd Hoffmann 208f1ae32a1SGerd Hoffmann static uint8_t usb_get_modem_lines(USBSerialState *s) 209f1ae32a1SGerd Hoffmann { 210f1ae32a1SGerd Hoffmann int flags; 211f1ae32a1SGerd Hoffmann uint8_t ret; 212f1ae32a1SGerd Hoffmann 2135345fdb4SMarc-André Lureau if (qemu_chr_fe_ioctl(&s->cs, 214becdfa00SMarc-André Lureau CHR_IOCTL_SERIAL_GET_TIOCM, &flags) == -ENOTSUP) { 215f1ae32a1SGerd Hoffmann return FTDI_CTS|FTDI_DSR|FTDI_RLSD; 216becdfa00SMarc-André Lureau } 217f1ae32a1SGerd Hoffmann 218f1ae32a1SGerd Hoffmann ret = 0; 219f1ae32a1SGerd Hoffmann if (flags & CHR_TIOCM_CTS) 220f1ae32a1SGerd Hoffmann ret |= FTDI_CTS; 221f1ae32a1SGerd Hoffmann if (flags & CHR_TIOCM_DSR) 222f1ae32a1SGerd Hoffmann ret |= FTDI_DSR; 223f1ae32a1SGerd Hoffmann if (flags & CHR_TIOCM_RI) 224f1ae32a1SGerd Hoffmann ret |= FTDI_RI; 225f1ae32a1SGerd Hoffmann if (flags & CHR_TIOCM_CAR) 226f1ae32a1SGerd Hoffmann ret |= FTDI_RLSD; 227f1ae32a1SGerd Hoffmann 228f1ae32a1SGerd Hoffmann return ret; 229f1ae32a1SGerd Hoffmann } 230f1ae32a1SGerd Hoffmann 2319a77a0f5SHans de Goede static void usb_serial_handle_control(USBDevice *dev, USBPacket *p, 232f1ae32a1SGerd Hoffmann int request, int value, int index, int length, uint8_t *data) 233f1ae32a1SGerd Hoffmann { 234f1ae32a1SGerd Hoffmann USBSerialState *s = (USBSerialState *)dev; 235f1ae32a1SGerd Hoffmann int ret; 236f1ae32a1SGerd Hoffmann 237f1ae32a1SGerd Hoffmann DPRINTF("got control %x, value %x\n",request, value); 238f1ae32a1SGerd Hoffmann ret = usb_desc_handle_control(dev, p, request, value, index, length, data); 239f1ae32a1SGerd Hoffmann if (ret >= 0) { 2409a77a0f5SHans de Goede return; 241f1ae32a1SGerd Hoffmann } 242f1ae32a1SGerd Hoffmann 243f1ae32a1SGerd Hoffmann switch (request) { 244f1ae32a1SGerd Hoffmann case EndpointOutRequest | USB_REQ_CLEAR_FEATURE: 245f1ae32a1SGerd Hoffmann break; 246f1ae32a1SGerd Hoffmann 247f1ae32a1SGerd Hoffmann /* Class specific requests. */ 248f1ae32a1SGerd Hoffmann case DeviceOutVendor | FTDI_RESET: 249f1ae32a1SGerd Hoffmann switch (value) { 250f1ae32a1SGerd Hoffmann case FTDI_RESET_SIO: 251f1ae32a1SGerd Hoffmann usb_serial_reset(s); 252f1ae32a1SGerd Hoffmann break; 253f1ae32a1SGerd Hoffmann case FTDI_RESET_RX: 254f1ae32a1SGerd Hoffmann s->recv_ptr = 0; 255f1ae32a1SGerd Hoffmann s->recv_used = 0; 256f1ae32a1SGerd Hoffmann /* TODO: purge from char device */ 257f1ae32a1SGerd Hoffmann break; 258f1ae32a1SGerd Hoffmann case FTDI_RESET_TX: 259f1ae32a1SGerd Hoffmann /* TODO: purge from char device */ 260f1ae32a1SGerd Hoffmann break; 261f1ae32a1SGerd Hoffmann } 262f1ae32a1SGerd Hoffmann break; 263f1ae32a1SGerd Hoffmann case DeviceOutVendor | FTDI_SET_MDM_CTRL: 264f1ae32a1SGerd Hoffmann { 265f1ae32a1SGerd Hoffmann static int flags; 2665345fdb4SMarc-André Lureau qemu_chr_fe_ioctl(&s->cs, CHR_IOCTL_SERIAL_GET_TIOCM, &flags); 267f1ae32a1SGerd Hoffmann if (value & FTDI_SET_RTS) { 268f1ae32a1SGerd Hoffmann if (value & FTDI_RTS) 269f1ae32a1SGerd Hoffmann flags |= CHR_TIOCM_RTS; 270f1ae32a1SGerd Hoffmann else 271f1ae32a1SGerd Hoffmann flags &= ~CHR_TIOCM_RTS; 272f1ae32a1SGerd Hoffmann } 273f1ae32a1SGerd Hoffmann if (value & FTDI_SET_DTR) { 274f1ae32a1SGerd Hoffmann if (value & FTDI_DTR) 275f1ae32a1SGerd Hoffmann flags |= CHR_TIOCM_DTR; 276f1ae32a1SGerd Hoffmann else 277f1ae32a1SGerd Hoffmann flags &= ~CHR_TIOCM_DTR; 278f1ae32a1SGerd Hoffmann } 2795345fdb4SMarc-André Lureau qemu_chr_fe_ioctl(&s->cs, CHR_IOCTL_SERIAL_SET_TIOCM, &flags); 280f1ae32a1SGerd Hoffmann break; 281f1ae32a1SGerd Hoffmann } 282f1ae32a1SGerd Hoffmann case DeviceOutVendor | FTDI_SET_FLOW_CTRL: 283f1ae32a1SGerd Hoffmann /* TODO: ioctl */ 284f1ae32a1SGerd Hoffmann break; 285f1ae32a1SGerd Hoffmann case DeviceOutVendor | FTDI_SET_BAUD: { 286f1ae32a1SGerd Hoffmann static const int subdivisors8[8] = { 0, 4, 2, 1, 3, 5, 6, 7 }; 287f1ae32a1SGerd Hoffmann int subdivisor8 = subdivisors8[((value & 0xc000) >> 14) 288f1ae32a1SGerd Hoffmann | ((index & 1) << 2)]; 289f1ae32a1SGerd Hoffmann int divisor = value & 0x3fff; 290f1ae32a1SGerd Hoffmann 291f1ae32a1SGerd Hoffmann /* chip special cases */ 292f1ae32a1SGerd Hoffmann if (divisor == 1 && subdivisor8 == 0) 293f1ae32a1SGerd Hoffmann subdivisor8 = 4; 294f1ae32a1SGerd Hoffmann if (divisor == 0 && subdivisor8 == 0) 295f1ae32a1SGerd Hoffmann divisor = 1; 296f1ae32a1SGerd Hoffmann 297f1ae32a1SGerd Hoffmann s->params.speed = (48000000 / 2) / (8 * divisor + subdivisor8); 2985345fdb4SMarc-André Lureau qemu_chr_fe_ioctl(&s->cs, CHR_IOCTL_SERIAL_SET_PARAMS, &s->params); 299f1ae32a1SGerd Hoffmann break; 300f1ae32a1SGerd Hoffmann } 301f1ae32a1SGerd Hoffmann case DeviceOutVendor | FTDI_SET_DATA: 302f1ae32a1SGerd Hoffmann switch (value & FTDI_PARITY) { 303f1ae32a1SGerd Hoffmann case 0: 304f1ae32a1SGerd Hoffmann s->params.parity = 'N'; 305f1ae32a1SGerd Hoffmann break; 306f1ae32a1SGerd Hoffmann case FTDI_ODD: 307f1ae32a1SGerd Hoffmann s->params.parity = 'O'; 308f1ae32a1SGerd Hoffmann break; 309f1ae32a1SGerd Hoffmann case FTDI_EVEN: 310f1ae32a1SGerd Hoffmann s->params.parity = 'E'; 311f1ae32a1SGerd Hoffmann break; 312f1ae32a1SGerd Hoffmann default: 313f1ae32a1SGerd Hoffmann DPRINTF("unsupported parity %d\n", value & FTDI_PARITY); 314f1ae32a1SGerd Hoffmann goto fail; 315f1ae32a1SGerd Hoffmann } 316f1ae32a1SGerd Hoffmann switch (value & FTDI_STOP) { 317f1ae32a1SGerd Hoffmann case FTDI_STOP1: 318f1ae32a1SGerd Hoffmann s->params.stop_bits = 1; 319f1ae32a1SGerd Hoffmann break; 320f1ae32a1SGerd Hoffmann case FTDI_STOP2: 321f1ae32a1SGerd Hoffmann s->params.stop_bits = 2; 322f1ae32a1SGerd Hoffmann break; 323f1ae32a1SGerd Hoffmann default: 324f1ae32a1SGerd Hoffmann DPRINTF("unsupported stop bits %d\n", value & FTDI_STOP); 325f1ae32a1SGerd Hoffmann goto fail; 326f1ae32a1SGerd Hoffmann } 3275345fdb4SMarc-André Lureau qemu_chr_fe_ioctl(&s->cs, CHR_IOCTL_SERIAL_SET_PARAMS, &s->params); 328f1ae32a1SGerd Hoffmann /* TODO: TX ON/OFF */ 329f1ae32a1SGerd Hoffmann break; 330f1ae32a1SGerd Hoffmann case DeviceInVendor | FTDI_GET_MDM_ST: 331f1ae32a1SGerd Hoffmann data[0] = usb_get_modem_lines(s) | 1; 332f1ae32a1SGerd Hoffmann data[1] = 0; 3339a77a0f5SHans de Goede p->actual_length = 2; 334f1ae32a1SGerd Hoffmann break; 335f1ae32a1SGerd Hoffmann case DeviceOutVendor | FTDI_SET_EVENT_CHR: 336f1ae32a1SGerd Hoffmann /* TODO: handle it */ 337f1ae32a1SGerd Hoffmann s->event_chr = value; 338f1ae32a1SGerd Hoffmann break; 339f1ae32a1SGerd Hoffmann case DeviceOutVendor | FTDI_SET_ERROR_CHR: 340f1ae32a1SGerd Hoffmann /* TODO: handle it */ 341f1ae32a1SGerd Hoffmann s->error_chr = value; 342f1ae32a1SGerd Hoffmann break; 343f1ae32a1SGerd Hoffmann case DeviceOutVendor | FTDI_SET_LATENCY: 344f1ae32a1SGerd Hoffmann s->latency = value; 345f1ae32a1SGerd Hoffmann break; 346f1ae32a1SGerd Hoffmann case DeviceInVendor | FTDI_GET_LATENCY: 347f1ae32a1SGerd Hoffmann data[0] = s->latency; 3489a77a0f5SHans de Goede p->actual_length = 1; 349f1ae32a1SGerd Hoffmann break; 350f1ae32a1SGerd Hoffmann default: 351f1ae32a1SGerd Hoffmann fail: 352f1ae32a1SGerd Hoffmann DPRINTF("got unsupported/bogus control %x, value %x\n", request, value); 3539a77a0f5SHans de Goede p->status = USB_RET_STALL; 354f1ae32a1SGerd Hoffmann break; 355f1ae32a1SGerd Hoffmann } 356f1ae32a1SGerd Hoffmann } 357f1ae32a1SGerd Hoffmann 3589a77a0f5SHans de Goede static void usb_serial_handle_data(USBDevice *dev, USBPacket *p) 359f1ae32a1SGerd Hoffmann { 360f1ae32a1SGerd Hoffmann USBSerialState *s = (USBSerialState *)dev; 361f1ae32a1SGerd Hoffmann uint8_t devep = p->ep->nr; 362f1ae32a1SGerd Hoffmann struct iovec *iov; 363f1ae32a1SGerd Hoffmann uint8_t header[2]; 3649a77a0f5SHans de Goede int i, first_len, len; 365f1ae32a1SGerd Hoffmann 366f1ae32a1SGerd Hoffmann switch (p->pid) { 367f1ae32a1SGerd Hoffmann case USB_TOKEN_OUT: 368f1ae32a1SGerd Hoffmann if (devep != 2) 369f1ae32a1SGerd Hoffmann goto fail; 370f1ae32a1SGerd Hoffmann for (i = 0; i < p->iov.niov; i++) { 371f1ae32a1SGerd Hoffmann iov = p->iov.iov + i; 3726ab3fc32SDaniel P. Berrange /* XXX this blocks entire thread. Rewrite to use 3736ab3fc32SDaniel P. Berrange * qemu_chr_fe_write and background I/O callbacks */ 3745345fdb4SMarc-André Lureau qemu_chr_fe_write_all(&s->cs, iov->iov_base, iov->iov_len); 375f1ae32a1SGerd Hoffmann } 3769a77a0f5SHans de Goede p->actual_length = p->iov.size; 377f1ae32a1SGerd Hoffmann break; 378f1ae32a1SGerd Hoffmann 379f1ae32a1SGerd Hoffmann case USB_TOKEN_IN: 380f1ae32a1SGerd Hoffmann if (devep != 1) 381f1ae32a1SGerd Hoffmann goto fail; 382f1ae32a1SGerd Hoffmann first_len = RECV_BUF - s->recv_ptr; 383f1ae32a1SGerd Hoffmann len = p->iov.size; 384f1ae32a1SGerd Hoffmann if (len <= 2) { 3859a77a0f5SHans de Goede p->status = USB_RET_NAK; 386f1ae32a1SGerd Hoffmann break; 387f1ae32a1SGerd Hoffmann } 388f1ae32a1SGerd Hoffmann header[0] = usb_get_modem_lines(s) | 1; 389f1ae32a1SGerd Hoffmann /* We do not have the uart details */ 390f1ae32a1SGerd Hoffmann /* handle serial break */ 391f1ae32a1SGerd Hoffmann if (s->event_trigger && s->event_trigger & FTDI_BI) { 392f1ae32a1SGerd Hoffmann s->event_trigger &= ~FTDI_BI; 393f1ae32a1SGerd Hoffmann header[1] = FTDI_BI; 394f1ae32a1SGerd Hoffmann usb_packet_copy(p, header, 2); 395f1ae32a1SGerd Hoffmann break; 396f1ae32a1SGerd Hoffmann } else { 397f1ae32a1SGerd Hoffmann header[1] = 0; 398f1ae32a1SGerd Hoffmann } 399f1ae32a1SGerd Hoffmann len -= 2; 400f1ae32a1SGerd Hoffmann if (len > s->recv_used) 401f1ae32a1SGerd Hoffmann len = s->recv_used; 402f1ae32a1SGerd Hoffmann if (!len) { 4039a77a0f5SHans de Goede p->status = USB_RET_NAK; 404f1ae32a1SGerd Hoffmann break; 405f1ae32a1SGerd Hoffmann } 406f1ae32a1SGerd Hoffmann if (first_len > len) 407f1ae32a1SGerd Hoffmann first_len = len; 408f1ae32a1SGerd Hoffmann usb_packet_copy(p, header, 2); 409f1ae32a1SGerd Hoffmann usb_packet_copy(p, s->recv_buf + s->recv_ptr, first_len); 410f1ae32a1SGerd Hoffmann if (len > first_len) 411f1ae32a1SGerd Hoffmann usb_packet_copy(p, s->recv_buf, len - first_len); 412f1ae32a1SGerd Hoffmann s->recv_used -= len; 413f1ae32a1SGerd Hoffmann s->recv_ptr = (s->recv_ptr + len) % RECV_BUF; 414f1ae32a1SGerd Hoffmann break; 415f1ae32a1SGerd Hoffmann 416f1ae32a1SGerd Hoffmann default: 417f1ae32a1SGerd Hoffmann DPRINTF("Bad token\n"); 418f1ae32a1SGerd Hoffmann fail: 4199a77a0f5SHans de Goede p->status = USB_RET_STALL; 420f1ae32a1SGerd Hoffmann break; 421f1ae32a1SGerd Hoffmann } 422f1ae32a1SGerd Hoffmann } 423f1ae32a1SGerd Hoffmann 424f1ae32a1SGerd Hoffmann static int usb_serial_can_read(void *opaque) 425f1ae32a1SGerd Hoffmann { 426f1ae32a1SGerd Hoffmann USBSerialState *s = opaque; 427da124e62SGerd Hoffmann 428da124e62SGerd Hoffmann if (!s->dev.attached) { 429da124e62SGerd Hoffmann return 0; 430da124e62SGerd Hoffmann } 431f1ae32a1SGerd Hoffmann return RECV_BUF - s->recv_used; 432f1ae32a1SGerd Hoffmann } 433f1ae32a1SGerd Hoffmann 434f1ae32a1SGerd Hoffmann static void usb_serial_read(void *opaque, const uint8_t *buf, int size) 435f1ae32a1SGerd Hoffmann { 436f1ae32a1SGerd Hoffmann USBSerialState *s = opaque; 437f1ae32a1SGerd Hoffmann int first_size, start; 438f1ae32a1SGerd Hoffmann 439f1ae32a1SGerd Hoffmann /* room in the buffer? */ 440f1ae32a1SGerd Hoffmann if (size > (RECV_BUF - s->recv_used)) 441f1ae32a1SGerd Hoffmann size = RECV_BUF - s->recv_used; 442f1ae32a1SGerd Hoffmann 443f1ae32a1SGerd Hoffmann start = s->recv_ptr + s->recv_used; 444f1ae32a1SGerd Hoffmann if (start < RECV_BUF) { 445f1ae32a1SGerd Hoffmann /* copy data to end of buffer */ 446f1ae32a1SGerd Hoffmann first_size = RECV_BUF - start; 447f1ae32a1SGerd Hoffmann if (first_size > size) 448f1ae32a1SGerd Hoffmann first_size = size; 449f1ae32a1SGerd Hoffmann 450f1ae32a1SGerd Hoffmann memcpy(s->recv_buf + start, buf, first_size); 451f1ae32a1SGerd Hoffmann 452f1ae32a1SGerd Hoffmann /* wrap around to front if needed */ 453f1ae32a1SGerd Hoffmann if (size > first_size) 454f1ae32a1SGerd Hoffmann memcpy(s->recv_buf, buf + first_size, size - first_size); 455f1ae32a1SGerd Hoffmann } else { 456f1ae32a1SGerd Hoffmann start -= RECV_BUF; 457f1ae32a1SGerd Hoffmann memcpy(s->recv_buf + start, buf, size); 458f1ae32a1SGerd Hoffmann } 459f1ae32a1SGerd Hoffmann s->recv_used += size; 460f1ae32a1SGerd Hoffmann } 461f1ae32a1SGerd Hoffmann 462f1ae32a1SGerd Hoffmann static void usb_serial_event(void *opaque, int event) 463f1ae32a1SGerd Hoffmann { 464f1ae32a1SGerd Hoffmann USBSerialState *s = opaque; 465f1ae32a1SGerd Hoffmann 466f1ae32a1SGerd Hoffmann switch (event) { 467f1ae32a1SGerd Hoffmann case CHR_EVENT_BREAK: 468f1ae32a1SGerd Hoffmann s->event_trigger |= FTDI_BI; 469f1ae32a1SGerd Hoffmann break; 470f1ae32a1SGerd Hoffmann case CHR_EVENT_OPENED: 471da124e62SGerd Hoffmann if (!s->dev.attached) { 4727334d650SGonglei usb_device_attach(&s->dev, &error_abort); 473da124e62SGerd Hoffmann } 474da124e62SGerd Hoffmann break; 475da124e62SGerd Hoffmann case CHR_EVENT_CLOSED: 476da124e62SGerd Hoffmann if (s->dev.attached) { 477da124e62SGerd Hoffmann usb_device_detach(&s->dev); 478da124e62SGerd Hoffmann } 479f1ae32a1SGerd Hoffmann break; 480f1ae32a1SGerd Hoffmann } 481f1ae32a1SGerd Hoffmann } 482f1ae32a1SGerd Hoffmann 48338fff2c9SGonglei static void usb_serial_realize(USBDevice *dev, Error **errp) 484f1ae32a1SGerd Hoffmann { 485cdf0d769SGonglei USBSerialState *s = USB_SERIAL_DEV(dev); 4867334d650SGonglei Error *local_err = NULL; 4870ec7b3e7SMarc-André Lureau Chardev *chr = qemu_chr_fe_get_driver(&s->cs); 488f1ae32a1SGerd Hoffmann 4899d55d1adSGerd Hoffmann usb_desc_create_serial(dev); 490f1ae32a1SGerd Hoffmann usb_desc_init(dev); 491da124e62SGerd Hoffmann dev->auto_attach = 0; 492f1ae32a1SGerd Hoffmann 4935345fdb4SMarc-André Lureau if (!chr) { 49438fff2c9SGonglei error_setg(errp, "Property chardev is required"); 49538fff2c9SGonglei return; 496f1ae32a1SGerd Hoffmann } 497f1ae32a1SGerd Hoffmann 4987334d650SGonglei usb_check_attach(dev, &local_err); 4997334d650SGonglei if (local_err) { 5007334d650SGonglei error_propagate(errp, local_err); 5017334d650SGonglei return; 5027334d650SGonglei } 5037334d650SGonglei 5045345fdb4SMarc-André Lureau qemu_chr_fe_set_handlers(&s->cs, usb_serial_can_read, usb_serial_read, 505*81517ba3SAnton Nefedov usb_serial_event, NULL, s, NULL, true); 506f1ae32a1SGerd Hoffmann usb_serial_handle_reset(dev); 507da124e62SGerd Hoffmann 5085345fdb4SMarc-André Lureau if (chr->be_open && !dev->attached) { 5097334d650SGonglei usb_device_attach(dev, &error_abort); 5107d553f27SGonglei } 511da124e62SGerd Hoffmann } 512f1ae32a1SGerd Hoffmann 513f1ae32a1SGerd Hoffmann static USBDevice *usb_serial_init(USBBus *bus, const char *filename) 514f1ae32a1SGerd Hoffmann { 515f1ae32a1SGerd Hoffmann USBDevice *dev; 5160ec7b3e7SMarc-André Lureau Chardev *cdrv; 517f1ae32a1SGerd Hoffmann char label[32]; 518f1ae32a1SGerd Hoffmann static int index; 519f1ae32a1SGerd Hoffmann 520e14935dfSThomas Huth if (*filename == ':') { 521e14935dfSThomas Huth filename++; 522e14935dfSThomas Huth } else if (*filename) { 523f1ae32a1SGerd Hoffmann error_report("unrecognized serial USB option %s", filename); 524f1ae32a1SGerd Hoffmann return NULL; 525f1ae32a1SGerd Hoffmann } 526f1ae32a1SGerd Hoffmann if (!*filename) { 527f1ae32a1SGerd Hoffmann error_report("character device specification needed"); 528f1ae32a1SGerd Hoffmann return NULL; 529f1ae32a1SGerd Hoffmann } 530f1ae32a1SGerd Hoffmann 531f1ae32a1SGerd Hoffmann snprintf(label, sizeof(label), "usbserial%d", index++); 532b4948be9SMarc-André Lureau cdrv = qemu_chr_new(label, filename); 533f1ae32a1SGerd Hoffmann if (!cdrv) 534f1ae32a1SGerd Hoffmann return NULL; 535f1ae32a1SGerd Hoffmann 536f1ae32a1SGerd Hoffmann dev = usb_create(bus, "usb-serial"); 537f1ae32a1SGerd Hoffmann qdev_prop_set_chr(&dev->qdev, "chardev", cdrv); 538aa612b36SThomas Huth 539f1ae32a1SGerd Hoffmann return dev; 540f1ae32a1SGerd Hoffmann } 541f1ae32a1SGerd Hoffmann 542f1ae32a1SGerd Hoffmann static USBDevice *usb_braille_init(USBBus *bus, const char *unused) 543f1ae32a1SGerd Hoffmann { 544f1ae32a1SGerd Hoffmann USBDevice *dev; 5450ec7b3e7SMarc-André Lureau Chardev *cdrv; 546f1ae32a1SGerd Hoffmann 547b4948be9SMarc-André Lureau cdrv = qemu_chr_new("braille", "braille"); 548f1ae32a1SGerd Hoffmann if (!cdrv) 549f1ae32a1SGerd Hoffmann return NULL; 550f1ae32a1SGerd Hoffmann 551f1ae32a1SGerd Hoffmann dev = usb_create(bus, "usb-braille"); 552f1ae32a1SGerd Hoffmann qdev_prop_set_chr(&dev->qdev, "chardev", cdrv); 553f1ae32a1SGerd Hoffmann return dev; 554f1ae32a1SGerd Hoffmann } 555f1ae32a1SGerd Hoffmann 556f1ae32a1SGerd Hoffmann static const VMStateDescription vmstate_usb_serial = { 557f1ae32a1SGerd Hoffmann .name = "usb-serial", 558f1ae32a1SGerd Hoffmann .unmigratable = 1, 559f1ae32a1SGerd Hoffmann }; 560f1ae32a1SGerd Hoffmann 561f1ae32a1SGerd Hoffmann static Property serial_properties[] = { 562f1ae32a1SGerd Hoffmann DEFINE_PROP_CHR("chardev", USBSerialState, cs), 563f1ae32a1SGerd Hoffmann DEFINE_PROP_END_OF_LIST(), 564f1ae32a1SGerd Hoffmann }; 565f1ae32a1SGerd Hoffmann 566cdf0d769SGonglei static void usb_serial_dev_class_init(ObjectClass *klass, void *data) 567f1ae32a1SGerd Hoffmann { 568f1ae32a1SGerd Hoffmann DeviceClass *dc = DEVICE_CLASS(klass); 569f1ae32a1SGerd Hoffmann USBDeviceClass *uc = USB_DEVICE_CLASS(klass); 570f1ae32a1SGerd Hoffmann 57138fff2c9SGonglei uc->realize = usb_serial_realize; 572f1ae32a1SGerd Hoffmann uc->handle_reset = usb_serial_handle_reset; 573f1ae32a1SGerd Hoffmann uc->handle_control = usb_serial_handle_control; 574f1ae32a1SGerd Hoffmann uc->handle_data = usb_serial_handle_data; 575f1ae32a1SGerd Hoffmann dc->vmsd = &vmstate_usb_serial; 576125ee0edSMarcel Apfelbaum set_bit(DEVICE_CATEGORY_INPUT, dc->categories); 577f1ae32a1SGerd Hoffmann } 578f1ae32a1SGerd Hoffmann 579cdf0d769SGonglei static const TypeInfo usb_serial_dev_type_info = { 580cdf0d769SGonglei .name = TYPE_USB_SERIAL, 581cdf0d769SGonglei .parent = TYPE_USB_DEVICE, 582cdf0d769SGonglei .instance_size = sizeof(USBSerialState), 583cdf0d769SGonglei .abstract = true, 584cdf0d769SGonglei .class_init = usb_serial_dev_class_init, 585cdf0d769SGonglei }; 586cdf0d769SGonglei 587cdf0d769SGonglei static void usb_serial_class_initfn(ObjectClass *klass, void *data) 588cdf0d769SGonglei { 589cdf0d769SGonglei DeviceClass *dc = DEVICE_CLASS(klass); 590cdf0d769SGonglei USBDeviceClass *uc = USB_DEVICE_CLASS(klass); 591cdf0d769SGonglei 592cdf0d769SGonglei uc->product_desc = "QEMU USB Serial"; 593cdf0d769SGonglei uc->usb_desc = &desc_serial; 594cdf0d769SGonglei dc->props = serial_properties; 595cdf0d769SGonglei } 596cdf0d769SGonglei 5978c43a6f0SAndreas Färber static const TypeInfo serial_info = { 598f1ae32a1SGerd Hoffmann .name = "usb-serial", 599cdf0d769SGonglei .parent = TYPE_USB_SERIAL, 600f1ae32a1SGerd Hoffmann .class_init = usb_serial_class_initfn, 601f1ae32a1SGerd Hoffmann }; 602f1ae32a1SGerd Hoffmann 603f1ae32a1SGerd Hoffmann static Property braille_properties[] = { 604f1ae32a1SGerd Hoffmann DEFINE_PROP_CHR("chardev", USBSerialState, cs), 605f1ae32a1SGerd Hoffmann DEFINE_PROP_END_OF_LIST(), 606f1ae32a1SGerd Hoffmann }; 607f1ae32a1SGerd Hoffmann 608f1ae32a1SGerd Hoffmann static void usb_braille_class_initfn(ObjectClass *klass, void *data) 609f1ae32a1SGerd Hoffmann { 610f1ae32a1SGerd Hoffmann DeviceClass *dc = DEVICE_CLASS(klass); 611f1ae32a1SGerd Hoffmann USBDeviceClass *uc = USB_DEVICE_CLASS(klass); 612f1ae32a1SGerd Hoffmann 613f1ae32a1SGerd Hoffmann uc->product_desc = "QEMU USB Braille"; 614f1ae32a1SGerd Hoffmann uc->usb_desc = &desc_braille; 615f1ae32a1SGerd Hoffmann dc->props = braille_properties; 616f1ae32a1SGerd Hoffmann } 617f1ae32a1SGerd Hoffmann 6188c43a6f0SAndreas Färber static const TypeInfo braille_info = { 619f1ae32a1SGerd Hoffmann .name = "usb-braille", 620cdf0d769SGonglei .parent = TYPE_USB_SERIAL, 621f1ae32a1SGerd Hoffmann .class_init = usb_braille_class_initfn, 622f1ae32a1SGerd Hoffmann }; 623f1ae32a1SGerd Hoffmann 624f1ae32a1SGerd Hoffmann static void usb_serial_register_types(void) 625f1ae32a1SGerd Hoffmann { 626cdf0d769SGonglei type_register_static(&usb_serial_dev_type_info); 627f1ae32a1SGerd Hoffmann type_register_static(&serial_info); 628f1ae32a1SGerd Hoffmann usb_legacy_register("usb-serial", "serial", usb_serial_init); 629f1ae32a1SGerd Hoffmann type_register_static(&braille_info); 630f1ae32a1SGerd Hoffmann usb_legacy_register("usb-braille", "braille", usb_braille_init); 631f1ae32a1SGerd Hoffmann } 632f1ae32a1SGerd Hoffmann 633f1ae32a1SGerd Hoffmann type_init(usb_serial_register_types) 634