Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 1 | /* |
| 2 | * usb_e1.c |
| 3 | * |
| 4 | * Copyright (C) 2019-2020 Sylvain Munaut <tnt@246tNt.com> |
| 5 | * SPDX-License-Identifier: GPL-3.0-or-later |
| 6 | */ |
| 7 | |
| 8 | #include <stdint.h> |
| 9 | #include <stdbool.h> |
| 10 | #include <string.h> |
| 11 | |
| 12 | #include <no2usb/usb_hw.h> |
| 13 | #include <no2usb/usb_priv.h> |
| 14 | |
| 15 | #include "console.h" |
| 16 | #include "misc.h" |
Harald Welte | 2df1f80 | 2020-12-14 17:46:53 +0100 | [diff] [blame] | 17 | #include "e1.h" |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 18 | #include "e1_hw.h" |
| 19 | |
| 20 | #include "ice1usb_proto.h" |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 21 | |
| 22 | struct { |
Harald Welte | 30fc560 | 2020-12-14 15:56:28 +0100 | [diff] [blame] | 23 | bool running; /* are we running (transceiving USB data)? */ |
| 24 | int out_bdi; /* buffer descriptor index for OUT EP */ |
| 25 | int in_bdi; /* buffer descriptor index for IN EP */ |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 26 | struct ice1usb_tx_config tx_cfg; |
| 27 | struct ice1usb_rx_config rx_cfg; |
Harald Welte | 805f2cf | 2020-12-14 17:31:03 +0100 | [diff] [blame] | 28 | struct e1_error_count last_err; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 29 | } g_usb_e1; |
| 30 | |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 31 | /* default configuration at power-up */ |
| 32 | static const struct ice1usb_tx_config tx_cfg_default = { |
| 33 | .mode = ICE1USB_TX_MODE_TS0_CRC4_E, |
| 34 | .timing = ICE1USB_TX_TIME_SRC_LOCAL, |
| 35 | .ext_loopback = ICE1USB_TX_EXT_LOOPBACK_OFF, |
| 36 | .alarm = 0, |
| 37 | }; |
| 38 | |
| 39 | static const struct ice1usb_rx_config rx_cfg_default = { |
| 40 | .mode = ICE1USB_RX_MODE_MULTIFRAME, |
| 41 | }; |
| 42 | |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 43 | |
| 44 | /* Hack */ |
Harald Welte | daff4f6 | 2020-12-14 17:39:23 +0100 | [diff] [blame] | 45 | unsigned int e1_rx_need_data(unsigned int usb_addr, unsigned int max_len, unsigned int *pos); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 46 | unsigned int e1_tx_feed_data(unsigned int usb_addr, unsigned int len); |
| 47 | unsigned int e1_tx_level(void); |
| 48 | unsigned int e1_rx_level(void); |
| 49 | /* ---- */ |
| 50 | |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 51 | static void |
| 52 | _usb_fill_feedback_ep(void) |
| 53 | { |
| 54 | static uint16_t ticks_prev = 0; |
| 55 | uint16_t ticks; |
| 56 | uint32_t val = 8192; |
| 57 | unsigned int level; |
| 58 | |
Harald Welte | 2b7dadf | 2020-12-14 15:56:15 +0100 | [diff] [blame] | 59 | /* Compute real E1 tick count (with safety against bad values) */ |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 60 | ticks = e1_tick_read(); |
| 61 | val = (ticks - ticks_prev) & 0xffff; |
| 62 | ticks_prev = ticks; |
| 63 | if ((val < 7168) | (val > 9216)) |
| 64 | val = 8192; |
| 65 | |
| 66 | /* Bias depending on TX fifo level */ |
| 67 | level = e1_tx_level(); |
| 68 | if (level < (3 * 16)) |
| 69 | val += 256; |
| 70 | else if (level > (8 * 16)) |
| 71 | val -= 256; |
| 72 | |
| 73 | /* Prepare buffer */ |
| 74 | usb_data_write(64, &val, 4); |
| 75 | usb_ep_regs[1].in.bd[0].ptr = 64; |
| 76 | usb_ep_regs[1].in.bd[0].csr = USB_BD_STATE_RDY_DATA | USB_BD_LEN(3); |
| 77 | } |
| 78 | |
| 79 | |
| 80 | void |
| 81 | usb_e1_run(void) |
| 82 | { |
| 83 | int bdi; |
| 84 | |
| 85 | if (!g_usb_e1.running) |
| 86 | return; |
| 87 | |
Harald Welte | 805f2cf | 2020-12-14 17:31:03 +0100 | [diff] [blame] | 88 | /* EP3 IRQ */ |
| 89 | if ((usb_ep_regs[3].in.bd[0].csr & USB_BD_STATE_MSK) != USB_BD_STATE_RDY_DATA) { |
| 90 | const struct e1_error_count *cur_err = e1_get_error_count(); |
| 91 | if (memcmp(cur_err, &g_usb_e1.last_err, sizeof(*cur_err))) { |
| 92 | struct ice1usb_irq errmsg = { |
| 93 | .type = ICE1USB_IRQ_T_ERRCNT, |
| 94 | .u = { |
| 95 | .errors = { |
| 96 | .crc = cur_err->crc, |
| 97 | .align = cur_err->align, |
| 98 | .ovfl = cur_err->ovfl, |
| 99 | .unfl = cur_err->unfl, |
| 100 | .flags = cur_err->flags, |
| 101 | } |
| 102 | } |
| 103 | }; |
| 104 | printf("E"); |
| 105 | usb_data_write(usb_ep_regs[3].in.bd[0].ptr, &errmsg, sizeof(errmsg)); |
| 106 | usb_ep_regs[3].in.bd[0].csr = USB_BD_STATE_RDY_DATA | USB_BD_LEN(sizeof(errmsg)); |
| 107 | g_usb_e1.last_err = *cur_err; |
| 108 | } |
| 109 | } |
| 110 | |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 111 | /* EP2 IN */ |
| 112 | bdi = g_usb_e1.in_bdi; |
| 113 | |
| 114 | while ((usb_ep_regs[2].in.bd[bdi].csr & USB_BD_STATE_MSK) != USB_BD_STATE_RDY_DATA) |
| 115 | { |
| 116 | uint32_t ptr = usb_ep_regs[2].in.bd[bdi].ptr; |
| 117 | uint32_t hdr; |
Harald Welte | 2df1f80 | 2020-12-14 17:46:53 +0100 | [diff] [blame] | 118 | unsigned int pos; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 119 | |
| 120 | /* Error check */ |
| 121 | if ((usb_ep_regs[2].in.bd[bdi].csr & USB_BD_STATE_MSK) == USB_BD_STATE_DONE_ERR) |
| 122 | puts("Err EP2 IN\n"); |
| 123 | |
| 124 | /* Get some data from E1 */ |
| 125 | int n = e1_rx_level(); |
| 126 | |
| 127 | if (n > 64) |
| 128 | n = 12; |
| 129 | else if (n > 32) |
| 130 | n = 10; |
| 131 | else if (n > 8) |
| 132 | n = 8; |
| 133 | else if (!n) |
| 134 | break; |
| 135 | |
Harald Welte | 2df1f80 | 2020-12-14 17:46:53 +0100 | [diff] [blame] | 136 | n = e1_rx_need_data((ptr >> 2) + 1, n, &pos); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 137 | |
Harald Welte | 2df1f80 | 2020-12-14 17:46:53 +0100 | [diff] [blame] | 138 | /* Write header: currently version and pos (mfr/fr number) */ |
| 139 | hdr = (0 << 28) | (pos & 0xff); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 140 | usb_data_write(ptr, &hdr, 4); |
| 141 | |
| 142 | /* Resubmit */ |
| 143 | usb_ep_regs[2].in.bd[bdi].csr = USB_BD_STATE_RDY_DATA | USB_BD_LEN((n * 32) + 4); |
| 144 | |
| 145 | /* Next BDI */ |
| 146 | bdi ^= 1; |
| 147 | g_usb_e1.in_bdi = bdi; |
| 148 | } |
| 149 | |
| 150 | /* EP1 OUT */ |
| 151 | bdi = g_usb_e1.out_bdi; |
| 152 | |
| 153 | while ((usb_ep_regs[1].out.bd[bdi].csr & USB_BD_STATE_MSK) != USB_BD_STATE_RDY_DATA) |
| 154 | { |
| 155 | uint32_t ptr = usb_ep_regs[1].out.bd[bdi].ptr; |
| 156 | uint32_t csr = usb_ep_regs[1].out.bd[bdi].csr; |
| 157 | uint32_t hdr; |
| 158 | |
| 159 | /* Error check */ |
| 160 | if ((csr & USB_BD_STATE_MSK) == USB_BD_STATE_DONE_ERR) { |
| 161 | puts("Err EP1 OUT\n"); |
| 162 | goto refill; |
| 163 | } |
| 164 | |
| 165 | /* Grab header */ |
| 166 | usb_data_read(&hdr, ptr, 4); |
| 167 | |
| 168 | /* Empty data into the FIFO */ |
| 169 | int n = ((csr & USB_BD_LEN_MSK) - 4) / 32; |
| 170 | n = e1_tx_feed_data((ptr >> 2) + 1, n); |
| 171 | |
| 172 | refill: |
| 173 | /* Refill it */ |
| 174 | usb_ep_regs[1].out.bd[bdi].csr = USB_BD_STATE_RDY_DATA | USB_BD_LEN(388); |
| 175 | |
| 176 | /* Next BDI */ |
| 177 | bdi ^= 1; |
| 178 | g_usb_e1.out_bdi = bdi; |
| 179 | |
| 180 | static int x = 0; |
| 181 | if ((x++ & 0xff) == 0xff) |
| 182 | puts("."); |
| 183 | } |
| 184 | |
| 185 | /* EP1 IN */ |
| 186 | if ((usb_ep_regs[1].in.bd[0].csr & USB_BD_STATE_MSK) != USB_BD_STATE_RDY_DATA) |
| 187 | { |
| 188 | _usb_fill_feedback_ep(); |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | static const struct usb_intf_desc * |
| 193 | _find_intf(const struct usb_conf_desc *conf, uint8_t idx) |
| 194 | { |
| 195 | const struct usb_intf_desc *intf = NULL; |
| 196 | const void *sod, *eod; |
| 197 | |
| 198 | if (!conf) |
| 199 | return NULL; |
| 200 | |
| 201 | sod = conf; |
| 202 | eod = sod + conf->wTotalLength; |
| 203 | |
| 204 | while (1) { |
| 205 | sod = usb_desc_find(sod, eod, USB_DT_INTF); |
| 206 | if (!sod) |
| 207 | break; |
| 208 | |
| 209 | intf = (void*)sod; |
| 210 | if (intf->bInterfaceNumber == idx) |
| 211 | return intf; |
| 212 | |
| 213 | sod = usb_desc_next(sod); |
| 214 | } |
| 215 | |
| 216 | return NULL; |
| 217 | } |
Harald Welte | c827185 | 2020-12-14 13:48:09 +0100 | [diff] [blame] | 218 | |
| 219 | static enum usb_fnd_resp |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 220 | _e1_set_conf(const struct usb_conf_desc *conf) |
| 221 | { |
| 222 | const struct usb_intf_desc *intf; |
| 223 | |
| 224 | printf("e1 set_conf %08x\n", conf); |
| 225 | if (!conf) |
| 226 | return USB_FND_SUCCESS; |
| 227 | |
| 228 | intf = _find_intf(conf, 0); |
| 229 | if (!intf) |
| 230 | return USB_FND_ERROR; |
| 231 | |
| 232 | printf("e1 set_conf %08x\n", intf); |
| 233 | |
| 234 | usb_ep_boot(intf, 0x01, true); |
| 235 | usb_ep_boot(intf, 0x81, true); |
| 236 | usb_ep_boot(intf, 0x82, true); |
Harald Welte | 805f2cf | 2020-12-14 17:31:03 +0100 | [diff] [blame] | 237 | usb_ep_boot(intf, 0x83, true); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 238 | |
| 239 | return USB_FND_SUCCESS; |
| 240 | } |
| 241 | |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 242 | static void _perform_tx_config(void) |
| 243 | { |
| 244 | const struct ice1usb_tx_config *cfg = &g_usb_e1.tx_cfg; |
| 245 | e1_tx_config( ((cfg->mode & 3) << 1) | |
| 246 | ((cfg->timing & 1) << 3) | |
| 247 | ((cfg->alarm & 1) << 4) | |
| 248 | ((cfg->ext_loopback & 3) << 5) ); |
| 249 | } |
| 250 | |
| 251 | static void _perform_rx_config(void) |
| 252 | { |
| 253 | const struct ice1usb_rx_config *cfg = &g_usb_e1.rx_cfg; |
| 254 | e1_rx_config((cfg->mode << 1)); |
| 255 | } |
| 256 | |
Harald Welte | c827185 | 2020-12-14 13:48:09 +0100 | [diff] [blame] | 257 | static enum usb_fnd_resp |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 258 | _e1_set_intf(const struct usb_intf_desc *base, const struct usb_intf_desc *sel) |
| 259 | { |
| 260 | if (base->bInterfaceNumber != 0) |
| 261 | return USB_FND_CONTINUE; |
| 262 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 263 | switch (sel->bAlternateSetting) { |
| 264 | case 0: |
| 265 | if (!g_usb_e1.running) |
| 266 | return USB_FND_SUCCESS; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 267 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 268 | /* disable E1 rx/tx */ |
| 269 | e1_init(0, 0); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 270 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 271 | /* EP1 OUT */ |
| 272 | usb_ep_regs[1].out.bd[0].csr = 0; |
| 273 | usb_ep_regs[1].out.bd[1].csr = 0; |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 274 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 275 | /* EP1 IN (feedback) */ |
| 276 | usb_ep_regs[1].in.bd[0].csr = 0; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 277 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 278 | /* EP2 IN (data) */ |
| 279 | usb_ep_regs[2].in.bd[0].csr = 0; |
| 280 | usb_ep_regs[2].in.bd[1].csr = 0; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 281 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 282 | /* EP3 IN: Interrupt */ |
| 283 | usb_ep_regs[3].in.bd[0].csr = 0; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 284 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 285 | g_usb_e1.running = false; |
| 286 | break; |
| 287 | case 1: |
| 288 | /* Hack to avoid re-setting while running ... avoid BD desync */ |
| 289 | if (g_usb_e1.running) |
| 290 | return USB_FND_SUCCESS; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 291 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 292 | _perform_rx_config(); |
| 293 | _perform_tx_config(); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 294 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 295 | g_usb_e1.running = true; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 296 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 297 | /* Configure EP1 OUT / EP2 IN */ |
| 298 | usb_ep_regs[1].out.status = USB_EP_TYPE_ISOC | USB_EP_BD_DUAL; /* Type=Isochronous, dual buffered */ |
| 299 | usb_ep_regs[2].in.status = USB_EP_TYPE_ISOC | USB_EP_BD_DUAL; /* Type=Isochronous, dual buffered */ |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 300 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 301 | /* Configure EP1 IN (feedback) */ |
| 302 | usb_ep_regs[1].in.status = USB_EP_TYPE_ISOC; /* Type=Isochronous, single buffered */ |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 303 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 304 | /* EP2 IN: Prepare two buffers */ |
| 305 | g_usb_e1.in_bdi = 0; |
| 306 | usb_ep_regs[2].in.bd[0].ptr = 1024; |
| 307 | usb_ep_regs[2].in.bd[0].csr = 0; |
| 308 | |
| 309 | usb_ep_regs[2].in.bd[1].ptr = 1536; |
| 310 | usb_ep_regs[2].in.bd[1].csr = 0; |
| 311 | |
| 312 | /* EP1 OUT: Queue two buffers */ |
| 313 | g_usb_e1.out_bdi = 0; |
| 314 | usb_ep_regs[1].out.bd[0].ptr = 1024; |
| 315 | usb_ep_regs[1].out.bd[0].csr = USB_BD_STATE_RDY_DATA | USB_BD_LEN(388); |
| 316 | |
| 317 | usb_ep_regs[1].out.bd[1].ptr = 1536; |
| 318 | usb_ep_regs[1].out.bd[1].csr = USB_BD_STATE_RDY_DATA | USB_BD_LEN(388); |
| 319 | |
| 320 | /* EP1 IN: Queue buffer */ |
| 321 | _usb_fill_feedback_ep(); |
| 322 | |
| 323 | /* EP3 IN: Interrupt */ |
| 324 | usb_ep_regs[3].in.status = USB_EP_TYPE_INT; |
| 325 | usb_ep_regs[3].in.bd[0].ptr = 68; |
| 326 | usb_ep_regs[3].in.bd[0].csr = 0; |
| 327 | break; |
| 328 | default: |
| 329 | return USB_FND_ERROR; |
| 330 | } |
Harald Welte | 805f2cf | 2020-12-14 17:31:03 +0100 | [diff] [blame] | 331 | |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 332 | return USB_FND_SUCCESS; |
| 333 | } |
| 334 | |
Harald Welte | c827185 | 2020-12-14 13:48:09 +0100 | [diff] [blame] | 335 | static enum usb_fnd_resp |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 336 | _e1_get_intf(const struct usb_intf_desc *base, uint8_t *alt) |
| 337 | { |
| 338 | if (base->bInterfaceNumber != 0) |
| 339 | return USB_FND_CONTINUE; |
| 340 | |
| 341 | *alt = g_usb_e1.running ? 1 : 0; |
| 342 | |
| 343 | return USB_FND_SUCCESS; |
| 344 | } |
| 345 | |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 346 | static bool |
| 347 | _set_tx_mode_done(struct usb_xfer *xfer) |
| 348 | { |
| 349 | const struct ice1usb_tx_config *cfg = (const struct ice1usb_tx_config *) xfer->data; |
| 350 | printf("set_tx_mode %02x%02x%02x%02x\r\n", |
| 351 | xfer->data[0], xfer->data[1], xfer->data[2], xfer->data[3]); |
| 352 | g_usb_e1.tx_cfg = *cfg; |
| 353 | _perform_tx_config(); |
| 354 | return true; |
| 355 | } |
| 356 | |
| 357 | static bool |
| 358 | _set_rx_mode_done(struct usb_xfer *xfer) |
| 359 | { |
| 360 | const struct ice1usb_rx_config *cfg = (const struct ice1usb_rx_config *) xfer->data; |
| 361 | printf("set_rx_mode %02x\r\n", xfer->data[0]); |
| 362 | g_usb_e1.rx_cfg = *cfg; |
| 363 | _perform_rx_config(); |
| 364 | return true; |
| 365 | } |
| 366 | |
| 367 | /* per-interface requests */ |
| 368 | static enum usb_fnd_resp |
| 369 | _e1_ctrl_req_intf(struct usb_ctrl_req *req, struct usb_xfer *xfer) |
| 370 | { |
| 371 | unsigned int i; |
| 372 | |
| 373 | switch (req->bRequest) { |
| 374 | case ICE1USB_INTF_GET_CAPABILITIES: |
| 375 | /* no optional capabilities yet */ |
| 376 | xfer->len = 0; |
| 377 | break; |
| 378 | case ICE1USB_INTF_SET_TX_CFG: |
| 379 | if (req->wLength < sizeof(struct ice1usb_tx_config)) |
| 380 | return USB_FND_ERROR; |
| 381 | xfer->cb_done = _set_tx_mode_done; |
| 382 | xfer->cb_ctx = req; |
| 383 | xfer->len = sizeof(struct ice1usb_tx_config); |
| 384 | break; |
| 385 | case ICE1USB_INTF_GET_TX_CFG: |
| 386 | if (req->wLength < sizeof(struct ice1usb_tx_config)) |
| 387 | return USB_FND_ERROR; |
| 388 | memcpy(xfer->data, &g_usb_e1.tx_cfg, sizeof(struct ice1usb_tx_config)); |
| 389 | xfer->len = sizeof(struct ice1usb_tx_config); |
| 390 | break; |
| 391 | case ICE1USB_INTF_SET_RX_CFG: |
| 392 | if (req->wLength < sizeof(struct ice1usb_rx_config)) |
| 393 | return USB_FND_ERROR; |
| 394 | xfer->cb_done = _set_rx_mode_done; |
| 395 | xfer->cb_ctx = req; |
| 396 | xfer->len = sizeof(struct ice1usb_rx_config); |
| 397 | break; |
| 398 | case ICE1USB_INTF_GET_RX_CFG: |
| 399 | if (req->wLength < sizeof(struct ice1usb_rx_config)) |
| 400 | return USB_FND_ERROR; |
| 401 | memcpy(xfer->data, &g_usb_e1.rx_cfg, sizeof(struct ice1usb_rx_config)); |
| 402 | xfer->len = sizeof(struct ice1usb_rx_config); |
| 403 | break; |
| 404 | default: |
| 405 | return USB_FND_ERROR; |
| 406 | } |
| 407 | |
| 408 | return USB_FND_SUCCESS; |
| 409 | } |
| 410 | |
| 411 | /* device-global requests */ |
| 412 | static enum usb_fnd_resp |
| 413 | _e1_ctrl_req_dev(struct usb_ctrl_req *req, struct usb_xfer *xfer) |
| 414 | { |
| 415 | switch (req->bRequest) { |
| 416 | case ICE1USB_DEV_GET_CAPABILITIES: |
| 417 | xfer->data[0] = (1 << ICE1USB_DEV_CAP_GPSDO); |
| 418 | xfer->len = 1; |
| 419 | break; |
| 420 | default: |
| 421 | return USB_FND_ERROR; |
| 422 | } |
| 423 | |
| 424 | return USB_FND_SUCCESS; |
| 425 | } |
| 426 | |
| 427 | |
| 428 | /* USB host issues a control request to us */ |
| 429 | static enum usb_fnd_resp |
| 430 | _e1_ctrl_req(struct usb_ctrl_req *req, struct usb_xfer *xfer) |
| 431 | { |
| 432 | if (USB_REQ_TYPE(req) != USB_REQ_TYPE_VENDOR) |
| 433 | return USB_FND_CONTINUE; |
| 434 | |
| 435 | switch (USB_REQ_RCPT(req)) { |
| 436 | case USB_REQ_RCPT_DEV: |
| 437 | return _e1_ctrl_req_dev(req, xfer); |
| 438 | case USB_REQ_RCPT_INTF: |
| 439 | if (req->wIndex != 0) |
| 440 | return USB_FND_ERROR; |
| 441 | return _e1_ctrl_req_intf(req, xfer); |
| 442 | case USB_REQ_RCPT_EP: |
| 443 | case USB_REQ_RCPT_OTHER: |
| 444 | default: |
| 445 | return USB_FND_ERROR; |
| 446 | } |
| 447 | } |
| 448 | |
| 449 | |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 450 | static struct usb_fn_drv _e1_drv = { |
| 451 | .set_conf = _e1_set_conf, |
| 452 | .set_intf = _e1_set_intf, |
| 453 | .get_intf = _e1_get_intf, |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 454 | .ctrl_req = _e1_ctrl_req, |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 455 | }; |
| 456 | |
| 457 | void |
| 458 | usb_e1_init(void) |
| 459 | { |
| 460 | memset(&g_usb_e1, 0x00, sizeof(g_usb_e1)); |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 461 | g_usb_e1.tx_cfg = tx_cfg_default; |
| 462 | g_usb_e1.rx_cfg = rx_cfg_default; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 463 | usb_register_function_driver(&_e1_drv); |
| 464 | } |