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" |
Harald Welte | 2df1f80 | 2020-12-14 17:46:53 +0100 | [diff] [blame] | 16 | #include "e1.h" |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 17 | #include "misc.h" |
| 18 | #include "usb_desc_ids.h" |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 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 | |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 44 | static volatile struct usb_ep * |
| 45 | _get_ep_regs(uint8_t ep) |
| 46 | { |
| 47 | return (ep & 0x80) ? &usb_ep_regs[ep & 0x1f].in : &usb_ep_regs[ep & 0x1f].out; |
| 48 | } |
| 49 | |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 50 | static void |
| 51 | _usb_fill_feedback_ep(void) |
| 52 | { |
| 53 | static uint16_t ticks_prev = 0; |
| 54 | uint16_t ticks; |
| 55 | uint32_t val = 8192; |
| 56 | unsigned int level; |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 57 | volatile struct usb_ep *ep_regs; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 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 | 436b775 | 2022-01-03 22:09:54 +0100 | [diff] [blame] | 60 | ticks = e1_tick_read(0); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 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 */ |
Sylvain Munaut | 3da5151 | 2022-01-03 22:12:59 +0100 | [diff] [blame] | 67 | level = e1_tx_level(0); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 68 | if (level < (3 * 16)) |
| 69 | val += 256; |
| 70 | else if (level > (8 * 16)) |
| 71 | val -= 256; |
| 72 | |
| 73 | /* Prepare buffer */ |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 74 | ep_regs = _get_ep_regs(USB_EP_E1_FB(0)); |
| 75 | usb_data_write(ep_regs->bd[0].ptr, &val, 4); |
| 76 | ep_regs->bd[0].csr = USB_BD_STATE_RDY_DATA | USB_BD_LEN(3); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 77 | } |
| 78 | |
| 79 | |
| 80 | void |
| 81 | usb_e1_run(void) |
| 82 | { |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 83 | volatile struct usb_ep *ep_regs; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 84 | int bdi; |
| 85 | |
| 86 | if (!g_usb_e1.running) |
| 87 | return; |
| 88 | |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 89 | /* Interrupt endpoint */ |
| 90 | ep_regs = _get_ep_regs(USB_EP_E1_INT(0)); |
| 91 | |
| 92 | if ((ep_regs->bd[0].csr & USB_BD_STATE_MSK) != USB_BD_STATE_RDY_DATA) { |
Sylvain Munaut | 3da5151 | 2022-01-03 22:12:59 +0100 | [diff] [blame] | 93 | const struct e1_error_count *cur_err = e1_get_error_count(0); |
Harald Welte | 805f2cf | 2020-12-14 17:31:03 +0100 | [diff] [blame] | 94 | if (memcmp(cur_err, &g_usb_e1.last_err, sizeof(*cur_err))) { |
| 95 | struct ice1usb_irq errmsg = { |
| 96 | .type = ICE1USB_IRQ_T_ERRCNT, |
| 97 | .u = { |
| 98 | .errors = { |
| 99 | .crc = cur_err->crc, |
| 100 | .align = cur_err->align, |
| 101 | .ovfl = cur_err->ovfl, |
| 102 | .unfl = cur_err->unfl, |
| 103 | .flags = cur_err->flags, |
| 104 | } |
| 105 | } |
| 106 | }; |
| 107 | printf("E"); |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 108 | usb_data_write(ep_regs->bd[0].ptr, &errmsg, sizeof(errmsg)); |
| 109 | ep_regs->bd[0].csr = USB_BD_STATE_RDY_DATA | USB_BD_LEN(sizeof(errmsg)); |
Harald Welte | 805f2cf | 2020-12-14 17:31:03 +0100 | [diff] [blame] | 110 | g_usb_e1.last_err = *cur_err; |
| 111 | } |
| 112 | } |
| 113 | |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 114 | /* Data IN endpoint */ |
| 115 | ep_regs = _get_ep_regs(USB_EP_E1_IN(0)); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 116 | bdi = g_usb_e1.in_bdi; |
| 117 | |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 118 | while ((ep_regs->bd[bdi].csr & USB_BD_STATE_MSK) != USB_BD_STATE_RDY_DATA) |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 119 | { |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 120 | uint32_t ptr = ep_regs->bd[bdi].ptr; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 121 | uint32_t hdr; |
Harald Welte | 2df1f80 | 2020-12-14 17:46:53 +0100 | [diff] [blame] | 122 | unsigned int pos; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 123 | |
| 124 | /* Error check */ |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 125 | if ((ep_regs->bd[bdi].csr & USB_BD_STATE_MSK) == USB_BD_STATE_DONE_ERR) |
| 126 | puts("Err EP IN\n"); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 127 | |
| 128 | /* Get some data from E1 */ |
Sylvain Munaut | 3da5151 | 2022-01-03 22:12:59 +0100 | [diff] [blame] | 129 | int n = e1_rx_level(0); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 130 | |
Sylvain Munaut | 1d98709 | 2022-01-05 21:04:09 +0100 | [diff] [blame^] | 131 | if (n > 32) |
| 132 | n = 9; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 133 | else if (n > 8) |
| 134 | n = 8; |
| 135 | else if (!n) |
| 136 | break; |
| 137 | |
Sylvain Munaut | 3da5151 | 2022-01-03 22:12:59 +0100 | [diff] [blame] | 138 | n = e1_rx_need_data(0, (ptr >> 2) + 1, n, &pos); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 139 | |
Harald Welte | 2df1f80 | 2020-12-14 17:46:53 +0100 | [diff] [blame] | 140 | /* Write header: currently version and pos (mfr/fr number) */ |
| 141 | hdr = (0 << 28) | (pos & 0xff); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 142 | usb_data_write(ptr, &hdr, 4); |
| 143 | |
| 144 | /* Resubmit */ |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 145 | ep_regs->bd[bdi].csr = USB_BD_STATE_RDY_DATA | USB_BD_LEN((n * 32) + 4); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 146 | |
| 147 | /* Next BDI */ |
| 148 | bdi ^= 1; |
| 149 | g_usb_e1.in_bdi = bdi; |
| 150 | } |
| 151 | |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 152 | /* Data OUT endpoint */ |
| 153 | ep_regs = _get_ep_regs(USB_EP_E1_OUT(0)); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 154 | bdi = g_usb_e1.out_bdi; |
| 155 | |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 156 | while ((ep_regs->bd[bdi].csr & USB_BD_STATE_MSK) != USB_BD_STATE_RDY_DATA) |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 157 | { |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 158 | uint32_t ptr = ep_regs->bd[bdi].ptr; |
| 159 | uint32_t csr = ep_regs->bd[bdi].csr; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 160 | uint32_t hdr; |
| 161 | |
| 162 | /* Error check */ |
| 163 | if ((csr & USB_BD_STATE_MSK) == USB_BD_STATE_DONE_ERR) { |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 164 | puts("Err EP OUT\n"); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 165 | goto refill; |
| 166 | } |
| 167 | |
| 168 | /* Grab header */ |
| 169 | usb_data_read(&hdr, ptr, 4); |
| 170 | |
| 171 | /* Empty data into the FIFO */ |
Sylvain Munaut | d108dfb | 2022-01-03 21:11:05 +0100 | [diff] [blame] | 172 | int n = ((int)(csr & USB_BD_LEN_MSK) - 6) / 32; |
| 173 | if (n > 0) |
Sylvain Munaut | 3da5151 | 2022-01-03 22:12:59 +0100 | [diff] [blame] | 174 | e1_tx_feed_data(0, (ptr >> 2) + 1, n); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 175 | |
| 176 | refill: |
| 177 | /* Refill it */ |
Sylvain Munaut | 1d98709 | 2022-01-05 21:04:09 +0100 | [diff] [blame^] | 178 | ep_regs->bd[bdi].csr = USB_BD_STATE_RDY_DATA | USB_BD_LEN(292); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 179 | |
| 180 | /* Next BDI */ |
| 181 | bdi ^= 1; |
| 182 | g_usb_e1.out_bdi = bdi; |
| 183 | |
| 184 | static int x = 0; |
| 185 | if ((x++ & 0xff) == 0xff) |
| 186 | puts("."); |
| 187 | } |
| 188 | |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 189 | /* Feedback endpoint */ |
| 190 | ep_regs = _get_ep_regs(USB_EP_E1_FB(0)); |
| 191 | |
| 192 | if ((ep_regs->bd[0].csr & USB_BD_STATE_MSK) != USB_BD_STATE_RDY_DATA) |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 193 | { |
| 194 | _usb_fill_feedback_ep(); |
| 195 | } |
| 196 | } |
| 197 | |
Harald Welte | c827185 | 2020-12-14 13:48:09 +0100 | [diff] [blame] | 198 | static enum usb_fnd_resp |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 199 | _e1_set_conf(const struct usb_conf_desc *conf) |
| 200 | { |
| 201 | const struct usb_intf_desc *intf; |
| 202 | |
| 203 | printf("e1 set_conf %08x\n", conf); |
| 204 | if (!conf) |
| 205 | return USB_FND_SUCCESS; |
| 206 | |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 207 | intf = usb_desc_find_intf(conf, USB_INTF_E1(0), 0, NULL); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 208 | if (!intf) |
| 209 | return USB_FND_ERROR; |
| 210 | |
| 211 | printf("e1 set_conf %08x\n", intf); |
| 212 | |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 213 | usb_ep_boot(intf, USB_EP_E1_IN(0), true); |
| 214 | usb_ep_boot(intf, USB_EP_E1_OUT(0), true); |
| 215 | usb_ep_boot(intf, USB_EP_E1_FB(0), false); |
| 216 | usb_ep_boot(intf, USB_EP_E1_INT(0), false); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 217 | |
| 218 | return USB_FND_SUCCESS; |
| 219 | } |
| 220 | |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 221 | static void _perform_tx_config(void) |
| 222 | { |
| 223 | const struct ice1usb_tx_config *cfg = &g_usb_e1.tx_cfg; |
Sylvain Munaut | 3da5151 | 2022-01-03 22:12:59 +0100 | [diff] [blame] | 224 | e1_tx_config(0, |
| 225 | ((cfg->mode & 3) << 1) | |
| 226 | ((cfg->timing & 1) << 3) | |
| 227 | ((cfg->alarm & 1) << 4) | |
| 228 | ((cfg->ext_loopback & 3) << 5) |
| 229 | ); |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 230 | } |
| 231 | |
| 232 | static void _perform_rx_config(void) |
| 233 | { |
| 234 | const struct ice1usb_rx_config *cfg = &g_usb_e1.rx_cfg; |
Sylvain Munaut | 3da5151 | 2022-01-03 22:12:59 +0100 | [diff] [blame] | 235 | e1_rx_config(0, |
| 236 | (cfg->mode << 1) |
| 237 | ); |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 238 | } |
| 239 | |
Harald Welte | c827185 | 2020-12-14 13:48:09 +0100 | [diff] [blame] | 240 | static enum usb_fnd_resp |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 241 | _e1_set_intf(const struct usb_intf_desc *base, const struct usb_intf_desc *sel) |
| 242 | { |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 243 | volatile struct usb_ep *ep_regs; |
| 244 | |
Sylvain Munaut | 9674436 | 2022-01-03 17:03:26 +0100 | [diff] [blame] | 245 | /* Validity checks */ |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 246 | if ((base->bInterfaceClass != 0xff) || (base->bInterfaceSubClass != 0xe1)) |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 247 | return USB_FND_CONTINUE; |
| 248 | |
Sylvain Munaut | 9674436 | 2022-01-03 17:03:26 +0100 | [diff] [blame] | 249 | if (sel->bAlternateSetting > 1) |
| 250 | return USB_FND_ERROR; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 251 | |
Sylvain Munaut | 9674436 | 2022-01-03 17:03:26 +0100 | [diff] [blame] | 252 | /* Don't do anything if no change */ |
| 253 | if (g_usb_e1.running == (sel->bAlternateSetting != 0)) |
| 254 | return USB_FND_SUCCESS; |
| 255 | |
| 256 | g_usb_e1.running = (sel->bAlternateSetting != 0); |
| 257 | |
| 258 | /* Reconfigure the endpoints */ |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 259 | usb_ep_reconf(sel, USB_EP_E1_IN(0)); |
| 260 | usb_ep_reconf(sel, USB_EP_E1_OUT(0)); |
| 261 | usb_ep_reconf(sel, USB_EP_E1_FB(0)); |
| 262 | usb_ep_reconf(sel, USB_EP_E1_INT(0)); |
Sylvain Munaut | 9674436 | 2022-01-03 17:03:26 +0100 | [diff] [blame] | 263 | |
| 264 | /* Update E1 and USB state */ |
| 265 | switch (g_usb_e1.running) { |
| 266 | case false: |
| 267 | /* Disable E1 rx/tx */ |
Sylvain Munaut | 3da5151 | 2022-01-03 22:12:59 +0100 | [diff] [blame] | 268 | e1_init(0, 0, 0); |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 269 | break; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 270 | |
Sylvain Munaut | 9674436 | 2022-01-03 17:03:26 +0100 | [diff] [blame] | 271 | case true: |
| 272 | /* Reset and Re-Enable E1 */ |
Sylvain Munaut | 3da5151 | 2022-01-03 22:12:59 +0100 | [diff] [blame] | 273 | e1_init(0, 0, 0); |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 274 | _perform_rx_config(); |
| 275 | _perform_tx_config(); |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 276 | |
Sylvain Munaut | 9674436 | 2022-01-03 17:03:26 +0100 | [diff] [blame] | 277 | /* Reset BDI */ |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 278 | g_usb_e1.in_bdi = 0; |
Sylvain Munaut | 9674436 | 2022-01-03 17:03:26 +0100 | [diff] [blame] | 279 | g_usb_e1.out_bdi = 0; |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 280 | |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 281 | /* EP OUT: Queue two buffers */ |
| 282 | ep_regs = _get_ep_regs(USB_EP_E1_FB(0)); |
Sylvain Munaut | 1d98709 | 2022-01-05 21:04:09 +0100 | [diff] [blame^] | 283 | ep_regs->bd[0].csr = USB_BD_STATE_RDY_DATA | USB_BD_LEN(292); |
| 284 | ep_regs->bd[1].csr = USB_BD_STATE_RDY_DATA | USB_BD_LEN(292); |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 285 | |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 286 | /* EP Feedback: Pre-fill */ |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 287 | _usb_fill_feedback_ep(); |
| 288 | |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 289 | break; |
Harald Welte | e6b0fe8 | 2020-12-17 22:22:05 +0100 | [diff] [blame] | 290 | } |
Harald Welte | 805f2cf | 2020-12-14 17:31:03 +0100 | [diff] [blame] | 291 | |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 292 | return USB_FND_SUCCESS; |
| 293 | } |
| 294 | |
Harald Welte | c827185 | 2020-12-14 13:48:09 +0100 | [diff] [blame] | 295 | static enum usb_fnd_resp |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 296 | _e1_get_intf(const struct usb_intf_desc *base, uint8_t *alt) |
| 297 | { |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 298 | if ((base->bInterfaceClass != 0xff) || (base->bInterfaceSubClass != 0xe1)) |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 299 | return USB_FND_CONTINUE; |
| 300 | |
| 301 | *alt = g_usb_e1.running ? 1 : 0; |
| 302 | |
| 303 | return USB_FND_SUCCESS; |
| 304 | } |
| 305 | |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 306 | static bool |
| 307 | _set_tx_mode_done(struct usb_xfer *xfer) |
| 308 | { |
| 309 | const struct ice1usb_tx_config *cfg = (const struct ice1usb_tx_config *) xfer->data; |
| 310 | printf("set_tx_mode %02x%02x%02x%02x\r\n", |
| 311 | xfer->data[0], xfer->data[1], xfer->data[2], xfer->data[3]); |
| 312 | g_usb_e1.tx_cfg = *cfg; |
| 313 | _perform_tx_config(); |
| 314 | return true; |
| 315 | } |
| 316 | |
| 317 | static bool |
| 318 | _set_rx_mode_done(struct usb_xfer *xfer) |
| 319 | { |
| 320 | const struct ice1usb_rx_config *cfg = (const struct ice1usb_rx_config *) xfer->data; |
| 321 | printf("set_rx_mode %02x\r\n", xfer->data[0]); |
| 322 | g_usb_e1.rx_cfg = *cfg; |
| 323 | _perform_rx_config(); |
| 324 | return true; |
| 325 | } |
| 326 | |
| 327 | /* per-interface requests */ |
| 328 | static enum usb_fnd_resp |
| 329 | _e1_ctrl_req_intf(struct usb_ctrl_req *req, struct usb_xfer *xfer) |
| 330 | { |
| 331 | unsigned int i; |
| 332 | |
| 333 | switch (req->bRequest) { |
| 334 | case ICE1USB_INTF_GET_CAPABILITIES: |
| 335 | /* no optional capabilities yet */ |
| 336 | xfer->len = 0; |
| 337 | break; |
| 338 | case ICE1USB_INTF_SET_TX_CFG: |
| 339 | if (req->wLength < sizeof(struct ice1usb_tx_config)) |
| 340 | return USB_FND_ERROR; |
| 341 | xfer->cb_done = _set_tx_mode_done; |
| 342 | xfer->cb_ctx = req; |
| 343 | xfer->len = sizeof(struct ice1usb_tx_config); |
| 344 | break; |
| 345 | case ICE1USB_INTF_GET_TX_CFG: |
| 346 | if (req->wLength < sizeof(struct ice1usb_tx_config)) |
| 347 | return USB_FND_ERROR; |
| 348 | memcpy(xfer->data, &g_usb_e1.tx_cfg, sizeof(struct ice1usb_tx_config)); |
| 349 | xfer->len = sizeof(struct ice1usb_tx_config); |
| 350 | break; |
| 351 | case ICE1USB_INTF_SET_RX_CFG: |
| 352 | if (req->wLength < sizeof(struct ice1usb_rx_config)) |
| 353 | return USB_FND_ERROR; |
| 354 | xfer->cb_done = _set_rx_mode_done; |
| 355 | xfer->cb_ctx = req; |
| 356 | xfer->len = sizeof(struct ice1usb_rx_config); |
| 357 | break; |
| 358 | case ICE1USB_INTF_GET_RX_CFG: |
| 359 | if (req->wLength < sizeof(struct ice1usb_rx_config)) |
| 360 | return USB_FND_ERROR; |
| 361 | memcpy(xfer->data, &g_usb_e1.rx_cfg, sizeof(struct ice1usb_rx_config)); |
| 362 | xfer->len = sizeof(struct ice1usb_rx_config); |
| 363 | break; |
| 364 | default: |
| 365 | return USB_FND_ERROR; |
| 366 | } |
| 367 | |
| 368 | return USB_FND_SUCCESS; |
| 369 | } |
| 370 | |
| 371 | /* device-global requests */ |
| 372 | static enum usb_fnd_resp |
| 373 | _e1_ctrl_req_dev(struct usb_ctrl_req *req, struct usb_xfer *xfer) |
| 374 | { |
| 375 | switch (req->bRequest) { |
| 376 | case ICE1USB_DEV_GET_CAPABILITIES: |
| 377 | xfer->data[0] = (1 << ICE1USB_DEV_CAP_GPSDO); |
| 378 | xfer->len = 1; |
| 379 | break; |
| 380 | default: |
| 381 | return USB_FND_ERROR; |
| 382 | } |
| 383 | |
| 384 | return USB_FND_SUCCESS; |
| 385 | } |
| 386 | |
| 387 | |
| 388 | /* USB host issues a control request to us */ |
| 389 | static enum usb_fnd_resp |
| 390 | _e1_ctrl_req(struct usb_ctrl_req *req, struct usb_xfer *xfer) |
| 391 | { |
| 392 | if (USB_REQ_TYPE(req) != USB_REQ_TYPE_VENDOR) |
| 393 | return USB_FND_CONTINUE; |
| 394 | |
| 395 | switch (USB_REQ_RCPT(req)) { |
| 396 | case USB_REQ_RCPT_DEV: |
| 397 | return _e1_ctrl_req_dev(req, xfer); |
| 398 | case USB_REQ_RCPT_INTF: |
Sylvain Munaut | ff44f14 | 2022-01-03 20:34:23 +0100 | [diff] [blame] | 399 | if (req->wIndex != USB_INTF_E1(0)) |
Sylvain Munaut | 0f40ee0 | 2022-01-03 20:33:08 +0100 | [diff] [blame] | 400 | return USB_FND_CONTINUE; |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 401 | return _e1_ctrl_req_intf(req, xfer); |
| 402 | case USB_REQ_RCPT_EP: |
| 403 | case USB_REQ_RCPT_OTHER: |
| 404 | default: |
| 405 | return USB_FND_ERROR; |
| 406 | } |
| 407 | } |
| 408 | |
| 409 | |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 410 | static struct usb_fn_drv _e1_drv = { |
| 411 | .set_conf = _e1_set_conf, |
| 412 | .set_intf = _e1_set_intf, |
| 413 | .get_intf = _e1_get_intf, |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 414 | .ctrl_req = _e1_ctrl_req, |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 415 | }; |
| 416 | |
| 417 | void |
| 418 | usb_e1_init(void) |
| 419 | { |
| 420 | memset(&g_usb_e1, 0x00, sizeof(g_usb_e1)); |
Harald Welte | 9469e04 | 2020-12-15 23:09:40 +0100 | [diff] [blame] | 421 | g_usb_e1.tx_cfg = tx_cfg_default; |
| 422 | g_usb_e1.rx_cfg = rx_cfg_default; |
Sylvain Munaut | bc9f5c4 | 2020-09-14 10:22:29 +0200 | [diff] [blame] | 423 | usb_register_function_driver(&_e1_drv); |
| 424 | } |