developer | 765b198 | 2021-06-24 09:18:15 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2015 MediaTek Inc. |
| 3 | * Author: |
| 4 | * Shaocheng.Wang <shaocheng.wang@mediatek.com> |
| 5 | * Chunfeng.Yun <chunfeng.yun@mediatek.com> |
| 6 | * |
| 7 | * This software is licensed under the terms of the GNU General Public |
| 8 | * License version 2, as published by the Free Software Foundation, and |
| 9 | * may be copied, distributed, and modified under those terms. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | */ |
| 17 | |
| 18 | #include <linux/platform_device.h> |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/slab.h> |
| 21 | #include <linux/usb.h> |
| 22 | #include <linux/kobject.h> |
| 23 | |
| 24 | #include "../core/usb.h" |
| 25 | #include "xhci-mtk.h" |
| 26 | |
| 27 | static int t_test_j(struct xhci_hcd_mtk *mtk, int argc, char **argv); |
| 28 | static int t_test_k(struct xhci_hcd_mtk *mtk, int argc, char **argv); |
| 29 | static int t_test_se0(struct xhci_hcd_mtk *mtk, int argc, char **argv); |
| 30 | static int t_test_packet(struct xhci_hcd_mtk *mtk, int argc, char **argv); |
| 31 | static int t_test_suspend(struct xhci_hcd_mtk *mtk, int argc, char **argv); |
| 32 | static int t_test_resume(struct xhci_hcd_mtk *mtk, int argc, char **argv); |
| 33 | static int t_test_get_device_descriptor(struct xhci_hcd_mtk *mtk, |
| 34 | int argc, char **argv); |
| 35 | static int t_test_enumerate_bus(struct xhci_hcd_mtk *mtk, |
| 36 | int argc, char **argv); |
| 37 | static int t_power_u1u2(struct xhci_hcd_mtk *mtk, int argc, char **argv); |
| 38 | |
| 39 | #define PORT_PLS_VALUE(p) ((p >> 5) & 0xf) |
| 40 | |
| 41 | #define MAX_NAME_SIZE 32 |
| 42 | #define MAX_ARG_SIZE 4 |
| 43 | |
| 44 | struct hqa_test_cmd { |
| 45 | char name[MAX_NAME_SIZE]; |
| 46 | int (*cb_func)(struct xhci_hcd_mtk *mtk, int argc, char **argv); |
| 47 | char *discription; |
| 48 | }; |
| 49 | |
| 50 | |
| 51 | struct hqa_test_cmd xhci_mtk_hqa_cmds[] = { |
| 52 | {"test.j", &t_test_j, "Test_J"}, |
| 53 | {"test.k", &t_test_k, "Test_K"}, |
| 54 | {"test.se0", &t_test_se0, "Test_SE0_NAK"}, |
| 55 | {"test.packet", &t_test_packet, "Test_PACKET"}, |
| 56 | {"test.suspend", &t_test_suspend, "Port Suspend"}, |
| 57 | {"test.resume", &t_test_resume, "Port Resume"}, |
| 58 | {"test.enumbus", &t_test_enumerate_bus, "Enumerate Bus"}, |
| 59 | {"test.getdesc", &t_test_get_device_descriptor, |
| 60 | "Get Device Discriptor"}, |
| 61 | {"pm.u1u2", &t_power_u1u2, "Port U1,U2"}, |
| 62 | {"", NULL, ""}, |
| 63 | }; |
| 64 | |
| 65 | |
| 66 | int call_hqa_func(struct xhci_hcd_mtk *mtk, char *buf) |
| 67 | { |
| 68 | struct hqa_test_cmd *hqa; |
| 69 | struct usb_hcd *hcd = mtk->hcd; |
| 70 | char *argv[MAX_ARG_SIZE]; |
| 71 | int argc; |
| 72 | int i; |
| 73 | |
| 74 | argc = 0; |
| 75 | do { |
| 76 | argv[argc] = strsep(&buf, " "); |
| 77 | xhci_err(hcd_to_xhci(hcd), "[%d] %s\r\n", argc, argv[argc]); |
| 78 | argc++; |
| 79 | } while (buf); |
| 80 | |
| 81 | for (i = 0; i < ARRAY_SIZE(xhci_mtk_hqa_cmds); i++) { |
| 82 | hqa = &xhci_mtk_hqa_cmds[i]; |
| 83 | if ((!strcmp(hqa->name, argv[0])) && (hqa->cb_func != NULL)) |
| 84 | return hqa->cb_func(mtk, argc, argv); |
| 85 | } |
| 86 | |
| 87 | return -1; |
| 88 | } |
| 89 | |
| 90 | static int test_mode_enter(struct xhci_hcd_mtk *mtk, |
| 91 | u32 port_id, u32 test_value) |
| 92 | { |
| 93 | struct usb_hcd *hcd = mtk->hcd; |
| 94 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 95 | u32 __iomem *addr; |
| 96 | u32 temp; |
| 97 | |
| 98 | if (mtk->test_mode == 0) { |
| 99 | xhci_stop(hcd); |
| 100 | xhci_halt(xhci); |
| 101 | } |
| 102 | |
| 103 | addr = &xhci->op_regs->port_power_base + |
| 104 | NUM_PORT_REGS * ((port_id - 1) & 0xff); |
| 105 | temp = readl(addr); |
| 106 | temp &= ~(0xf << 28); |
| 107 | temp |= (test_value << 28); |
| 108 | writel(temp, addr); |
| 109 | mtk->test_mode = 1; |
| 110 | |
| 111 | return 0; |
| 112 | } |
| 113 | |
| 114 | static int test_mode_exit(struct xhci_hcd_mtk *mtk) |
| 115 | { |
| 116 | /* struct usb_hcd *hcd = mtk->hcd; */ |
| 117 | /* struct xhci_hcd *xhci = hcd_to_xhci(hcd); */ |
| 118 | |
| 119 | if (mtk->test_mode == 1) { |
| 120 | #if 0 |
| 121 | xhci_reset(xhci); |
| 122 | /*reinitIP(&pdev->dev);*/ |
| 123 | |
| 124 | if (!usb_hcd_is_primary_hcd(test_hcd)) |
| 125 | secondary_hcd = test_hcd; |
| 126 | else |
| 127 | secondary_hcd = xhci->shared_hcd; |
| 128 | |
| 129 | retval = xhci_init(test_hcd->primary_hcd); |
| 130 | if (retval) |
| 131 | return retval; |
| 132 | |
| 133 | retval = xhci_run(test_hcd->primary_hcd); |
| 134 | if (!retval) |
| 135 | retval = xhci_run(secondary_hcd); |
| 136 | |
| 137 | /*enableXhciAllPortPower(xhci);*/ |
| 138 | #endif |
| 139 | mtk->test_mode = 0; |
| 140 | } |
| 141 | return 0; |
| 142 | } |
| 143 | |
| 144 | static int t_test_j(struct xhci_hcd_mtk *mtk, int argc, char **argv) |
| 145 | { |
| 146 | struct usb_hcd *hcd = mtk->hcd; |
| 147 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 148 | long port_id; |
| 149 | u32 test_value; |
| 150 | |
| 151 | port_id = 2; |
| 152 | test_value = 1; |
| 153 | |
| 154 | if (argc > 1 && kstrtol(argv[1], 10, &port_id)) |
| 155 | xhci_err(xhci, "mu3h %s get port-id failed\n", __func__); |
| 156 | |
| 157 | xhci_err(xhci, "mu3h %s test port%d\n", __func__, (int)port_id); |
| 158 | test_mode_enter(mtk, port_id, test_value); |
| 159 | |
| 160 | return 0; |
| 161 | } |
| 162 | |
| 163 | static int t_test_k(struct xhci_hcd_mtk *mtk, int argc, char **argv) |
| 164 | { |
| 165 | struct usb_hcd *hcd = mtk->hcd; |
| 166 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 167 | long port_id; |
| 168 | u32 test_value; |
| 169 | |
| 170 | port_id = 2; |
| 171 | test_value = 2; |
| 172 | |
| 173 | if (argc > 1 && kstrtol(argv[1], 10, &port_id)) |
| 174 | xhci_err(xhci, "mu3h %s get port-id failed\n", __func__); |
| 175 | |
| 176 | xhci_err(xhci, "mu3h %s test port%d\n", __func__, (int)port_id); |
| 177 | test_mode_enter(mtk, port_id, test_value); |
| 178 | |
| 179 | return 0; |
| 180 | } |
| 181 | |
| 182 | static int t_test_se0(struct xhci_hcd_mtk *mtk, int argc, char **argv) |
| 183 | { |
| 184 | struct usb_hcd *hcd = mtk->hcd; |
| 185 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 186 | long port_id; |
| 187 | u32 test_value; |
| 188 | |
| 189 | port_id = 2; |
| 190 | test_value = 3; |
| 191 | |
| 192 | if (argc > 1 && kstrtol(argv[1], 10, &port_id)) |
| 193 | xhci_err(xhci, "mu3h %s get port-id failed\n", __func__); |
| 194 | |
| 195 | xhci_err(xhci, "mu3h %s test port%ld\n", __func__, port_id); |
| 196 | test_mode_enter(mtk, port_id, test_value); |
| 197 | |
| 198 | return 0; |
| 199 | } |
| 200 | |
| 201 | static int t_test_packet(struct xhci_hcd_mtk *mtk, int argc, char **argv) |
| 202 | { |
| 203 | struct usb_hcd *hcd = mtk->hcd; |
| 204 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 205 | long port_id; |
| 206 | u32 test_value; |
| 207 | |
| 208 | port_id = 2; |
| 209 | test_value = 4; |
| 210 | |
| 211 | if (argc > 1 && kstrtol(argv[1], 10, &port_id)) |
| 212 | xhci_err(xhci, "mu3h %s get port-id failed\n", __func__); |
| 213 | |
| 214 | xhci_err(xhci, "mu3h %s test port%ld\n", __func__, port_id); |
| 215 | test_mode_enter(mtk, port_id, test_value); |
| 216 | |
| 217 | return 0; |
| 218 | } |
| 219 | |
| 220 | /* only for u3 ports, valid values are 1, 2, ...*/ |
| 221 | static int t_power_u1u2(struct xhci_hcd_mtk *mtk, int argc, char **argv) |
| 222 | { |
| 223 | struct usb_hcd *hcd = mtk->hcd; |
| 224 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 225 | u32 __iomem *addr; |
| 226 | u32 temp; |
| 227 | int port_id; |
| 228 | int retval = 0; |
| 229 | int u_num = 1; |
| 230 | int u1_val = 1; |
| 231 | int u2_val = 0; |
| 232 | |
| 233 | port_id = 1; /* first u3port by default */ |
| 234 | |
| 235 | if (argc > 1 && kstrtoint(argv[1], 10, &port_id)) |
| 236 | xhci_err(xhci, "mu3h %s get port-id failed\n", __func__); |
| 237 | |
| 238 | if (argc > 2 && kstrtoint(argv[2], 10, &u_num)) |
| 239 | xhci_err(xhci, "mu3h %s get u_num failed\n", __func__); |
| 240 | |
| 241 | if (argc > 3 && kstrtoint(argv[3], 10, &u1_val)) |
| 242 | xhci_err(xhci, "mu3h %s get u1_val failed\n", __func__); |
| 243 | |
| 244 | if (argc > 4 && kstrtoint(argv[4], 10, &u2_val)) |
| 245 | xhci_err(xhci, "mu3h %s get u2_val failed\n", __func__); |
| 246 | |
| 247 | xhci_err(xhci, "mu3h %s test port%d, u_num%d, u1_val%d, u2_val%d\n", |
| 248 | __func__, (int)port_id, u_num, u1_val, u2_val); |
| 249 | |
| 250 | if (mtk->test_mode == 1) { |
| 251 | xhci_err(xhci, "please suspend port first\n"); |
| 252 | return -1; |
| 253 | } |
| 254 | |
| 255 | xhci_err(xhci, "%s: stop port polling\n", __func__); |
| 256 | clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); |
| 257 | del_timer_sync(&hcd->rh_timer); |
| 258 | clear_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags); |
| 259 | del_timer_sync(&xhci->shared_hcd->rh_timer); |
| 260 | clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); |
| 261 | clear_bit(HCD_FLAG_HW_ACCESSIBLE, &xhci->shared_hcd->flags); |
| 262 | |
| 263 | addr = &xhci->op_regs->port_power_base + |
| 264 | NUM_PORT_REGS * ((port_id - 1) & 0xff); |
| 265 | |
| 266 | temp = readl(addr); |
| 267 | if (u_num == 1) { |
| 268 | temp &= ~PORT_U1_TIMEOUT_MASK; |
| 269 | temp |= PORT_U1_TIMEOUT(u1_val); |
| 270 | } else if (u_num == 2) { |
| 271 | temp &= ~PORT_U2_TIMEOUT_MASK; |
| 272 | temp |= PORT_U2_TIMEOUT(u2_val); |
| 273 | } else if (u_num == 3) { |
| 274 | temp &= ~(PORT_U1_TIMEOUT_MASK | PORT_U2_TIMEOUT_MASK); |
| 275 | temp |= PORT_U1_TIMEOUT(u1_val) | PORT_U2_TIMEOUT(u2_val); |
| 276 | } |
| 277 | |
| 278 | writel(temp, addr); |
| 279 | |
| 280 | return retval; |
| 281 | } |
| 282 | |
| 283 | |
| 284 | static int t_test_suspend(struct xhci_hcd_mtk *mtk, int argc, char **argv) |
| 285 | { |
| 286 | struct usb_hcd *hcd = mtk->hcd; |
| 287 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 288 | u32 __iomem *addr; |
| 289 | u32 temp; |
| 290 | long port_id; |
| 291 | |
| 292 | port_id = 2; |
| 293 | |
| 294 | if (argc > 1 && kstrtol(argv[1], 10, &port_id)) |
| 295 | xhci_err(xhci, "mu3h %s get port-id failed\n", __func__); |
| 296 | |
| 297 | xhci_err(xhci, "mu3h %s test port%d\n", __func__, (int)port_id); |
| 298 | |
| 299 | xhci_err(xhci, "%s: stop port polling\n", __func__); |
| 300 | clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); |
| 301 | del_timer_sync(&hcd->rh_timer); |
| 302 | clear_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags); |
| 303 | del_timer_sync(&xhci->shared_hcd->rh_timer); |
| 304 | clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); |
| 305 | clear_bit(HCD_FLAG_HW_ACCESSIBLE, &xhci->shared_hcd->flags); |
| 306 | |
| 307 | temp = readl(&xhci->ir_set->irq_pending); |
| 308 | writel(ER_IRQ_DISABLE(temp), &xhci->ir_set->irq_pending); |
| 309 | |
| 310 | if (mtk->test_mode == 1) |
| 311 | test_mode_exit(mtk); |
| 312 | |
| 313 | /* set PLS = 3 */ |
| 314 | addr = &xhci->op_regs->port_status_base + |
| 315 | NUM_PORT_REGS*((port_id - 1) & 0xff); |
| 316 | |
| 317 | temp = readl(addr); |
| 318 | temp = xhci_port_state_to_neutral(temp); |
| 319 | temp = (temp & ~(0xf << 5)); |
| 320 | temp = (temp | (3 << 5) | PORT_LINK_STROBE); |
| 321 | writel(temp, addr); |
| 322 | xhci_handshake(addr, (0xf << 5), (3 << 5), 30*1000); |
| 323 | |
| 324 | temp = readl(addr); |
| 325 | if (PORT_PLS_VALUE(temp) != 3) |
| 326 | xhci_err(xhci, "port not enter suspend state\n"); |
| 327 | else |
| 328 | xhci_err(xhci, "port enter suspend state\n"); |
| 329 | |
| 330 | return 0; |
| 331 | } |
| 332 | |
| 333 | static int t_test_resume(struct xhci_hcd_mtk *mtk, int argc, char **argv) |
| 334 | { |
| 335 | struct usb_hcd *hcd = mtk->hcd; |
| 336 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 337 | u32 __iomem *addr; |
| 338 | u32 temp; |
| 339 | long port_id; |
| 340 | int retval = 0; |
| 341 | |
| 342 | port_id = 2; |
| 343 | |
| 344 | if (argc > 1 && kstrtol(argv[1], 10, &port_id)) |
| 345 | xhci_err(xhci, "mu3h %s get port-id failed\n", __func__); |
| 346 | |
| 347 | xhci_err(xhci, "mu3h %s test port%d\n", __func__, (int)port_id); |
| 348 | |
| 349 | if (mtk->test_mode == 1) { |
| 350 | xhci_err(xhci, "please suspend port first\n"); |
| 351 | return -1; |
| 352 | } |
| 353 | addr = &xhci->op_regs->port_status_base + |
| 354 | NUM_PORT_REGS * ((port_id - 1) & 0xff); |
| 355 | |
| 356 | temp = readl(addr); |
| 357 | if (PORT_PLS_VALUE(temp) != 3) { |
| 358 | xhci_err(xhci, "port not in suspend state, please suspend port first\n"); |
| 359 | retval = -1; |
| 360 | } else { |
| 361 | temp = xhci_port_state_to_neutral(temp); |
| 362 | temp = (temp & ~(0xf << 5)); |
| 363 | temp = (temp | (15 << 5) | PORT_LINK_STROBE); |
| 364 | writel(temp, addr); |
| 365 | mdelay(20); |
| 366 | |
| 367 | temp = readl(addr); |
| 368 | temp = xhci_port_state_to_neutral(temp); |
| 369 | temp = (temp & ~(0xf << 5)); |
| 370 | temp = (temp | PORT_LINK_STROBE); |
| 371 | writel(temp, addr); |
| 372 | |
| 373 | xhci_handshake(addr, (0xf << 5), (0 << 5), 100*1000); |
| 374 | temp = readl(addr); |
| 375 | if (PORT_PLS_VALUE(temp) != 0) { |
| 376 | xhci_err(xhci, "rusume fail,%x\n", |
| 377 | PORT_PLS_VALUE(temp)); |
| 378 | retval = -1; |
| 379 | } else { |
| 380 | xhci_err(xhci, "port resume ok\n"); |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | return retval; |
| 385 | } |
| 386 | |
| 387 | static int t_test_enumerate_bus(struct xhci_hcd_mtk *mtk, int argc, char **argv) |
| 388 | { |
| 389 | struct usb_hcd *hcd = mtk->hcd; |
| 390 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 391 | struct usb_device *usb2_rh; |
| 392 | struct usb_device *udev; |
| 393 | long port_id; |
| 394 | u32 retval; |
| 395 | |
| 396 | port_id = 2; |
| 397 | |
| 398 | if (argc > 1 && kstrtol(argv[1], 10, &port_id)) |
| 399 | xhci_err(xhci, "mu3h %s get port-id failed\n", __func__); |
| 400 | |
| 401 | xhci_err(xhci, "mu3h %s test port%d\n", __func__, (int)port_id); |
| 402 | |
| 403 | if (mtk->test_mode == 1) { |
| 404 | test_mode_exit(mtk); |
| 405 | return 0; |
| 406 | } |
| 407 | |
| 408 | usb2_rh = hcd->self.root_hub; |
| 409 | udev = usb_hub_find_child(usb2_rh, port_id - 1); |
| 410 | |
| 411 | if (udev != NULL) { |
| 412 | retval = usb_reset_device(udev); |
| 413 | if (retval) { |
| 414 | xhci_err(xhci, "ERROR: enumerate bus fail!\n"); |
| 415 | return -1; |
| 416 | } |
| 417 | } else { |
| 418 | xhci_err(xhci, "ERROR: Device does not exist!\n"); |
| 419 | return -1; |
| 420 | } |
| 421 | |
| 422 | return 0; |
| 423 | } |
| 424 | static int t_test_get_device_descriptor(struct xhci_hcd_mtk *mtk, |
| 425 | int argc, char **argv) |
| 426 | { |
| 427 | struct usb_hcd *hcd = mtk->hcd; |
| 428 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 429 | struct usb_device *usb2_rh; |
| 430 | struct usb_device *udev; |
| 431 | long port_id; |
| 432 | u32 retval = 0; |
| 433 | |
| 434 | port_id = 2; |
| 435 | |
| 436 | if (argc > 1 && kstrtol(argv[1], 10, &port_id)) |
| 437 | xhci_err(xhci, "mu3h %s get port-id failed\n", __func__); |
| 438 | |
| 439 | xhci_err(xhci, "mu3h %s test port%d\n", __func__, (int)port_id); |
| 440 | |
| 441 | if (mtk->test_mode == 1) { |
| 442 | test_mode_exit(mtk); |
| 443 | msleep(2000); |
| 444 | } |
| 445 | |
| 446 | usb2_rh = hcd->self.root_hub; |
| 447 | |
| 448 | udev = usb_hub_find_child(usb2_rh, port_id - 1); |
| 449 | |
| 450 | if (udev != NULL) { |
| 451 | retval = usb_get_device_descriptor(udev, USB_DT_DEVICE_SIZE); |
| 452 | if (retval != sizeof(udev->descriptor)) { |
| 453 | xhci_err(xhci, "ERROR: get device descriptor fail!\n"); |
| 454 | return -1; |
| 455 | } |
| 456 | } else { |
| 457 | xhci_err(xhci, "ERROR: Device does not exist!\n"); |
| 458 | return -1; |
| 459 | } |
| 460 | |
| 461 | return 0; |
| 462 | } |
| 463 | |
| 464 | static ssize_t mu3h_hqa_show(struct device *dev, |
| 465 | struct device_attribute *attr, char *buf) |
| 466 | { |
| 467 | int len = 0; |
| 468 | int bufLen = PAGE_SIZE; |
| 469 | struct hqa_test_cmd *hqa; |
| 470 | int i; |
| 471 | |
| 472 | len += snprintf(buf+len, bufLen-len, "info:\n"); |
| 473 | len += snprintf(buf+len, bufLen-len, |
| 474 | "\techo -n item port-id > hqa\n"); |
| 475 | len += snprintf(buf+len, bufLen-len, |
| 476 | "\tport-id : based on number of usb3-port, e.g.\n"); |
| 477 | len += snprintf(buf+len, bufLen-len, |
| 478 | "\t\txHCI with 1 u3p, 2 u2p: 1st u2p-id is 2(1+1), 2nd is 3\n"); |
| 479 | len += snprintf(buf+len, bufLen-len, "items:\n"); |
| 480 | |
| 481 | for (i = 0; i < ARRAY_SIZE(xhci_mtk_hqa_cmds); i++) { |
| 482 | hqa = &xhci_mtk_hqa_cmds[i]; |
| 483 | len += snprintf(buf+len, bufLen-len, |
| 484 | "\t%s: %s\n", hqa->name, hqa->discription); |
| 485 | } |
| 486 | |
| 487 | return len; |
| 488 | } |
| 489 | |
| 490 | static ssize_t mu3h_hqa_store(struct device *dev, |
| 491 | struct device_attribute *attr, const char *buf, size_t count) |
| 492 | { |
| 493 | struct xhci_hcd_mtk *mtk = dev_get_drvdata(dev); |
| 494 | struct usb_hcd *hcd = mtk->hcd; |
| 495 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 496 | int retval; |
| 497 | |
| 498 | retval = call_hqa_func(mtk, (char *)buf); |
| 499 | if (retval < 0) { |
| 500 | xhci_err(xhci, "mu3h cli fail\n"); |
| 501 | return -1; |
| 502 | } |
| 503 | |
| 504 | return count; |
| 505 | } |
| 506 | |
| 507 | static DEVICE_ATTR(hqa, 0664, mu3h_hqa_show, mu3h_hqa_store); |
| 508 | |
| 509 | #define REGS_LIMIT_XHCI 0x1000 |
| 510 | #define REGS_LIMIT_MU3D 0x3000 |
| 511 | #define REGS_LIMIT_IPPC 0x100 |
| 512 | #define REGS_LIMIT_PHYS 0x4000 |
| 513 | |
| 514 | #define REGS_XHCI_OFFSET 0x0000 |
| 515 | #define REGS_MU3D_OFFSET 0x1000 |
| 516 | #define REGS_IPPC_OFFSET 0x3e00 |
| 517 | #define REGS_PHY_OFFSET 0xA20000 |
| 518 | |
| 519 | static ssize_t ssusb_reg_show(struct device *dev, |
| 520 | struct device_attribute *attr, char *buf) |
| 521 | { |
| 522 | int ret = -EINVAL; |
| 523 | |
| 524 | ret = sprintf(buf, "SSUSB register operation interface help info.\n" |
| 525 | " rx - read xhci reg: offset [len]\n" |
| 526 | " rm - read mu3d reg: offset [len]\n" |
| 527 | " ri - read ippc reg: offset [len]\n" |
| 528 | " rp - read phy reg: offset [len]\n" |
| 529 | " wx - write xhci reg: offset value\n" |
| 530 | " wm - write mu3d reg: offset value\n" |
| 531 | " wi - write ippc reg: offset value\n" |
| 532 | " wp - write phy reg: offset value\n" |
| 533 | " sx - set xhci mac reg bits: offset bit_start mask value\n" |
| 534 | " sm - set mu3d mac reg bits: offset bit_start mask value\n" |
| 535 | " si - set ippc reg bits: offset bit_start mask value\n" |
| 536 | " sp - set phy reg bits: offset bit_start mask value\n" |
| 537 | " px - print xhci mac reg bits: offset bit_start mask\n" |
| 538 | " pm - print mu3d mac reg bits: offset bit_start mask\n" |
| 539 | " pi - print ippc reg bits: offset bit_start mask\n" |
| 540 | " pp - print phy reg bits: offset bit_start mask\n" |
| 541 | " NOTE: numbers should be HEX, except bit_star(DEC)\n"); |
| 542 | |
| 543 | return ret; |
| 544 | } |
| 545 | |
| 546 | /* base address: return value; limit is put into @limit */ |
| 547 | static void __iomem *get_reg_base_limit(struct xhci_hcd_mtk *mtk, |
| 548 | const char *buf, u32 *limit) |
| 549 | { |
| 550 | struct usb_hcd *hcd = mtk->hcd; |
| 551 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 552 | void __iomem *base; |
| 553 | u32 len = 0; |
| 554 | |
| 555 | switch (buf[1]) { |
| 556 | case 'x': |
| 557 | base = mtk->ip_base + REGS_XHCI_OFFSET; |
| 558 | len = REGS_LIMIT_XHCI; |
| 559 | xhci_info(xhci, "xhci's reg:\n"); |
| 560 | break; |
| 561 | case 'm': |
| 562 | base = mtk->ip_base + REGS_MU3D_OFFSET; |
| 563 | len = REGS_LIMIT_MU3D; |
| 564 | xhci_info(xhci, "mu3d's reg:\n"); |
| 565 | break; |
| 566 | case 'i': |
| 567 | base = mtk->ip_base + REGS_IPPC_OFFSET; |
| 568 | len = REGS_LIMIT_IPPC; |
| 569 | xhci_info(xhci, "ippc's reg:\n"); |
| 570 | break; |
| 571 | case 'p': |
| 572 | base = mtk->ip_base + REGS_PHY_OFFSET; |
| 573 | len = REGS_LIMIT_PHYS; |
| 574 | xhci_info(xhci, "phy's reg:\n"); |
| 575 | break; |
| 576 | default: |
| 577 | base = NULL; |
| 578 | } |
| 579 | |
| 580 | *limit = len; |
| 581 | |
| 582 | return base; |
| 583 | } |
| 584 | |
| 585 | static void ssusb_write_reg(struct xhci_hcd_mtk *mtk, const char *buf) |
| 586 | { |
| 587 | struct usb_hcd *hcd = mtk->hcd; |
| 588 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 589 | void __iomem *base; |
| 590 | u32 offset = 0; |
| 591 | u32 value = 0; |
| 592 | u32 old_val = 0; |
| 593 | u32 limit = 0; |
| 594 | u32 param; |
| 595 | |
| 596 | param = sscanf(buf, "%*s 0x%x 0x%x", &offset, &value); |
| 597 | xhci_info(xhci, "params-%d (offset: %#x, value: %#x)\n", |
| 598 | param, offset, value); |
| 599 | |
| 600 | base = get_reg_base_limit(mtk, buf, &limit); |
| 601 | if (!base || (param != 2)) { |
| 602 | xhci_err(xhci, "params are invalid!\n"); |
| 603 | return; |
| 604 | } |
| 605 | |
| 606 | offset &= ~0x3; /* 4-bytes align */ |
| 607 | if (offset >= limit) { |
| 608 | xhci_err(xhci, "reg's offset overrun!\n"); |
| 609 | return; |
| 610 | } |
| 611 | old_val = readl(base + offset); |
| 612 | writel(value, base + offset); |
| 613 | xhci_info(xhci, "0x%8.8x : 0x%8.8x --> 0x%8.8x\n", offset, old_val, |
| 614 | readl(base + offset)); |
| 615 | } |
| 616 | |
| 617 | static void read_single_reg(struct xhci_hcd_mtk *mtk, |
| 618 | void __iomem *base, u32 offset, u32 limit) |
| 619 | { |
| 620 | struct usb_hcd *hcd = mtk->hcd; |
| 621 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 622 | u32 value; |
| 623 | |
| 624 | offset &= ~0x3; /* 4-bytes align */ |
| 625 | if (offset >= limit) { |
| 626 | xhci_err(xhci, "reg's offset overrun!\n"); |
| 627 | return; |
| 628 | } |
| 629 | value = readl(base + offset); |
| 630 | xhci_err(xhci, "0x%8.8x : 0x%8.8x\n", offset, value); |
| 631 | } |
| 632 | |
| 633 | static void read_multi_regs(struct xhci_hcd_mtk *mtk, |
| 634 | void __iomem *base, u32 offset, u32 len, u32 limit) |
| 635 | { |
| 636 | struct usb_hcd *hcd = mtk->hcd; |
| 637 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 638 | int i; |
| 639 | |
| 640 | /* at least 4 ints */ |
| 641 | offset &= ~0xF; |
| 642 | len = (len + 0x3) & ~0x3; |
| 643 | |
| 644 | if (offset + len > limit) { |
| 645 | xhci_err(xhci, "reg's offset overrun!\n"); |
| 646 | return; |
| 647 | } |
| 648 | |
| 649 | len >>= 2; |
| 650 | xhci_info(xhci, "read regs [%#x, %#x)\n", offset, offset + (len << 4)); |
| 651 | for (i = 0; i < len; i++) { |
| 652 | xhci_err(xhci, "0x%8.8x : 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x\n", |
| 653 | offset, readl(base + offset), |
| 654 | readl(base + offset + 0x4), |
| 655 | readl(base + offset + 0x8), |
| 656 | readl(base + offset + 0xc)); |
| 657 | offset += 0x10; |
| 658 | } |
| 659 | } |
| 660 | |
| 661 | static void ssusb_read_regs(struct xhci_hcd_mtk *mtk, const char *buf) |
| 662 | { |
| 663 | struct usb_hcd *hcd = mtk->hcd; |
| 664 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 665 | void __iomem *base; |
| 666 | u32 offset = 0; |
| 667 | u32 len = 0; |
| 668 | u32 limit = 0; |
| 669 | u32 param; |
| 670 | |
| 671 | param = sscanf(buf, "%*s 0x%x 0x%x", &offset, &len); |
| 672 | xhci_info(xhci, "params-%d (offset: %#x, len: %#x)\n", |
| 673 | param, offset, len); |
| 674 | |
| 675 | base = get_reg_base_limit(mtk, buf, &limit); |
| 676 | if (!base || !param) { |
| 677 | xhci_err(xhci, "params are invalid!\n"); |
| 678 | return; |
| 679 | } |
| 680 | |
| 681 | if (param == 1) |
| 682 | read_single_reg(mtk, base, offset, limit); |
| 683 | else |
| 684 | read_multi_regs(mtk, base, offset, len, limit); |
| 685 | } |
| 686 | |
| 687 | static void ssusb_set_reg_bits(struct xhci_hcd_mtk *mtk, const char *buf) |
| 688 | { |
| 689 | struct usb_hcd *hcd = mtk->hcd; |
| 690 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 691 | void __iomem *base; |
| 692 | u32 offset = 0; |
| 693 | u32 bit_start = 0; |
| 694 | u32 mask = 0; |
| 695 | u32 value = 0; |
| 696 | u32 old_val = 0; |
| 697 | u32 new_val = 0; |
| 698 | u32 limit = 0; |
| 699 | u32 param; |
| 700 | |
| 701 | param = sscanf(buf, "%*s 0x%x %d 0x%x 0x%x", |
| 702 | &offset, &bit_start, &mask, &value); |
| 703 | xhci_info(xhci, "params-%d (offset:%#x,bit_start:%d,mask:%#x,value:%#x)\n", |
| 704 | param, offset, bit_start, mask, value); |
| 705 | |
| 706 | base = get_reg_base_limit(mtk, buf, &limit); |
| 707 | if (!base || (param != 4) || (bit_start > 32)) { |
| 708 | xhci_err(xhci, "params are invalid!\n"); |
| 709 | return; |
| 710 | } |
| 711 | |
| 712 | offset &= ~0x3; /* 4-bytes align */ |
| 713 | if (offset >= limit) { |
| 714 | xhci_err(xhci, "reg's offset overrun!\n"); |
| 715 | return; |
| 716 | } |
| 717 | old_val = readl(base + offset); |
| 718 | new_val = old_val; |
| 719 | new_val &= ~(mask << bit_start); |
| 720 | new_val |= (value << bit_start); |
| 721 | writel(new_val, base + offset); |
| 722 | xhci_info(xhci, "0x%8.8x : 0x%8.8x --> 0x%8.8x\n", offset, old_val, |
| 723 | readl(base + offset)); |
| 724 | } |
| 725 | |
| 726 | |
| 727 | static void ssusb_print_reg_bits(struct xhci_hcd_mtk *mtk, const char *buf) |
| 728 | { |
| 729 | struct usb_hcd *hcd = mtk->hcd; |
| 730 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 731 | void __iomem *base; |
| 732 | u32 offset = 0; |
| 733 | u32 bit_start = 0; |
| 734 | u32 mask = 0; |
| 735 | u32 old_val = 0; |
| 736 | u32 new_val = 0; |
| 737 | u32 limit = 0; |
| 738 | u32 param; |
| 739 | |
| 740 | param = sscanf(buf, "%*s 0x%x %d 0x%x", &offset, &bit_start, &mask); |
| 741 | xhci_info(xhci, "params-%d (offset: %#x, bit_start: %d, mask: %#x)\n", |
| 742 | param, offset, bit_start, mask); |
| 743 | |
| 744 | base = get_reg_base_limit(mtk, buf, &limit); |
| 745 | if (!base || (param != 3) || (bit_start > 32)) { |
| 746 | xhci_err(xhci, "params are invalid!\n"); |
| 747 | return; |
| 748 | } |
| 749 | |
| 750 | offset &= ~0x3; /* 4-bytes align */ |
| 751 | if (offset >= limit) { |
| 752 | xhci_err(xhci, "reg's offset overrun!\n"); |
| 753 | return; |
| 754 | } |
| 755 | |
| 756 | old_val = readl(base + offset); |
| 757 | new_val = old_val; |
| 758 | new_val >>= bit_start; |
| 759 | new_val &= mask; |
| 760 | xhci_info(xhci, "0x%8.8x : 0x%8.8x (0x%x)\n", offset, old_val, new_val); |
| 761 | } |
| 762 | |
| 763 | |
| 764 | static ssize_t |
| 765 | ssusb_reg_store(struct device *dev, struct device_attribute *attr, |
| 766 | const char *buf, size_t n) |
| 767 | { |
| 768 | struct xhci_hcd_mtk *mtk = dev_get_drvdata(dev); |
| 769 | struct usb_hcd *hcd = mtk->hcd; |
| 770 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 771 | |
| 772 | xhci_info(xhci, " cmd: %s\n", buf); |
| 773 | |
| 774 | switch (buf[0]) { |
| 775 | case 'w': |
| 776 | ssusb_write_reg(mtk, buf); |
| 777 | break; |
| 778 | case 'r': |
| 779 | ssusb_read_regs(mtk, buf); |
| 780 | break; |
| 781 | case 's': |
| 782 | ssusb_set_reg_bits(mtk, buf); |
| 783 | break; |
| 784 | case 'p': |
| 785 | ssusb_print_reg_bits(mtk, buf); |
| 786 | break; |
| 787 | default: |
| 788 | xhci_err(xhci, "No such cmd\n"); |
| 789 | } |
| 790 | |
| 791 | return n; |
| 792 | } |
| 793 | |
| 794 | static DEVICE_ATTR(reg, 0664, ssusb_reg_show, ssusb_reg_store); |
| 795 | |
| 796 | static struct device_attribute *mu3h_hqa_attr_list[] = { |
| 797 | &dev_attr_hqa, |
| 798 | &dev_attr_reg, |
| 799 | }; |
| 800 | |
| 801 | static void ssusb_remap_ip_regs(struct device *dev) |
| 802 | { |
| 803 | struct xhci_hcd_mtk *mtk = dev_get_drvdata(dev); |
| 804 | struct usb_hcd *hcd = mtk->hcd; |
| 805 | struct xhci_hcd *xhci = hcd_to_xhci(hcd); |
| 806 | |
| 807 | mtk->ip_base = ioremap(hcd->rsrc_start, 0xb00000);//0xa30000 |
| 808 | if (!mtk->ip_base) |
| 809 | xhci_err(xhci, "could not ioremap regs\n"); |
| 810 | } |
| 811 | |
| 812 | int mu3h_hqa_create_attr(struct device *dev) |
| 813 | { |
| 814 | int idx, err = 0; |
| 815 | int num = ARRAY_SIZE(mu3h_hqa_attr_list); |
| 816 | |
| 817 | if (dev == NULL) |
| 818 | return -EINVAL; |
| 819 | |
| 820 | ssusb_remap_ip_regs(dev); |
| 821 | |
| 822 | for (idx = 0; idx < num; idx++) { |
| 823 | err = device_create_file(dev, mu3h_hqa_attr_list[idx]); |
| 824 | if (err) |
| 825 | break; |
| 826 | } |
| 827 | |
| 828 | return err; |
| 829 | } |
| 830 | |
| 831 | void mu3h_hqa_remove_attr(struct device *dev) |
| 832 | { |
| 833 | int idx; |
| 834 | int num = ARRAY_SIZE(mu3h_hqa_attr_list); |
| 835 | |
| 836 | for (idx = 0; idx < num; idx++) |
| 837 | device_remove_file(dev, mu3h_hqa_attr_list[idx]); |
| 838 | } |