PD Buddy Sink Firmware
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  1. /*
  2. * PD Buddy - USB Power Delivery for everyone
  3. * Copyright (C) 2017 Clayton G. Hobbs <clay@lakeserv.net>
  4. *
  5. * This program is free software: you can redistribute it and/or modify
  6. * it under the terms of the GNU General Public License as published by
  7. * the Free Software Foundation, either version 3 of the License, or
  8. * (at your option) any later version.
  9. *
  10. * This program is distributed in the hope that it will be useful,
  11. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13. * GNU General Public License for more details.
  14. *
  15. * You should have received a copy of the GNU General Public License
  16. * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17. */
  18. #ifndef PDB_PD_H
  19. #define PDB_PD_H
  20. #include <ch.h>
  21. /*
  22. * Macros for working with USB Power Delivery messages.
  23. *
  24. * This file is mostly written from the PD Rev. 2.0 spec, but the header is
  25. * written from the Rev. 3.0 spec.
  26. */
  27. /*
  28. * PD Header
  29. */
  30. #define PD_HDR_MSGTYPE_SHIFT 0
  31. #define PD_HDR_MSGTYPE (0x1F << PD_HDR_MSGTYPE_SHIFT)
  32. #define PD_HDR_DATAROLE_SHIFT 5
  33. #define PD_HDR_DATAROLE (0x1 << PD_HDR_DATAROLE_SHIFT)
  34. #define PD_HDR_SPECREV_SHIFT 6
  35. #define PD_HDR_SPECREV (0x3 << PD_HDR_SPECREV_SHIFT)
  36. #define PD_HDR_POWERROLE_SHIFT 8
  37. #define PD_HDR_POWERROLE (1 << PD_HDR_POWERROLE_SHIFT)
  38. #define PD_HDR_MESSAGEID_SHIFT 9
  39. #define PD_HDR_MESSAGEID (0x7 << PD_HDR_MESSAGEID_SHIFT)
  40. #define PD_HDR_NUMOBJ_SHIFT 12
  41. #define PD_HDR_NUMOBJ (0x7 << PD_HDR_NUMOBJ_SHIFT)
  42. #define PD_HDR_EXT (1 << 15)
  43. /* Message types */
  44. #define PD_MSGTYPE_GET(msg) (((msg)->hdr & PD_HDR_MSGTYPE) >> PD_HDR_MSGTYPE_SHIFT)
  45. /* Control Message */
  46. #define PD_MSGTYPE_GOODCRC 0x01
  47. #define PD_MSGTYPE_GOTOMIN 0x02
  48. #define PD_MSGTYPE_ACCEPT 0x03
  49. #define PD_MSGTYPE_REJECT 0x04
  50. #define PD_MSGTYPE_PING 0x05
  51. #define PD_MSGTYPE_PS_RDY 0x06
  52. #define PD_MSGTYPE_GET_SOURCE_CAP 0x07
  53. #define PD_MSGTYPE_GET_SINK_CAP 0x08
  54. #define PD_MSGTYPE_DR_SWAP 0x09
  55. #define PD_MSGTYPE_PR_SWAP 0x0A
  56. #define PD_MSGTYPE_VCONN_SWAP 0x0B
  57. #define PD_MSGTYPE_WAIT 0x0C
  58. #define PD_MSGTYPE_SOFT_RESET 0x0D
  59. #define PD_MSGTYPE_NOT_SUPPORTED 0x10
  60. #define PD_MSGTYPE_GET_SOURCE_CAP_EXTENDED 0x11
  61. #define PD_MSGTYPE_GET_STATUS 0x12
  62. #define PD_MSGTYPE_FR_SWAP 0x13
  63. #define PD_MSGTYPE_GET_PPS_STATUS 0x14
  64. #define PD_MSGTYPE_GET_COUNTRY_CODES 0x15
  65. /* Data Message */
  66. #define PD_MSGTYPE_SOURCE_CAPABILITIES 0x01
  67. #define PD_MSGTYPE_REQUEST 0x02
  68. #define PD_MSGTYPE_BIST 0x03
  69. #define PD_MSGTYPE_SINK_CAPABILITIES 0x04
  70. #define PD_MSGTYPE_BATTERY_STATUS 0x05
  71. #define PD_MSGTYPE_ALERT 0x06
  72. #define PD_MSGTYPE_GET_COUNTRY_INFO 0x07
  73. #define PD_MSGTYPE_VENDOR_DEFINED 0x0F
  74. /* Extended Message */
  75. #define PD_MSGTYPE_SOURCE_CAPABILITIES_EXTENDED 0x01
  76. #define PD_MSGTYPE_STATUS 0x02
  77. #define PD_MSGTYPE_GET_BATTERY_CAP 0x03
  78. #define PD_MSGTYPE_GET_BATTERY_STATUS 0x04
  79. #define PD_MSGTYPE_BATTERY_CAPABILITIES 0x05
  80. #define PD_MSGTYPE_GET_MANUFACTURER_INFO 0x06
  81. #define PD_MSGTYPE_MANUFACTURER_INFO 0x07
  82. #define PD_MSGTYPE_SECURITY_REQUEST 0x08
  83. #define PD_MSGTYPE_SECURITY_RESPONSE 0x09
  84. #define PD_MSGTYPE_FIRMWARE_UPDATE_REQUEST 0x0A
  85. #define PD_MSGTYPE_FIRMWARE_UPDATE_RESPONSE 0x0B
  86. #define PD_MSGTYPE_PPS_STATUS 0x0C
  87. #define PD_MSGTYPE_COUNTRY_INFO 0x0D
  88. #define PD_MSGTYPE_COUNTRY_CODES 0x0E
  89. /* Data roles */
  90. #define PD_DATAROLE_UFP (0x0 << PD_HDR_DATAROLE_SHIFT)
  91. #define PD_DATAROLE_DFP (0x1 << PD_HDR_DATAROLE_SHIFT)
  92. /* Specification revisions */
  93. #define PD_SPECREV_1_0 (0x0 << PD_HDR_SPECREV_SHIFT)
  94. #define PD_SPECREV_2_0 (0x1 << PD_HDR_SPECREV_SHIFT)
  95. #define PD_SPECREV_3_0 (0x2 << PD_HDR_SPECREV_SHIFT)
  96. /* Port power roles */
  97. #define PD_POWERROLE_SINK (0x0 << PD_HDR_POWERROLE_SHIFT)
  98. #define PD_POWERROLE_SOURCE (0x1 << PD_HDR_POWERROLE_SHIFT)
  99. /* Message ID */
  100. #define PD_MESSAGEID_GET(msg) (((msg)->hdr & PD_HDR_MESSAGEID) >> PD_HDR_MESSAGEID_SHIFT)
  101. /* Number of data objects */
  102. #define PD_NUMOBJ(n) (((n) << PD_HDR_NUMOBJ_SHIFT) & PD_HDR_NUMOBJ)
  103. #define PD_NUMOBJ_GET(msg) (((msg)->hdr & PD_HDR_NUMOBJ) >> PD_HDR_NUMOBJ_SHIFT)
  104. /*
  105. * PD Extended Message Header
  106. */
  107. #define PD_EXTHDR_DATA_SIZE_SHIFT 0
  108. #define PD_EXTHDR_DATA_SIZE (0x1FF << PD_EXTHDR_DATA_SIZE_SHIFT)
  109. #define PD_EXTHDR_REQUEST_CHUNK_SHIFT 10
  110. #define PD_EXTHDR_REQUEST_CHUNK (1 << PD_EXTHDR_REQUEST_CHUNK_SHIFT)
  111. #define PD_EXTHDR_CHUNK_NUMBER_SHIFT 11
  112. #define PD_EXTHDR_CHUNK_NUMBER (0xF << PD_EXTHDR_CHUNK_NUMBER_SHIFT)
  113. #define PD_EXTHDR_CHUNKED_SHIFT 15
  114. #define PD_EXTHDR_CHUNKED (1 << PD_EXTHDR_CHUNKED_SHIFT)
  115. /* Data size */
  116. #define PD_DATA_SIZE(n) (((n) << PD_EXTHDR_DATA_SIZE_SHIFT) & PD_EXTHDR_DATA_SIZE)
  117. #define PD_DATA_SIZE_GET(msg) (((msg)->exthdr & PD_EXTHDR_DATA_SIZE) >> PD_EXTHDR_DATA_SIZE_SHIFT)
  118. /* Chunk number */
  119. #define PD_CHUNK_NUMBER(n) (((n) << PD_EXTHDR_CHUNK_NUMBER_SHIFT) & PD_EXTHDR_CHUNK_NUMBER)
  120. #define PD_CHUNK_NUMBER_GET(msg) (((msg)->exthdr & PD_EXTHDR_CHUNK_NUMBER) >> PD_EXTHDR_CHUNK_NUMBER_SHIFT)
  121. /*
  122. * PD Power Data Object
  123. */
  124. #define PD_PDO_TYPE_SHIFT 30
  125. #define PD_PDO_TYPE (0x3 << PD_PDO_TYPE_SHIFT)
  126. /* PDO types */
  127. #define PD_PDO_TYPE_FIXED ((unsigned) (0x0 << PD_PDO_TYPE_SHIFT))
  128. #define PD_PDO_TYPE_BATTERY ((unsigned) (0x1 << PD_PDO_TYPE_SHIFT))
  129. #define PD_PDO_TYPE_VARIABLE ((unsigned) (0x2 << PD_PDO_TYPE_SHIFT))
  130. #define PD_PDO_TYPE_AUGMENTED ((unsigned) (0x3 << PD_PDO_TYPE_SHIFT))
  131. #define PD_APDO_TYPE_SHIFT 28
  132. #define PD_APDO_TYPE (0x3 << PD_APDO_TYPE_SHIFT)
  133. /* APDO types */
  134. #define PD_APDO_TYPE_PPS (0x0 << PD_APDO_TYPE_SHIFT)
  135. /* PD Source Fixed PDO */
  136. #define PD_PDO_SRC_FIXED_DUAL_ROLE_PWR_SHIFT 29
  137. #define PD_PDO_SRC_FIXED_DUAL_ROLE_PWR (1 << PD_PDO_SRC_FIXED_DUAL_ROLE_PWR_SHIFT)
  138. #define PD_PDO_SRC_FIXED_USB_SUSPEND_SHIFT 28
  139. #define PD_PDO_SRC_FIXED_USB_SUSPEND (1 << PD_PDO_SRC_FIXED_USB_SUSPEND_SHIFT)
  140. #define PD_PDO_SRC_FIXED_UNCONSTRAINED_SHIFT 27
  141. #define PD_PDO_SRC_FIXED_UNCONSTRAINED (1 << PD_PDO_SRC_FIXED_UNCONSTRAINED_SHIFT)
  142. #define PD_PDO_SRC_FIXED_USB_COMMS_SHIFT 26
  143. #define PD_PDO_SRC_FIXED_USB_COMMS (1 << PD_PDO_SRC_FIXED_USB_COMMS_SHIFT)
  144. #define PD_PDO_SRC_FIXED_DUAL_ROLE_DATA_SHIFT 25
  145. #define PD_PDO_SRC_FIXED_DUAL_ROLE_DATA (1 << PD_PDO_SRC_FIXED_DUAL_ROLE_DATA_SHIFT)
  146. #define PD_PDO_SRC_FIXED_PEAK_CURRENT_SHIFT 20
  147. #define PD_PDO_SRC_FIXED_PEAK_CURRENT (0x3 << PD_PDO_SRC_FIXED_PEAK_CURRENT_SHIFT)
  148. #define PD_PDO_SRC_FIXED_VOLTAGE_SHIFT 10
  149. #define PD_PDO_SRC_FIXED_VOLTAGE (0x3FF << PD_PDO_SRC_FIXED_VOLTAGE_SHIFT)
  150. #define PD_PDO_SRC_FIXED_CURRENT_SHIFT 0
  151. #define PD_PDO_SRC_FIXED_CURRENT (0x3FF << PD_PDO_SRC_FIXED_CURRENT_SHIFT)
  152. /* PD Source Fixed PDO current */
  153. #define PD_PDO_SRC_FIXED_CURRENT_GET(msg, i) (((msg)->obj[(i)] & PD_PDO_SRC_FIXED_CURRENT) >> PD_PDO_SRC_FIXED_CURRENT_SHIFT)
  154. /* PD Source Fixed PDO voltage */
  155. #define PD_PDO_SRC_FIXED_VOLTAGE_GET(msg, i) (((msg)->obj[(i)] & PD_PDO_SRC_FIXED_VOLTAGE) >> PD_PDO_SRC_FIXED_VOLTAGE_SHIFT)
  156. /* PD Source Programmable Power Supply APDO */
  157. #define PD_APDO_SRC_PPS_MAX_VOLTAGE_SHIFT 17
  158. #define PD_APDO_SRC_PPS_MAX_VOLTAGE (0xFF << PD_APDO_SRC_PPS_MAX_VOLTAGE_SHIFT)
  159. #define PD_APDO_SRC_PPS_MIN_VOLTAGE_SHIFT 8
  160. #define PD_APDO_SRC_PPS_MIN_VOLTAGE (0xFF << PD_APDO_SRC_PPS_MIN_VOLTAGE_SHIFT)
  161. #define PD_APDO_SRC_PPS_CURRENT_SHIFT 0
  162. #define PD_APDO_SRC_PPS_CURRENT (0x7F << PD_APDO_SRC_PPS_CURRENT_SHIFT)
  163. /* PD Source Programmable Power Supply APDO voltages */
  164. #define PD_APDO_SRC_PPS_MAX_VOLTAGE_GET(msg, i) (((msg)->obj[(i)] & PD_APDO_SRC_PPS_MAX_VOLTAGE) >> PD_APDO_SRC_PPS_MAX_VOLTAGE_SHIFT)
  165. #define PD_APDO_SRC_PPS_MIN_VOLTAGE_GET(msg, i) (((msg)->obj[(i)] & PD_APDO_SRC_PPS_MIN_VOLTAGE) >> PD_APDO_SRC_PPS_MIN_VOLTAGE_SHIFT)
  166. /* PD Source Programmable Power Supply APDO current */
  167. #define PD_APDO_SRC_PPS_CURRENT_GET(msg, i) (((msg)->obj[(i)] & PD_APDO_SRC_PPS_CURRENT) >> PD_APDO_SRC_PPS_CURRENT_SHIFT)
  168. /* TODO: other types of source PDO */
  169. /* PD Sink Fixed PDO */
  170. #define PD_PDO_SNK_FIXED_DUAL_ROLE_PWR_SHIFT 29
  171. #define PD_PDO_SNK_FIXED_DUAL_ROLE_PWR (1 << PD_PDO_SNK_FIXED_DUAL_ROLE_PWR_SHIFT)
  172. #define PD_PDO_SNK_FIXED_HIGHER_CAP_SHIFT 28
  173. #define PD_PDO_SNK_FIXED_HIGHER_CAP (1 << PD_PDO_SNK_FIXED_HIGHER_CAP_SHIFT)
  174. #define PD_PDO_SNK_FIXED_UNCONSTRAINED_SHIFT 27
  175. #define PD_PDO_SNK_FIXED_UNCONSTRAINED (1 << PD_PDO_SNK_FIXED_UNCONSTRAINED_SHIFT)
  176. #define PD_PDO_SNK_FIXED_USB_COMMS_SHIFT 26
  177. #define PD_PDO_SNK_FIXED_USB_COMMS (1 << PD_PDO_SNK_FIXED_USB_COMMS_SHIFT)
  178. #define PD_PDO_SNK_FIXED_DUAL_ROLE_DATA_SHIFT 25
  179. #define PD_PDO_SNK_FIXED_DUAL_ROLE_DATA (1 << PD_PDO_SNK_FIXED_DUAL_ROLE_DATA_SHIFT)
  180. #define PD_PDO_SNK_FIXED_VOLTAGE_SHIFT 10
  181. #define PD_PDO_SNK_FIXED_VOLTAGE (0x3FF << PD_PDO_SNK_FIXED_VOLTAGE_SHIFT)
  182. #define PD_PDO_SNK_FIXED_CURRENT_SHIFT 0
  183. #define PD_PDO_SNK_FIXED_CURRENT (0x3FF << PD_PDO_SNK_FIXED_CURRENT_SHIFT)
  184. /* PD Sink Fixed PDO current */
  185. #define PD_PDO_SNK_FIXED_CURRENT_SET(i) (((i) << PD_PDO_SNK_FIXED_CURRENT_SHIFT) & PD_PDO_SNK_FIXED_CURRENT)
  186. /* PD Sink Fixed PDO voltage */
  187. #define PD_PDO_SNK_FIXED_VOLTAGE_SET(v) (((v) << PD_PDO_SNK_FIXED_VOLTAGE_SHIFT) & PD_PDO_SNK_FIXED_VOLTAGE)
  188. /* TODO: other types of sink PDO */
  189. /*
  190. * PD Request Data Object
  191. */
  192. #define PD_RDO_OBJPOS_SHIFT 28
  193. #define PD_RDO_OBJPOS (0x7 << PD_RDO_OBJPOS_SHIFT)
  194. #define PD_RDO_GIVEBACK_SHIFT 27
  195. #define PD_RDO_GIVEBACK (1 << PD_RDO_GIVEBACK_SHIFT)
  196. #define PD_RDO_CAP_MISMATCH_SHIFT 26
  197. #define PD_RDO_CAP_MISMATCH (1 << PD_RDO_CAP_MISMATCH_SHIFT)
  198. #define PD_RDO_USB_COMMS_SHIFT 25
  199. #define PD_RDO_USB_COMMS (1 << PD_RDO_USB_COMMS_SHIFT)
  200. #define PD_RDO_NO_USB_SUSPEND_SHIFT 24
  201. #define PD_RDO_NO_USB_SUSPEND (1 << PD_RDO_NO_USB_SUSPEND_SHIFT)
  202. #define PD_RDO_UNCHUNKED_EXT_MSG_SHIFT 23
  203. #define PD_RDO_UNCHUNKED_EXT_MSG (1 << PD_RDO_UNCHUNKED_EXT_MSG_SHIFT)
  204. #define PD_RDO_OBJPOS_SET(i) (((i) << PD_RDO_OBJPOS_SHIFT) & PD_RDO_OBJPOS)
  205. #define PD_RDO_OBJPOS_GET(msg) (((msg)->obj[0] & PD_RDO_OBJPOS) >> PD_RDO_OBJPOS_SHIFT)
  206. /* Fixed and Variable RDO, no GiveBack support */
  207. #define PD_RDO_FV_CURRENT_SHIFT 10
  208. #define PD_RDO_FV_CURRENT (0x3FF << PD_RDO_FV_CURRENT_SHIFT)
  209. #define PD_RDO_FV_MAX_CURRENT_SHIFT 0
  210. #define PD_RDO_FV_MAX_CURRENT (0x3FF << PD_RDO_FV_MAX_CURRENT_SHIFT)
  211. #define PD_RDO_FV_CURRENT_SET(i) (((i) << PD_RDO_FV_CURRENT_SHIFT) & PD_RDO_FV_CURRENT)
  212. #define PD_RDO_FV_MAX_CURRENT_SET(i) (((i) << PD_RDO_FV_MAX_CURRENT_SHIFT) & PD_RDO_FV_MAX_CURRENT)
  213. /* Fixed and Variable RDO with GiveBack support */
  214. #define PD_RDO_FV_MIN_CURRENT_SHIFT 0
  215. #define PD_RDO_FV_MIN_CURRENT (0x3FF << PD_RDO_FV_MIN_CURRENT_SHIFT)
  216. #define PD_RDO_FV_MIN_CURRENT_SET(i) (((i) << PD_RDO_FV_MIN_CURRENT_SHIFT) & PD_RDO_FV_MIN_CURRENT)
  217. /* TODO: Battery RDOs */
  218. /* Programmable RDO */
  219. #define PD_RDO_PROG_VOLTAGE_SHIFT 9
  220. #define PD_RDO_PROG_VOLTAGE (0x7FF << PD_RDO_PROG_VOLTAGE_SHIFT)
  221. #define PD_RDO_PROG_CURRENT_SHIFT 0
  222. #define PD_RDO_PROG_CURRENT (0x7F << PD_RDO_PROG_CURRENT_SHIFT)
  223. #define PD_RDO_PROG_VOLTAGE_SET(i) (((i) << PD_RDO_PROG_VOLTAGE_SHIFT) & PD_RDO_PROG_VOLTAGE)
  224. #define PD_RDO_PROG_CURRENT_SET(i) (((i) << PD_RDO_PROG_CURRENT_SHIFT) & PD_RDO_PROG_CURRENT)
  225. /*
  226. * Time values
  227. *
  228. * Where a range is specified, the middle of the range (rounded down to the
  229. * nearest millisecond) is used.
  230. */
  231. #define PD_T_CHUNKING_NOT_SUPPORTED MS2ST(45)
  232. #define PD_T_HARD_RESET_COMPLETE MS2ST(4)
  233. #define PD_T_PS_TRANSITION MS2ST(500)
  234. #define PD_T_SENDER_RESPONSE MS2ST(27)
  235. #define PD_T_SINK_REQUEST MS2ST(100)
  236. #define PD_T_TYPEC_SINK_WAIT_CAP MS2ST(465)
  237. #define PD_T_PPS_REQUEST S2ST(10)
  238. /* This is actually from Type-C, not Power Delivery, but who cares? */
  239. #define PD_T_PD_DEBOUNCE MS2ST(15)
  240. /*
  241. * Counter maximums
  242. */
  243. #define PD_N_HARD_RESET_COUNT 2
  244. /*
  245. * Value parameters
  246. */
  247. #define PD_MAX_EXT_MSG_LEN 260
  248. #define PD_MAX_EXT_MSG_CHUNK_LEN 26
  249. #define PD_MAX_EXT_MSG_LEGACY_LEN 26
  250. /*
  251. * Unit conversions
  252. *
  253. * V: volt
  254. * CV: centivolt
  255. * MV: millivolt
  256. * PRV: Programmable RDO voltage unit (20 mV)
  257. * PDV: Power Delivery voltage unit (50 mV)
  258. * PAV: PPS APDO voltage unit (100 mV)
  259. * A: ampere
  260. * CA: centiampere
  261. * MA: milliampere
  262. * PDI: Power Delivery current unit (10 mA)
  263. * PAI: PPS APDO current unit (50 mA)
  264. */
  265. #define PD_MV2PRV(mv) ((mv) / 20)
  266. #define PD_MV2PDV(mv) ((mv) / 50)
  267. #define PD_MV2PAV(mv) ((mv) / 100)
  268. #define PD_PRV2MV(prv) ((prv) * 20)
  269. #define PD_PDV2MV(pdv) ((pdv) * 50)
  270. #define PD_PAV2MV(pav) ((pav) * 100)
  271. #define PD_MA2PDI(ma) ((ma) / 10)
  272. #define PD_MA2PAI(ma) ((ma) / 50)
  273. #define PD_CA2PAI(ca) ((ca) / 5)
  274. #define PD_PDI2MA(pdi) ((pdi) * 10)
  275. #define PD_PAI2MA(pai) ((pai) * 50)
  276. #define PD_PAI2CA(pai) ((pai) * 5)
  277. /* Get portions of a voltage in more normal units */
  278. #define PD_MV_V(mv) ((mv) / 1000)
  279. #define PD_MV_MV(mv) ((mv) % 1000)
  280. #define PD_PDV_V(pdv) ((pdv) / 20)
  281. #define PD_PDV_CV(pdv) (5 * ((pdv) % 20))
  282. /* Get portions of a PD current in more normal units */
  283. #define PD_PDI_A(pdv) ((pdv) / 100)
  284. #define PD_PDI_CA(pdv) ((pdv) % 100)
  285. /*
  286. * Unit constants
  287. */
  288. #define PD_MV_MIN 0
  289. #define PD_MV_MAX 20000
  290. #define PD_PDV_MIN PD_MV2PDV(PD_MV_MIN)
  291. #define PD_PDV_MAX PD_MV2PDV(PD_MV_MAX)
  292. #define PD_MA_MIN 0
  293. #define PD_MA_MAX 5000
  294. #define PD_PDI_MIN PD_MA2PDI(PD_MA_MIN)
  295. #define PD_PDI_MAX PD_MA2PDI(PD_MA_MAX)
  296. #endif /* PDB_PD_H */