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qemu / qemu / d044be3714db9c3750c430a2bb1be74beee6fd27
commitd044be3714db9c3750c430a2bb1be74beee6fd27[log] [tgz]
authorHans de Goede <hdegoede@redhat.com>Mon May 07 09:24:35 2012 +0200
committermalc <av1474@comtv.ru>Mon May 07 16:31:40 2012 +0400
treef401d0f9673f9fa1dce107a7901ece3b478798b5
parenta4e652ebc0b2c473f2ded93e8528095da8251c6a [diff]
hw/ac97: Make a bunch of mixer registers read only

The Linux ac97 driver tries to see if optional things like video input
volume control are available in 2 ways:
1) See if the mute bit is set after reset, if it is no further tests are done
2) If the mute bit is not set it does a write/read test of the mute bit

This patch changes our ac97 to conform to what the Linux driver expects, it
initializes registers for things which we don't emulate to 0 (so the mute bit
is not set) and makes them read only.

This causes Linux to now longer show the following (functionless)
controls in alsamixer:

Master Mono vol + mute
3d Control toggle
PCM out pre / post 3d select
Surround toggle
CD vol + mute
Mic vol + mute
Mic boost toggle
Mic mic1 / mic2 select
Video vol + mute
Phone vol + mute
Beep mono vol + mute
Aux vol + mute
Mono "output mic" / "mix" select
Sigmatel 4 speaker stereo toggle
Sigmatel ADC 6Db att toggle
Sigmatel DAC 6Db att toggle

This patch was also tested with a Windows XP guest and there it also makes
a number of functionless mixer controls go away.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
1 file changed
tree: f401d0f9673f9fa1dce107a7901ece3b478798b5
  1. audio/
  2. block/
  3. bsd-user/
  4. default-configs/
  5. docs/
  6. fpu/
  7. fsdev/
  8. gdb-xml/
  9. hw/
  10. include/
  11. libcacard/
  12. linux-headers/
  13. linux-user/
  14. net/
  15. pc-bios/
  16. qapi/
  17. qga/
  18. QMP/
  19. qom/
  20. roms/
  21. scripts/
  22. slirp/
  23. sysconfigs/
  24. target-alpha/
  25. target-arm/
  26. target-cris/
  27. target-i386/
  28. target-lm32/
  29. target-m68k/
  30. target-microblaze/
  31. target-mips/
  32. target-ppc/
  33. target-s390x/
  34. target-sh4/
  35. target-sparc/
  36. target-unicore32/
  37. target-xtensa/
  38. tcg/
  39. tests/
  40. trace/
  41. ui/
  42. .gitignore
  43. .gitmodules
  44. .mailmap
  45. a.out.h
  46. acl.c
  47. acl.h
  48. aes.c
  49. aes.h
  50. aio.c
  51. alpha-dis.c
  52. alpha.ld
  53. arch_init.c
  54. arch_init.h
  55. arm-dis.c
  56. arm-semi.c
  57. arm.ld
  58. async.c
  59. balloon.c
  60. balloon.h
  61. bitmap.c
  62. bitmap.h
  63. bitops.c
  64. bitops.h
  65. block-migration.c
  66. block-migration.h
  67. block.c
  68. block.h
  69. block_int.h
  70. blockdev.c
  71. blockdev.h
  72. bswap.h
  73. bt-host.c
  74. bt-host.h
  75. bt-vhci.c
  76. buffered_file.c
  77. buffered_file.h
  78. cache-utils.c
  79. cache-utils.h
  80. Changelog
  81. cmd.c
  82. cmd.h
  83. CODING_STYLE
  84. compatfd.c
  85. compatfd.h
  86. compiler.h
  87. config.h
  88. configure
  89. console.c
  90. console.h
  91. COPYING
  92. COPYING.LIB
  93. coroutine-gthread.c
  94. coroutine-sigaltstack.c
  95. coroutine-ucontext.c
  96. coroutine-win32.c
  97. cpu-all.h
  98. cpu-common.h
  99. cpu-defs.h
  100. cpu-exec.c
  101. cpus.c
  102. cpus.h
  103. cputlb.c
  104. cputlb.h
  105. cris-dis.c
  106. cursor.c
  107. cursor_hidden.xpm
  108. cursor_left_ptr.xpm
  109. cutils.c
  110. def-helper.h
  111. device_tree.c
  112. device_tree.h
  113. dis-asm.h
  114. disas.c
  115. disas.h
  116. dma-helpers.c
  117. dma.h
  118. dyngen-exec.h
  119. elf.h
  120. envlist.c
  121. envlist.h
  122. error.c
  123. error.h
  124. error_int.h
  125. event_notifier.c
  126. event_notifier.h
  127. exec-all.h
  128. exec-memory.h
  129. exec-obsolete.h
  130. exec.c
  131. gdbstub.c
  132. gdbstub.h
  133. gen-icount.h
  134. HACKING
  135. hmp-commands.hx
  136. hmp.c
  137. hmp.h
  138. host-utils.c
  139. host-utils.h
  140. hppa-dis.c
  141. hppa.ld
  142. i386-dis.c
  143. i386.ld
  144. ia64-dis.c
  145. ia64.ld
  146. input.c
  147. int128.h
  148. iohandler.c
  149. ioport-user.c
  150. ioport.c
  151. ioport.h
  152. iorange.h
  153. iov.c
  154. iov.h
  155. json-lexer.c
  156. json-lexer.h
  157. json-parser.c
  158. json-parser.h
  159. json-streamer.c
  160. json-streamer.h
  161. kvm-all.c
  162. kvm-stub.c
  163. kvm.h
  164. libfdt_env.h
  165. LICENSE
  166. linux-aio.c
  167. lm32-dis.c
  168. m68k-dis.c
  169. m68k-semi.c
  170. m68k.ld
  171. main-loop.c
  172. main-loop.h
  173. MAINTAINERS
  174. Makefile
  175. Makefile.dis
  176. Makefile.hw
  177. Makefile.objs
  178. Makefile.target
  179. Makefile.user
  180. memory.c
  181. memory.h
  182. microblaze-dis.c
  183. migration-exec.c
  184. migration-fd.c
  185. migration-tcp.c
  186. migration-unix.c
  187. migration.c
  188. migration.h
  189. mips-dis.c
  190. mips.ld
  191. module.c
  192. module.h
  193. monitor.c
  194. monitor.h
  195. nbd.c
  196. nbd.h
  197. net.c
  198. net.h
  199. notify.c
  200. notify.h
  201. os-posix.c
  202. os-win32.c
  203. osdep.c
  204. osdep.h
  205. oslib-posix.c
  206. oslib-win32.c
  207. path.c
  208. pci-ids.txt
  209. pflib.c
  210. pflib.h
  211. poison.h
  212. posix-aio-compat.c
  213. ppc-dis.c
  214. ppc.ld
  215. ppc64.ld
  216. qapi-schema-guest.json
  217. qapi-schema-test.json
  218. qapi-schema.json
  219. qbool.c
  220. qbool.h
  221. qdict-test-data.txt
  222. qdict.c
  223. qdict.h
  224. qemu-aio.h
  225. qemu-barrier.h
  226. qemu-bridge-helper.c
  227. qemu-char.c
  228. qemu-char.h
  229. qemu-common.h
  230. qemu-config.c
  231. qemu-config.h
  232. qemu-coroutine-int.h
  233. qemu-coroutine-io.c
  234. qemu-coroutine-lock.c
  235. qemu-coroutine-sleep.c
  236. qemu-coroutine.c
  237. qemu-coroutine.h
  238. qemu-doc.texi
  239. qemu-error.c
  240. qemu-error.h
  241. qemu-file.h
  242. qemu-ga.c
  243. qemu-img-cmds.hx
  244. qemu-img.c
  245. qemu-img.texi
  246. qemu-io.c
  247. qemu-lock.h
  248. qemu-log.h
  249. qemu-nbd.c
  250. qemu-nbd.texi
  251. qemu-objects.h
  252. qemu-option.c
  253. qemu-option.h
  254. qemu-options-wrapper.h
  255. qemu-options.h
  256. qemu-options.hx
  257. qemu-os-posix.h
  258. qemu-os-win32.h
  259. qemu-progress.c
  260. qemu-queue.h
  261. qemu-sockets.c
  262. qemu-tech.texi
  263. qemu-thread-posix.c
  264. qemu-thread-posix.h
  265. qemu-thread-win32.c
  266. qemu-thread-win32.h
  267. qemu-thread.h
  268. qemu-timer-common.c
  269. qemu-timer.c
  270. qemu-timer.h
  271. qemu-tls.h
  272. qemu-tool.c
  273. qemu-user.c
  274. qemu-x509.h
  275. qemu-xattr.h
  276. qemu.sasl
  277. qemu_socket.h
  278. qerror.c
  279. qerror.h
  280. qfloat.c
  281. qfloat.h
  282. qint.c
  283. qint.h
  284. qjson.c
  285. qjson.h
  286. qlist.c
  287. qlist.h
  288. qmp-commands.hx
  289. qmp.c
  290. qobject.h
  291. qstring.c
  292. qstring.h
  293. qtest.c
  294. qtest.h
  295. range.h
  296. readline.c
  297. readline.h
  298. README
  299. rules.mak
  300. s390-dis.c
  301. s390.ld
  302. savevm.c
  303. sh4-dis.c
  304. softmmu-semi.h
  305. softmmu_defs.h
  306. softmmu_exec.h
  307. softmmu_header.h
  308. softmmu_template.h
  309. sparc-dis.c
  310. sparc.ld
  311. sparc64.ld
  312. spice-qemu-char.c
  313. sysemu.h
  314. targphys.h
  315. tcg-runtime.c
  316. tci-dis.c
  317. tci.c
  318. thunk.c
  319. thunk.h
  320. TODO
  321. trace-events
  322. translate-all.c
  323. uboot_image.h
  324. user-exec.c
  325. VERSION
  326. version.rc
  327. vgafont.h
  328. vl.c
  329. vmstate.h
  330. x86_64.ld
  331. xen-all.c
  332. xen-mapcache.c
  333. xen-mapcache.h
  334. xen-stub.c
  335. xtensa-semi.c