162306a36Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ciconfig VIDEO_IVTV 362306a36Sopenharmony_ci tristate "Conexant cx23416/cx23415 MPEG encoder/decoder support" 462306a36Sopenharmony_ci depends on VIDEO_DEV && PCI && I2C 562306a36Sopenharmony_ci select I2C_ALGOBIT 662306a36Sopenharmony_ci depends on RC_CORE 762306a36Sopenharmony_ci select VIDEO_TUNER 862306a36Sopenharmony_ci select VIDEO_TVEEPROM 962306a36Sopenharmony_ci select VIDEO_CX2341X 1062306a36Sopenharmony_ci select VIDEO_CX25840 1162306a36Sopenharmony_ci select VIDEO_MSP3400 1262306a36Sopenharmony_ci select VIDEO_SAA711X 1362306a36Sopenharmony_ci select VIDEO_SAA717X 1462306a36Sopenharmony_ci select VIDEO_SAA7127 1562306a36Sopenharmony_ci select VIDEO_CS53L32A 1662306a36Sopenharmony_ci select VIDEO_M52790 1762306a36Sopenharmony_ci select VIDEO_WM8775 1862306a36Sopenharmony_ci select VIDEO_WM8739 1962306a36Sopenharmony_ci select VIDEO_VP27SMPX 2062306a36Sopenharmony_ci select VIDEO_UPD64031A 2162306a36Sopenharmony_ci select VIDEO_UPD64083 2262306a36Sopenharmony_ci help 2362306a36Sopenharmony_ci This is a video4linux driver for Conexant cx23416 or cx23415 based 2462306a36Sopenharmony_ci PCI personal video recorder devices. 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ci This is used in devices such as the Hauppauge PVR-150/250/350/500 2762306a36Sopenharmony_ci cards. 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_ci To compile this driver as a module, choose M here: the 3062306a36Sopenharmony_ci module will be called ivtv. 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ciconfig VIDEO_IVTV_ALSA 3362306a36Sopenharmony_ci tristate "Conexant cx23415/cx23416 ALSA interface for PCM audio capture" 3462306a36Sopenharmony_ci depends on VIDEO_IVTV && SND 3562306a36Sopenharmony_ci select SND_PCM 3662306a36Sopenharmony_ci help 3762306a36Sopenharmony_ci This driver provides an ALSA interface as another method for user 3862306a36Sopenharmony_ci applications to obtain PCM audio data from Conexant cx23415/cx23416 3962306a36Sopenharmony_ci based PCI TV cards supported by the ivtv driver. 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ci The ALSA interface has much wider use in user applications performing 4262306a36Sopenharmony_ci PCM audio capture, than the V4L2 "/dev/video24" PCM audio interface 4362306a36Sopenharmony_ci provided by the main ivtv driver. 4462306a36Sopenharmony_ci 4562306a36Sopenharmony_ci To compile this driver as a module, choose M here: the 4662306a36Sopenharmony_ci module will be called ivtv-alsa. 4762306a36Sopenharmony_ci 4862306a36Sopenharmony_ciconfig VIDEO_FB_IVTV 4962306a36Sopenharmony_ci tristate "Conexant cx23415 framebuffer support" 5062306a36Sopenharmony_ci depends on VIDEO_IVTV && FB 5162306a36Sopenharmony_ci select FB_CFB_FILLRECT 5262306a36Sopenharmony_ci select FB_CFB_COPYAREA 5362306a36Sopenharmony_ci select FB_CFB_IMAGEBLIT 5462306a36Sopenharmony_ci help 5562306a36Sopenharmony_ci This is a framebuffer driver for the Conexant cx23415 MPEG 5662306a36Sopenharmony_ci encoder/decoder. 5762306a36Sopenharmony_ci 5862306a36Sopenharmony_ci This is used in the Hauppauge PVR-350 card. 5962306a36Sopenharmony_ci 6062306a36Sopenharmony_ci To compile this driver as a module, choose M here: the 6162306a36Sopenharmony_ci module will be called ivtvfb. 6262306a36Sopenharmony_ci 6362306a36Sopenharmony_ciconfig VIDEO_FB_IVTV_FORCE_PAT 6462306a36Sopenharmony_ci bool "force cx23415 framebuffer init with x86 PAT enabled" 6562306a36Sopenharmony_ci depends on VIDEO_FB_IVTV && X86_PAT 6662306a36Sopenharmony_ci help 6762306a36Sopenharmony_ci With PAT enabled, the cx23415 framebuffer driver does not 6862306a36Sopenharmony_ci utilize write-combined caching on the framebuffer memory. 6962306a36Sopenharmony_ci For this reason, the driver will by default disable itself 7062306a36Sopenharmony_ci when initializied on a kernel with PAT enabled (i.e. not 7162306a36Sopenharmony_ci using the nopat kernel parameter). 7262306a36Sopenharmony_ci 7362306a36Sopenharmony_ci The driver is not easily upgradable to the PAT-aware 7462306a36Sopenharmony_ci ioremap_wc() API since the firmware hides the address 7562306a36Sopenharmony_ci ranges that should be marked write-combined from the driver. 7662306a36Sopenharmony_ci 7762306a36Sopenharmony_ci With this setting enabled, the framebuffer will initialize on 7862306a36Sopenharmony_ci PAT-enabled systems but the framebuffer memory will be uncached. 7962306a36Sopenharmony_ci 8062306a36Sopenharmony_ci If unsure, say N. 81