From 52f9028c84baea81230dc673b756552e8e90aecd Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 5 Apr 2007 11:21:06 +1000 Subject: Initial import of modesetting for intel driver in DRM --- linux-core/intel_modes.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 linux-core/intel_modes.c (limited to 'linux-core/intel_modes.c') diff --git a/linux-core/intel_modes.c b/linux-core/intel_modes.c new file mode 100644 index 00000000..0e56147d --- /dev/null +++ b/linux-core/intel_modes.c @@ -0,0 +1,49 @@ +#include +#include +#include "drmP.h" +#include "intel_drv.h" + +/** + * intel_ddc_probe + * + */ +bool intel_ddc_probe(struct drm_output *output) +{ + struct intel_output *intel_output = output->driver_private; + u8 out_buf[] = { 0x0, 0x0}; + u8 buf[2]; + int ret; + struct i2c_msg msgs[] = { + { + .addr = 0x50, + .flags = 0, + .len = 1, + .buf = out_buf, + }, + { + .addr = 0x50, + .flags = I2C_M_RD, + .len = 1, + .buf = buf, + } + }; + + ret = i2c_transfer(&intel_output->ddc_bus->adapter, msgs, 2); + if (ret == 2) + return true; + + return false; +} + +/** + * intel_ddc_get_modes - get modelist from monitor + * @output: DRM output device to use + * + * Fetch the EDID information from @output using the DDC bus. + */ +int intel_ddc_get_modes(struct drm_output *output) +{ + struct intel_output *intel_output = output->driver_private; + + return drm_add_edid_modes(output, &intel_output->ddc_bus->adapter); +} -- cgit v1.2.3