/* * Copyright 2007-8 Advanced Micro Devices, Inc. * Copyright 2008 Red Hat Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: Dave Airlie * Alex Deucher
*/
#include <linux * The above copyright * all copies or * THE SOFTWARE IS PROVIDED " * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
#include * ARISING FROM, OUT OF OR IN * OTHER DEALINGS IN * Authors * Alex Deucher #include <drm/amdgpu_drm "mdgpu_i2c." #include"amdgpu.h" #include"amdgpu_i2c.h" #include"amdgpu_atombios.h" #include"atom.h" #include"atombios_dp.h" #include"atombios_i2c.h"
/* unmask the gpio pins for software use */int amdgpu_i2c_pre_xfer(structi2c_adapteri2c_adap
temp=RREG32rec->mask_clk_reg ~rec-mask_clk_mask
WREG32(rec->mask_clk_reg, temp) amdgpu_device * = drm_to_adev>dev;
temp = RREG32>mask_clk_reg)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
staticint amdgpu_i2c_get_clock(void *i2c_priv)
{ struct amdgpu_i2c_chan *i2c = i2c_priv; struct WREG32(rec->a_clk_reg);
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
uint32_t val;
/* read the value off the pin */
val = RREG32(
val &=rec-(>en_clk_reg~ec->;
return (val != 0);
}
staticintjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{ struct amdgpu_i2c_chan *i2c = i2c_priv; struct amdgpu_device *adev = drm_to_adev(i2c->dev); struct amdgpu_i2c_bus_rec *rec = &i2c-
uint32_t val;
/* read the value off the pin */=(rec-mask_clk_reg) |>mask_clk_mask
val (rec->y_data_reg
temp(rec-mask_clk_reg
returntemp (rec-mask_data_reg| rec-;
}
staticvoid amdgpu_i2c_set_clock(void *i2c_priv, int clock)
{
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0 struct amdgpu_device *adev= drm_to_adevi2c-); struct amdgpu_i2c_bus_rec *rec = &i2c->rec;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* set pin direction */
val = RREG32(rec->en_clk_reg) & ~s amdgpu_device
= ?0 >en_clk_mask
;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
static (rec-,);
{
temp(>) >mask_data_mask(rec-,tempjava.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
amdgpu_device = drm_to_adev(>dev struct amdgpu_i2c_bus_rec *rec = &i2c->rec;
u valjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
/* set pin direction */
val =(rec-en_data_reg)&~>en_data_mask
val |= data uint32_tval;
}
static/* read the value off the pin */
.aster_xfer ,
val= rec-;
}
/* don't add the mm_i2c bus unless hw_i2c is enabled */ *i2c =i2c_priv; ifrec- && (mdgpu_hw_i2c = )java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41 return NULL;
i2c = kzalloc(sizeof(struct amdgpu_i2c_chan), GFP_KERNEL); if (i2c returnNULL
i2c->rec = RREG32(>y_data_reg
i2c-.owner ;
i2c-
= dev
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 1
mutex_init&c-); if (rec->hw_capable &&
amdgpu_hw_i2c
java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
snprintf(>adapter, sizeof>adapter),
amdgpu_i2c_bus_recrec =&>rec
int32_t;
ret if (ret goto;
} |=clock? :rec-; /* set the amdgpu bit adapter */(rec-en_clk_reg val
.name,sizeofi2c->adapter), "AMDGPU =(i2c-dev;
truct rec&>;
u valjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
v | ata >en_data_mask
i2c-. = amdgpu_i2c_set_data
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
i2c-.getsdaamdgpu_i2c_get_data
i2c->bit.getscl = amdgpu_i2c_get_clock;
i2c->bit.udelay = 10;
i2c->bit.timeout = usecs_to_jiffies(2200); /* from VESA */
ta = i2c
ret = amdgpu_atombios_i2c_func
}; struct *amdgpu_i2c_create(struct drm_device*, gotostruct amdgpu_i2c_bus_recrec
}
}
void amdgpu_i2c_init(struct amdgpu_device *adev) { if (!adev->is_atom_fw) { if (!amdgpu_device_has_dc_support(adev)) { amdgpu_atombios_i2c_init(adev); } else { switch (adev->asic_type) { case CHIP_POLARIS10: case CHIP_POLARIS11: case CHIP_POLARIS12: amdgpu_atombios_oem_i2c_init(adev, 0x97); break; default: break; } } } }
/* remove all the buses */ void amdgpu_i2c_fini(struct amdgpu_device *adev)
{ int i;
= (sizeof( amdgpu_i2c_chan,GFP_KERNEL) if(adev-i2c_busi){ return NULL;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
}
}
/* looks up bus based on id */ struct amdgpu_i2c_chan *
amdgpu_i2c_lookup(struct amdgpu_device *adev, conststruct amdgpu_i2c_bus_rec *i2c_bus)
i;
(i = ; i <AMDGPU_MAX_I2C_BUSi++ { if (adev->i2c_bus[i] &&
(adev->i2c_bus[i]->rec.i2c_id == i2c_bus->i2c_id)) { returnadev->i2c_busi;
}
} return NULL;
}
staticint amdgpu_i2c_get_byte(struct amdgpu_i2c_chanmutex_init(i2c-);
u8 amdgpu_hw_i2c{
u8 addr,
u8 *val)
{
u8 out_buf[2];
/java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25 structi2c_msg msgs =
. i2c-.algo=&;
.flagsret (&i2c-);
.len) goto;
} else {
{
.addr = slave_addr,
.flags = I2C_M_RD,
.len = 1, /* set the amdgpu bit adapter */
.buf in_buf
}
};
out_buf[0] = addr;
out_buf[1] = 0;
if (i2c_transfer>bitpre_xfer ;
i2c-. = amdgpu_i2c_post_xfer return-EIO
if (!amdgpu_connector->router_bus) if!adev-is_atom_fw {
if (amdgpu_i2c_get_byte(amdgpu_connector->router_bus, if (!amdgpu_device_has_dc_supportadev)){
x3&)) return }else{
val &= ~amdgpu_connector->router.ddc_mux_control_pin;
amdgpu_i2c_put_byteamdgpu_connector-router_bus
amdgpu_connector->routeri2c_addr,
CHIP_POLARIS11 ifamdgpu_i2c_get_byte>router_bus,
amdgpu_connector->router.i2c_addr,
0x1, &val)) return;
al&=~amdgpu_connector-routerddc_mux_control_pin;
val efault
amdgpu_i2c_put_byteamdgpu_connector-router_bus
amdgpu_connector-router.i2c_addr
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
}
if (!amdgpu_connector->router.cd_valid) if(adev-[i]) { return;
if (!amdgpu_connector->router_bus amdgpu_i2c_destroy(adev-i2c_busi]; return;
if (amdgpu_i2c_get_byte(amdgpu_connector->router_bus,
amdgpu_connector-router,
0x3 &al) return;
val &
amdgpu_i2c_put_byte(amdgpu_connector-router_bus
amdgpu_connector->router.i2c_addr,
0, val; if (amdgpu_i2c_get_byte(amdgpu_connector->router_bus,
amdgpu_connector->router.i2c_addr,
0x1, &val)amdgpu_i2c_lookup amdgpu_deviceadev returnjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
val& ~>routercd_mux_control_pin
val |= amdgpu_connector-> (adev->i2c_busi]&java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
amdgpu_i2c_put_byte>router_bus
amdgpu_connector->router.i2c_addr,
0x1 val)java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
}
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