OpenE2K/qemu-e2k
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ff557c272c
qemu-e2k/include/hw/misc
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Glenn Miles ff557c272c misc/pca9552: Let external devices set pca9552 inputs 
Allow external devices to drive pca9552 input pins by adding
input GPIO's to the model.  This allows a device to connect
its output GPIO's to the pca9552 input GPIO's.

In order for an external device to set the state of a pca9552
pin, the pin must first be configured for high impedance (LED
is off).  If the pca9552 pin is configured to drive the pin low
(LED is on), then external input will be ignored.

Here is a table describing the logical state of a pca9552 pin
given the state being driven by the pca9552 and an external device:

                   PCA9552
                   Configured
                   State

                  | Hi-Z | Low |
            ------+------+-----+
  External   Hi-Z |  Hi  | Low |
  Device    ------+------+-----+
  State      Low  |  Low | Low |
            ------+------+-----+

Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Signed-off-by: Glenn Miles <milesg@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
2024-02-23 23:24:42 +10:00
..
macio include/: spelling fixes 2023-09-08 13:08:52 +03:00
a9scu.h
allwinner-a10-ccm.h hw/misc: Allwinner-A10 Clock Controller Module Emulation 2023-01-12 16:50:19 +00:00
allwinner-a10-dramc.h hw/misc: Allwinner A10 DRAM Controller Emulation 2023-01-12 16:50:19 +00:00
allwinner-cpucfg.h
allwinner-h3-ccu.h
allwinner-h3-dramc.h
allwinner-h3-sysctrl.h
allwinner-r40-ccu.h hw/arm/allwinner-r40: add Clock Control Unit 2023-06-06 10:19:31 +01:00
allwinner-r40-dramc.h hw/arm/allwinner-r40: add SDRAM controller device 2023-06-06 10:19:32 +01:00
allwinner-sid.h
allwinner-sramc.h hw: arm: allwinner-sramc: Add SRAM Controller support for R40 2023-06-06 10:19:33 +01:00
arm11scu.h
arm_integrator_debug.h
armsse-cpu-pwrctrl.h
armsse-cpuid.h
armsse-mhu.h
armv7m_ras.h
aspeed_hace.h Clean up decorations and whitespace around header guards 2022-05-11 16:50:32 +02:00
aspeed_i3c.h
aspeed_lpc.h Don't include headers already included by qemu/osdep.h 2023-02-08 07:28:05 +01:00
aspeed_peci.h hw/misc/aspeed: Add PECI controller 2022-06-30 09:21:14 +02:00
aspeed_sbc.h aspeed: sbc: Allow per-machine settings 2022-07-14 16:24:38 +02:00
aspeed_scu.h bulk: Do not declare function prototypes using 'extern' keyword 2023-08-31 19:47:43 +02:00
aspeed_sdmc.h
aspeed_xdma.h
auxbus.h hw/i2c: spelling fixes 2023-08-31 19:47:43 +02:00
avr_power.h
bcm2835_cprman_internals.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
bcm2835_cprman.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
bcm2835_mbox_defs.h
bcm2835_mbox.h
bcm2835_mphi.h
bcm2835_powermgt.h
bcm2835_property.h hw/arm/bcm2835_property: Implement "get command line" message 2023-05-02 15:47:40 +01:00
bcm2835_rng.h
bcm2835_thermal.h
cbus.h
djmemc.h q800: add djMEMC memory controller 2023-10-06 10:33:43 +02:00
empty_slot.h
grlib_ahb_apb_pnp.h
imx6_ccm.h
imx6_src.h
imx6ul_ccm.h
imx7_ccm.h
imx7_gpr.h
imx7_snvs.h fsl-imx: add simple RTC emulation for i.MX6 and i.MX7 boards 2023-12-19 18:03:32 +00:00
imx7_src.h Add i.MX7 SRC device implementation 2023-08-31 09:45:17 +01:00
imx25_ccm.h
imx31_ccm.h
imx_ccm.h
imx_rngc.h
iosb.h q800: add IOSB subsystem 2023-10-06 10:33:43 +02:00
iotkit-secctl.h
iotkit-sysctl.h
iotkit-sysinfo.h
ivshmem.h
lasi.h lasi: Add reset I/O ports for LASI audio and FDC 2024-02-11 13:20:23 +01:00
led.h
mac_via.h mac_via: work around underflow in TimeDBRA timing loop in SETUPTIMEK 2023-10-06 10:33:43 +02:00
mchp_pfsoc_dmc.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
mchp_pfsoc_ioscb.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
mchp_pfsoc_sysreg.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
mips_cmgcr.h hw/mips: Declare all length properties as unsigned 2023-03-08 00:37:48 +01:00
mips_cpc.h
mips_itu.h hw/misc/mips_itu: Remove MIPSITUState::saar field 2024-02-15 15:53:12 +01:00
mos6522.h input/adb: Only include header where needed 2023-02-06 11:41:39 +00:00
mps2-fpgaio.h
mps2-scc.h hw/misc/mps2-scc: Make changes needed for AN536 FPGA image 2024-02-15 14:32:38 +00:00
msf2-sysreg.h
npcm7xx_clk.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
npcm7xx_gcr.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
npcm7xx_mft.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
npcm7xx_pwm.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
npcm7xx_rng.h hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
nrf51_rng.h
pca9552_regs.h
pca9552.h misc/pca9552: Let external devices set pca9552 inputs 2024-02-23 23:24:42 +10:00
pvpanic.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
sifive_e_aon.h hw/misc: sifive_e_aon: Support the watchdog timer of HiFive 1 rev b. 2023-07-10 22:29:14 +10:00
sifive_e_prci.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
sifive_test.h
sifive_u_otp.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
sifive_u_prci.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
stm32f2xx_syscfg.h
stm32f4xx_exti.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
stm32f4xx_syscfg.h Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
stm32l4x5_exti.h hw/misc: Implement STM32L4x5 EXTI 2024-01-15 17:12:22 +00:00
stm32l4x5_syscfg.h hw/misc: Implement STM32L4x5 SYSCFG 2024-01-15 17:12:22 +00:00
tz-mpc.h
tz-msc.h
tz-ppc.h
unimp.h
virt_ctrl.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
vmcoreinfo.h
xlnx-cfi-if.h hw/misc: Introduce the Xilinx CFI interface 2023-09-08 16:41:34 +01:00
xlnx-versal-cframe-reg.h hw: Replace anti-social QOM type names (again) 2023-12-20 10:29:23 +01:00
xlnx-versal-cfu.h hw: Replace anti-social QOM type names (again) 2023-12-20 10:29:23 +01:00
xlnx-versal-crl.h hw/misc/xlnx-versal-crl: Include generic 'cpu-qom.h' instead of 'cpu.h' 2024-01-26 11:30:48 +00:00
xlnx-versal-pmc-iou-slcr.h hw/misc, hw/ssi: Fix some URLs for AMD / Xilinx models 2023-11-27 15:38:43 +00:00
xlnx-versal-trng.h hw/misc: Introduce AMD/Xilix Versal TRNG device 2023-11-02 14:42:03 +00:00
xlnx-versal-xramc.h
xlnx-zynqmp-apu-ctrl.h hw/misc: Move some arm-related files from specific_ss into softmmu_ss 2022-12-15 17:37:47 +00:00
xlnx-zynqmp-crf.h hw/misc: Add a model of the Xilinx ZynqMP CRF 2022-03-18 11:31:20 +00:00