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ff557c272c
qemu/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 Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
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 Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
allwinner-h3-ccu.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
allwinner-h3-dramc.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
allwinner-h3-sysctrl.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
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 Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
allwinner-sramc.h hw: arm: allwinner-sramc: Add SRAM Controller support for R40 2023-06-06 10:19:33 +01:00
arm11scu.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
arm_integrator_debug.h arm: Update infocenter.arm.com URLs 2021-02-11 11:50:14 +00:00
armsse-cpu-pwrctrl.h hw/misc/sse-cpu-pwrctrl: Implement SSE-300 CPU<N>_PWRCTRL register block 2021-03-08 17:20:02 +00:00
armsse-cpuid.h hw/arm/mps2: Update old infocenter.arm.com URLs 2021-03-08 11:54:16 +00:00
armsse-mhu.h hw/arm/mps2: Update old infocenter.arm.com URLs 2021-03-08 11:54:16 +00:00
armv7m_ras.h arm: Move M-profile RAS register block into its own device 2021-09-01 11:08:18 +01:00
aspeed_hace.h Clean up decorations and whitespace around header guards 2022-05-11 16:50:32 +02:00
aspeed_i3c.h hw/misc/aspeed_i3c.c: Introduce a dummy AST2600 I3C model. 2022-01-20 11:47:53 +00:00
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 Use OBJECT_DECLARE_TYPE when possible 2020-09-18 14:12:32 -04:00
aspeed_xdma.h hw/misc/aspeed_xdma: Add AST2600 support 2021-05-01 10:03:52 +02:00
auxbus.h hw/i2c: spelling fixes 2023-08-31 19:47:43 +02:00
avr_power.h hw: Remove superfluous includes of hw/hw.h 2021-05-02 17:24:50 +02:00
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 hw/arm/bcm283x: Correct the license text 2020-03-23 17:22:30 +00:00
bcm2835_mbox.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
bcm2835_mphi.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
bcm2835_powermgt.h hw/arm: Add basic power management to raspi. 2021-07-02 11:48:36 +01:00
bcm2835_property.h hw/arm/bcm2835_property: Implement "get command line" message 2023-05-02 15:47:40 +01:00
bcm2835_rng.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
bcm2835_thermal.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
cbus.h Include hw/irq.h a lot less 2019-08-16 13:31:52 +02:00
djmemc.h q800: add djMEMC memory controller 2023-10-06 10:33:43 +02:00
empty_slot.h hw/misc/empty_slot: Name the slots when created 2020-06-09 06:59:44 +02:00
grlib_ahb_apb_pnp.h hw: Replace anti-social QOM type names 2021-03-19 15:18:43 +01:00
imx6_ccm.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx6_src.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx6ul_ccm.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx7_ccm.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx7_gpr.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
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 Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx31_ccm.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx_ccm.h Use OBJECT_DECLARE_TYPE when possible 2020-09-18 14:12:32 -04:00
imx_rngc.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
iosb.h q800: add IOSB subsystem 2023-10-06 10:33:43 +02:00
iotkit-secctl.h hw/misc/iotkit-secctl.c: Implement SSE-300 PID register values 2021-03-08 17:20:01 +00:00
iotkit-sysctl.h hw/misc/iotkit-sysctl: Handle SSE-300 changes to PDCM_PD_*_SENSE registers 2021-03-08 17:20:02 +00:00
iotkit-sysinfo.h hw/misc/iotkit-sysinfo.c: Implement SYS_CONFIG1 and IIDR 2021-03-08 17:20:01 +00:00
ivshmem.h ivshmem: add check on protocol version in QEMU 2015-10-24 18:03:18 +02:00
lasi.h lasi: Add reset I/O ports for LASI audio and FDC 2024-02-11 13:20:23 +01:00
led.h hw/misc/led: Add yellow LED 2021-03-15 00:39:30 +01:00
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 hw/mips: Fix Lesser GPL version number 2020-11-03 16:51:13 +01:00
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 hw/misc/mps2-fpgaio: Support AN547 DBGCTRL register 2021-03-08 17:20:03 +00:00
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 Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
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 Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
pca9552_regs.h misc: add pca9552 LED blinker model 2018-06-08 13:15:32 +01:00
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: Use DECLARE_*CHECKER* macros 2020-09-18 13:49:48 -04:00
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 hw/misc/stm32f2xx_syscfg: Remove extraneous IRQ 2020-11-10 11:03:48 +00:00
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 Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
tz-msc.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
tz-ppc.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
unimp.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
virt_ctrl.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
vmcoreinfo.h qom: fix objects with improper parent type 2020-10-12 11:50:22 -04:00
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 hw/misc: versal: Add a model of the XRAM controller 2021-03-12 12:40:09 +00:00
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