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[DM/PCI] Add /proc access in RT-Smart user #10196

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Merged
Rbb666 merged 1 commit into from
May 23, 2025
Merged

[DM/PCI] Add /proc access in RT-Smart user #10196

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3 changes: 3 additions & 0 deletions components/drivers/include/drivers/pci.h
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Original file line number Diff line number Diff line change
Expand Up @@ -157,7 +157,10 @@ struct rt_pci_device
rt_uint8_t pin;
struct rt_pic *intx_pic;

rt_bool_t pm_enabled;

struct rt_pci_bus_resource resource[RT_PCI_BAR_NR_MAX];
struct rt_pci_bus_resource rom;

rt_uint8_t pme_cap;
rt_uint8_t msi_cap;
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3 changes: 3 additions & 0 deletions components/drivers/pci/SConscript
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Expand Up @@ -14,6 +14,9 @@ src = ['access.c', 'host-bridge.c', 'irq.c', 'pci.c', 'pme.c', 'probe.c']
if GetDepend(['RT_USING_OFW']):
src += ['ofw.c']

if GetDepend(['RT_USING_DFS_PROCFS']):
src += ['procfs.c']

if GetDepend(['RT_PCI_ECAM']):
src += ['ecam.c']

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4 changes: 4 additions & 0 deletions components/drivers/pci/pci.c
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Expand Up @@ -695,6 +695,10 @@ rt_err_t rt_pci_device_alloc_resource(struct rt_pci_host_bridge *host_bridge,
rt_pci_write_config_u32(pdev, rom_addr, addr);
}
command |= PCIM_CMD_MEMEN;

pdev->rom.base = addr;
pdev->rom.size = size;
pdev->rom.flags = PCI_BUS_REGION_F_MEM;
}
}

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1 change: 1 addition & 0 deletions components/drivers/pci/pme.c
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Expand Up @@ -107,6 +107,7 @@ static void pci_pme_active(struct rt_pci_device *pdev, rt_bool_t enable)
}

rt_pci_write_config_u16(pdev, pdev->pme_cap + PCIR_POWER_STATUS, pmcsr);
pdev->pm_enabled = enable;
}

void rt_pci_pme_active(struct rt_pci_device *pdev, rt_bool_t enable)
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5 changes: 5 additions & 0 deletions components/drivers/pci/probe.c
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Expand Up @@ -17,6 +17,8 @@
#include <drivers/pci.h>
#include <drivers/core/bus.h>

#include "procfs.h"

rt_inline void spin_lock(struct rt_spinlock *spinlock)
{
rt_hw_spin_lock(&spinlock->lock);
Expand Down Expand Up @@ -146,6 +148,7 @@ struct rt_pci_device *rt_pci_scan_single_device(struct rt_pci_bus *bus, rt_uint3
goto _end;
}

pci_procfs_attach(pdev);
rt_pci_device_register(pdev);

_end:
Expand Down Expand Up @@ -901,6 +904,8 @@ rt_err_t rt_pci_device_remove(struct rt_pci_device *pdev)
{
struct rt_pci_bus *bus = pdev->bus;

pci_procfs_detach(pdev);

spin_lock(&bus->lock);

while (pdev->parent.ref_count > 1)
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