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

1. Add ROM base info.
2. Save th PM status.

Signed-off-by: GuEe-GUI <[email protected]>

Author: GuEe-GUI

components/drivers/include/drivers/pci.h

@@ -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;

components/drivers/pci/SConscript

@@ -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']
 

components/drivers/pci/pci.c

@@ -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;
         }
     }
 

components/drivers/pci/pme.c

@@ -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)

components/drivers/pci/probe.c

@@ -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);
@@ -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:
@@ -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)