Can't install the wireless driver in HP Pavilion dv2419us

I've just installed Ubuntu 13.04 in an old HP Pavilion dv2419us. The problem is, Ubuntu doesn't detect the wireless card. But it works fine in Windows 7.

The following command returns nothing!

lspci -vvnn | grep 14e4

And the lspci output is:

    00:00.1 RAM memory: NVIDIA Corporation C51 Memory Controller 0 (rev a2)
00:00.2 RAM memory: NVIDIA Corporation C51 Memory Controller 1 (rev a2)
00:00.3 RAM memory: NVIDIA Corporation C51 Memory Controller 5 (rev a2)
00:00.4 RAM memory: NVIDIA Corporation C51 Memory Controller 4 (rev a2)
00:00.5 RAM memory: NVIDIA Corporation C51 Host Bridge (rev a2)
00:00.6 RAM memory: NVIDIA Corporation C51 Memory Controller 3 (rev a2)
00:00.7 RAM memory: NVIDIA Corporation C51 Memory Controller 2 (rev a2)
00:02.0 PCI bridge: NVIDIA Corporation C51 PCI Express Bridge (rev a1)
00:03.0 PCI bridge: NVIDIA Corporation C51 PCI Express Bridge (rev a1)
00:05.0 VGA compatible controller: NVIDIA Corporation C51 [GeForce Go 6150] (rev a2)
00:09.0 RAM memory: NVIDIA Corporation MCP51 Host Bridge (rev a2)
00:0a.0 ISA bridge: NVIDIA Corporation MCP51 LPC Bridge (rev a3)
00:0a.1 SMBus: NVIDIA Corporation MCP51 SMBus (rev a3)
00:0a.3 Co-processor: NVIDIA Corporation MCP51 PMU (rev a3)
00:0b.0 USB controller: NVIDIA Corporation MCP51 USB Controller (rev a3)
00:0b.1 USB controller: NVIDIA Corporation MCP51 USB Controller (rev a3)
00:0d.0 IDE interface: NVIDIA Corporation MCP51 IDE (rev f1)
00:0e.0 IDE interface: NVIDIA Corporation MCP51 Serial ATA Controller (rev f1)
00:10.0 PCI bridge: NVIDIA Corporation MCP51 PCI Bridge (rev a2)
00:10.1 Audio device: NVIDIA Corporation MCP51 High Definition Audio (rev a2)
00:14.0 Bridge: NVIDIA Corporation MCP51 Ethernet Controller (rev a3)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
05:09.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller
05:09.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 19)
05:09.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 0a)
05:09.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 05)

The command lspci -nn | grep 0280 gives no output.

Any suggestion regarding this?