DMA AND INTERRUPT MASKING FUNCTIONS(9)

✨ DMA and interrupt masking functions ✨

okay bestie, welcome to the Kernel API Manual 💖 this one's all about the ath5k DMA + interrupt-masking corner of the kernel, and honestly? it's giving backstage-pass energy 🎀

So here's the tea ☕ — this is where we set up the descriptor pointers (rxdp/txdp), start and stop the DMA engine, and handle the queue setup for the 5210 chipset (the rest of the chipsets get handled over on qcu.c, no cap — they're just not invited to this party 🫶). On top of all that, we also set up the interrupt mask register (IMR) and read the various interrupt status registers (ISR). Like, that's the whole job description and she ate 💅

🌸 SEE ALSO 🌸

• 🦋 Kernel file ./drivers/net/wireless/ath/ath5k/dma.c — the main character herself, go read her
• 💫 ath5k_hw_start_rx_dma(9)
• 💫 ath5k_hw_stop_rx_dma(9)
• 💫 ath5k_hw_get_rxdp(9)
• 💫 ath5k_hw_set_rxdp(9)
• 💫 ath5k_hw_start_tx_dma(9)
• 💫 ath5k_hw_stop_tx_dma(9)
• 💫 ath5k_hw_stop_beacon_queue(9)
• 💫 ath5k_hw_get_txdp(9)
• 💫 ath5k_hw_set_txdp(9)
• 💫 ath5k_hw_update_tx_triglevel(9)
• 💫 ath5k_hw_is_intr_pending(9)
• 💫 ath5k_hw_get_isr(9)
• 💫 ath5k_hw_set_imr(9)
• 💫 ath5k_hw_dma_init(9)
• 💫 ath5k_hw_dma_stop(9)

like literally every single one of them, i'm not skipping a single bestie, iykyk 💀

and that's the whole page, periodt 🌈 this lil gem lives in ./drivers/net/wireless/ath/ath5k and she's stamped October 2026 — go off, october icon 👑💜