2  * OMAP on-chip MMC/SD host emulation.
80 static void omap_mmc_fifolevel_update(OMAPMMCState *host)  in omap_mmc_fifolevel_update()  argument
82     if (!host->transfer && !host->fifo_len) {  in omap_mmc_fifolevel_update()
83         host->status &= 0xf3ff;  in omap_mmc_fifolevel_update()
87     if (host->fifo_len > host->af_level && host->ddir) {  in omap_mmc_fifolevel_update()
88         if (host->rx_dma) {  in omap_mmc_fifolevel_update()
89             host->status &= 0xfbff;  in omap_mmc_fifolevel_update()
90             qemu_irq_raise(host->dma_rx_gpio);  in omap_mmc_fifolevel_update()
92             host->status |= 0x0400;  in omap_mmc_fifolevel_update()
94         host->status &= 0xfbff;  in omap_mmc_fifolevel_update()
95         qemu_irq_lower(host->dma_rx_gpio);  in omap_mmc_fifolevel_update()
98     if (host->fifo_len < host->ae_level && !host->ddir) {  in omap_mmc_fifolevel_update()
99         if (host->tx_dma) {  in omap_mmc_fifolevel_update()
100             host->status &= 0xf7ff;  in omap_mmc_fifolevel_update()
101             qemu_irq_raise(host->dma_tx_gpio);  in omap_mmc_fifolevel_update()
103             host->status |= 0x0800;  in omap_mmc_fifolevel_update()
105         qemu_irq_lower(host->dma_tx_gpio);  in omap_mmc_fifolevel_update()
106         host->status &= 0xf7ff;  in omap_mmc_fifolevel_update()
128 static void omap_mmc_command(OMAPMMCState *host, int cmd, int dir,  in omap_mmc_command()  argument
138         host->status |= 0x0001;  in omap_mmc_command()
146         host->fifo_start = 0;  in omap_mmc_command()
147         host->fifo_len = 0;  in omap_mmc_command()
148         host->transfer = 1;  in omap_mmc_command()
149         host->ddir = dir;  in omap_mmc_command()
151         host->transfer = 0;  in omap_mmc_command()
157     request.arg = host->arg;  in omap_mmc_command()
160     rsplen = sdbus_do_command(&host->sdbus, &request, response);  in omap_mmc_command()
181         if (host->sdio & (1 << 13))  in omap_mmc_command()
203             host->status &= 0xe000;  in omap_mmc_command()
205             host->status |= 0x1000;  in omap_mmc_command()
220         host->status |= 0x4000;  in omap_mmc_command()
222         host->status &= 0xb000;  in omap_mmc_command()
226             host->rsp[~rsplen & 7] = response[(rsplen << 1) | 1] |  in omap_mmc_command()
230         host->status |= 0x0080;  in omap_mmc_command()
232         host->status |= 0x0005;         /* Makes it more real */  in omap_mmc_command()
234         host->status |= 0x0001;  in omap_mmc_command()
237 static void omap_mmc_transfer(OMAPMMCState *host)  in omap_mmc_transfer()  argument
241     if (!host->transfer)  in omap_mmc_transfer()
245         if (host->ddir) {  in omap_mmc_transfer()
246             if (host->fifo_len > host->af_level)  in omap_mmc_transfer()
249             value = sdbus_read_byte(&host->sdbus);  in omap_mmc_transfer()
250             host->fifo[(host->fifo_start + host->fifo_len) & 31] = value;  in omap_mmc_transfer()
251             if (-- host->blen_counter) {  in omap_mmc_transfer()
252                 value = sdbus_read_byte(&host->sdbus);  in omap_mmc_transfer()
253                 host->fifo[(host->fifo_start + host->fifo_len) & 31] |=  in omap_mmc_transfer()
255                 host->blen_counter --;  in omap_mmc_transfer()
258             host->fifo_len ++;  in omap_mmc_transfer()
260             if (!host->fifo_len)  in omap_mmc_transfer()
263             value = host->fifo[host->fifo_start] & 0xff;  in omap_mmc_transfer()
264             sdbus_write_byte(&host->sdbus, value);  in omap_mmc_transfer()
265             if (-- host->blen_counter) {  in omap_mmc_transfer()
266                 value = host->fifo[host->fifo_start] >> 8;  in omap_mmc_transfer()
267                 sdbus_write_byte(&host->sdbus, value);  in omap_mmc_transfer()
268                 host->blen_counter --;  in omap_mmc_transfer()
271             host->fifo_start ++;  in omap_mmc_transfer()
272             host->fifo_len --;  in omap_mmc_transfer()
273             host->fifo_start &= 31;  in omap_mmc_transfer()
276         if (host->blen_counter == 0) {  in omap_mmc_transfer()
277             host->nblk_counter --;  in omap_mmc_transfer()
278             host->blen_counter = host->blen;  in omap_mmc_transfer()
280             if (host->nblk_counter == 0) {  in omap_mmc_transfer()
281                 host->nblk_counter = host->nblk;  in omap_mmc_transfer()
282                 host->transfer = 0;  in omap_mmc_transfer()
283                 host->status |= 0x0008;  in omap_mmc_transfer()
298 static void omap_mmc_pseudo_reset(OMAPMMCState *host)  in omap_mmc_pseudo_reset()  argument
300     host->status = 0;  in omap_mmc_pseudo_reset()
301     host->fifo_len = 0;  in omap_mmc_pseudo_reset()
304 static void omap_mmc_reset(OMAPMMCState *host)  in omap_mmc_reset()  argument
306     host->last_cmd = 0;  in omap_mmc_reset()
307     memset(host->rsp, 0, sizeof(host->rsp));  in omap_mmc_reset()
308     host->arg = 0;  in omap_mmc_reset()
309     host->dw = 0;  in omap_mmc_reset()
310     host->mode = 0;  in omap_mmc_reset()
311     host->enable = 0;  in omap_mmc_reset()
312     host->mask = 0;  in omap_mmc_reset()
313     host->cto = 0;  in omap_mmc_reset()
314     host->dto = 0;  in omap_mmc_reset()
315     host->blen = 0;  in omap_mmc_reset()
316     host->blen_counter = 0;  in omap_mmc_reset()
317     host->nblk = 0;  in omap_mmc_reset()
318     host->nblk_counter = 0;  in omap_mmc_reset()
319     host->tx_dma = 0;  in omap_mmc_reset()
320     host->rx_dma = 0;  in omap_mmc_reset()
321     host->ae_level = 0x00;  in omap_mmc_reset()
322     host->af_level = 0x1f;  in omap_mmc_reset()
323     host->transfer = 0;  in omap_mmc_reset()
324     host->cdet_wakeup = 0;  in omap_mmc_reset()
325     host->cdet_enable = 0;  in omap_mmc_reset()
326     host->clkdiv = 0;  in omap_mmc_reset()
328     omap_mmc_pseudo_reset(host);  in omap_mmc_reset()